diff --git a/misc/codegen/templates/ql_db.mustache b/misc/codegen/templates/ql_db.mustache
index e63e0aae9034..a82ff78ec51f 100644
--- a/misc/codegen/templates/ql_db.mustache
+++ b/misc/codegen/templates/ql_db.mustache
@@ -29,9 +29,79 @@ module Raw {
     {{type}} {{getter}}({{#is_indexed}}int index{{/is_indexed}}) {
       {{tablename}}({{#tableparams}}{{^first}}, {{/first}}{{param}}{{/tableparams}})
     }
+    {{#is_indexed}}
+    /**
+     * Gets the number of {{doc_plural}}.
+    {{#internal}}
+     * INTERNAL: Do not use.
+    {{/internal}}
+     */
+    int getNumberOf{{plural}}() {
+      result = count(int i | {{tablename}}(this, i, _))
+    }
+    {{/is_indexed}}
     {{/synth}}
     {{/properties}}
   }
 
+
+  {{#final}}
+  private Element getImmediateChildOf{{name}}({{name}} e, int index) {
+    {{^has_children}}none(){{/has_children}}
+    {{#has_children}}
+    {{! n is the base offset 0, for ease of generation }}
+    {{! n<child> is constructed to be strictly greater than the indexes for <child> children }}
+        exists(int n{{#all_children}}, int n{{property.singular}}{{/all_children}} |
+            n = 0
+            {{#all_children}}
+                {{#property}}
+                {{#synth}}
+                       and
+                       n{{singular}} = n{{prev}}
+                {{/synth}}
+                {{^synth}}
+                    {{! n<child> is defined on top of the previous definition }}
+                    {{! for single and optional properties it adds 1 (regardless of whether the optional property exists) }}
+                    {{! for repeated it adds 1 + the maximum index (which works for repeated optional as well) }}
+                        and
+                        n{{singular}} = n{{prev}} {{^is_repeated}}+ 1{{/is_repeated}}{{#is_repeated}}+ e.getNumberOf{{plural}}(){{/is_repeated}}
+                {{/synth}}
+                {{/property}}
+            {{/all_children}} and (
+        none()
+        {{#all_children}}
+            {{#property}}
+            {{^synth}}
+                or
+                {{#is_repeated}}
+                    result = e.get{{singular}}(index - n{{prev}})
+                {{/is_repeated}}
+                {{^is_repeated}}
+                    index = n{{prev}} and result = e.get{{singular}}()
+                {{/is_repeated}}
+            {{/synth}}
+            {{/property}}
+        {{/all_children}}
+        ))
+    {{/has_children}}
+    }
+    {{/final}}
+
   {{/classes}}
+
+  /**
+   * Gets the immediate child indexed at `index`. Indexes are not guaranteed to be contiguous, but are guaranteed to be distinct.
+   */
+  pragma[nomagic]
+  Element getImmediateChild(Element e, int index) {
+  // why does this look more complicated than it should?
+  // * none() simplifies generation, as we can append `or ...` without a special case for the first item
+  none()
+  {{#classes}}
+      {{#final}}
+          or
+          result = getImmediateChildOf{{name}}(e, index)
+      {{/final}}
+  {{/classes}}
+  }
 }
diff --git a/misc/codegen/templates/ql_parent.mustache b/misc/codegen/templates/ql_parent.mustache
index 84bc0d79a0b7..91c5de98c47e 100644
--- a/misc/codegen/templates/ql_parent.mustache
+++ b/misc/codegen/templates/ql_parent.mustache
@@ -23,7 +23,12 @@ private module Impl {
                         {{! for single and optional properties it adds 1 (regardless of whether the optional property exists) }}
                         {{! for repeated it adds 1 + the maximum index (which works for repeated optional as well) }}
                             and
-                            n{{singular}} = n{{prev}} + 1{{#is_repeated}}+ max(int i | i = -1 or exists(e.get{{#type_is_hideable}}Immediate{{/type_is_hideable}}{{singular}}(i)) | i){{/is_repeated}}
+                            {{#type_is_hideable}}
+                            n{{singular}} = n{{prev}} + 1{{#is_repeated}}+ max(int i | i = -1 or exists(e.getImmediate{{singular}}(i)) | i){{/is_repeated}}
+                            {{/type_is_hideable}}
+                            {{^type_is_hideable}}
+                            n{{singular}} = n{{prev}} {{^is_repeated}}+ 1{{/is_repeated}}{{#is_repeated}}+ e.getNumberOf{{plural}}(){{/is_repeated}}
+                            {{/type_is_hideable}}
                     {{/property}}
                 {{/all_children}} and (
             none()
diff --git a/misc/codegen/templates/ql_synth_types.mustache b/misc/codegen/templates/ql_synth_types.mustache
index c76654b8ea95..14a48f635e5f 100644
--- a/misc/codegen/templates/ql_synth_types.mustache
+++ b/misc/codegen/templates/ql_synth_types.mustache
@@ -32,9 +32,28 @@ module Synth {
   {{/root}}
   {{/non_final_classes}}
 
+  /**
+   * INTERNAL: Do not use.
+   *
+   * Gets the parent of synthetic element `e`.
+   */
+  Raw::{{root}} getSynthParent(T{{root}} e) {
+    none()
+    {{#final_classes}}
+    {{#is_fresh_synth}}
+    {{#has_params}}
+    or
+    e = T{{name}}({{#params}}{{#first}}result{{/first}}{{^first}}, _{{/first}}{{/params}})
+    {{/has_params}}
+    {{/is_fresh_synth}}
+    {{/final_classes}}
+  }
+
+
   {{#final_classes}}
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `T{{name}}`, if possible.
    */
   T{{name}} convert{{name}}FromRaw(Raw::Element e) {
diff --git a/rust/ql/.generated.list b/rust/ql/.generated.list
index 1f580178999e..5ed2894e273f 100644
--- a/rust/ql/.generated.list
+++ b/rust/ql/.generated.list
@@ -287,7 +287,6 @@ lib/codeql/rust/elements/internal/ImplConstructor.qll 24edccca59f70d812d1458b412
 lib/codeql/rust/elements/internal/ImplTraitTypeReprConstructor.qll 1ed355e5e56f432b24b6f4778e4dc45c6e65095190cacb7a5015529e0c9d01f8 c8505185a042da4eb20a0cc32323194a0290c4bf821c7e0fce7351b194b10f31
 lib/codeql/rust/elements/internal/IndexExprConstructor.qll 99bdc3d793c4dbd993860da60abe2b7c604345d645e86916462bc55a6939a5d1 3fe9d7da725956903707806aadbecac8d5b3874e8bed63c9bab54fff630e75dd
 lib/codeql/rust/elements/internal/InferTypeReprConstructor.qll bc5f16853401617fc9c5af8a1287a23c5921df1b615cfbe2d7c7a70145ecfcbd da93bd28ea2daade2cbb0a729be3fbf05f72bc02009565c7bb062e4f68fdb9e7
-lib/codeql/rust/elements/internal/ItemImpl.qll e3fb78d572ce1c3cc857d2671bd71ff4d7850321acfddc5f15533ff87accda79 fbabc2081e4b2773b04938d57bb51af908c80b7bc53c3127c74ab5d4fb9837bc
 lib/codeql/rust/elements/internal/ItemListConstructor.qll 08af3bd12536941c3dd4a43c81cc861be24325e242e2593c087a3ce632674291 2fa166159c409d2aaffa73a30babb40829a6de580bd40894d909ee6152801082
 lib/codeql/rust/elements/internal/ItemListImpl.qll 195dbe93c334ad2bfc29db530bda9aaea88fc31696b2f230faae9e6c2ecb74a8 e498983a5b2f7a91e2fd336e85ac17e521a18c677784a0788d95bb283f3652e7
 lib/codeql/rust/elements/internal/LabelConstructor.qll 1f814c94251e664bfa1b1a606aef995382e40e78d4f953350ec951ee0bc8bd34 3157fb8c7c6bd365a739f217ad73ba1e0b65ccd59b922e5ab034e3449915b36c
@@ -568,7 +567,7 @@ lib/codeql/rust/elements/internal/generated/ParamList.qll eaa0cd4402d3665013d47e
 lib/codeql/rust/elements/internal/generated/ParenExpr.qll 812d2ff65079277f39f15c084657a955a960a7c1c0e96dd60472a58d56b945eb eb8c607f43e1fcbb41f37a10de203a1db806690e10ff4f04d48ed874189cb0eb
 lib/codeql/rust/elements/internal/generated/ParenPat.qll 24f9dc7fce75827d6fddb856cd48f80168143151b27295c0bab6db5a06567a09 ebadbc6f5498e9ed754b39893ce0763840409a0721036a25b56e1ead7dcc09aa
 lib/codeql/rust/elements/internal/generated/ParenTypeRepr.qll 03f5c5b96a37adeb845352d7fcea3e098da9050e534972d14ac0f70d60a2d776 ed3d6e5d02086523087adebce4e89e35461eb95f2a66d1d4100fe23fc691b126
-lib/codeql/rust/elements/internal/generated/ParentChild.qll 6e86fd9b6d5ec1b4aeeb5472cc6d2ebf3328bbaa8605cf52c9add56652cc47dc 3cf2a8e12ffb6631221c7b94fa112e8e3be96efba697996862685a87b2c9aff7
+lib/codeql/rust/elements/internal/generated/ParentChild.qll f04ca3d02170f7e532a480cc81748cf04f1b022d5e0e32ffcdf0f15c8f1961aa 999104d69a5435c9cab594e04b82ed26ae38b1b1d2ac1dbbb315a433c586f941
 lib/codeql/rust/elements/internal/generated/ParenthesizedArgList.qll d901fdc8142a5b8847cc98fc2afcfd16428b8ace4fbffb457e761b5fd3901a77 5dbb0aea5a13f937da666ccb042494af8f11e776ade1459d16b70a4dd193f9fb
 lib/codeql/rust/elements/internal/generated/Pat.qll 3605ac062be2f294ee73336e9669027b8b655f4ad55660e1eab35266275154ee 7f9400db2884d336dd1d21df2a8093759c2a110be9bf6482ce8e80ae0fd74ed4
 lib/codeql/rust/elements/internal/generated/Path.qll 9b12afb46fc5a9ad3a811b05472621bbecccb900c47504feb7f29d96b28421ca bcacbffc36fb3e0c9b26523b5963af0ffa9fd6b19f00a2a31bdb2316071546bd
@@ -583,7 +582,7 @@ lib/codeql/rust/elements/internal/generated/PtrTypeRepr.qll 8d0ea4f6c7f8203340bf
 lib/codeql/rust/elements/internal/generated/PureSynthConstructors.qll e5b8e69519012bbaae29dcb82d53f7f7ecce368c0358ec27ef6180b228a0057f e5b8e69519012bbaae29dcb82d53f7f7ecce368c0358ec27ef6180b228a0057f
 lib/codeql/rust/elements/internal/generated/RangeExpr.qll 23cca03bf43535f33b22a38894f70d669787be4e4f5b8fe5c8f7b964d30e9027 18624cef6c6b679eeace2a98737e472432e0ead354cca02192b4d45330f047c9
 lib/codeql/rust/elements/internal/generated/RangePat.qll 80826a6a6868a803aa2372e31c52a03e1811a3f1f2abdb469f91ca0bfdd9ecb6 34ee1e208c1690cba505dff2c588837c0cd91e185e2a87d1fe673191962276a9
-lib/codeql/rust/elements/internal/generated/Raw.qll f50925f4925848cef73003adf01420566ca3efa16f491eadac62a30972ee9204 17d62252413618e1fa162c6c0b303ccfcac5f7f70cc170d739b20cc95f57035b
+lib/codeql/rust/elements/internal/generated/Raw.qll 14758dc2e2a9af251f24e24516eab0fc95d334c1da06f418ea5da3c5521642c9 a8b6637f57293a85714cc8761f8fd1e23780d58f3873acaa3c77acd9cbfcf19f
 lib/codeql/rust/elements/internal/generated/RefExpr.qll 7d995884e3dc1c25fc719f5d7253179344d63650e217e9ff6530285fe7a57f64 f2c3c12551deea4964b66553fb9b6423ee16fec53bd63db4796191aa60dc6c66
 lib/codeql/rust/elements/internal/generated/RefPat.qll 456ede39837463ee22a630ec7ab6c8630d3664a8ea206fcc6e4f199e92fa564c 5622062765f32930465ba6b170e986706f159f6070f48adee3c20e24e8df4e05
 lib/codeql/rust/elements/internal/generated/RefTypeRepr.qll 5b0663a6d234572fb3e467e276d019415caa95ef006438cc59b7af4e1783161e 0e27c8a8f0e323c0e4d6db01fca821bf07c0864d293cdf96fa891b10820c1e4b
@@ -608,7 +607,7 @@ lib/codeql/rust/elements/internal/generated/StructFieldList.qll 5da528a51a6a5db9
 lib/codeql/rust/elements/internal/generated/StructPat.qll c76fa005c2fd0448a8803233e1e8818c4123301eb66ac5cf69d0b9eaafc61e98 6e0dffccdce24bca20e87d5ba0f0995c9a1ae8983283e71e7dbfcf6fffc67a58
 lib/codeql/rust/elements/internal/generated/StructPatField.qll 5b5c7302dbc4a902ca8e69ff31875c867e295a16a626ba3cef29cd0aa248f179 4e192a0df79947f5cb0d47fdbbba7986137a6a40a1be92ae119873e2fad67edf
 lib/codeql/rust/elements/internal/generated/StructPatFieldList.qll 1a95a1bd9f64fb18e9571657cf2d02a8b13c747048a1f0f74baf31b91f0392ad fc274e414ff4ed54386046505920de92755ad0b4d39a7523cdffa4830bd53b37
-lib/codeql/rust/elements/internal/generated/Synth.qll 4c741d502d21d449c4e01010776f767c69b408c80ce7d10784b599463bcfd0e3 c76b8628663c126914ead897c779ce782294e9109125d61de958e0eee543abce
+lib/codeql/rust/elements/internal/generated/Synth.qll a8ea364358a2bc3a9226d451c0867e89c29509a0f54dd88ed23c77045db2c85a a44de5e84a63cb5a1bfa66b0df33bf28c9f8b6628393d0f3b2f6215dabee47bd
 lib/codeql/rust/elements/internal/generated/SynthConstructors.qll f41abfc73415b7accb38da7c107faebfe6843c270ad54e0e54a96e930dfe479a f41abfc73415b7accb38da7c107faebfe6843c270ad54e0e54a96e930dfe479a
 lib/codeql/rust/elements/internal/generated/Token.qll 77a91a25ca5669703cf3a4353b591cef4d72caa6b0b9db07bb9e005d69c848d1 2fdffc4882ed3a6ca9ac6d1fb5f1ac5a471ca703e2ffdc642885fa558d6e373b
 lib/codeql/rust/elements/internal/generated/TokenTree.qll 1a3c4f5f30659738641abdd28cb793dab3cfde484196b59656fc0a2767e53511 de2ebb210c7759ef7a6f7ee9f805e1cac879221287281775fc80ba34a5492edf
diff --git a/rust/ql/.gitattributes b/rust/ql/.gitattributes
index ff149fb36d36..bde61270e6aa 100644
--- a/rust/ql/.gitattributes
+++ b/rust/ql/.gitattributes
@@ -289,7 +289,6 @@
 /lib/codeql/rust/elements/internal/ImplTraitTypeReprConstructor.qll linguist-generated
 /lib/codeql/rust/elements/internal/IndexExprConstructor.qll linguist-generated
 /lib/codeql/rust/elements/internal/InferTypeReprConstructor.qll linguist-generated
-/lib/codeql/rust/elements/internal/ItemImpl.qll linguist-generated
 /lib/codeql/rust/elements/internal/ItemListConstructor.qll linguist-generated
 /lib/codeql/rust/elements/internal/ItemListImpl.qll linguist-generated
 /lib/codeql/rust/elements/internal/LabelConstructor.qll linguist-generated
diff --git a/rust/ql/lib/codeql/rust/elements/internal/AstNodeImpl.qll b/rust/ql/lib/codeql/rust/elements/internal/AstNodeImpl.qll
index 237ebfa6b413..69138190dba3 100644
--- a/rust/ql/lib/codeql/rust/elements/internal/AstNodeImpl.qll
+++ b/rust/ql/lib/codeql/rust/elements/internal/AstNodeImpl.qll
@@ -13,9 +13,9 @@ private import codeql.rust.controlflow.ControlFlowGraph
  */
 module Impl {
   private import rust
+  private import codeql.rust.elements.internal.ElementImpl::Impl as ElementImpl
   private import codeql.rust.elements.internal.generated.ParentChild
   private import codeql.rust.controlflow.ControlFlowGraph
-  private import codeql.rust.elements.internal.MacroCallImpl::Impl as MacroCallImpl
 
   /**
    * Gets the immediate parent of a non-`AstNode` element `e`.
@@ -71,21 +71,15 @@ module Impl {
     }
 
     /** Holds if this node is inside a macro expansion. */
-    predicate isInMacroExpansion() { MacroCallImpl::isInMacroExpansion(_, this) }
+    predicate isInMacroExpansion() { ElementImpl::MacroExpansion::isInMacroExpansion(this) }
 
     /**
      * Holds if this node exists only as the result of a macro expansion.
      *
      * This is the same as `isInMacroExpansion()`, but excludes AST nodes corresponding
-     * to macro arguments.
+     * to macro arguments, including attribute macro targets.
      */
-    pragma[nomagic]
-    predicate isFromMacroExpansion() {
-      exists(AstNode root |
-        MacroCallImpl::isInMacroExpansion(root, this) and
-        not this = root.(MacroCall).getATokenTreeNode()
-      )
-    }
+    predicate isFromMacroExpansion() { ElementImpl::MacroExpansion::isFromMacroExpansion(this) }
 
     /**
      * Gets a control flow node for this AST node, if any.
diff --git a/rust/ql/lib/codeql/rust/elements/internal/ElementImpl.qll b/rust/ql/lib/codeql/rust/elements/internal/ElementImpl.qll
index 7a464a378d1e..5df20664f7df 100644
--- a/rust/ql/lib/codeql/rust/elements/internal/ElementImpl.qll
+++ b/rust/ql/lib/codeql/rust/elements/internal/ElementImpl.qll
@@ -11,7 +11,115 @@ private import codeql.rust.elements.internal.generated.Element
  * be referenced directly.
  */
 module Impl {
+  private import rust
+  private import codeql.rust.elements.internal.generated.ParentChild
+  private import codeql.rust.elements.internal.generated.Synth
+  private import codeql.rust.elements.internal.generated.Raw
+  private import codeql.rust.elements.internal.LocationImpl
+
+  /**
+   * Provides logic for classifying elements with respect to macro expansions.
+   */
+  cached
+  module MacroExpansion {
+    /**
+     * Holds if `e` is superseded by an attribute macro expansion. That is, `e` is
+     * a transitive child of an item with an attribute macro expansion.
+     */
+    private predicate supersededByAttributeMacroExpansionRaw(Raw::Item item, Raw::Element e) {
+      exists(item.getAttributeMacroExpansion()) and
+      e = Raw::getImmediateChild(item, _) and
+      not e = item.getAttributeMacroExpansion() and
+      // Don't consider attributes themselves to be superseded.  E.g., in `#[a] fn
+      // f() {}` the macro expansion supersedes `fn f() {}` but not `#[a]`.
+      not e instanceof Raw::Attr
+      or
+      exists(Raw::Element parent |
+        e = Raw::getImmediateChild(parent, _) and
+        supersededByAttributeMacroExpansionRaw(item, parent)
+      )
+    }
+
+    private predicate isMacroExpansion(AstNode macro, AstNode expansion) {
+      expansion = macro.(MacroCall).getMacroCallExpansion()
+      or
+      expansion = macro.(Adt).getDeriveMacroExpansion(_)
+      or
+      expansion = macro.(Item).getAttributeMacroExpansion()
+    }
+
+    /**
+     * Gets the immediately enclosing macro invocation for element `e`, if any.
+     *
+     * The result is either a `MacroCall`, and `Adt` with a derive macro expansion, or
+     * an `Item` with an attribute macro expansion.
+     */
+    cached
+    AstNode getImmediatelyEnclosingMacroInvocation(Element e) {
+      isMacroExpansion(result, e)
+      or
+      exists(Element mid |
+        result = getImmediatelyEnclosingMacroInvocation(mid) and
+        mid = getImmediateParent(e) and
+        not isMacroExpansion(mid, e)
+      )
+    }
+
+    pragma[nomagic]
+    private predicate isAttributeMacroExpansionSourceLocation(Item i, Location l) {
+      exists(Raw::Locatable e, @location_default loc |
+        supersededByAttributeMacroExpansionRaw(Synth::convertElementToRaw(i), e) and
+        locatable_locations(e, loc) and
+        l = LocationImpl::TLocationDefault(loc)
+      )
+    }
+
+    /** Gets an AST node whose location is inside the token tree belonging to `mc`. */
+    pragma[nomagic]
+    private AstNode getATokenTreeNode(MacroCall mc) {
+      mc = getImmediatelyEnclosingMacroInvocation(result) and
+      mc.getTokenTree().getLocation().contains(result.getLocation())
+    }
+
+    /** Holds if `n` is inside a macro expansion. */
+    cached
+    predicate isInMacroExpansion(AstNode n) { exists(getImmediatelyEnclosingMacroInvocation(n)) }
+
+    /**
+     * Holds if `n` exists only as the result of a macro expansion.
+     *
+     * This is the same as `isInMacroExpansion(n)`, but excludes AST nodes corresponding
+     * to macro arguments, including attribute macro targets.
+     *
+     * Note: This predicate is a heuristic based on location information and may not be
+     * accurate in all cases.
+     */
+    cached
+    predicate isFromMacroExpansion(AstNode n) {
+      exists(AstNode macro |
+        macro = getImmediatelyEnclosingMacroInvocation(n) and
+        not n = getATokenTreeNode(macro) and
+        not isAttributeMacroExpansionSourceLocation(macro, n.getLocation())
+      )
+      or
+      isFromMacroExpansion(getImmediatelyEnclosingMacroInvocation(n))
+    }
+
+    cached
+    predicate isRelevantElement(Generated::Element e) {
+      exists(Raw::Element raw |
+        raw = Synth::convertElementToRaw(e) and
+        not supersededByAttributeMacroExpansionRaw(_, raw)
+      )
+      or
+      // Synthetic elements are relevant when their parent is
+      Synth::convertFormatArgsExprToRaw(_) = Synth::getSynthParent(e)
+    }
+  }
+
   class Element extends Generated::Element {
+    Element() { MacroExpansion::isRelevantElement(this) }
+
     override string toStringImpl() { result = this.getAPrimaryQlClass() }
 
     /**
diff --git a/rust/ql/lib/codeql/rust/elements/internal/ItemImpl.qll b/rust/ql/lib/codeql/rust/elements/internal/ItemImpl.qll
index f211708bc812..46e554e4b420 100644
--- a/rust/ql/lib/codeql/rust/elements/internal/ItemImpl.qll
+++ b/rust/ql/lib/codeql/rust/elements/internal/ItemImpl.qll
@@ -1,4 +1,3 @@
-// generated by codegen, remove this comment if you wish to edit this file
 /**
  * This module provides a hand-modifiable wrapper around the generated class `Item`.
  *
@@ -12,6 +11,7 @@ private import codeql.rust.elements.internal.generated.Item
  * be referenced directly.
  */
 module Impl {
+  // the following QLdoc is generated: if you need to edit it, do it in the schema file
   /**
    * An item such as a function, struct, enum, etc.
    *
@@ -23,4 +23,10 @@ module Impl {
    * ```
    */
   class Item extends Generated::Item { }
+
+  private class ItemWithAttributeMacroExpansion extends Item {
+    ItemWithAttributeMacroExpansion() { this.hasAttributeMacroExpansion() }
+
+    override string toStringImpl() { result = "(item with attribute macro expansion)" }
+  }
 }
diff --git a/rust/ql/lib/codeql/rust/elements/internal/LocatableImpl.qll b/rust/ql/lib/codeql/rust/elements/internal/LocatableImpl.qll
index fcb5289e0493..78a9e7f38eca 100644
--- a/rust/ql/lib/codeql/rust/elements/internal/LocatableImpl.qll
+++ b/rust/ql/lib/codeql/rust/elements/internal/LocatableImpl.qll
@@ -5,6 +5,7 @@
  */
 
 import codeql.Locations
+private import codeql.rust.elements.internal.ElementImpl::Impl as ElementImpl
 private import codeql.rust.elements.internal.LocationImpl
 private import codeql.rust.elements.internal.generated.Locatable
 private import codeql.rust.elements.internal.generated.Synth
@@ -50,21 +51,12 @@ module Impl {
     locatable_locations(Synth::convertLocatableToRaw(l), result)
   }
 
-  private MacroCall getImmediatelyEnclosingMacroCall(AstNode n) {
-    result = n.getParentNode()
-    or
-    exists(AstNode mid |
-      result = getImmediatelyEnclosingMacroCall(mid) and
-      n.getParentNode() = mid and
-      not mid instanceof MacroCall
-    )
-  }
-
   /** Gets the non-synthesized location of `l`, if any. */
   LocationImpl::LocationDefault getLocationDefault(Locatable l) {
     result = LocationImpl::TLocationDefault(getDbLocation(l))
     or
     not exists(getDbLocation(l)) and
-    result = getLocationDefault(getImmediatelyEnclosingMacroCall(l))
+    result =
+      getLocationDefault(ElementImpl::MacroExpansion::getImmediatelyEnclosingMacroInvocation(l))
   }
 }
diff --git a/rust/ql/lib/codeql/rust/elements/internal/MacroCallImpl.qll b/rust/ql/lib/codeql/rust/elements/internal/MacroCallImpl.qll
index 17cc47d803f8..8e048517f63c 100644
--- a/rust/ql/lib/codeql/rust/elements/internal/MacroCallImpl.qll
+++ b/rust/ql/lib/codeql/rust/elements/internal/MacroCallImpl.qll
@@ -14,17 +14,6 @@ module Impl {
   private import rust
   private import codeql.rust.internal.PathResolution
 
-  pragma[nomagic]
-  predicate isInMacroExpansion(AstNode root, AstNode n) {
-    n = root.(MacroCall).getMacroCallExpansion()
-    or
-    n = root.(Adt).getDeriveMacroExpansion(_)
-    or
-    n = root.(Item).getAttributeMacroExpansion()
-    or
-    isInMacroExpansion(root, n.getParentNode())
-  }
-
   // the following QLdoc is generated: if you need to edit it, do it in the schema file
   /**
    * A macro invocation.
@@ -35,16 +24,7 @@ module Impl {
    * ```
    */
   class MacroCall extends Generated::MacroCall {
-    override string toStringImpl() {
-      if this.hasPath() then result = this.getPath().toAbbreviatedString() + "!..." else result = ""
-    }
-
-    /** Gets an AST node whose location is inside the token tree belonging to this macro call. */
-    pragma[nomagic]
-    AstNode getATokenTreeNode() {
-      isInMacroExpansion(this, result) and
-      this.getTokenTree().getLocation().contains(result.getLocation())
-    }
+    override string toStringImpl() { result = this.getPath().toAbbreviatedString() + "!..." }
 
     /**
      * Gets the macro definition that this macro call resolves to.
diff --git a/rust/ql/lib/codeql/rust/elements/internal/generated/ParentChild.qll b/rust/ql/lib/codeql/rust/elements/internal/generated/ParentChild.qll
index 7b8d4d4e4627..233c29e01738 100644
--- a/rust/ql/lib/codeql/rust/elements/internal/generated/ParentChild.qll
+++ b/rust/ql/lib/codeql/rust/elements/internal/generated/ParentChild.qll
@@ -74,7 +74,7 @@ private module Impl {
   private Element getImmediateChildOfArgList(ArgList e, int index, string partialPredicateCall) {
     exists(int n, int nArg |
       n = 0 and
-      nArg = n + 1 + max(int i | i = -1 or exists(e.getArg(i)) | i) and
+      nArg = n + e.getNumberOfArgs() and
       (
         none()
         or
@@ -126,8 +126,8 @@ private module Impl {
   ) {
     exists(int n, int nAssocItem, int nAttr |
       n = 0 and
-      nAssocItem = n + 1 + max(int i | i = -1 or exists(e.getAssocItem(i)) | i) and
-      nAttr = nAssocItem + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAssocItem = n + e.getNumberOfAssocItems() and
+      nAttr = nAssocItem + e.getNumberOfAttrs() and
       (
         none()
         or
@@ -157,8 +157,8 @@ private module Impl {
   ) {
     exists(int n, int nAttr, int nExternItem |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
-      nExternItem = nAttr + 1 + max(int i | i = -1 or exists(e.getExternItem(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
+      nExternItem = nAttr + e.getNumberOfExternItems() and
       (
         none()
         or
@@ -207,7 +207,7 @@ private module Impl {
   ) {
     exists(int n, int nGenericArg |
       n = 0 and
-      nGenericArg = n + 1 + max(int i | i = -1 or exists(e.getGenericArg(i)) | i) and
+      nGenericArg = n + e.getNumberOfGenericArgs() and
       (
         none()
         or
@@ -222,7 +222,7 @@ private module Impl {
   ) {
     exists(int n, int nGenericParam |
       n = 0 and
-      nGenericParam = n + 1 + max(int i | i = -1 or exists(e.getGenericParam(i)) | i) and
+      nGenericParam = n + e.getNumberOfGenericParams() and
       (
         none()
         or
@@ -235,8 +235,8 @@ private module Impl {
   private Element getImmediateChildOfItemList(ItemList e, int index, string partialPredicateCall) {
     exists(int n, int nAttr, int nItem |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
-      nItem = nAttr + 1 + max(int i | i = -1 or exists(e.getItem(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
+      nItem = nAttr + e.getNumberOfItems() and
       (
         none()
         or
@@ -276,7 +276,7 @@ private module Impl {
   private Element getImmediateChildOfMacroItems(MacroItems e, int index, string partialPredicateCall) {
     exists(int n, int nItem |
       n = 0 and
-      nItem = n + 1 + max(int i | i = -1 or exists(e.getItem(i)) | i) and
+      nItem = n + e.getNumberOfItems() and
       (
         none()
         or
@@ -289,7 +289,7 @@ private module Impl {
   private Element getImmediateChildOfMatchArm(MatchArm e, int index, string partialPredicateCall) {
     exists(int n, int nAttr, int nExpr, int nGuard, int nPat |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       nExpr = nAttr + 1 and
       nGuard = nExpr + 1 and
       nPat = nGuard + 1 and
@@ -313,8 +313,8 @@ private module Impl {
   ) {
     exists(int n, int nArm, int nAttr |
       n = 0 and
-      nArm = n + 1 + max(int i | i = -1 or exists(e.getArm(i)) | i) and
-      nAttr = nArm + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nArm = n + e.getNumberOfArms() and
+      nAttr = nArm + e.getNumberOfAttrs() and
       (
         none()
         or
@@ -362,7 +362,7 @@ private module Impl {
   private Element getImmediateChildOfParamList(ParamList e, int index, string partialPredicateCall) {
     exists(int n, int nParam, int nSelfParam |
       n = 0 and
-      nParam = n + 1 + max(int i | i = -1 or exists(e.getParam(i)) | i) and
+      nParam = n + e.getNumberOfParams() and
       nSelfParam = nParam + 1 and
       (
         none()
@@ -380,7 +380,7 @@ private module Impl {
   ) {
     exists(int n, int nTypeArg |
       n = 0 and
-      nTypeArg = n + 1 + max(int i | i = -1 or exists(e.getTypeArg(i)) | i) and
+      nTypeArg = n + e.getNumberOfTypeArgs() and
       (
         none()
         or
@@ -487,8 +487,8 @@ private module Impl {
   private Element getImmediateChildOfSourceFile(SourceFile e, int index, string partialPredicateCall) {
     exists(int n, int nAttr, int nItem |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
-      nItem = nAttr + 1 + max(int i | i = -1 or exists(e.getItem(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
+      nItem = nAttr + e.getNumberOfItems() and
       (
         none()
         or
@@ -504,8 +504,8 @@ private module Impl {
   private Element getImmediateChildOfStmtList(StmtList e, int index, string partialPredicateCall) {
     exists(int n, int nAttr, int nStatement, int nTailExpr |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
-      nStatement = nAttr + 1 + max(int i | i = -1 or exists(e.getStatement(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
+      nStatement = nAttr + e.getNumberOfStatements() and
       nTailExpr = nStatement + 1 and
       (
         none()
@@ -526,7 +526,7 @@ private module Impl {
   ) {
     exists(int n, int nAttr, int nExpr, int nIdentifier |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       nExpr = nAttr + 1 and
       nIdentifier = nExpr + 1 and
       (
@@ -547,8 +547,8 @@ private module Impl {
   ) {
     exists(int n, int nAttr, int nField, int nSpread |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
-      nField = nAttr + 1 + max(int i | i = -1 or exists(e.getField(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
+      nField = nAttr + e.getNumberOfFields() and
       nSpread = nField + 1 and
       (
         none()
@@ -569,7 +569,7 @@ private module Impl {
   ) {
     exists(int n, int nAttr, int nDefault, int nName, int nTypeRepr, int nVisibility |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       nDefault = nAttr + 1 and
       nName = nDefault + 1 and
       nTypeRepr = nName + 1 and
@@ -596,7 +596,7 @@ private module Impl {
   ) {
     exists(int n, int nAttr, int nIdentifier, int nPat |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       nIdentifier = nAttr + 1 and
       nPat = nIdentifier + 1 and
       (
@@ -617,7 +617,7 @@ private module Impl {
   ) {
     exists(int n, int nField, int nRestPat |
       n = 0 and
-      nField = n + 1 + max(int i | i = -1 or exists(e.getField(i)) | i) and
+      nField = n + e.getNumberOfFields() and
       nRestPat = nField + 1 and
       (
         none()
@@ -637,7 +637,7 @@ private module Impl {
   private Element getImmediateChildOfTupleField(TupleField e, int index, string partialPredicateCall) {
     exists(int n, int nAttr, int nTypeRepr, int nVisibility |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       nTypeRepr = nAttr + 1 and
       nVisibility = nTypeRepr + 1 and
       (
@@ -681,7 +681,7 @@ private module Impl {
   ) {
     exists(int n, int nBound |
       n = 0 and
-      nBound = n + 1 + max(int i | i = -1 or exists(e.getBound(i)) | i) and
+      nBound = n + e.getNumberOfBounds() and
       (
         none()
         or
@@ -696,7 +696,7 @@ private module Impl {
   ) {
     exists(int n, int nUseBoundGenericArg |
       n = 0 and
-      nUseBoundGenericArg = n + 1 + max(int i | i = -1 or exists(e.getUseBoundGenericArg(i)) | i) and
+      nUseBoundGenericArg = n + e.getNumberOfUseBoundGenericArgs() and
       (
         none()
         or
@@ -729,7 +729,7 @@ private module Impl {
   ) {
     exists(int n, int nUseTree |
       n = 0 and
-      nUseTree = n + 1 + max(int i | i = -1 or exists(e.getUseTree(i)) | i) and
+      nUseTree = n + e.getNumberOfUseTrees() and
       (
         none()
         or
@@ -744,7 +744,7 @@ private module Impl {
   ) {
     exists(int n, int nVariant |
       n = 0 and
-      nVariant = n + 1 + max(int i | i = -1 or exists(e.getVariant(i)) | i) and
+      nVariant = n + e.getNumberOfVariants() and
       (
         none()
         or
@@ -771,7 +771,7 @@ private module Impl {
   ) {
     exists(int n, int nPredicate |
       n = 0 and
-      nPredicate = n + 1 + max(int i | i = -1 or exists(e.getPredicate(i)) | i) and
+      nPredicate = n + e.getNumberOfPredicates() and
       (
         none()
         or
@@ -809,8 +809,8 @@ private module Impl {
   ) {
     exists(int n, int nAttr, int nExpr |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
-      nExpr = nAttr + 1 + max(int i | i = -1 or exists(e.getExpr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
+      nExpr = nAttr + e.getNumberOfExprs() and
       (
         none()
         or
@@ -894,7 +894,7 @@ private module Impl {
   ) {
     exists(int n, int nAsmOption |
       n = 0 and
-      nAsmOption = n + 1 + max(int i | i = -1 or exists(e.getAsmOption(i)) | i) and
+      nAsmOption = n + e.getNumberOfAsmOptions() and
       (
         none()
         or
@@ -991,7 +991,7 @@ private module Impl {
   private Element getImmediateChildOfAwaitExpr(AwaitExpr e, int index, string partialPredicateCall) {
     exists(int n, int nAttr, int nExpr |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       nExpr = nAttr + 1 and
       (
         none()
@@ -1007,7 +1007,7 @@ private module Impl {
   private Element getImmediateChildOfBecomeExpr(BecomeExpr e, int index, string partialPredicateCall) {
     exists(int n, int nAttr, int nExpr |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       nExpr = nAttr + 1 and
       (
         none()
@@ -1023,7 +1023,7 @@ private module Impl {
   private Element getImmediateChildOfBinaryExpr(BinaryExpr e, int index, string partialPredicateCall) {
     exists(int n, int nAttr, int nLhs, int nRhs |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       nLhs = nAttr + 1 and
       nRhs = nLhs + 1 and
       (
@@ -1054,7 +1054,7 @@ private module Impl {
   private Element getImmediateChildOfBreakExpr(BreakExpr e, int index, string partialPredicateCall) {
     exists(int n, int nAttr, int nExpr, int nLifetime |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       nExpr = nAttr + 1 and
       nLifetime = nExpr + 1 and
       (
@@ -1073,7 +1073,7 @@ private module Impl {
   private Element getImmediateChildOfCastExpr(CastExpr e, int index, string partialPredicateCall) {
     exists(int n, int nAttr, int nExpr, int nTypeRepr |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       nExpr = nAttr + 1 and
       nTypeRepr = nExpr + 1 and
       (
@@ -1095,7 +1095,7 @@ private module Impl {
     exists(int n, int nParamList, int nAttr, int nClosureBody, int nForBinder, int nRetType |
       n = 0 and
       nParamList = n + 1 and
-      nAttr = nParamList + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = nParamList + e.getNumberOfAttrs() and
       nClosureBody = nAttr + 1 and
       nForBinder = nClosureBody + 1 and
       nRetType = nForBinder + 1 and
@@ -1149,7 +1149,7 @@ private module Impl {
   private Element getImmediateChildOfConstParam(ConstParam e, int index, string partialPredicateCall) {
     exists(int n, int nAttr, int nDefaultVal, int nName, int nTypeRepr |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       nDefaultVal = nAttr + 1 and
       nName = nDefaultVal + 1 and
       nTypeRepr = nName + 1 and
@@ -1173,7 +1173,7 @@ private module Impl {
   ) {
     exists(int n, int nAttr, int nLifetime |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       nLifetime = nAttr + 1 and
       (
         none()
@@ -1215,7 +1215,7 @@ private module Impl {
   private Element getImmediateChildOfFieldExpr(FieldExpr e, int index, string partialPredicateCall) {
     exists(int n, int nAttr, int nContainer, int nIdentifier |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       nContainer = nAttr + 1 and
       nIdentifier = nContainer + 1 and
       (
@@ -1273,10 +1273,10 @@ private module Impl {
   ) {
     exists(int n, int nArg, int nAttr, int nTemplate, int nFormat |
       n = 0 and
-      nArg = n + 1 + max(int i | i = -1 or exists(e.getArg(i)) | i) and
-      nAttr = nArg + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nArg = n + e.getNumberOfArgs() and
+      nAttr = nArg + e.getNumberOfAttrs() and
       nTemplate = nAttr + 1 and
-      nFormat = nTemplate + 1 + max(int i | i = -1 or exists(e.getFormat(i)) | i) and
+      nFormat = nTemplate + e.getNumberOfFormats() and
       (
         none()
         or
@@ -1297,7 +1297,7 @@ private module Impl {
   private Element getImmediateChildOfIdentPat(IdentPat e, int index, string partialPredicateCall) {
     exists(int n, int nAttr, int nName, int nPat |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       nName = nAttr + 1 and
       nPat = nName + 1 and
       (
@@ -1316,7 +1316,7 @@ private module Impl {
   private Element getImmediateChildOfIfExpr(IfExpr e, int index, string partialPredicateCall) {
     exists(int n, int nAttr, int nCondition, int nElse, int nThen |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       nCondition = nAttr + 1 and
       nElse = nCondition + 1 and
       nThen = nElse + 1 and
@@ -1352,7 +1352,7 @@ private module Impl {
   private Element getImmediateChildOfIndexExpr(IndexExpr e, int index, string partialPredicateCall) {
     exists(int n, int nAttr, int nBase, int nIndex |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       nBase = nAttr + 1 and
       nIndex = nBase + 1 and
       (
@@ -1377,7 +1377,7 @@ private module Impl {
   private Element getImmediateChildOfLetExpr(LetExpr e, int index, string partialPredicateCall) {
     exists(int n, int nAttr, int nScrutinee, int nPat |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       nScrutinee = nAttr + 1 and
       nPat = nScrutinee + 1 and
       (
@@ -1396,7 +1396,7 @@ private module Impl {
   private Element getImmediateChildOfLetStmt(LetStmt e, int index, string partialPredicateCall) {
     exists(int n, int nAttr, int nInitializer, int nLetElse, int nPat, int nTypeRepr |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       nInitializer = nAttr + 1 and
       nLetElse = nInitializer + 1 and
       nPat = nLetElse + 1 and
@@ -1441,7 +1441,7 @@ private module Impl {
   ) {
     exists(int n, int nAttr, int nLifetime, int nTypeBoundList |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       nLifetime = nAttr + 1 and
       nTypeBoundList = nLifetime + 1 and
       (
@@ -1464,7 +1464,7 @@ private module Impl {
   ) {
     exists(int n, int nAttr |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       (
         none()
         or
@@ -1491,7 +1491,7 @@ private module Impl {
   ) {
     exists(int n, int nStatement, int nTailExpr |
       n = 0 and
-      nStatement = n + 1 + max(int i | i = -1 or exists(e.getStatement(i)) | i) and
+      nStatement = n + e.getNumberOfStatements() and
       nTailExpr = nStatement + 1 and
       (
         none()
@@ -1545,7 +1545,7 @@ private module Impl {
   private Element getImmediateChildOfMatchExpr(MatchExpr e, int index, string partialPredicateCall) {
     exists(int n, int nAttr, int nScrutinee, int nMatchArmList |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       nScrutinee = nAttr + 1 and
       nMatchArmList = nScrutinee + 1 and
       (
@@ -1578,8 +1578,8 @@ private module Impl {
   ) {
     exists(int n, int nAttr, int nField, int nTypeRepr |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
-      nField = nAttr + 1 + max(int i | i = -1 or exists(e.getField(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
+      nField = nAttr + e.getNumberOfFields() and
       nTypeRepr = nField + 1 and
       (
         none()
@@ -1598,7 +1598,7 @@ private module Impl {
   private Element getImmediateChildOfOrPat(OrPat e, int index, string partialPredicateCall) {
     exists(int n, int nPat |
       n = 0 and
-      nPat = n + 1 + max(int i | i = -1 or exists(e.getPat(i)) | i) and
+      nPat = n + e.getNumberOfPats() and
       (
         none()
         or
@@ -1611,7 +1611,7 @@ private module Impl {
   private Element getImmediateChildOfParam(Param e, int index, string partialPredicateCall) {
     exists(int n, int nAttr, int nTypeRepr, int nPat |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       nTypeRepr = nAttr + 1 and
       nPat = nTypeRepr + 1 and
       (
@@ -1630,7 +1630,7 @@ private module Impl {
   private Element getImmediateChildOfParenExpr(ParenExpr e, int index, string partialPredicateCall) {
     exists(int n, int nAttr, int nExpr |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       nExpr = nAttr + 1 and
       (
         none()
@@ -1698,7 +1698,7 @@ private module Impl {
   private Element getImmediateChildOfPrefixExpr(PrefixExpr e, int index, string partialPredicateCall) {
     exists(int n, int nAttr, int nExpr |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       nExpr = nAttr + 1 and
       (
         none()
@@ -1728,7 +1728,7 @@ private module Impl {
   private Element getImmediateChildOfRangeExpr(RangeExpr e, int index, string partialPredicateCall) {
     exists(int n, int nAttr, int nEnd, int nStart |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       nEnd = nAttr + 1 and
       nStart = nEnd + 1 and
       (
@@ -1762,7 +1762,7 @@ private module Impl {
   private Element getImmediateChildOfRefExpr(RefExpr e, int index, string partialPredicateCall) {
     exists(int n, int nAttr, int nExpr |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       nExpr = nAttr + 1 and
       (
         none()
@@ -1807,7 +1807,7 @@ private module Impl {
   private Element getImmediateChildOfRestPat(RestPat e, int index, string partialPredicateCall) {
     exists(int n, int nAttr |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       (
         none()
         or
@@ -1820,7 +1820,7 @@ private module Impl {
   private Element getImmediateChildOfReturnExpr(ReturnExpr e, int index, string partialPredicateCall) {
     exists(int n, int nAttr, int nExpr |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       nExpr = nAttr + 1 and
       (
         none()
@@ -1836,7 +1836,7 @@ private module Impl {
   private Element getImmediateChildOfSelfParam(SelfParam e, int index, string partialPredicateCall) {
     exists(int n, int nAttr, int nTypeRepr, int nLifetime, int nName |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       nTypeRepr = nAttr + 1 and
       nLifetime = nTypeRepr + 1 and
       nName = nLifetime + 1 and
@@ -1858,7 +1858,7 @@ private module Impl {
   private Element getImmediateChildOfSlicePat(SlicePat e, int index, string partialPredicateCall) {
     exists(int n, int nPat |
       n = 0 and
-      nPat = n + 1 + max(int i | i = -1 or exists(e.getPat(i)) | i) and
+      nPat = n + e.getNumberOfPats() and
       (
         none()
         or
@@ -1904,7 +1904,7 @@ private module Impl {
   ) {
     exists(int n, int nField |
       n = 0 and
-      nField = n + 1 + max(int i | i = -1 or exists(e.getField(i)) | i) and
+      nField = n + e.getNumberOfFields() and
       (
         none()
         or
@@ -1934,7 +1934,7 @@ private module Impl {
   private Element getImmediateChildOfTryExpr(TryExpr e, int index, string partialPredicateCall) {
     exists(int n, int nAttr, int nExpr |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       nExpr = nAttr + 1 and
       (
         none()
@@ -1950,8 +1950,8 @@ private module Impl {
   private Element getImmediateChildOfTupleExpr(TupleExpr e, int index, string partialPredicateCall) {
     exists(int n, int nAttr, int nField |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
-      nField = nAttr + 1 + max(int i | i = -1 or exists(e.getField(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
+      nField = nAttr + e.getNumberOfFields() and
       (
         none()
         or
@@ -1969,7 +1969,7 @@ private module Impl {
   ) {
     exists(int n, int nField |
       n = 0 and
-      nField = n + 1 + max(int i | i = -1 or exists(e.getField(i)) | i) and
+      nField = n + e.getNumberOfFields() and
       (
         none()
         or
@@ -1982,7 +1982,7 @@ private module Impl {
   private Element getImmediateChildOfTuplePat(TuplePat e, int index, string partialPredicateCall) {
     exists(int n, int nField |
       n = 0 and
-      nField = n + 1 + max(int i | i = -1 or exists(e.getField(i)) | i) and
+      nField = n + e.getNumberOfFields() and
       (
         none()
         or
@@ -1998,7 +1998,7 @@ private module Impl {
     exists(int n, int nPath, int nField |
       n = 0 and
       nPath = n + 1 and
-      nField = nPath + 1 + max(int i | i = -1 or exists(e.getField(i)) | i) and
+      nField = nPath + e.getNumberOfFields() and
       (
         none()
         or
@@ -2015,7 +2015,7 @@ private module Impl {
   ) {
     exists(int n, int nField |
       n = 0 and
-      nField = n + 1 + max(int i | i = -1 or exists(e.getField(i)) | i) and
+      nField = n + e.getNumberOfFields() and
       (
         none()
         or
@@ -2040,7 +2040,7 @@ private module Impl {
   private Element getImmediateChildOfTypeParam(TypeParam e, int index, string partialPredicateCall) {
     exists(int n, int nAttr, int nDefaultType, int nName, int nTypeBoundList |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       nDefaultType = nAttr + 1 and
       nName = nDefaultType + 1 and
       nTypeBoundList = nName + 1 and
@@ -2064,7 +2064,7 @@ private module Impl {
   ) {
     exists(int n, int nAttr |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       (
         none()
         or
@@ -2077,7 +2077,7 @@ private module Impl {
   private Element getImmediateChildOfVariant(Variant e, int index, string partialPredicateCall) {
     exists(int n, int nAttr, int nDiscriminant, int nFieldList, int nName, int nVisibility |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       nDiscriminant = nAttr + 1 and
       nFieldList = nDiscriminant + 1 and
       nName = nFieldList + 1 and
@@ -2108,7 +2108,7 @@ private module Impl {
   private Element getImmediateChildOfYeetExpr(YeetExpr e, int index, string partialPredicateCall) {
     exists(int n, int nAttr, int nExpr |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       nExpr = nAttr + 1 and
       (
         none()
@@ -2124,7 +2124,7 @@ private module Impl {
   private Element getImmediateChildOfYieldExpr(YieldExpr e, int index, string partialPredicateCall) {
     exists(int n, int nAttr, int nExpr |
       n = 0 and
-      nAttr = n + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = n + e.getNumberOfAttrs() and
       nExpr = nAttr + 1 and
       (
         none()
@@ -2142,8 +2142,8 @@ private module Impl {
   ) {
     exists(int n, int nExpr, int nAttr |
       n = 0 and
-      nExpr = n + 1 + max(int i | i = -1 or exists(e.getExpr(i)) | i) and
-      nAttr = nExpr + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nExpr = n + e.getNumberOfExprs() and
+      nAttr = nExpr + e.getNumberOfAttrs() and
       (
         none()
         or
@@ -2161,8 +2161,8 @@ private module Impl {
   ) {
     exists(int n, int nExpr, int nAttr, int nRepeatOperand, int nRepeatLength |
       n = 0 and
-      nExpr = n + 1 + max(int i | i = -1 or exists(e.getExpr(i)) | i) and
-      nAttr = nExpr + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nExpr = n + e.getNumberOfExprs() and
+      nAttr = nExpr + e.getNumberOfAttrs() and
       nRepeatOperand = nAttr + 1 and
       nRepeatLength = nRepeatOperand + 1 and
       (
@@ -2187,9 +2187,9 @@ private module Impl {
     exists(int n, int nAttributeMacroExpansion, int nAsmPiece, int nAttr, int nTemplate |
       n = 0 and
       nAttributeMacroExpansion = n + 1 and
-      nAsmPiece = nAttributeMacroExpansion + 1 + max(int i | i = -1 or exists(e.getAsmPiece(i)) | i) and
-      nAttr = nAsmPiece + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
-      nTemplate = nAttr + 1 + max(int i | i = -1 or exists(e.getTemplate(i)) | i) and
+      nAsmPiece = nAttributeMacroExpansion + e.getNumberOfAsmPieces() and
+      nAttr = nAsmPiece + e.getNumberOfAttrs() and
+      nTemplate = nAttr + e.getNumberOfTemplates() and
       (
         none()
         or
@@ -2213,7 +2213,7 @@ private module Impl {
     exists(int n, int nLabel, int nAttr, int nStmtList |
       n = 0 and
       nLabel = n + 1 and
-      nAttr = nLabel + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = nLabel + e.getNumberOfAttrs() and
       nStmtList = nAttr + 1 and
       (
         none()
@@ -2232,7 +2232,7 @@ private module Impl {
     exists(int n, int nArgList, int nAttr, int nFunction |
       n = 0 and
       nArgList = n + 1 and
-      nAttr = nArgList + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = nArgList + e.getNumberOfAttrs() and
       nFunction = nAttr + 1 and
       (
         none()
@@ -2254,7 +2254,7 @@ private module Impl {
       n = 0 and
       nAttributeMacroExpansion = n + 1 and
       nAbi = nAttributeMacroExpansion + 1 and
-      nAttr = nAbi + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = nAbi + e.getNumberOfAttrs() and
       nExternItemList = nAttr + 1 and
       (
         none()
@@ -2283,7 +2283,7 @@ private module Impl {
     |
       n = 0 and
       nAttributeMacroExpansion = n + 1 and
-      nAttr = nAttributeMacroExpansion + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = nAttributeMacroExpansion + e.getNumberOfAttrs() and
       nIdentifier = nAttr + 1 and
       nRename = nIdentifier + 1 and
       nVisibility = nRename + 1 and
@@ -2320,7 +2320,7 @@ private module Impl {
       n = 0 and
       nAttributeMacroExpansion = n + 1 and
       nAssocItemList = nAttributeMacroExpansion + 1 and
-      nAttr = nAssocItemList + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = nAssocItemList + e.getNumberOfAttrs() and
       nGenericParamList = nAttr + 1 and
       nSelfTy = nGenericParamList + 1 and
       nTrait = nSelfTy + 1 and
@@ -2365,7 +2365,7 @@ private module Impl {
       n = 0 and
       nAttributeMacroExpansion = n + 1 and
       nArgs = nAttributeMacroExpansion + 1 and
-      nAttr = nArgs + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = nArgs + e.getNumberOfAttrs() and
       nBody = nAttr + 1 and
       nName = nBody + 1 and
       nVisibility = nName + 1 and
@@ -2398,7 +2398,7 @@ private module Impl {
     |
       n = 0 and
       nAttributeMacroExpansion = n + 1 and
-      nAttr = nAttributeMacroExpansion + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = nAttributeMacroExpansion + e.getNumberOfAttrs() and
       nName = nAttr + 1 and
       nTokenTree = nName + 1 and
       nVisibility = nTokenTree + 1 and
@@ -2427,7 +2427,7 @@ private module Impl {
     exists(int n, int nArgList, int nAttr, int nGenericArgList, int nIdentifier, int nReceiver |
       n = 0 and
       nArgList = n + 1 and
-      nAttr = nArgList + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = nArgList + e.getNumberOfAttrs() and
       nGenericArgList = nAttr + 1 and
       nIdentifier = nGenericArgList + 1 and
       nReceiver = nIdentifier + 1 and
@@ -2458,7 +2458,7 @@ private module Impl {
     |
       n = 0 and
       nAttributeMacroExpansion = n + 1 and
-      nAttr = nAttributeMacroExpansion + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = nAttributeMacroExpansion + e.getNumberOfAttrs() and
       nItemList = nAttr + 1 and
       nName = nItemList + 1 and
       nVisibility = nName + 1 and
@@ -2485,7 +2485,7 @@ private module Impl {
     exists(int n, int nPath, int nAttr |
       n = 0 and
       nPath = n + 1 and
-      nAttr = nPath + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = nPath + e.getNumberOfAttrs() and
       (
         none()
         or
@@ -2505,7 +2505,7 @@ private module Impl {
       n = 0 and
       nAttributeMacroExpansion = n + 1 and
       nAssocItemList = nAttributeMacroExpansion + 1 and
-      nAttr = nAssocItemList + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = nAssocItemList + e.getNumberOfAttrs() and
       nGenericParamList = nAttr + 1 and
       nName = nGenericParamList + 1 and
       nTypeBoundList = nName + 1 and
@@ -2551,7 +2551,7 @@ private module Impl {
     |
       n = 0 and
       nAttributeMacroExpansion = n + 1 and
-      nAttr = nAttributeMacroExpansion + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = nAttributeMacroExpansion + e.getNumberOfAttrs() and
       nGenericParamList = nAttr + 1 and
       nName = nGenericParamList + 1 and
       nTypeBoundList = nName + 1 and
@@ -2590,7 +2590,7 @@ private module Impl {
     exists(int n, int nAttributeMacroExpansion, int nAttr, int nUseTree, int nVisibility |
       n = 0 and
       nAttributeMacroExpansion = n + 1 and
-      nAttr = nAttributeMacroExpansion + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = nAttributeMacroExpansion + e.getNumberOfAttrs() and
       nUseTree = nAttr + 1 and
       nVisibility = nUseTree + 1 and
       (
@@ -2617,7 +2617,7 @@ private module Impl {
     |
       n = 0 and
       nAttributeMacroExpansion = n + 1 and
-      nAttr = nAttributeMacroExpansion + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = nAttributeMacroExpansion + e.getNumberOfAttrs() and
       nBody = nAttr + 1 and
       nGenericParamList = nBody + 1 and
       nName = nGenericParamList + 1 and
@@ -2660,10 +2660,8 @@ private module Impl {
     |
       n = 0 and
       nAttributeMacroExpansion = n + 1 and
-      nDeriveMacroExpansion =
-        nAttributeMacroExpansion + 1 +
-          max(int i | i = -1 or exists(e.getDeriveMacroExpansion(i)) | i) and
-      nAttr = nDeriveMacroExpansion + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nDeriveMacroExpansion = nAttributeMacroExpansion + e.getNumberOfDeriveMacroExpansions() and
+      nAttr = nDeriveMacroExpansion + e.getNumberOfAttrs() and
       nGenericParamList = nAttr + 1 and
       nName = nGenericParamList + 1 and
       nVariantList = nName + 1 and
@@ -2707,7 +2705,7 @@ private module Impl {
       n = 0 and
       nLabel = n + 1 and
       nLoopBody = nLabel + 1 and
-      nAttr = nLoopBody + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = nLoopBody + e.getNumberOfAttrs() and
       nIterable = nAttr + 1 and
       nPat = nIterable + 1 and
       (
@@ -2735,7 +2733,7 @@ private module Impl {
       n = 0 and
       nAttributeMacroExpansion = n + 1 and
       nParamList = nAttributeMacroExpansion + 1 and
-      nAttr = nParamList + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = nParamList + e.getNumberOfAttrs() and
       nAbi = nAttr + 1 and
       nFunctionBody = nAbi + 1 and
       nGenericParamList = nFunctionBody + 1 and
@@ -2783,7 +2781,7 @@ private module Impl {
       n = 0 and
       nLabel = n + 1 and
       nLoopBody = nLabel + 1 and
-      nAttr = nLoopBody + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = nLoopBody + e.getNumberOfAttrs() and
       (
         none()
         or
@@ -2804,7 +2802,7 @@ private module Impl {
     |
       n = 0 and
       nAttributeMacroExpansion = n + 1 and
-      nAttr = nAttributeMacroExpansion + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = nAttributeMacroExpansion + e.getNumberOfAttrs() and
       nPath = nAttr + 1 and
       nTokenTree = nPath + 1 and
       nMacroCallExpansion = nTokenTree + 1 and
@@ -2836,7 +2834,7 @@ private module Impl {
     |
       n = 0 and
       nAttributeMacroExpansion = n + 1 and
-      nAttr = nAttributeMacroExpansion + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = nAttributeMacroExpansion + e.getNumberOfAttrs() and
       nBody = nAttr + 1 and
       nName = nBody + 1 and
       nTypeRepr = nName + 1 and
@@ -2869,10 +2867,8 @@ private module Impl {
     |
       n = 0 and
       nAttributeMacroExpansion = n + 1 and
-      nDeriveMacroExpansion =
-        nAttributeMacroExpansion + 1 +
-          max(int i | i = -1 or exists(e.getDeriveMacroExpansion(i)) | i) and
-      nAttr = nDeriveMacroExpansion + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nDeriveMacroExpansion = nAttributeMacroExpansion + e.getNumberOfDeriveMacroExpansions() and
+      nAttr = nDeriveMacroExpansion + e.getNumberOfAttrs() and
       nFieldList = nAttr + 1 and
       nGenericParamList = nFieldList + 1 and
       nName = nGenericParamList + 1 and
@@ -2916,7 +2912,7 @@ private module Impl {
     |
       n = 0 and
       nAttributeMacroExpansion = n + 1 and
-      nAttr = nAttributeMacroExpansion + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = nAttributeMacroExpansion + e.getNumberOfAttrs() and
       nGenericParamList = nAttr + 1 and
       nName = nGenericParamList + 1 and
       nTypeRepr = nName + 1 and
@@ -2963,10 +2959,8 @@ private module Impl {
     |
       n = 0 and
       nAttributeMacroExpansion = n + 1 and
-      nDeriveMacroExpansion =
-        nAttributeMacroExpansion + 1 +
-          max(int i | i = -1 or exists(e.getDeriveMacroExpansion(i)) | i) and
-      nAttr = nDeriveMacroExpansion + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nDeriveMacroExpansion = nAttributeMacroExpansion + e.getNumberOfDeriveMacroExpansions() and
+      nAttr = nDeriveMacroExpansion + e.getNumberOfAttrs() and
       nGenericParamList = nAttr + 1 and
       nName = nGenericParamList + 1 and
       nStructFieldList = nName + 1 and
@@ -3012,7 +3006,7 @@ private module Impl {
       n = 0 and
       nLabel = n + 1 and
       nLoopBody = nLabel + 1 and
-      nAttr = nLoopBody + 1 + max(int i | i = -1 or exists(e.getAttr(i)) | i) and
+      nAttr = nLoopBody + e.getNumberOfAttrs() and
       nCondition = nAttr + 1 and
       (
         none()
diff --git a/rust/ql/lib/codeql/rust/elements/internal/generated/Raw.qll b/rust/ql/lib/codeql/rust/elements/internal/generated/Raw.qll
index 21782ed7db43..aff81e9b9ab8 100644
--- a/rust/ql/lib/codeql/rust/elements/internal/generated/Raw.qll
+++ b/rust/ql/lib/codeql/rust/elements/internal/generated/Raw.qll
@@ -34,6 +34,8 @@ module Raw {
     int getDurationMs() { extractor_steps(this, _, result) }
   }
 
+  private Element getImmediateChildOfExtractorStep(ExtractorStep e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -56,6 +58,8 @@ module Raw {
     Crate getCrate() { named_crates(this, _, result) }
   }
 
+  private Element getImmediateChildOfNamedCrate(NamedCrate e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    * The base class marking everything that was not properly extracted for some reason, such as:
@@ -91,12 +95,27 @@ module Raw {
      */
     string getCfgOption(int index) { crate_cfg_options(this, index, result) }
 
+    /**
+     * Gets the number of cfg options of this crate.
+     */
+    int getNumberOfCfgOptions() { result = count(int i | crate_cfg_options(this, i, _)) }
+
     /**
      * Gets the `index`th named dependency of this crate (0-based).
      */
     NamedCrate getNamedDependency(int index) { crate_named_dependencies(this, index, result) }
+
+    /**
+     * Gets the number of named dependencies of this crate.
+     * INTERNAL: Do not use.
+     */
+    int getNumberOfNamedDependencies() {
+      result = count(int i | crate_named_dependencies(this, i, _))
+    }
   }
 
+  private Element getImmediateChildOfCrate(Crate e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    * The base class marking errors during parsing or resolution.
@@ -105,6 +124,8 @@ module Raw {
     override string toString() { result = "Missing" }
   }
 
+  private Element getImmediateChildOfMissing(Missing e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    * The base class for unimplemented nodes. This is used to mark nodes that are not yet extracted.
@@ -113,6 +134,8 @@ module Raw {
     override string toString() { result = "Unimplemented" }
   }
 
+  private Element getImmediateChildOfUnimplemented(Unimplemented e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    * An ABI specification for an extern function or block.
@@ -132,6 +155,8 @@ module Raw {
     string getAbiString() { abi_abi_strings(this, result) }
   }
 
+  private Element getImmediateChildOfAbi(Abi e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    * Something that can be addressed by a path.
@@ -157,6 +182,23 @@ module Raw {
      * Gets the `index`th argument of this argument list (0-based).
      */
     Expr getArg(int index) { arg_list_args(this, index, result) }
+
+    /**
+     * Gets the number of arguments of this argument list.
+     */
+    int getNumberOfArgs() { result = count(int i | arg_list_args(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfArgList(ArgList e, int index) {
+    exists(int n, int nArg |
+      n = 0 and
+      nArg = n + e.getNumberOfArgs() and
+      (
+        none()
+        or
+        result = e.getArg(index - n)
+      )
+    )
   }
 
   /**
@@ -174,6 +216,8 @@ module Raw {
     override string toString() { result = "AsmDirSpec" }
   }
 
+  private Element getImmediateChildOfAsmDirSpec(AsmDirSpec e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -204,6 +248,21 @@ module Raw {
     Expr getOutExpr() { asm_operand_expr_out_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfAsmOperandExpr(AsmOperandExpr e, int index) {
+    exists(int n, int nInExpr, int nOutExpr |
+      n = 0 and
+      nInExpr = n + 1 and
+      nOutExpr = nInExpr + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getInExpr()
+        or
+        index = nInExpr and result = e.getOutExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * An option in an inline assembly block.
@@ -224,6 +283,8 @@ module Raw {
     predicate isRaw() { asm_option_is_raw(this) }
   }
 
+  private Element getImmediateChildOfAsmOption(AsmOption e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -249,6 +310,18 @@ module Raw {
     NameRef getIdentifier() { asm_reg_spec_identifiers(this, result) }
   }
 
+  private Element getImmediateChildOfAsmRegSpec(AsmRegSpec e, int index) {
+    exists(int n, int nIdentifier |
+      n = 0 and
+      nIdentifier = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getIdentifier()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A list of `AssocItem` elements, as appearing in a `Trait` or `Impl`.
@@ -261,10 +334,35 @@ module Raw {
      */
     AssocItem getAssocItem(int index) { assoc_item_list_assoc_items(this, index, result) }
 
+    /**
+     * Gets the number of assoc items of this assoc item list.
+     */
+    int getNumberOfAssocItems() { result = count(int i | assoc_item_list_assoc_items(this, i, _)) }
+
     /**
      * Gets the `index`th attr of this assoc item list (0-based).
      */
     Attr getAttr(int index) { assoc_item_list_attrs(this, index, result) }
+
+    /**
+     * Gets the number of attrs of this assoc item list.
+     */
+    int getNumberOfAttrs() { result = count(int i | assoc_item_list_attrs(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfAssocItemList(AssocItemList e, int index) {
+    exists(int n, int nAssocItem, int nAttr |
+      n = 0 and
+      nAssocItem = n + e.getNumberOfAssocItems() and
+      nAttr = nAssocItem + e.getNumberOfAttrs() and
+      (
+        none()
+        or
+        result = e.getAssocItem(index - n)
+        or
+        result = e.getAttr(index - nAssocItem)
+      )
+    )
   }
 
   /**
@@ -287,6 +385,18 @@ module Raw {
     Meta getMeta() { attr_meta(this, result) }
   }
 
+  private Element getImmediateChildOfAttr(Attr e, int index) {
+    exists(int n, int nMeta |
+      n = 0 and
+      nMeta = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getMeta()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A callable. Either a `Function` or a `ClosureExpr`.
@@ -301,6 +411,11 @@ module Raw {
      * Gets the `index`th attr of this callable (0-based).
      */
     Attr getAttr(int index) { callable_attrs(this, index, result) }
+
+    /**
+     * Gets the number of attrs of this callable.
+     */
+    int getNumberOfAttrs() { result = count(int i | callable_attrs(this, i, _)) }
   }
 
   /**
@@ -329,10 +444,37 @@ module Raw {
      */
     Attr getAttr(int index) { extern_item_list_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this extern item list.
+     */
+    int getNumberOfAttrs() { result = count(int i | extern_item_list_attrs(this, i, _)) }
+
     /**
      * Gets the `index`th extern item of this extern item list (0-based).
      */
     ExternItem getExternItem(int index) { extern_item_list_extern_items(this, index, result) }
+
+    /**
+     * Gets the number of extern items of this extern item list.
+     */
+    int getNumberOfExternItems() {
+      result = count(int i | extern_item_list_extern_items(this, i, _))
+    }
+  }
+
+  private Element getImmediateChildOfExternItemList(ExternItemList e, int index) {
+    exists(int n, int nAttr, int nExternItem |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nExternItem = nAttr + e.getNumberOfExternItems() and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        result = e.getExternItem(index - nAttr)
+      )
+    )
   }
 
   /**
@@ -373,6 +515,18 @@ module Raw {
     GenericParamList getGenericParamList() { for_binder_generic_param_lists(this, result) }
   }
 
+  private Element getImmediateChildOfForBinder(ForBinder e, int index) {
+    exists(int n, int nGenericParamList |
+      n = 0 and
+      nGenericParamList = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getGenericParamList()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A FormatArgsArg. For example the `"world"` in:
@@ -394,6 +548,21 @@ module Raw {
     Name getName() { format_args_arg_names(this, result) }
   }
 
+  private Element getImmediateChildOfFormatArgsArg(FormatArgsArg e, int index) {
+    exists(int n, int nExpr, int nName |
+      n = 0 and
+      nExpr = n + 1 and
+      nName = nExpr + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getExpr()
+        or
+        index = nExpr and result = e.getName()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A generic argument in a generic argument list.
@@ -420,6 +589,25 @@ module Raw {
      * Gets the `index`th generic argument of this generic argument list (0-based).
      */
     GenericArg getGenericArg(int index) { generic_arg_list_generic_args(this, index, result) }
+
+    /**
+     * Gets the number of generic arguments of this generic argument list.
+     */
+    int getNumberOfGenericArgs() {
+      result = count(int i | generic_arg_list_generic_args(this, i, _))
+    }
+  }
+
+  private Element getImmediateChildOfGenericArgList(GenericArgList e, int index) {
+    exists(int n, int nGenericArg |
+      n = 0 and
+      nGenericArg = n + e.getNumberOfGenericArgs() and
+      (
+        none()
+        or
+        result = e.getGenericArg(index - n)
+      )
+    )
   }
 
   /**
@@ -453,6 +641,25 @@ module Raw {
     GenericParam getGenericParam(int index) {
       generic_param_list_generic_params(this, index, result)
     }
+
+    /**
+     * Gets the number of generic parameters of this generic parameter list.
+     */
+    int getNumberOfGenericParams() {
+      result = count(int i | generic_param_list_generic_params(this, i, _))
+    }
+  }
+
+  private Element getImmediateChildOfGenericParamList(GenericParamList e, int index) {
+    exists(int n, int nGenericParam |
+      n = 0 and
+      nGenericParam = n + e.getNumberOfGenericParams() and
+      (
+        none()
+        or
+        result = e.getGenericParam(index - n)
+      )
+    )
   }
 
   /**
@@ -475,10 +682,35 @@ module Raw {
      */
     Attr getAttr(int index) { item_list_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this item list.
+     */
+    int getNumberOfAttrs() { result = count(int i | item_list_attrs(this, i, _)) }
+
     /**
      * Gets the `index`th item of this item list (0-based).
      */
     Item getItem(int index) { item_list_items(this, index, result) }
+
+    /**
+     * Gets the number of items of this item list.
+     */
+    int getNumberOfItems() { result = count(int i | item_list_items(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfItemList(ItemList e, int index) {
+    exists(int n, int nAttr, int nItem |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nItem = nAttr + e.getNumberOfItems() and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        result = e.getItem(index - nAttr)
+      )
+    )
   }
 
   /**
@@ -500,6 +732,18 @@ module Raw {
     Lifetime getLifetime() { label_lifetimes(this, result) }
   }
 
+  private Element getImmediateChildOfLabel(Label e, int index) {
+    exists(int n, int nLifetime |
+      n = 0 and
+      nLifetime = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getLifetime()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * An else block in a let-else statement.
@@ -521,6 +765,18 @@ module Raw {
     BlockExpr getBlockExpr() { let_else_block_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfLetElse(LetElse e, int index) {
+    exists(int n, int nBlockExpr |
+      n = 0 and
+      nBlockExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getBlockExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A sequence of items generated by a macro. For example:
@@ -545,6 +801,23 @@ module Raw {
      * Gets the `index`th item of this macro items (0-based).
      */
     Item getItem(int index) { macro_items_items(this, index, result) }
+
+    /**
+     * Gets the number of items of this macro items.
+     */
+    int getNumberOfItems() { result = count(int i | macro_items_items(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfMacroItems(MacroItems e, int index) {
+    exists(int n, int nItem |
+      n = 0 and
+      nItem = n + e.getNumberOfItems() and
+      (
+        none()
+        or
+        result = e.getItem(index - n)
+      )
+    )
   }
 
   /**
@@ -571,6 +844,11 @@ module Raw {
      */
     Attr getAttr(int index) { match_arm_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this match arm.
+     */
+    int getNumberOfAttrs() { result = count(int i | match_arm_attrs(this, i, _)) }
+
     /**
      * Gets the expression of this match arm, if it exists.
      */
@@ -587,6 +865,27 @@ module Raw {
     Pat getPat() { match_arm_pats(this, result) }
   }
 
+  private Element getImmediateChildOfMatchArm(MatchArm e, int index) {
+    exists(int n, int nAttr, int nExpr, int nGuard, int nPat |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nExpr = nAttr + 1 and
+      nGuard = nExpr + 1 and
+      nPat = nGuard + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        index = nAttr and result = e.getExpr()
+        or
+        index = nExpr and result = e.getGuard()
+        or
+        index = nGuard and result = e.getPat()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A list of arms in a match expression.
@@ -609,10 +908,35 @@ module Raw {
      */
     MatchArm getArm(int index) { match_arm_list_arms(this, index, result) }
 
+    /**
+     * Gets the number of arms of this match arm list.
+     */
+    int getNumberOfArms() { result = count(int i | match_arm_list_arms(this, i, _)) }
+
     /**
      * Gets the `index`th attr of this match arm list (0-based).
      */
     Attr getAttr(int index) { match_arm_list_attrs(this, index, result) }
+
+    /**
+     * Gets the number of attrs of this match arm list.
+     */
+    int getNumberOfAttrs() { result = count(int i | match_arm_list_attrs(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfMatchArmList(MatchArmList e, int index) {
+    exists(int n, int nArm, int nAttr |
+      n = 0 and
+      nArm = n + e.getNumberOfArms() and
+      nAttr = nArm + e.getNumberOfAttrs() and
+      (
+        none()
+        or
+        result = e.getArm(index - n)
+        or
+        result = e.getAttr(index - nArm)
+      )
+    )
   }
 
   /**
@@ -637,6 +961,18 @@ module Raw {
     Expr getCondition() { match_guard_conditions(this, result) }
   }
 
+  private Element getImmediateChildOfMatchGuard(MatchGuard e, int index) {
+    exists(int n, int nCondition |
+      n = 0 and
+      nCondition = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getCondition()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A meta item in an attribute.
@@ -676,6 +1012,24 @@ module Raw {
     TokenTree getTokenTree() { meta_token_trees(this, result) }
   }
 
+  private Element getImmediateChildOfMeta(Meta e, int index) {
+    exists(int n, int nExpr, int nPath, int nTokenTree |
+      n = 0 and
+      nExpr = n + 1 and
+      nPath = nExpr + 1 and
+      nTokenTree = nPath + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getExpr()
+        or
+        index = nExpr and result = e.getPath()
+        or
+        index = nPath and result = e.getTokenTree()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * An identifier name.
@@ -695,6 +1049,8 @@ module Raw {
     string getText() { name_texts(this, result) }
   }
 
+  private Element getImmediateChildOfName(Name e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    * A normal parameter, `Param`, or a self parameter `SelfParam`.
@@ -705,6 +1061,11 @@ module Raw {
      */
     Attr getAttr(int index) { param_base_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this parameter base.
+     */
+    int getNumberOfAttrs() { result = count(int i | param_base_attrs(this, i, _)) }
+
     /**
      * Gets the type representation of this parameter base, if it exists.
      */
@@ -729,12 +1090,32 @@ module Raw {
      */
     Param getParam(int index) { param_list_params(this, index, result) }
 
+    /**
+     * Gets the number of parameters of this parameter list.
+     */
+    int getNumberOfParams() { result = count(int i | param_list_params(this, i, _)) }
+
     /**
      * Gets the self parameter of this parameter list, if it exists.
      */
     SelfParam getSelfParam() { param_list_self_params(this, result) }
   }
 
+  private Element getImmediateChildOfParamList(ParamList e, int index) {
+    exists(int n, int nParam, int nSelfParam |
+      n = 0 and
+      nParam = n + e.getNumberOfParams() and
+      nSelfParam = nParam + 1 and
+      (
+        none()
+        or
+        result = e.getParam(index - n)
+        or
+        index = nParam and result = e.getSelfParam()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A parenthesized argument list as used in function traits.
@@ -757,6 +1138,25 @@ module Raw {
      * Gets the `index`th type argument of this parenthesized argument list (0-based).
      */
     TypeArg getTypeArg(int index) { parenthesized_arg_list_type_args(this, index, result) }
+
+    /**
+     * Gets the number of type arguments of this parenthesized argument list.
+     */
+    int getNumberOfTypeArgs() {
+      result = count(int i | parenthesized_arg_list_type_args(this, i, _))
+    }
+  }
+
+  private Element getImmediateChildOfParenthesizedArgList(ParenthesizedArgList e, int index) {
+    exists(int n, int nTypeArg |
+      n = 0 and
+      nTypeArg = n + e.getNumberOfTypeArgs() and
+      (
+        none()
+        or
+        result = e.getTypeArg(index - n)
+      )
+    )
   }
 
   /**
@@ -787,6 +1187,21 @@ module Raw {
     PathSegment getSegment() { path_segments_(this, result) }
   }
 
+  private Element getImmediateChildOfPath(Path e, int index) {
+    exists(int n, int nQualifier, int nSegment |
+      n = 0 and
+      nQualifier = n + 1 and
+      nSegment = nQualifier + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getQualifier()
+        or
+        index = nQualifier and result = e.getSegment()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * An AST element wrapping a path (`PathExpr`, `RecordExpr`, `PathPat`, `RecordPat`, `TupleStructPat`).
@@ -849,6 +1264,39 @@ module Raw {
     PathTypeRepr getTraitTypeRepr() { path_segment_trait_type_reprs(this, result) }
   }
 
+  private Element getImmediateChildOfPathSegment(PathSegment e, int index) {
+    exists(
+      int n, int nGenericArgList, int nIdentifier, int nParenthesizedArgList, int nRetType,
+      int nReturnTypeSyntax, int nTypeRepr, int nTraitTypeRepr
+    |
+      n = 0 and
+      nGenericArgList = n + 1 and
+      nIdentifier = nGenericArgList + 1 and
+      nParenthesizedArgList = nIdentifier + 1 and
+      nRetType = nParenthesizedArgList + 1 and
+      nReturnTypeSyntax = nRetType + 1 and
+      nTypeRepr = nReturnTypeSyntax + 1 and
+      nTraitTypeRepr = nTypeRepr + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getGenericArgList()
+        or
+        index = nGenericArgList and result = e.getIdentifier()
+        or
+        index = nIdentifier and result = e.getParenthesizedArgList()
+        or
+        index = nParenthesizedArgList and result = e.getRetType()
+        or
+        index = nRetType and result = e.getReturnTypeSyntax()
+        or
+        index = nReturnTypeSyntax and result = e.getTypeRepr()
+        or
+        index = nTypeRepr and result = e.getTraitTypeRepr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A rename in a use declaration.
@@ -868,6 +1316,18 @@ module Raw {
     Name getName() { rename_names(this, result) }
   }
 
+  private Element getImmediateChildOfRename(Rename e, int index) {
+    exists(int n, int nName |
+      n = 0 and
+      nName = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getName()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A return type in a function signature.
@@ -887,6 +1347,18 @@ module Raw {
     TypeRepr getTypeRepr() { ret_type_repr_type_reprs(this, result) }
   }
 
+  private Element getImmediateChildOfRetTypeRepr(RetTypeRepr e, int index) {
+    exists(int n, int nTypeRepr |
+      n = 0 and
+      nTypeRepr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getTypeRepr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A return type notation `(..)` to reference or bound the type returned by a trait method
@@ -911,6 +1383,8 @@ module Raw {
     override string toString() { result = "ReturnTypeSyntax" }
   }
 
+  private Element getImmediateChildOfReturnTypeSyntax(ReturnTypeSyntax e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    * A source file.
@@ -929,10 +1403,35 @@ module Raw {
      */
     Attr getAttr(int index) { source_file_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this source file.
+     */
+    int getNumberOfAttrs() { result = count(int i | source_file_attrs(this, i, _)) }
+
     /**
      * Gets the `index`th item of this source file (0-based).
      */
     Item getItem(int index) { source_file_items(this, index, result) }
+
+    /**
+     * Gets the number of items of this source file.
+     */
+    int getNumberOfItems() { result = count(int i | source_file_items(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfSourceFile(SourceFile e, int index) {
+    exists(int n, int nAttr, int nItem |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nItem = nAttr + e.getNumberOfItems() and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        result = e.getItem(index - nAttr)
+      )
+    )
   }
 
   /**
@@ -964,6 +1463,11 @@ module Raw {
      */
     Attr getAttr(int index) { stmt_list_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this statement list.
+     */
+    int getNumberOfAttrs() { result = count(int i | stmt_list_attrs(this, i, _)) }
+
     /**
      * Gets the `index`th statement of this statement list (0-based).
      *
@@ -972,6 +1476,11 @@ module Raw {
      */
     Stmt getStatement(int index) { stmt_list_statements(this, index, result) }
 
+    /**
+     * Gets the number of statements of this statement list.
+     */
+    int getNumberOfStatements() { result = count(int i | stmt_list_statements(this, i, _)) }
+
     /**
      * Gets the tail expression of this statement list, if it exists.
      *
@@ -981,6 +1490,24 @@ module Raw {
     Expr getTailExpr() { stmt_list_tail_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfStmtList(StmtList e, int index) {
+    exists(int n, int nAttr, int nStatement, int nTailExpr |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nStatement = nAttr + e.getNumberOfStatements() and
+      nTailExpr = nStatement + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        result = e.getStatement(index - nAttr)
+        or
+        index = nStatement and result = e.getTailExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A field in a struct expression. For example `a: 1` in:
@@ -996,6 +1523,11 @@ module Raw {
      */
     Attr getAttr(int index) { struct_expr_field_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this struct expression field.
+     */
+    int getNumberOfAttrs() { result = count(int i | struct_expr_field_attrs(this, i, _)) }
+
     /**
      * Gets the expression of this struct expression field, if it exists.
      */
@@ -1007,6 +1539,24 @@ module Raw {
     NameRef getIdentifier() { struct_expr_field_identifiers(this, result) }
   }
 
+  private Element getImmediateChildOfStructExprField(StructExprField e, int index) {
+    exists(int n, int nAttr, int nExpr, int nIdentifier |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nExpr = nAttr + 1 and
+      nIdentifier = nExpr + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        index = nAttr and result = e.getExpr()
+        or
+        index = nExpr and result = e.getIdentifier()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A list of fields in a struct expression.
@@ -1025,17 +1575,45 @@ module Raw {
      */
     Attr getAttr(int index) { struct_expr_field_list_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this struct expression field list.
+     */
+    int getNumberOfAttrs() { result = count(int i | struct_expr_field_list_attrs(this, i, _)) }
+
     /**
      * Gets the `index`th field of this struct expression field list (0-based).
      */
     StructExprField getField(int index) { struct_expr_field_list_fields(this, index, result) }
 
+    /**
+     * Gets the number of fields of this struct expression field list.
+     */
+    int getNumberOfFields() { result = count(int i | struct_expr_field_list_fields(this, i, _)) }
+
     /**
      * Gets the spread of this struct expression field list, if it exists.
      */
     Expr getSpread() { struct_expr_field_list_spreads(this, result) }
   }
 
+  private Element getImmediateChildOfStructExprFieldList(StructExprFieldList e, int index) {
+    exists(int n, int nAttr, int nField, int nSpread |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nField = nAttr + e.getNumberOfFields() and
+      nSpread = nField + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        result = e.getField(index - nAttr)
+        or
+        index = nField and result = e.getSpread()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A field in a struct declaration.
@@ -1054,6 +1632,11 @@ module Raw {
      */
     Attr getAttr(int index) { struct_field_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this struct field.
+     */
+    int getNumberOfAttrs() { result = count(int i | struct_field_attrs(this, i, _)) }
+
     /**
      * Gets the default of this struct field, if it exists.
      */
@@ -1080,6 +1663,30 @@ module Raw {
     Visibility getVisibility() { struct_field_visibilities(this, result) }
   }
 
+  private Element getImmediateChildOfStructField(StructField e, int index) {
+    exists(int n, int nAttr, int nDefault, int nName, int nTypeRepr, int nVisibility |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nDefault = nAttr + 1 and
+      nName = nDefault + 1 and
+      nTypeRepr = nName + 1 and
+      nVisibility = nTypeRepr + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        index = nAttr and result = e.getDefault()
+        or
+        index = nDefault and result = e.getName()
+        or
+        index = nName and result = e.getTypeRepr()
+        or
+        index = nTypeRepr and result = e.getVisibility()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A field in a struct pattern. For example `a: 1` in:
@@ -1095,6 +1702,11 @@ module Raw {
      */
     Attr getAttr(int index) { struct_pat_field_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this struct pattern field.
+     */
+    int getNumberOfAttrs() { result = count(int i | struct_pat_field_attrs(this, i, _)) }
+
     /**
      * Gets the identifier of this struct pattern field, if it exists.
      */
@@ -1106,6 +1718,24 @@ module Raw {
     Pat getPat() { struct_pat_field_pats(this, result) }
   }
 
+  private Element getImmediateChildOfStructPatField(StructPatField e, int index) {
+    exists(int n, int nAttr, int nIdentifier, int nPat |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nIdentifier = nAttr + 1 and
+      nPat = nIdentifier + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        index = nAttr and result = e.getIdentifier()
+        or
+        index = nIdentifier and result = e.getPat()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A list of fields in a struct pattern.
@@ -1124,12 +1754,32 @@ module Raw {
      */
     StructPatField getField(int index) { struct_pat_field_list_fields(this, index, result) }
 
+    /**
+     * Gets the number of fields of this struct pattern field list.
+     */
+    int getNumberOfFields() { result = count(int i | struct_pat_field_list_fields(this, i, _)) }
+
     /**
      * Gets the rest pattern of this struct pattern field list, if it exists.
      */
     RestPat getRestPat() { struct_pat_field_list_rest_pats(this, result) }
   }
 
+  private Element getImmediateChildOfStructPatFieldList(StructPatFieldList e, int index) {
+    exists(int n, int nField, int nRestPat |
+      n = 0 and
+      nField = n + e.getNumberOfFields() and
+      nRestPat = nField + 1 and
+      (
+        none()
+        or
+        result = e.getField(index - n)
+        or
+        index = nField and result = e.getRestPat()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * The base class for all tokens.
@@ -1154,6 +1804,8 @@ module Raw {
     override string toString() { result = "TokenTree" }
   }
 
+  private Element getImmediateChildOfTokenTree(TokenTree e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    * A field in a tuple struct or tuple enum variant.
@@ -1172,6 +1824,11 @@ module Raw {
      */
     Attr getAttr(int index) { tuple_field_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this tuple field.
+     */
+    int getNumberOfAttrs() { result = count(int i | tuple_field_attrs(this, i, _)) }
+
     /**
      * Gets the type representation of this tuple field, if it exists.
      */
@@ -1183,6 +1840,24 @@ module Raw {
     Visibility getVisibility() { tuple_field_visibilities(this, result) }
   }
 
+  private Element getImmediateChildOfTupleField(TupleField e, int index) {
+    exists(int n, int nAttr, int nTypeRepr, int nVisibility |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nTypeRepr = nAttr + 1 and
+      nVisibility = nTypeRepr + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        index = nAttr and result = e.getTypeRepr()
+        or
+        index = nTypeRepr and result = e.getVisibility()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A type bound in a trait or generic parameter.
@@ -1229,6 +1904,27 @@ module Raw {
     UseBoundGenericArgs getUseBoundGenericArgs() { type_bound_use_bound_generic_args(this, result) }
   }
 
+  private Element getImmediateChildOfTypeBound(TypeBound e, int index) {
+    exists(int n, int nForBinder, int nLifetime, int nTypeRepr, int nUseBoundGenericArgs |
+      n = 0 and
+      nForBinder = n + 1 and
+      nLifetime = nForBinder + 1 and
+      nTypeRepr = nLifetime + 1 and
+      nUseBoundGenericArgs = nTypeRepr + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getForBinder()
+        or
+        index = nForBinder and result = e.getLifetime()
+        or
+        index = nLifetime and result = e.getTypeRepr()
+        or
+        index = nTypeRepr and result = e.getUseBoundGenericArgs()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A list of type bounds.
@@ -1246,6 +1942,23 @@ module Raw {
      * Gets the `index`th bound of this type bound list (0-based).
      */
     TypeBound getBound(int index) { type_bound_list_bounds(this, index, result) }
+
+    /**
+     * Gets the number of bounds of this type bound list.
+     */
+    int getNumberOfBounds() { result = count(int i | type_bound_list_bounds(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfTypeBoundList(TypeBoundList e, int index) {
+    exists(int n, int nBound |
+      n = 0 and
+      nBound = n + e.getNumberOfBounds() and
+      (
+        none()
+        or
+        result = e.getBound(index - n)
+      )
+    )
   }
 
   /**
@@ -1283,6 +1996,25 @@ module Raw {
     UseBoundGenericArg getUseBoundGenericArg(int index) {
       use_bound_generic_args_use_bound_generic_args(this, index, result)
     }
+
+    /**
+     * Gets the number of use bound generic arguments of this use bound generic arguments.
+     */
+    int getNumberOfUseBoundGenericArgs() {
+      result = count(int i | use_bound_generic_args_use_bound_generic_args(this, i, _))
+    }
+  }
+
+  private Element getImmediateChildOfUseBoundGenericArgs(UseBoundGenericArgs e, int index) {
+    exists(int n, int nUseBoundGenericArg |
+      n = 0 and
+      nUseBoundGenericArg = n + e.getNumberOfUseBoundGenericArgs() and
+      (
+        none()
+        or
+        result = e.getUseBoundGenericArg(index - n)
+      )
+    )
   }
 
   /**
@@ -1319,6 +2051,24 @@ module Raw {
     UseTreeList getUseTreeList() { use_tree_use_tree_lists(this, result) }
   }
 
+  private Element getImmediateChildOfUseTree(UseTree e, int index) {
+    exists(int n, int nPath, int nRename, int nUseTreeList |
+      n = 0 and
+      nPath = n + 1 and
+      nRename = nPath + 1 and
+      nUseTreeList = nRename + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getPath()
+        or
+        index = nPath and result = e.getRename()
+        or
+        index = nRename and result = e.getUseTreeList()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A list of use trees in a use declaration.
@@ -1336,6 +2086,23 @@ module Raw {
      * Gets the `index`th use tree of this use tree list (0-based).
      */
     UseTree getUseTree(int index) { use_tree_list_use_trees(this, index, result) }
+
+    /**
+     * Gets the number of use trees of this use tree list.
+     */
+    int getNumberOfUseTrees() { result = count(int i | use_tree_list_use_trees(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfUseTreeList(UseTreeList e, int index) {
+    exists(int n, int nUseTree |
+      n = 0 and
+      nUseTree = n + e.getNumberOfUseTrees() and
+      (
+        none()
+        or
+        result = e.getUseTree(index - n)
+      )
+    )
   }
 
   /**
@@ -1355,6 +2122,23 @@ module Raw {
      * Gets the `index`th variant of this variant list (0-based).
      */
     Variant getVariant(int index) { variant_list_variants(this, index, result) }
+
+    /**
+     * Gets the number of variants of this variant list.
+     */
+    int getNumberOfVariants() { result = count(int i | variant_list_variants(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfVariantList(VariantList e, int index) {
+    exists(int n, int nVariant |
+      n = 0 and
+      nVariant = n + e.getNumberOfVariants() and
+      (
+        none()
+        or
+        result = e.getVariant(index - n)
+      )
+    )
   }
 
   /**
@@ -1376,6 +2160,18 @@ module Raw {
     Path getPath() { visibility_paths(this, result) }
   }
 
+  private Element getImmediateChildOfVisibility(Visibility e, int index) {
+    exists(int n, int nPath |
+      n = 0 and
+      nPath = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getPath()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A where clause in a generic declaration.
@@ -1393,6 +2189,23 @@ module Raw {
      * Gets the `index`th predicate of this where clause (0-based).
      */
     WherePred getPredicate(int index) { where_clause_predicates(this, index, result) }
+
+    /**
+     * Gets the number of predicates of this where clause.
+     */
+    int getNumberOfPredicates() { result = count(int i | where_clause_predicates(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfWhereClause(WhereClause e, int index) {
+    exists(int n, int nPredicate |
+      n = 0 and
+      nPredicate = n + e.getNumberOfPredicates() and
+      (
+        none()
+        or
+        result = e.getPredicate(index - n)
+      )
+    )
   }
 
   /**
@@ -1431,6 +2244,27 @@ module Raw {
     TypeBoundList getTypeBoundList() { where_pred_type_bound_lists(this, result) }
   }
 
+  private Element getImmediateChildOfWherePred(WherePred e, int index) {
+    exists(int n, int nForBinder, int nLifetime, int nTypeRepr, int nTypeBoundList |
+      n = 0 and
+      nForBinder = n + 1 and
+      nLifetime = nForBinder + 1 and
+      nTypeRepr = nLifetime + 1 and
+      nTypeBoundList = nTypeRepr + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getForBinder()
+        or
+        index = nForBinder and result = e.getLifetime()
+        or
+        index = nLifetime and result = e.getTypeRepr()
+        or
+        index = nTypeRepr and result = e.getTypeBoundList()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1442,17 +2276,42 @@ module Raw {
      */
     Attr getAttr(int index) { array_expr_internal_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this array expression internal.
+     */
+    int getNumberOfAttrs() { result = count(int i | array_expr_internal_attrs(this, i, _)) }
+
     /**
      * Gets the `index`th expression of this array expression internal (0-based).
      */
     Expr getExpr(int index) { array_expr_internal_exprs(this, index, result) }
 
+    /**
+     * Gets the number of expressions of this array expression internal.
+     */
+    int getNumberOfExprs() { result = count(int i | array_expr_internal_exprs(this, i, _)) }
+
     /**
      * Holds if this array expression internal is semicolon.
      */
     predicate isSemicolon() { array_expr_internal_is_semicolon(this) }
   }
 
+  private Element getImmediateChildOfArrayExprInternal(ArrayExprInternal e, int index) {
+    exists(int n, int nAttr, int nExpr |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nExpr = nAttr + e.getNumberOfExprs() and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        result = e.getExpr(index - nAttr)
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * An array type representation.
@@ -1477,6 +2336,21 @@ module Raw {
     TypeRepr getElementTypeRepr() { array_type_repr_element_type_reprs(this, result) }
   }
 
+  private Element getImmediateChildOfArrayTypeRepr(ArrayTypeRepr e, int index) {
+    exists(int n, int nConstArg, int nElementTypeRepr |
+      n = 0 and
+      nConstArg = n + 1 and
+      nElementTypeRepr = nConstArg + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getConstArg()
+        or
+        index = nConstArg and result = e.getElementTypeRepr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A clobbered ABI in an inline assembly block.
@@ -1492,6 +2366,8 @@ module Raw {
     override string toString() { result = "AsmClobberAbi" }
   }
 
+  private Element getImmediateChildOfAsmClobberAbi(AsmClobberAbi e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    * A constant operand in an inline assembly block.
@@ -1517,6 +2393,18 @@ module Raw {
     predicate isConst() { asm_const_is_const(this) }
   }
 
+  private Element getImmediateChildOfAsmConst(AsmConst e, int index) {
+    exists(int n, int nExpr |
+      n = 0 and
+      nExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A label in an inline assembly block.
@@ -1540,6 +2428,18 @@ module Raw {
     BlockExpr getBlockExpr() { asm_label_block_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfAsmLabel(AsmLabel e, int index) {
+    exists(int n, int nBlockExpr |
+      n = 0 and
+      nBlockExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getBlockExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A named operand in an inline assembly block.
@@ -1565,6 +2465,21 @@ module Raw {
     Name getName() { asm_operand_named_names(this, result) }
   }
 
+  private Element getImmediateChildOfAsmOperandNamed(AsmOperandNamed e, int index) {
+    exists(int n, int nAsmOperand, int nName |
+      n = 0 and
+      nAsmOperand = n + 1 and
+      nName = nAsmOperand + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getAsmOperand()
+        or
+        index = nAsmOperand and result = e.getName()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A list of options in an inline assembly block.
@@ -1583,6 +2498,23 @@ module Raw {
      * Gets the `index`th asm option of this asm options list (0-based).
      */
     AsmOption getAsmOption(int index) { asm_options_list_asm_options(this, index, result) }
+
+    /**
+     * Gets the number of asm options of this asm options list.
+     */
+    int getNumberOfAsmOptions() { result = count(int i | asm_options_list_asm_options(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfAsmOptionsList(AsmOptionsList e, int index) {
+    exists(int n, int nAsmOption |
+      n = 0 and
+      nAsmOption = n + e.getNumberOfAsmOptions() and
+      (
+        none()
+        or
+        result = e.getAsmOption(index - n)
+      )
+    )
   }
 
   /**
@@ -1615,6 +2547,24 @@ module Raw {
     AsmRegSpec getAsmRegSpec() { asm_reg_operand_asm_reg_specs(this, result) }
   }
 
+  private Element getImmediateChildOfAsmRegOperand(AsmRegOperand e, int index) {
+    exists(int n, int nAsmDirSpec, int nAsmOperandExpr, int nAsmRegSpec |
+      n = 0 and
+      nAsmDirSpec = n + 1 and
+      nAsmOperandExpr = nAsmDirSpec + 1 and
+      nAsmRegSpec = nAsmOperandExpr + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getAsmDirSpec()
+        or
+        index = nAsmDirSpec and result = e.getAsmOperandExpr()
+        or
+        index = nAsmOperandExpr and result = e.getAsmRegSpec()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A symbol operand in an inline assembly block.
@@ -1635,6 +2585,18 @@ module Raw {
     Path getPath() { asm_sym_paths(this, result) }
   }
 
+  private Element getImmediateChildOfAsmSym(AsmSym e, int index) {
+    exists(int n, int nPath |
+      n = 0 and
+      nPath = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getPath()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * An associated type argument in a path.
@@ -1694,6 +2656,42 @@ module Raw {
     TypeBoundList getTypeBoundList() { assoc_type_arg_type_bound_lists(this, result) }
   }
 
+  private Element getImmediateChildOfAssocTypeArg(AssocTypeArg e, int index) {
+    exists(
+      int n, int nConstArg, int nGenericArgList, int nIdentifier, int nParamList, int nRetType,
+      int nReturnTypeSyntax, int nTypeRepr, int nTypeBoundList
+    |
+      n = 0 and
+      nConstArg = n + 1 and
+      nGenericArgList = nConstArg + 1 and
+      nIdentifier = nGenericArgList + 1 and
+      nParamList = nIdentifier + 1 and
+      nRetType = nParamList + 1 and
+      nReturnTypeSyntax = nRetType + 1 and
+      nTypeRepr = nReturnTypeSyntax + 1 and
+      nTypeBoundList = nTypeRepr + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getConstArg()
+        or
+        index = nConstArg and result = e.getGenericArgList()
+        or
+        index = nGenericArgList and result = e.getIdentifier()
+        or
+        index = nIdentifier and result = e.getParamList()
+        or
+        index = nParamList and result = e.getRetType()
+        or
+        index = nRetType and result = e.getReturnTypeSyntax()
+        or
+        index = nReturnTypeSyntax and result = e.getTypeRepr()
+        or
+        index = nTypeRepr and result = e.getTypeBoundList()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * An `await` expression. For example:
@@ -1712,12 +2710,32 @@ module Raw {
      */
     Attr getAttr(int index) { await_expr_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this await expression.
+     */
+    int getNumberOfAttrs() { result = count(int i | await_expr_attrs(this, i, _)) }
+
     /**
      * Gets the expression of this await expression, if it exists.
      */
     Expr getExpr() { await_expr_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfAwaitExpr(AwaitExpr e, int index) {
+    exists(int n, int nAttr, int nExpr |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nExpr = nAttr + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        index = nAttr and result = e.getExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A `become` expression. For example:
@@ -1739,12 +2757,32 @@ module Raw {
      */
     Attr getAttr(int index) { become_expr_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this become expression.
+     */
+    int getNumberOfAttrs() { result = count(int i | become_expr_attrs(this, i, _)) }
+
     /**
      * Gets the expression of this become expression, if it exists.
      */
     Expr getExpr() { become_expr_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfBecomeExpr(BecomeExpr e, int index) {
+    exists(int n, int nAttr, int nExpr |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nExpr = nAttr + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        index = nAttr and result = e.getExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A binary operation expression. For example:
@@ -1764,6 +2802,11 @@ module Raw {
      */
     Attr getAttr(int index) { binary_expr_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this binary expression.
+     */
+    int getNumberOfAttrs() { result = count(int i | binary_expr_attrs(this, i, _)) }
+
     /**
      * Gets the lhs of this binary expression, if it exists.
      */
@@ -1780,6 +2823,24 @@ module Raw {
     Expr getRhs() { binary_expr_rhs(this, result) }
   }
 
+  private Element getImmediateChildOfBinaryExpr(BinaryExpr e, int index) {
+    exists(int n, int nAttr, int nLhs, int nRhs |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nLhs = nAttr + 1 and
+      nRhs = nLhs + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        index = nAttr and result = e.getLhs()
+        or
+        index = nLhs and result = e.getRhs()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A box pattern. For example:
@@ -1799,6 +2860,18 @@ module Raw {
     Pat getPat() { box_pat_pats(this, result) }
   }
 
+  private Element getImmediateChildOfBoxPat(BoxPat e, int index) {
+    exists(int n, int nPat |
+      n = 0 and
+      nPat = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getPat()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A break expression. For example:
@@ -1833,6 +2906,11 @@ module Raw {
      */
     Attr getAttr(int index) { break_expr_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this break expression.
+     */
+    int getNumberOfAttrs() { result = count(int i | break_expr_attrs(this, i, _)) }
+
     /**
      * Gets the expression of this break expression, if it exists.
      */
@@ -1844,6 +2922,24 @@ module Raw {
     Lifetime getLifetime() { break_expr_lifetimes(this, result) }
   }
 
+  private Element getImmediateChildOfBreakExpr(BreakExpr e, int index) {
+    exists(int n, int nAttr, int nExpr, int nLifetime |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nExpr = nAttr + 1 and
+      nLifetime = nExpr + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        index = nAttr and result = e.getExpr()
+        or
+        index = nExpr and result = e.getLifetime()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A function or method call expression. See `CallExpr` and `MethodCallExpr` for further details.
@@ -1858,6 +2954,11 @@ module Raw {
      * Gets the `index`th attr of this call expression base (0-based).
      */
     Attr getAttr(int index) { call_expr_base_attrs(this, index, result) }
+
+    /**
+     * Gets the number of attrs of this call expression base.
+     */
+    int getNumberOfAttrs() { result = count(int i | call_expr_base_attrs(this, i, _)) }
   }
 
   /**
@@ -1875,6 +2976,11 @@ module Raw {
      */
     Attr getAttr(int index) { cast_expr_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this cast expression.
+     */
+    int getNumberOfAttrs() { result = count(int i | cast_expr_attrs(this, i, _)) }
+
     /**
      * Gets the expression of this cast expression, if it exists.
      */
@@ -1886,6 +2992,24 @@ module Raw {
     TypeRepr getTypeRepr() { cast_expr_type_reprs(this, result) }
   }
 
+  private Element getImmediateChildOfCastExpr(CastExpr e, int index) {
+    exists(int n, int nAttr, int nExpr, int nTypeRepr |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nExpr = nAttr + 1 and
+      nTypeRepr = nExpr + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        index = nAttr and result = e.getExpr()
+        or
+        index = nExpr and result = e.getTypeRepr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A closure expression. For example:
@@ -1946,6 +3070,30 @@ module Raw {
     RetTypeRepr getRetType() { closure_expr_ret_types(this, result) }
   }
 
+  private Element getImmediateChildOfClosureExpr(ClosureExpr e, int index) {
+    exists(int n, int nParamList, int nAttr, int nClosureBody, int nForBinder, int nRetType |
+      n = 0 and
+      nParamList = n + 1 and
+      nAttr = nParamList + e.getNumberOfAttrs() and
+      nClosureBody = nAttr + 1 and
+      nForBinder = nClosureBody + 1 and
+      nRetType = nForBinder + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getParamList()
+        or
+        result = e.getAttr(index - nParamList)
+        or
+        index = nAttr and result = e.getClosureBody()
+        or
+        index = nClosureBody and result = e.getForBinder()
+        or
+        index = nForBinder and result = e.getRetType()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A comment. For example:
@@ -1968,6 +3116,8 @@ module Raw {
     string getText() { comments(this, _, result) }
   }
 
+  private Element getImmediateChildOfComment(Comment e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    * A constant argument in a generic argument list.
@@ -1987,6 +3137,18 @@ module Raw {
     Expr getExpr() { const_arg_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfConstArg(ConstArg e, int index) {
+    exists(int n, int nExpr |
+      n = 0 and
+      nExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A const block pattern. For example:
@@ -2011,6 +3173,18 @@ module Raw {
     predicate isConst() { const_block_pat_is_const(this) }
   }
 
+  private Element getImmediateChildOfConstBlockPat(ConstBlockPat e, int index) {
+    exists(int n, int nBlockExpr |
+      n = 0 and
+      nBlockExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getBlockExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A constant parameter in a generic parameter list.
@@ -2029,6 +3203,11 @@ module Raw {
      */
     Attr getAttr(int index) { const_param_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this const parameter.
+     */
+    int getNumberOfAttrs() { result = count(int i | const_param_attrs(this, i, _)) }
+
     /**
      * Gets the default val of this const parameter, if it exists.
      */
@@ -2050,6 +3229,27 @@ module Raw {
     TypeRepr getTypeRepr() { const_param_type_reprs(this, result) }
   }
 
+  private Element getImmediateChildOfConstParam(ConstParam e, int index) {
+    exists(int n, int nAttr, int nDefaultVal, int nName, int nTypeRepr |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nDefaultVal = nAttr + 1 and
+      nName = nDefaultVal + 1 and
+      nTypeRepr = nName + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        index = nAttr and result = e.getDefaultVal()
+        or
+        index = nDefaultVal and result = e.getName()
+        or
+        index = nName and result = e.getTypeRepr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A continue expression. For example:
@@ -2076,12 +3276,32 @@ module Raw {
      */
     Attr getAttr(int index) { continue_expr_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this continue expression.
+     */
+    int getNumberOfAttrs() { result = count(int i | continue_expr_attrs(this, i, _)) }
+
     /**
      * Gets the lifetime of this continue expression, if it exists.
      */
     Lifetime getLifetime() { continue_expr_lifetimes(this, result) }
   }
 
+  private Element getImmediateChildOfContinueExpr(ContinueExpr e, int index) {
+    exists(int n, int nAttr, int nLifetime |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nLifetime = nAttr + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        index = nAttr and result = e.getLifetime()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A dynamic trait object type.
@@ -2101,6 +3321,18 @@ module Raw {
     TypeBoundList getTypeBoundList() { dyn_trait_type_repr_type_bound_lists(this, result) }
   }
 
+  private Element getImmediateChildOfDynTraitTypeRepr(DynTraitTypeRepr e, int index) {
+    exists(int n, int nTypeBoundList |
+      n = 0 and
+      nTypeBoundList = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getTypeBoundList()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * An expression statement. For example:
@@ -2119,6 +3351,18 @@ module Raw {
     Expr getExpr() { expr_stmt_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfExprStmt(ExprStmt e, int index) {
+    exists(int n, int nExpr |
+      n = 0 and
+      nExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A field access expression. For example:
@@ -2134,6 +3378,11 @@ module Raw {
      */
     Attr getAttr(int index) { field_expr_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this field expression.
+     */
+    int getNumberOfAttrs() { result = count(int i | field_expr_attrs(this, i, _)) }
+
     /**
      * Gets the container of this field expression, if it exists.
      */
@@ -2145,6 +3394,24 @@ module Raw {
     NameRef getIdentifier() { field_expr_identifiers(this, result) }
   }
 
+  private Element getImmediateChildOfFieldExpr(FieldExpr e, int index) {
+    exists(int n, int nAttr, int nContainer, int nIdentifier |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nContainer = nAttr + 1 and
+      nIdentifier = nContainer + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        index = nAttr and result = e.getContainer()
+        or
+        index = nContainer and result = e.getIdentifier()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A function pointer type.
@@ -2189,6 +3456,24 @@ module Raw {
     RetTypeRepr getRetType() { fn_ptr_type_repr_ret_types(this, result) }
   }
 
+  private Element getImmediateChildOfFnPtrTypeRepr(FnPtrTypeRepr e, int index) {
+    exists(int n, int nAbi, int nParamList, int nRetType |
+      n = 0 and
+      nAbi = n + 1 and
+      nParamList = nAbi + 1 and
+      nRetType = nParamList + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getAbi()
+        or
+        index = nAbi and result = e.getParamList()
+        or
+        index = nParamList and result = e.getRetType()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A function pointer type with a `for` modifier.
@@ -2213,6 +3498,21 @@ module Raw {
     TypeRepr getTypeRepr() { for_type_repr_type_reprs(this, result) }
   }
 
+  private Element getImmediateChildOfForTypeRepr(ForTypeRepr e, int index) {
+    exists(int n, int nForBinder, int nTypeRepr |
+      n = 0 and
+      nForBinder = n + 1 and
+      nTypeRepr = nForBinder + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getForBinder()
+        or
+        index = nForBinder and result = e.getTypeRepr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A FormatArgsExpr. For example:
@@ -2232,17 +3532,46 @@ module Raw {
      */
     FormatArgsArg getArg(int index) { format_args_expr_args(this, index, result) }
 
+    /**
+     * Gets the number of arguments of this format arguments expression.
+     */
+    int getNumberOfArgs() { result = count(int i | format_args_expr_args(this, i, _)) }
+
     /**
      * Gets the `index`th attr of this format arguments expression (0-based).
      */
     Attr getAttr(int index) { format_args_expr_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this format arguments expression.
+     */
+    int getNumberOfAttrs() { result = count(int i | format_args_expr_attrs(this, i, _)) }
+
     /**
      * Gets the template of this format arguments expression, if it exists.
      */
     Expr getTemplate() { format_args_expr_templates(this, result) }
   }
 
+  private Element getImmediateChildOfFormatArgsExpr(FormatArgsExpr e, int index) {
+    exists(int n, int nArg, int nAttr, int nTemplate, int nFormat |
+      n = 0 and
+      nArg = n + e.getNumberOfArgs() and
+      nAttr = nArg + e.getNumberOfAttrs() and
+      nTemplate = nAttr + 1 and
+      nFormat = nTemplate and
+      (
+        none()
+        or
+        result = e.getArg(index - n)
+        or
+        result = e.getAttr(index - nArg)
+        or
+        index = nAttr and result = e.getTemplate()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A binding pattern. For example:
@@ -2267,6 +3596,11 @@ module Raw {
      */
     Attr getAttr(int index) { ident_pat_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this ident pattern.
+     */
+    int getNumberOfAttrs() { result = count(int i | ident_pat_attrs(this, i, _)) }
+
     /**
      * Holds if this ident pattern is mut.
      */
@@ -2288,6 +3622,24 @@ module Raw {
     Pat getPat() { ident_pat_pats(this, result) }
   }
 
+  private Element getImmediateChildOfIdentPat(IdentPat e, int index) {
+    exists(int n, int nAttr, int nName, int nPat |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nName = nAttr + 1 and
+      nPat = nName + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        index = nAttr and result = e.getName()
+        or
+        index = nName and result = e.getPat()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * An `if` expression. For example:
@@ -2312,6 +3664,11 @@ module Raw {
      */
     Attr getAttr(int index) { if_expr_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this if expression.
+     */
+    int getNumberOfAttrs() { result = count(int i | if_expr_attrs(this, i, _)) }
+
     /**
      * Gets the condition of this if expression, if it exists.
      */
@@ -2328,6 +3685,27 @@ module Raw {
     BlockExpr getThen() { if_expr_thens(this, result) }
   }
 
+  private Element getImmediateChildOfIfExpr(IfExpr e, int index) {
+    exists(int n, int nAttr, int nCondition, int nElse, int nThen |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nCondition = nAttr + 1 and
+      nElse = nCondition + 1 and
+      nThen = nElse + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        index = nAttr and result = e.getCondition()
+        or
+        index = nCondition and result = e.getElse()
+        or
+        index = nElse and result = e.getThen()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * An `impl Trait` type.
@@ -2347,6 +3725,18 @@ module Raw {
     TypeBoundList getTypeBoundList() { impl_trait_type_repr_type_bound_lists(this, result) }
   }
 
+  private Element getImmediateChildOfImplTraitTypeRepr(ImplTraitTypeRepr e, int index) {
+    exists(int n, int nTypeBoundList |
+      n = 0 and
+      nTypeBoundList = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getTypeBoundList()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * An index expression. For example:
@@ -2363,6 +3753,11 @@ module Raw {
      */
     Attr getAttr(int index) { index_expr_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this index expression.
+     */
+    int getNumberOfAttrs() { result = count(int i | index_expr_attrs(this, i, _)) }
+
     /**
      * Gets the base of this index expression, if it exists.
      */
@@ -2374,6 +3769,24 @@ module Raw {
     Expr getIndex() { index_expr_indices(this, result) }
   }
 
+  private Element getImmediateChildOfIndexExpr(IndexExpr e, int index) {
+    exists(int n, int nAttr, int nBase, int nIndex |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nBase = nAttr + 1 and
+      nIndex = nBase + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        index = nAttr and result = e.getBase()
+        or
+        index = nBase and result = e.getIndex()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * An inferred type (`_`).
@@ -2388,6 +3801,8 @@ module Raw {
     override string toString() { result = "InferTypeRepr" }
   }
 
+  private Element getImmediateChildOfInferTypeRepr(InferTypeRepr e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    * An item such as a function, struct, enum, etc.
@@ -2434,6 +3849,11 @@ module Raw {
      */
     Attr getAttr(int index) { let_expr_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this let expression.
+     */
+    int getNumberOfAttrs() { result = count(int i | let_expr_attrs(this, i, _)) }
+
     /**
      * Gets the scrutinee of this let expression, if it exists.
      */
@@ -2445,6 +3865,24 @@ module Raw {
     Pat getPat() { let_expr_pats(this, result) }
   }
 
+  private Element getImmediateChildOfLetExpr(LetExpr e, int index) {
+    exists(int n, int nAttr, int nScrutinee, int nPat |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nScrutinee = nAttr + 1 and
+      nPat = nScrutinee + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        index = nAttr and result = e.getScrutinee()
+        or
+        index = nScrutinee and result = e.getPat()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A let statement. For example:
@@ -2467,6 +3905,11 @@ module Raw {
      */
     Attr getAttr(int index) { let_stmt_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this let statement.
+     */
+    int getNumberOfAttrs() { result = count(int i | let_stmt_attrs(this, i, _)) }
+
     /**
      * Gets the initializer of this let statement, if it exists.
      */
@@ -2488,6 +3931,30 @@ module Raw {
     TypeRepr getTypeRepr() { let_stmt_type_reprs(this, result) }
   }
 
+  private Element getImmediateChildOfLetStmt(LetStmt e, int index) {
+    exists(int n, int nAttr, int nInitializer, int nLetElse, int nPat, int nTypeRepr |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nInitializer = nAttr + 1 and
+      nLetElse = nInitializer + 1 and
+      nPat = nLetElse + 1 and
+      nTypeRepr = nPat + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        index = nAttr and result = e.getInitializer()
+        or
+        index = nInitializer and result = e.getLetElse()
+        or
+        index = nLetElse and result = e.getPat()
+        or
+        index = nPat and result = e.getTypeRepr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A lifetime annotation.
@@ -2507,6 +3974,8 @@ module Raw {
     string getText() { lifetime_texts(this, result) }
   }
 
+  private Element getImmediateChildOfLifetime(Lifetime e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    * A lifetime argument in a generic argument list.
@@ -2526,6 +3995,18 @@ module Raw {
     Lifetime getLifetime() { lifetime_arg_lifetimes(this, result) }
   }
 
+  private Element getImmediateChildOfLifetimeArg(LifetimeArg e, int index) {
+    exists(int n, int nLifetime |
+      n = 0 and
+      nLifetime = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getLifetime()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A lifetime parameter in a generic parameter list.
@@ -2544,6 +4025,11 @@ module Raw {
      */
     Attr getAttr(int index) { lifetime_param_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this lifetime parameter.
+     */
+    int getNumberOfAttrs() { result = count(int i | lifetime_param_attrs(this, i, _)) }
+
     /**
      * Gets the lifetime of this lifetime parameter, if it exists.
      */
@@ -2555,6 +4041,24 @@ module Raw {
     TypeBoundList getTypeBoundList() { lifetime_param_type_bound_lists(this, result) }
   }
 
+  private Element getImmediateChildOfLifetimeParam(LifetimeParam e, int index) {
+    exists(int n, int nAttr, int nLifetime, int nTypeBoundList |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nLifetime = nAttr + 1 and
+      nTypeBoundList = nLifetime + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        index = nAttr and result = e.getLifetime()
+        or
+        index = nLifetime and result = e.getTypeBoundList()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A literal expression. For example:
@@ -2577,12 +4081,29 @@ module Raw {
      */
     Attr getAttr(int index) { literal_expr_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this literal expression.
+     */
+    int getNumberOfAttrs() { result = count(int i | literal_expr_attrs(this, i, _)) }
+
     /**
      * Gets the text value of this literal expression, if it exists.
      */
     string getTextValue() { literal_expr_text_values(this, result) }
   }
 
+  private Element getImmediateChildOfLiteralExpr(LiteralExpr e, int index) {
+    exists(int n, int nAttr |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A literal pattern. For example:
@@ -2602,6 +4123,18 @@ module Raw {
     LiteralExpr getLiteral() { literal_pat_literals(this, result) }
   }
 
+  private Element getImmediateChildOfLiteralPat(LiteralPat e, int index) {
+    exists(int n, int nLiteral |
+      n = 0 and
+      nLiteral = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getLiteral()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A sequence of statements generated by a `MacroCall`. For example:
@@ -2625,12 +4158,32 @@ module Raw {
      */
     Stmt getStatement(int index) { macro_block_expr_statements(this, index, result) }
 
+    /**
+     * Gets the number of statements of this macro block expression.
+     */
+    int getNumberOfStatements() { result = count(int i | macro_block_expr_statements(this, i, _)) }
+
     /**
      * Gets the tail expression of this macro block expression, if it exists.
      */
     Expr getTailExpr() { macro_block_expr_tail_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfMacroBlockExpr(MacroBlockExpr e, int index) {
+    exists(int n, int nStatement, int nTailExpr |
+      n = 0 and
+      nStatement = n + e.getNumberOfStatements() and
+      nTailExpr = nStatement + 1 and
+      (
+        none()
+        or
+        result = e.getStatement(index - n)
+        or
+        index = nStatement and result = e.getTailExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A macro expression, representing the invocation of a macro that produces an expression.
@@ -2649,6 +4202,18 @@ module Raw {
     MacroCall getMacroCall() { macro_expr_macro_calls(this, result) }
   }
 
+  private Element getImmediateChildOfMacroExpr(MacroExpr e, int index) {
+    exists(int n, int nMacroCall |
+      n = 0 and
+      nMacroCall = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getMacroCall()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A macro pattern, representing the invocation of a macro that produces a pattern.
@@ -2676,6 +4241,18 @@ module Raw {
     MacroCall getMacroCall() { macro_pat_macro_calls(this, result) }
   }
 
+  private Element getImmediateChildOfMacroPat(MacroPat e, int index) {
+    exists(int n, int nMacroCall |
+      n = 0 and
+      nMacroCall = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getMacroCall()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A type produced by a macro.
@@ -2698,6 +4275,18 @@ module Raw {
     MacroCall getMacroCall() { macro_type_repr_macro_calls(this, result) }
   }
 
+  private Element getImmediateChildOfMacroTypeRepr(MacroTypeRepr e, int index) {
+    exists(int n, int nMacroCall |
+      n = 0 and
+      nMacroCall = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getMacroCall()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A match expression. For example:
@@ -2722,6 +4311,11 @@ module Raw {
      */
     Attr getAttr(int index) { match_expr_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this match expression.
+     */
+    int getNumberOfAttrs() { result = count(int i | match_expr_attrs(this, i, _)) }
+
     /**
      * Gets the scrutinee (the expression being matched) of this match expression, if it exists.
      */
@@ -2733,6 +4327,24 @@ module Raw {
     MatchArmList getMatchArmList() { match_expr_match_arm_lists(this, result) }
   }
 
+  private Element getImmediateChildOfMatchExpr(MatchExpr e, int index) {
+    exists(int n, int nAttr, int nScrutinee, int nMatchArmList |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nScrutinee = nAttr + 1 and
+      nMatchArmList = nScrutinee + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        index = nAttr and result = e.getScrutinee()
+        or
+        index = nScrutinee and result = e.getMatchArmList()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A reference to a name.
@@ -2752,6 +4364,8 @@ module Raw {
     string getText() { name_ref_texts(this, result) }
   }
 
+  private Element getImmediateChildOfNameRef(NameRef e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    * The never type `!`.
@@ -2766,6 +4380,8 @@ module Raw {
     override string toString() { result = "NeverTypeRepr" }
   }
 
+  private Element getImmediateChildOfNeverTypeRepr(NeverTypeRepr e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    *  An `offset_of` expression. For example:
@@ -2781,17 +4397,45 @@ module Raw {
      */
     Attr getAttr(int index) { offset_of_expr_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this offset of expression.
+     */
+    int getNumberOfAttrs() { result = count(int i | offset_of_expr_attrs(this, i, _)) }
+
     /**
      * Gets the `index`th field of this offset of expression (0-based).
      */
     NameRef getField(int index) { offset_of_expr_fields(this, index, result) }
 
+    /**
+     * Gets the number of fields of this offset of expression.
+     */
+    int getNumberOfFields() { result = count(int i | offset_of_expr_fields(this, i, _)) }
+
     /**
      * Gets the type representation of this offset of expression, if it exists.
      */
     TypeRepr getTypeRepr() { offset_of_expr_type_reprs(this, result) }
   }
 
+  private Element getImmediateChildOfOffsetOfExpr(OffsetOfExpr e, int index) {
+    exists(int n, int nAttr, int nField, int nTypeRepr |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nField = nAttr + e.getNumberOfFields() and
+      nTypeRepr = nField + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        result = e.getField(index - nAttr)
+        or
+        index = nField and result = e.getTypeRepr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * An or pattern. For example:
@@ -2807,7 +4451,24 @@ module Raw {
     /**
      * Gets the `index`th pattern of this or pattern (0-based).
      */
-    Pat getPat(int index) { or_pat_pats(this, index, result) }
+    Pat getPat(int index) { or_pat_pats(this, index, result) }
+
+    /**
+     * Gets the number of patterns of this or pattern.
+     */
+    int getNumberOfPats() { result = count(int i | or_pat_pats(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfOrPat(OrPat e, int index) {
+    exists(int n, int nPat |
+      n = 0 and
+      nPat = n + e.getNumberOfPats() and
+      (
+        none()
+        or
+        result = e.getPat(index - n)
+      )
+    )
   }
 
   /**
@@ -2828,6 +4489,24 @@ module Raw {
     Pat getPat() { param_pats(this, result) }
   }
 
+  private Element getImmediateChildOfParam(Param e, int index) {
+    exists(int n, int nAttr, int nTypeRepr, int nPat |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nTypeRepr = nAttr + 1 and
+      nPat = nTypeRepr + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        index = nAttr and result = e.getTypeRepr()
+        or
+        index = nTypeRepr and result = e.getPat()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A parenthesized expression.
@@ -2845,12 +4524,32 @@ module Raw {
      */
     Attr getAttr(int index) { paren_expr_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this paren expression.
+     */
+    int getNumberOfAttrs() { result = count(int i | paren_expr_attrs(this, i, _)) }
+
     /**
      * Gets the expression of this paren expression, if it exists.
      */
     Expr getExpr() { paren_expr_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfParenExpr(ParenExpr e, int index) {
+    exists(int n, int nAttr, int nExpr |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nExpr = nAttr + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        index = nAttr and result = e.getExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A parenthesized pattern.
@@ -2870,6 +4569,18 @@ module Raw {
     Pat getPat() { paren_pat_pats(this, result) }
   }
 
+  private Element getImmediateChildOfParenPat(ParenPat e, int index) {
+    exists(int n, int nPat |
+      n = 0 and
+      nPat = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getPat()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A parenthesized type.
@@ -2889,6 +4600,18 @@ module Raw {
     TypeRepr getTypeRepr() { paren_type_repr_type_reprs(this, result) }
   }
 
+  private Element getImmediateChildOfParenTypeRepr(ParenTypeRepr e, int index) {
+    exists(int n, int nTypeRepr |
+      n = 0 and
+      nTypeRepr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getTypeRepr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A path expression or a variable access in a formatting template. See `PathExpr` and `FormatTemplateVariableAccess` for further details.
@@ -2909,6 +4632,18 @@ module Raw {
     override string toString() { result = "PathPat" }
   }
 
+  private Element getImmediateChildOfPathPat(PathPat e, int index) {
+    exists(int n, int nPath |
+      n = 0 and
+      nPath = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getPath()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A path referring to a type. For example:
@@ -2926,6 +4661,18 @@ module Raw {
     Path getPath() { path_type_repr_paths(this, result) }
   }
 
+  private Element getImmediateChildOfPathTypeRepr(PathTypeRepr e, int index) {
+    exists(int n, int nPath |
+      n = 0 and
+      nPath = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getPath()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A unary operation expression. For example:
@@ -2943,6 +4690,11 @@ module Raw {
      */
     Attr getAttr(int index) { prefix_expr_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this prefix expression.
+     */
+    int getNumberOfAttrs() { result = count(int i | prefix_expr_attrs(this, i, _)) }
+
     /**
      * Gets the expression of this prefix expression, if it exists.
      */
@@ -2954,6 +4706,21 @@ module Raw {
     string getOperatorName() { prefix_expr_operator_names(this, result) }
   }
 
+  private Element getImmediateChildOfPrefixExpr(PrefixExpr e, int index) {
+    exists(int n, int nAttr, int nExpr |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nExpr = nAttr + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        index = nAttr and result = e.getExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A pointer type.
@@ -2984,6 +4751,18 @@ module Raw {
     TypeRepr getTypeRepr() { ptr_type_repr_type_reprs(this, result) }
   }
 
+  private Element getImmediateChildOfPtrTypeRepr(PtrTypeRepr e, int index) {
+    exists(int n, int nTypeRepr |
+      n = 0 and
+      nTypeRepr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getTypeRepr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A range expression. For example:
@@ -3004,6 +4783,11 @@ module Raw {
      */
     Attr getAttr(int index) { range_expr_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this range expression.
+     */
+    int getNumberOfAttrs() { result = count(int i | range_expr_attrs(this, i, _)) }
+
     /**
      * Gets the end of this range expression, if it exists.
      */
@@ -3020,6 +4804,24 @@ module Raw {
     Expr getStart() { range_expr_starts(this, result) }
   }
 
+  private Element getImmediateChildOfRangeExpr(RangeExpr e, int index) {
+    exists(int n, int nAttr, int nEnd, int nStart |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nEnd = nAttr + 1 and
+      nStart = nEnd + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        index = nAttr and result = e.getEnd()
+        or
+        index = nEnd and result = e.getStart()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A range pattern. For example:
@@ -3050,6 +4852,21 @@ module Raw {
     Pat getStart() { range_pat_starts(this, result) }
   }
 
+  private Element getImmediateChildOfRangePat(RangePat e, int index) {
+    exists(int n, int nEnd, int nStart |
+      n = 0 and
+      nEnd = n + 1 and
+      nStart = nEnd + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getEnd()
+        or
+        index = nEnd and result = e.getStart()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A reference expression. For example:
@@ -3068,6 +4885,11 @@ module Raw {
      */
     Attr getAttr(int index) { ref_expr_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this reference expression.
+     */
+    int getNumberOfAttrs() { result = count(int i | ref_expr_attrs(this, i, _)) }
+
     /**
      * Gets the expression of this reference expression, if it exists.
      */
@@ -3089,6 +4911,21 @@ module Raw {
     predicate isRaw() { ref_expr_is_raw(this) }
   }
 
+  private Element getImmediateChildOfRefExpr(RefExpr e, int index) {
+    exists(int n, int nAttr, int nExpr |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nExpr = nAttr + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        index = nAttr and result = e.getExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A reference pattern. For example:
@@ -3113,6 +4950,18 @@ module Raw {
     Pat getPat() { ref_pat_pats(this, result) }
   }
 
+  private Element getImmediateChildOfRefPat(RefPat e, int index) {
+    exists(int n, int nPat |
+      n = 0 and
+      nPat = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getPat()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A reference type.
@@ -3143,6 +4992,21 @@ module Raw {
     TypeRepr getTypeRepr() { ref_type_repr_type_reprs(this, result) }
   }
 
+  private Element getImmediateChildOfRefTypeRepr(RefTypeRepr e, int index) {
+    exists(int n, int nLifetime, int nTypeRepr |
+      n = 0 and
+      nLifetime = n + 1 and
+      nTypeRepr = nLifetime + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getLifetime()
+        or
+        index = nLifetime and result = e.getTypeRepr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A rest pattern (`..`) in a tuple, slice, or struct pattern.
@@ -3160,6 +5024,23 @@ module Raw {
      * Gets the `index`th attr of this rest pattern (0-based).
      */
     Attr getAttr(int index) { rest_pat_attrs(this, index, result) }
+
+    /**
+     * Gets the number of attrs of this rest pattern.
+     */
+    int getNumberOfAttrs() { result = count(int i | rest_pat_attrs(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfRestPat(RestPat e, int index) {
+    exists(int n, int nAttr |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+      )
+    )
   }
 
   /**
@@ -3184,12 +5065,32 @@ module Raw {
      */
     Attr getAttr(int index) { return_expr_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this return expression.
+     */
+    int getNumberOfAttrs() { result = count(int i | return_expr_attrs(this, i, _)) }
+
     /**
      * Gets the expression of this return expression, if it exists.
      */
     Expr getExpr() { return_expr_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfReturnExpr(ReturnExpr e, int index) {
+    exists(int n, int nAttr, int nExpr |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nExpr = nAttr + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        index = nAttr and result = e.getExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A `self` parameter. For example `self` in:
@@ -3228,6 +5129,27 @@ module Raw {
     Name getName() { self_param_names(this, result) }
   }
 
+  private Element getImmediateChildOfSelfParam(SelfParam e, int index) {
+    exists(int n, int nAttr, int nTypeRepr, int nLifetime, int nName |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nTypeRepr = nAttr + 1 and
+      nLifetime = nTypeRepr + 1 and
+      nName = nLifetime + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        index = nAttr and result = e.getTypeRepr()
+        or
+        index = nTypeRepr and result = e.getLifetime()
+        or
+        index = nLifetime and result = e.getName()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A slice pattern. For example:
@@ -3246,6 +5168,23 @@ module Raw {
      * Gets the `index`th pattern of this slice pattern (0-based).
      */
     Pat getPat(int index) { slice_pat_pats(this, index, result) }
+
+    /**
+     * Gets the number of patterns of this slice pattern.
+     */
+    int getNumberOfPats() { result = count(int i | slice_pat_pats(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfSlicePat(SlicePat e, int index) {
+    exists(int n, int nPat |
+      n = 0 and
+      nPat = n + e.getNumberOfPats() and
+      (
+        none()
+        or
+        result = e.getPat(index - n)
+      )
+    )
   }
 
   /**
@@ -3267,6 +5206,18 @@ module Raw {
     TypeRepr getTypeRepr() { slice_type_repr_type_reprs(this, result) }
   }
 
+  private Element getImmediateChildOfSliceTypeRepr(SliceTypeRepr e, int index) {
+    exists(int n, int nTypeRepr |
+      n = 0 and
+      nTypeRepr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getTypeRepr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A struct expression. For example:
@@ -3288,6 +5239,21 @@ module Raw {
     }
   }
 
+  private Element getImmediateChildOfStructExpr(StructExpr e, int index) {
+    exists(int n, int nPath, int nStructExprFieldList |
+      n = 0 and
+      nPath = n + 1 and
+      nStructExprFieldList = nPath + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getPath()
+        or
+        index = nPath and result = e.getStructExprFieldList()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A list of fields in a struct declaration.
@@ -3305,6 +5271,23 @@ module Raw {
      * Gets the `index`th field of this struct field list (0-based).
      */
     StructField getField(int index) { struct_field_list_fields(this, index, result) }
+
+    /**
+     * Gets the number of fields of this struct field list.
+     */
+    int getNumberOfFields() { result = count(int i | struct_field_list_fields(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfStructFieldList(StructFieldList e, int index) {
+    exists(int n, int nField |
+      n = 0 and
+      nField = n + e.getNumberOfFields() and
+      (
+        none()
+        or
+        result = e.getField(index - n)
+      )
+    )
   }
 
   /**
@@ -3326,6 +5309,21 @@ module Raw {
     StructPatFieldList getStructPatFieldList() { struct_pat_struct_pat_field_lists(this, result) }
   }
 
+  private Element getImmediateChildOfStructPat(StructPat e, int index) {
+    exists(int n, int nPath, int nStructPatFieldList |
+      n = 0 and
+      nPath = n + 1 and
+      nStructPatFieldList = nPath + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getPath()
+        or
+        index = nPath and result = e.getStructPatFieldList()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A try expression using the `?` operator.
@@ -3344,12 +5342,32 @@ module Raw {
      */
     Attr getAttr(int index) { try_expr_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this try expression.
+     */
+    int getNumberOfAttrs() { result = count(int i | try_expr_attrs(this, i, _)) }
+
     /**
      * Gets the expression of this try expression, if it exists.
      */
     Expr getExpr() { try_expr_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfTryExpr(TryExpr e, int index) {
+    exists(int n, int nAttr, int nExpr |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nExpr = nAttr + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        index = nAttr and result = e.getExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A tuple expression. For example:
@@ -3367,10 +5385,35 @@ module Raw {
      */
     Attr getAttr(int index) { tuple_expr_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this tuple expression.
+     */
+    int getNumberOfAttrs() { result = count(int i | tuple_expr_attrs(this, i, _)) }
+
     /**
      * Gets the `index`th field of this tuple expression (0-based).
      */
     Expr getField(int index) { tuple_expr_fields(this, index, result) }
+
+    /**
+     * Gets the number of fields of this tuple expression.
+     */
+    int getNumberOfFields() { result = count(int i | tuple_expr_fields(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfTupleExpr(TupleExpr e, int index) {
+    exists(int n, int nAttr, int nField |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nField = nAttr + e.getNumberOfFields() and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        result = e.getField(index - nAttr)
+      )
+    )
   }
 
   /**
@@ -3390,6 +5433,23 @@ module Raw {
      * Gets the `index`th field of this tuple field list (0-based).
      */
     TupleField getField(int index) { tuple_field_list_fields(this, index, result) }
+
+    /**
+     * Gets the number of fields of this tuple field list.
+     */
+    int getNumberOfFields() { result = count(int i | tuple_field_list_fields(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfTupleFieldList(TupleFieldList e, int index) {
+    exists(int n, int nField |
+      n = 0 and
+      nField = n + e.getNumberOfFields() and
+      (
+        none()
+        or
+        result = e.getField(index - n)
+      )
+    )
   }
 
   /**
@@ -3407,6 +5467,23 @@ module Raw {
      * Gets the `index`th field of this tuple pattern (0-based).
      */
     Pat getField(int index) { tuple_pat_fields(this, index, result) }
+
+    /**
+     * Gets the number of fields of this tuple pattern.
+     */
+    int getNumberOfFields() { result = count(int i | tuple_pat_fields(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfTuplePat(TuplePat e, int index) {
+    exists(int n, int nField |
+      n = 0 and
+      nField = n + e.getNumberOfFields() and
+      (
+        none()
+        or
+        result = e.getField(index - n)
+      )
+    )
   }
 
   /**
@@ -3427,6 +5504,26 @@ module Raw {
      * Gets the `index`th field of this tuple struct pattern (0-based).
      */
     Pat getField(int index) { tuple_struct_pat_fields(this, index, result) }
+
+    /**
+     * Gets the number of fields of this tuple struct pattern.
+     */
+    int getNumberOfFields() { result = count(int i | tuple_struct_pat_fields(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfTupleStructPat(TupleStructPat e, int index) {
+    exists(int n, int nPath, int nField |
+      n = 0 and
+      nPath = n + 1 and
+      nField = nPath + e.getNumberOfFields() and
+      (
+        none()
+        or
+        index = n and result = e.getPath()
+        or
+        result = e.getField(index - nPath)
+      )
+    )
   }
 
   /**
@@ -3446,6 +5543,23 @@ module Raw {
      * Gets the `index`th field of this tuple type representation (0-based).
      */
     TypeRepr getField(int index) { tuple_type_repr_fields(this, index, result) }
+
+    /**
+     * Gets the number of fields of this tuple type representation.
+     */
+    int getNumberOfFields() { result = count(int i | tuple_type_repr_fields(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfTupleTypeRepr(TupleTypeRepr e, int index) {
+    exists(int n, int nField |
+      n = 0 and
+      nField = n + e.getNumberOfFields() and
+      (
+        none()
+        or
+        result = e.getField(index - n)
+      )
+    )
   }
 
   /**
@@ -3467,6 +5581,18 @@ module Raw {
     TypeRepr getTypeRepr() { type_arg_type_reprs(this, result) }
   }
 
+  private Element getImmediateChildOfTypeArg(TypeArg e, int index) {
+    exists(int n, int nTypeRepr |
+      n = 0 and
+      nTypeRepr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getTypeRepr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A type parameter in a generic parameter list.
@@ -3485,6 +5611,11 @@ module Raw {
      */
     Attr getAttr(int index) { type_param_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this type parameter.
+     */
+    int getNumberOfAttrs() { result = count(int i | type_param_attrs(this, i, _)) }
+
     /**
      * Gets the default type of this type parameter, if it exists.
      */
@@ -3501,6 +5632,27 @@ module Raw {
     TypeBoundList getTypeBoundList() { type_param_type_bound_lists(this, result) }
   }
 
+  private Element getImmediateChildOfTypeParam(TypeParam e, int index) {
+    exists(int n, int nAttr, int nDefaultType, int nName, int nTypeBoundList |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nDefaultType = nAttr + 1 and
+      nName = nDefaultType + 1 and
+      nTypeBoundList = nName + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        index = nAttr and result = e.getDefaultType()
+        or
+        index = nDefaultType and result = e.getName()
+        or
+        index = nName and result = e.getTypeBoundList()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * An underscore expression. For example:
@@ -3515,6 +5667,23 @@ module Raw {
      * Gets the `index`th attr of this underscore expression (0-based).
      */
     Attr getAttr(int index) { underscore_expr_attrs(this, index, result) }
+
+    /**
+     * Gets the number of attrs of this underscore expression.
+     */
+    int getNumberOfAttrs() { result = count(int i | underscore_expr_attrs(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfUnderscoreExpr(UnderscoreExpr e, int index) {
+    exists(int n, int nAttr |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+      )
+    )
   }
 
   /**
@@ -3535,6 +5704,11 @@ module Raw {
      */
     Attr getAttr(int index) { variant_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this variant.
+     */
+    int getNumberOfAttrs() { result = count(int i | variant_attrs(this, i, _)) }
+
     /**
      * Gets the discriminant of this variant, if it exists.
      */
@@ -3556,6 +5730,30 @@ module Raw {
     Visibility getVisibility() { variant_visibilities(this, result) }
   }
 
+  private Element getImmediateChildOfVariant(Variant e, int index) {
+    exists(int n, int nAttr, int nDiscriminant, int nFieldList, int nName, int nVisibility |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nDiscriminant = nAttr + 1 and
+      nFieldList = nDiscriminant + 1 and
+      nName = nFieldList + 1 and
+      nVisibility = nName + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        index = nAttr and result = e.getDiscriminant()
+        or
+        index = nDiscriminant and result = e.getFieldList()
+        or
+        index = nFieldList and result = e.getName()
+        or
+        index = nName and result = e.getVisibility()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A wildcard pattern. For example:
@@ -3567,6 +5765,8 @@ module Raw {
     override string toString() { result = "WildcardPat" }
   }
 
+  private Element getImmediateChildOfWildcardPat(WildcardPat e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    * A `yeet` expression. For example:
@@ -3584,12 +5784,32 @@ module Raw {
      */
     Attr getAttr(int index) { yeet_expr_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this yeet expression.
+     */
+    int getNumberOfAttrs() { result = count(int i | yeet_expr_attrs(this, i, _)) }
+
     /**
      * Gets the expression of this yeet expression, if it exists.
      */
     Expr getExpr() { yeet_expr_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfYeetExpr(YeetExpr e, int index) {
+    exists(int n, int nAttr, int nExpr |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nExpr = nAttr + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        index = nAttr and result = e.getExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A `yield` expression. For example:
@@ -3608,12 +5828,32 @@ module Raw {
      */
     Attr getAttr(int index) { yield_expr_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this yield expression.
+     */
+    int getNumberOfAttrs() { result = count(int i | yield_expr_attrs(this, i, _)) }
+
     /**
      * Gets the expression of this yield expression, if it exists.
      */
     Expr getExpr() { yield_expr_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfYieldExpr(YieldExpr e, int index) {
+    exists(int n, int nAttr, int nExpr |
+      n = 0 and
+      nAttr = n + e.getNumberOfAttrs() and
+      nExpr = nAttr + 1 and
+      (
+        none()
+        or
+        result = e.getAttr(index - n)
+        or
+        index = nAttr and result = e.getExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * An ADT (Abstract Data Type) definition, such as `Struct`, `Enum`, or `Union`.
@@ -3625,6 +5865,13 @@ module Raw {
     MacroItems getDeriveMacroExpansion(int index) {
       adt_derive_macro_expansions(this, index, result)
     }
+
+    /**
+     * Gets the number of derive macro expansions of this adt.
+     */
+    int getNumberOfDeriveMacroExpansions() {
+      result = count(int i | adt_derive_macro_expansions(this, i, _))
+    }
   }
 
   /**
@@ -3645,15 +5892,51 @@ module Raw {
      */
     AsmPiece getAsmPiece(int index) { asm_expr_asm_pieces(this, index, result) }
 
+    /**
+     * Gets the number of asm pieces of this asm expression.
+     */
+    int getNumberOfAsmPieces() { result = count(int i | asm_expr_asm_pieces(this, i, _)) }
+
     /**
      * Gets the `index`th attr of this asm expression (0-based).
      */
     Attr getAttr(int index) { asm_expr_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this asm expression.
+     */
+    int getNumberOfAttrs() { result = count(int i | asm_expr_attrs(this, i, _)) }
+
     /**
      * Gets the `index`th template of this asm expression (0-based).
      */
     Expr getTemplate(int index) { asm_expr_templates(this, index, result) }
+
+    /**
+     * Gets the number of templates of this asm expression.
+     */
+    int getNumberOfTemplates() { result = count(int i | asm_expr_templates(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfAsmExpr(AsmExpr e, int index) {
+    exists(int n, int nAttributeMacroExpansion, int nAsmPiece, int nAttr, int nTemplate |
+      n = 0 and
+      nAttributeMacroExpansion = n + 1 and
+      nAsmPiece = nAttributeMacroExpansion + e.getNumberOfAsmPieces() and
+      nAttr = nAsmPiece + e.getNumberOfAttrs() and
+      nTemplate = nAttr + e.getNumberOfTemplates() and
+      (
+        none()
+        or
+        index = n and result = e.getAttributeMacroExpansion()
+        or
+        result = e.getAsmPiece(index - nAttributeMacroExpansion)
+        or
+        result = e.getAttr(index - nAsmPiece)
+        or
+        result = e.getTemplate(index - nAttr)
+      )
+    )
   }
 
   /**
@@ -3691,6 +5974,11 @@ module Raw {
      */
     Attr getAttr(int index) { block_expr_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this block expression.
+     */
+    int getNumberOfAttrs() { result = count(int i | block_expr_attrs(this, i, _)) }
+
     /**
      * Holds if this block expression is async.
      */
@@ -3727,6 +6015,24 @@ module Raw {
     StmtList getStmtList() { block_expr_stmt_lists(this, result) }
   }
 
+  private Element getImmediateChildOfBlockExpr(BlockExpr e, int index) {
+    exists(int n, int nLabel, int nAttr, int nStmtList |
+      n = 0 and
+      nLabel = n + 1 and
+      nAttr = nLabel + e.getNumberOfAttrs() and
+      nStmtList = nAttr + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getLabel()
+        or
+        result = e.getAttr(index - nLabel)
+        or
+        index = nAttr and result = e.getStmtList()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A function call expression. For example:
@@ -3746,6 +6052,24 @@ module Raw {
     Expr getFunction() { call_expr_functions(this, result) }
   }
 
+  private Element getImmediateChildOfCallExpr(CallExpr e, int index) {
+    exists(int n, int nArgList, int nAttr, int nFunction |
+      n = 0 and
+      nArgList = n + 1 and
+      nAttr = nArgList + e.getNumberOfAttrs() and
+      nFunction = nAttr + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getArgList()
+        or
+        result = e.getAttr(index - nArgList)
+        or
+        index = nAttr and result = e.getFunction()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * An extern block containing foreign function declarations.
@@ -3770,6 +6094,11 @@ module Raw {
      */
     Attr getAttr(int index) { extern_block_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this extern block.
+     */
+    int getNumberOfAttrs() { result = count(int i | extern_block_attrs(this, i, _)) }
+
     /**
      * Gets the extern item list of this extern block, if it exists.
      */
@@ -3781,6 +6110,27 @@ module Raw {
     predicate isUnsafe() { extern_block_is_unsafe(this) }
   }
 
+  private Element getImmediateChildOfExternBlock(ExternBlock e, int index) {
+    exists(int n, int nAttributeMacroExpansion, int nAbi, int nAttr, int nExternItemList |
+      n = 0 and
+      nAttributeMacroExpansion = n + 1 and
+      nAbi = nAttributeMacroExpansion + 1 and
+      nAttr = nAbi + e.getNumberOfAttrs() and
+      nExternItemList = nAttr + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getAttributeMacroExpansion()
+        or
+        index = nAttributeMacroExpansion and result = e.getAbi()
+        or
+        result = e.getAttr(index - nAbi)
+        or
+        index = nAttr and result = e.getExternItemList()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * An extern crate declaration.
@@ -3798,6 +6148,11 @@ module Raw {
      */
     Attr getAttr(int index) { extern_crate_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this extern crate.
+     */
+    int getNumberOfAttrs() { result = count(int i | extern_crate_attrs(this, i, _)) }
+
     /**
      * Gets the identifier of this extern crate, if it exists.
      */
@@ -3814,6 +6169,32 @@ module Raw {
     Visibility getVisibility() { extern_crate_visibilities(this, result) }
   }
 
+  private Element getImmediateChildOfExternCrate(ExternCrate e, int index) {
+    exists(
+      int n, int nAttributeMacroExpansion, int nAttr, int nIdentifier, int nRename, int nVisibility
+    |
+      n = 0 and
+      nAttributeMacroExpansion = n + 1 and
+      nAttr = nAttributeMacroExpansion + e.getNumberOfAttrs() and
+      nIdentifier = nAttr + 1 and
+      nRename = nIdentifier + 1 and
+      nVisibility = nRename + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getAttributeMacroExpansion()
+        or
+        result = e.getAttr(index - nAttributeMacroExpansion)
+        or
+        index = nAttr and result = e.getIdentifier()
+        or
+        index = nIdentifier and result = e.getRename()
+        or
+        index = nRename and result = e.getVisibility()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * An item inside an extern block.
@@ -3852,6 +6233,11 @@ module Raw {
      */
     Attr getAttr(int index) { impl_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this impl.
+     */
+    int getNumberOfAttrs() { result = count(int i | impl_attrs(this, i, _)) }
+
     /**
      * Gets the generic parameter list of this impl, if it exists.
      */
@@ -3893,6 +6279,42 @@ module Raw {
     WhereClause getWhereClause() { impl_where_clauses(this, result) }
   }
 
+  private Element getImmediateChildOfImpl(Impl e, int index) {
+    exists(
+      int n, int nAttributeMacroExpansion, int nAssocItemList, int nAttr, int nGenericParamList,
+      int nSelfTy, int nTrait, int nVisibility, int nWhereClause
+    |
+      n = 0 and
+      nAttributeMacroExpansion = n + 1 and
+      nAssocItemList = nAttributeMacroExpansion + 1 and
+      nAttr = nAssocItemList + e.getNumberOfAttrs() and
+      nGenericParamList = nAttr + 1 and
+      nSelfTy = nGenericParamList + 1 and
+      nTrait = nSelfTy + 1 and
+      nVisibility = nTrait + 1 and
+      nWhereClause = nVisibility + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getAttributeMacroExpansion()
+        or
+        index = nAttributeMacroExpansion and result = e.getAssocItemList()
+        or
+        result = e.getAttr(index - nAssocItemList)
+        or
+        index = nAttr and result = e.getGenericParamList()
+        or
+        index = nGenericParamList and result = e.getSelfTy()
+        or
+        index = nSelfTy and result = e.getTrait()
+        or
+        index = nTrait and result = e.getVisibility()
+        or
+        index = nVisibility and result = e.getWhereClause()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * The base class for expressions that loop (`LoopExpr`, `ForExpr` or `WhileExpr`).
@@ -3928,6 +6350,11 @@ module Raw {
      */
     Attr getAttr(int index) { macro_def_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this macro def.
+     */
+    int getNumberOfAttrs() { result = count(int i | macro_def_attrs(this, i, _)) }
+
     /**
      * Gets the body of this macro def, if it exists.
      */
@@ -3944,6 +6371,36 @@ module Raw {
     Visibility getVisibility() { macro_def_visibilities(this, result) }
   }
 
+  private Element getImmediateChildOfMacroDef(MacroDef e, int index) {
+    exists(
+      int n, int nAttributeMacroExpansion, int nArgs, int nAttr, int nBody, int nName,
+      int nVisibility
+    |
+      n = 0 and
+      nAttributeMacroExpansion = n + 1 and
+      nArgs = nAttributeMacroExpansion + 1 and
+      nAttr = nArgs + e.getNumberOfAttrs() and
+      nBody = nAttr + 1 and
+      nName = nBody + 1 and
+      nVisibility = nName + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getAttributeMacroExpansion()
+        or
+        index = nAttributeMacroExpansion and result = e.getArgs()
+        or
+        result = e.getAttr(index - nArgs)
+        or
+        index = nAttr and result = e.getBody()
+        or
+        index = nBody and result = e.getName()
+        or
+        index = nName and result = e.getVisibility()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A macro definition using the `macro_rules!` syntax.
@@ -3963,6 +6420,11 @@ module Raw {
      */
     Attr getAttr(int index) { macro_rules_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this macro rules.
+     */
+    int getNumberOfAttrs() { result = count(int i | macro_rules_attrs(this, i, _)) }
+
     /**
      * Gets the name of this macro rules, if it exists.
      */
@@ -3979,6 +6441,32 @@ module Raw {
     Visibility getVisibility() { macro_rules_visibilities(this, result) }
   }
 
+  private Element getImmediateChildOfMacroRules(MacroRules e, int index) {
+    exists(
+      int n, int nAttributeMacroExpansion, int nAttr, int nName, int nTokenTree, int nVisibility
+    |
+      n = 0 and
+      nAttributeMacroExpansion = n + 1 and
+      nAttr = nAttributeMacroExpansion + e.getNumberOfAttrs() and
+      nName = nAttr + 1 and
+      nTokenTree = nName + 1 and
+      nVisibility = nTokenTree + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getAttributeMacroExpansion()
+        or
+        result = e.getAttr(index - nAttributeMacroExpansion)
+        or
+        index = nAttr and result = e.getName()
+        or
+        index = nName and result = e.getTokenTree()
+        or
+        index = nTokenTree and result = e.getVisibility()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A method call expression. For example:
@@ -4006,6 +6494,30 @@ module Raw {
     Expr getReceiver() { method_call_expr_receivers(this, result) }
   }
 
+  private Element getImmediateChildOfMethodCallExpr(MethodCallExpr e, int index) {
+    exists(int n, int nArgList, int nAttr, int nGenericArgList, int nIdentifier, int nReceiver |
+      n = 0 and
+      nArgList = n + 1 and
+      nAttr = nArgList + e.getNumberOfAttrs() and
+      nGenericArgList = nAttr + 1 and
+      nIdentifier = nGenericArgList + 1 and
+      nReceiver = nIdentifier + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getArgList()
+        or
+        result = e.getAttr(index - nArgList)
+        or
+        index = nAttr and result = e.getGenericArgList()
+        or
+        index = nGenericArgList and result = e.getIdentifier()
+        or
+        index = nIdentifier and result = e.getReceiver()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A module declaration. For example:
@@ -4026,6 +6538,11 @@ module Raw {
      */
     Attr getAttr(int index) { module_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this module.
+     */
+    int getNumberOfAttrs() { result = count(int i | module_attrs(this, i, _)) }
+
     /**
      * Gets the item list of this module, if it exists.
      */
@@ -4042,6 +6559,32 @@ module Raw {
     Visibility getVisibility() { module_visibilities(this, result) }
   }
 
+  private Element getImmediateChildOfModule(Module e, int index) {
+    exists(
+      int n, int nAttributeMacroExpansion, int nAttr, int nItemList, int nName, int nVisibility
+    |
+      n = 0 and
+      nAttributeMacroExpansion = n + 1 and
+      nAttr = nAttributeMacroExpansion + e.getNumberOfAttrs() and
+      nItemList = nAttr + 1 and
+      nName = nItemList + 1 and
+      nVisibility = nName + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getAttributeMacroExpansion()
+        or
+        result = e.getAttr(index - nAttributeMacroExpansion)
+        or
+        index = nAttr and result = e.getItemList()
+        or
+        index = nItemList and result = e.getName()
+        or
+        index = nName and result = e.getVisibility()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A path expression. For example:
@@ -4059,6 +6602,26 @@ module Raw {
      * Gets the `index`th attr of this path expression (0-based).
      */
     Attr getAttr(int index) { path_expr_attrs(this, index, result) }
+
+    /**
+     * Gets the number of attrs of this path expression.
+     */
+    int getNumberOfAttrs() { result = count(int i | path_expr_attrs(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfPathExpr(PathExpr e, int index) {
+    exists(int n, int nPath, int nAttr |
+      n = 0 and
+      nPath = n + 1 and
+      nAttr = nPath + e.getNumberOfAttrs() and
+      (
+        none()
+        or
+        index = n and result = e.getPath()
+        or
+        result = e.getAttr(index - nPath)
+      )
+    )
   }
 
   /**
@@ -4087,6 +6650,11 @@ module Raw {
      */
     Attr getAttr(int index) { trait_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this trait.
+     */
+    int getNumberOfAttrs() { result = count(int i | trait_attrs(this, i, _)) }
+
     /**
      * Gets the generic parameter list of this trait, if it exists.
      */
@@ -4123,6 +6691,42 @@ module Raw {
     WhereClause getWhereClause() { trait_where_clauses(this, result) }
   }
 
+  private Element getImmediateChildOfTrait(Trait e, int index) {
+    exists(
+      int n, int nAttributeMacroExpansion, int nAssocItemList, int nAttr, int nGenericParamList,
+      int nName, int nTypeBoundList, int nVisibility, int nWhereClause
+    |
+      n = 0 and
+      nAttributeMacroExpansion = n + 1 and
+      nAssocItemList = nAttributeMacroExpansion + 1 and
+      nAttr = nAssocItemList + e.getNumberOfAttrs() and
+      nGenericParamList = nAttr + 1 and
+      nName = nGenericParamList + 1 and
+      nTypeBoundList = nName + 1 and
+      nVisibility = nTypeBoundList + 1 and
+      nWhereClause = nVisibility + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getAttributeMacroExpansion()
+        or
+        index = nAttributeMacroExpansion and result = e.getAssocItemList()
+        or
+        result = e.getAttr(index - nAssocItemList)
+        or
+        index = nAttr and result = e.getGenericParamList()
+        or
+        index = nGenericParamList and result = e.getName()
+        or
+        index = nName and result = e.getTypeBoundList()
+        or
+        index = nTypeBoundList and result = e.getVisibility()
+        or
+        index = nVisibility and result = e.getWhereClause()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A trait alias.
@@ -4140,6 +6744,11 @@ module Raw {
      */
     Attr getAttr(int index) { trait_alias_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this trait alias.
+     */
+    int getNumberOfAttrs() { result = count(int i | trait_alias_attrs(this, i, _)) }
+
     /**
      * Gets the generic parameter list of this trait alias, if it exists.
      */
@@ -4166,6 +6775,39 @@ module Raw {
     WhereClause getWhereClause() { trait_alias_where_clauses(this, result) }
   }
 
+  private Element getImmediateChildOfTraitAlias(TraitAlias e, int index) {
+    exists(
+      int n, int nAttributeMacroExpansion, int nAttr, int nGenericParamList, int nName,
+      int nTypeBoundList, int nVisibility, int nWhereClause
+    |
+      n = 0 and
+      nAttributeMacroExpansion = n + 1 and
+      nAttr = nAttributeMacroExpansion + e.getNumberOfAttrs() and
+      nGenericParamList = nAttr + 1 and
+      nName = nGenericParamList + 1 and
+      nTypeBoundList = nName + 1 and
+      nVisibility = nTypeBoundList + 1 and
+      nWhereClause = nVisibility + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getAttributeMacroExpansion()
+        or
+        result = e.getAttr(index - nAttributeMacroExpansion)
+        or
+        index = nAttr and result = e.getGenericParamList()
+        or
+        index = nGenericParamList and result = e.getName()
+        or
+        index = nName and result = e.getTypeBoundList()
+        or
+        index = nTypeBoundList and result = e.getVisibility()
+        or
+        index = nVisibility and result = e.getWhereClause()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A `use` statement. For example:
@@ -4181,6 +6823,11 @@ module Raw {
      */
     Attr getAttr(int index) { use_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this use.
+     */
+    int getNumberOfAttrs() { result = count(int i | use_attrs(this, i, _)) }
+
     /**
      * Gets the use tree of this use, if it exists.
      */
@@ -4192,6 +6839,27 @@ module Raw {
     Visibility getVisibility() { use_visibilities(this, result) }
   }
 
+  private Element getImmediateChildOfUse(Use e, int index) {
+    exists(int n, int nAttributeMacroExpansion, int nAttr, int nUseTree, int nVisibility |
+      n = 0 and
+      nAttributeMacroExpansion = n + 1 and
+      nAttr = nAttributeMacroExpansion + e.getNumberOfAttrs() and
+      nUseTree = nAttr + 1 and
+      nVisibility = nUseTree + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getAttributeMacroExpansion()
+        or
+        result = e.getAttr(index - nAttributeMacroExpansion)
+        or
+        index = nAttr and result = e.getUseTree()
+        or
+        index = nUseTree and result = e.getVisibility()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A constant item declaration.
@@ -4209,6 +6877,11 @@ module Raw {
      */
     Attr getAttr(int index) { const_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this const.
+     */
+    int getNumberOfAttrs() { result = count(int i | const_attrs(this, i, _)) }
+
     /**
      * Gets the body of this const, if it exists.
      */
@@ -4258,6 +6931,42 @@ module Raw {
     predicate hasImplementation() { const_has_implementation(this) }
   }
 
+  private Element getImmediateChildOfConst(Const e, int index) {
+    exists(
+      int n, int nAttributeMacroExpansion, int nAttr, int nBody, int nGenericParamList, int nName,
+      int nTypeRepr, int nVisibility, int nWhereClause
+    |
+      n = 0 and
+      nAttributeMacroExpansion = n + 1 and
+      nAttr = nAttributeMacroExpansion + e.getNumberOfAttrs() and
+      nBody = nAttr + 1 and
+      nGenericParamList = nBody + 1 and
+      nName = nGenericParamList + 1 and
+      nTypeRepr = nName + 1 and
+      nVisibility = nTypeRepr + 1 and
+      nWhereClause = nVisibility + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getAttributeMacroExpansion()
+        or
+        result = e.getAttr(index - nAttributeMacroExpansion)
+        or
+        index = nAttr and result = e.getBody()
+        or
+        index = nBody and result = e.getGenericParamList()
+        or
+        index = nGenericParamList and result = e.getName()
+        or
+        index = nName and result = e.getTypeRepr()
+        or
+        index = nTypeRepr and result = e.getVisibility()
+        or
+        index = nVisibility and result = e.getWhereClause()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * An enum declaration.
@@ -4275,6 +6984,11 @@ module Raw {
      */
     Attr getAttr(int index) { enum_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this enum.
+     */
+    int getNumberOfAttrs() { result = count(int i | enum_attrs(this, i, _)) }
+
     /**
      * Gets the generic parameter list of this enum, if it exists.
      */
@@ -4301,6 +7015,42 @@ module Raw {
     WhereClause getWhereClause() { enum_where_clauses(this, result) }
   }
 
+  private Element getImmediateChildOfEnum(Enum e, int index) {
+    exists(
+      int n, int nAttributeMacroExpansion, int nDeriveMacroExpansion, int nAttr,
+      int nGenericParamList, int nName, int nVariantList, int nVisibility, int nWhereClause
+    |
+      n = 0 and
+      nAttributeMacroExpansion = n + 1 and
+      nDeriveMacroExpansion = nAttributeMacroExpansion + e.getNumberOfDeriveMacroExpansions() and
+      nAttr = nDeriveMacroExpansion + e.getNumberOfAttrs() and
+      nGenericParamList = nAttr + 1 and
+      nName = nGenericParamList + 1 and
+      nVariantList = nName + 1 and
+      nVisibility = nVariantList + 1 and
+      nWhereClause = nVisibility + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getAttributeMacroExpansion()
+        or
+        result = e.getDeriveMacroExpansion(index - nAttributeMacroExpansion)
+        or
+        result = e.getAttr(index - nDeriveMacroExpansion)
+        or
+        index = nAttr and result = e.getGenericParamList()
+        or
+        index = nGenericParamList and result = e.getName()
+        or
+        index = nName and result = e.getVariantList()
+        or
+        index = nVariantList and result = e.getVisibility()
+        or
+        index = nVisibility and result = e.getWhereClause()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A for loop expression.
@@ -4320,6 +7070,11 @@ module Raw {
      */
     Attr getAttr(int index) { for_expr_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this for expression.
+     */
+    int getNumberOfAttrs() { result = count(int i | for_expr_attrs(this, i, _)) }
+
     /**
      * Gets the iterable of this for expression, if it exists.
      */
@@ -4331,6 +7086,30 @@ module Raw {
     Pat getPat() { for_expr_pats(this, result) }
   }
 
+  private Element getImmediateChildOfForExpr(ForExpr e, int index) {
+    exists(int n, int nLabel, int nLoopBody, int nAttr, int nIterable, int nPat |
+      n = 0 and
+      nLabel = n + 1 and
+      nLoopBody = nLabel + 1 and
+      nAttr = nLoopBody + e.getNumberOfAttrs() and
+      nIterable = nAttr + 1 and
+      nPat = nIterable + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getLabel()
+        or
+        index = nLabel and result = e.getLoopBody()
+        or
+        result = e.getAttr(index - nLoopBody)
+        or
+        index = nAttr and result = e.getIterable()
+        or
+        index = nIterable and result = e.getPat()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A function declaration. For example
@@ -4416,6 +7195,48 @@ module Raw {
     predicate hasImplementation() { function_has_implementation(this) }
   }
 
+  private Element getImmediateChildOfFunction(Function e, int index) {
+    exists(
+      int n, int nAttributeMacroExpansion, int nParamList, int nAttr, int nAbi, int nFunctionBody,
+      int nGenericParamList, int nName, int nRetType, int nVisibility, int nWhereClause
+    |
+      n = 0 and
+      nAttributeMacroExpansion = n + 1 and
+      nParamList = nAttributeMacroExpansion + 1 and
+      nAttr = nParamList + e.getNumberOfAttrs() and
+      nAbi = nAttr + 1 and
+      nFunctionBody = nAbi + 1 and
+      nGenericParamList = nFunctionBody + 1 and
+      nName = nGenericParamList + 1 and
+      nRetType = nName + 1 and
+      nVisibility = nRetType + 1 and
+      nWhereClause = nVisibility + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getAttributeMacroExpansion()
+        or
+        index = nAttributeMacroExpansion and result = e.getParamList()
+        or
+        result = e.getAttr(index - nParamList)
+        or
+        index = nAttr and result = e.getAbi()
+        or
+        index = nAbi and result = e.getFunctionBody()
+        or
+        index = nFunctionBody and result = e.getGenericParamList()
+        or
+        index = nGenericParamList and result = e.getName()
+        or
+        index = nName and result = e.getRetType()
+        or
+        index = nRetType and result = e.getVisibility()
+        or
+        index = nVisibility and result = e.getWhereClause()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A loop expression. For example:
@@ -4448,6 +7269,29 @@ module Raw {
      * Gets the `index`th attr of this loop expression (0-based).
      */
     Attr getAttr(int index) { loop_expr_attrs(this, index, result) }
+
+    /**
+     * Gets the number of attrs of this loop expression.
+     */
+    int getNumberOfAttrs() { result = count(int i | loop_expr_attrs(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfLoopExpr(LoopExpr e, int index) {
+    exists(int n, int nLabel, int nLoopBody, int nAttr |
+      n = 0 and
+      nLabel = n + 1 and
+      nLoopBody = nLabel + 1 and
+      nAttr = nLoopBody + e.getNumberOfAttrs() and
+      (
+        none()
+        or
+        index = n and result = e.getLabel()
+        or
+        index = nLabel and result = e.getLoopBody()
+        or
+        result = e.getAttr(index - nLoopBody)
+      )
+    )
   }
 
   /**
@@ -4467,6 +7311,11 @@ module Raw {
      */
     Attr getAttr(int index) { macro_call_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this macro call.
+     */
+    int getNumberOfAttrs() { result = count(int i | macro_call_attrs(this, i, _)) }
+
     /**
      * Gets the path of this macro call, if it exists.
      */
@@ -4483,6 +7332,33 @@ module Raw {
     AstNode getMacroCallExpansion() { macro_call_macro_call_expansions(this, result) }
   }
 
+  private Element getImmediateChildOfMacroCall(MacroCall e, int index) {
+    exists(
+      int n, int nAttributeMacroExpansion, int nAttr, int nPath, int nTokenTree,
+      int nMacroCallExpansion
+    |
+      n = 0 and
+      nAttributeMacroExpansion = n + 1 and
+      nAttr = nAttributeMacroExpansion + e.getNumberOfAttrs() and
+      nPath = nAttr + 1 and
+      nTokenTree = nPath + 1 and
+      nMacroCallExpansion = nTokenTree + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getAttributeMacroExpansion()
+        or
+        result = e.getAttr(index - nAttributeMacroExpansion)
+        or
+        index = nAttr and result = e.getPath()
+        or
+        index = nPath and result = e.getTokenTree()
+        or
+        index = nTokenTree and result = e.getMacroCallExpansion()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A static item declaration.
@@ -4500,6 +7376,11 @@ module Raw {
      */
     Attr getAttr(int index) { static_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this static.
+     */
+    int getNumberOfAttrs() { result = count(int i | static_attrs(this, i, _)) }
+
     /**
      * Gets the body of this static, if it exists.
      */
@@ -4536,6 +7417,36 @@ module Raw {
     Visibility getVisibility() { static_visibilities(this, result) }
   }
 
+  private Element getImmediateChildOfStatic(Static e, int index) {
+    exists(
+      int n, int nAttributeMacroExpansion, int nAttr, int nBody, int nName, int nTypeRepr,
+      int nVisibility
+    |
+      n = 0 and
+      nAttributeMacroExpansion = n + 1 and
+      nAttr = nAttributeMacroExpansion + e.getNumberOfAttrs() and
+      nBody = nAttr + 1 and
+      nName = nBody + 1 and
+      nTypeRepr = nName + 1 and
+      nVisibility = nTypeRepr + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getAttributeMacroExpansion()
+        or
+        result = e.getAttr(index - nAttributeMacroExpansion)
+        or
+        index = nAttr and result = e.getBody()
+        or
+        index = nBody and result = e.getName()
+        or
+        index = nName and result = e.getTypeRepr()
+        or
+        index = nTypeRepr and result = e.getVisibility()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A Struct. For example:
@@ -4554,6 +7465,11 @@ module Raw {
      */
     Attr getAttr(int index) { struct_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this struct.
+     */
+    int getNumberOfAttrs() { result = count(int i | struct_attrs(this, i, _)) }
+
     /**
      * Gets the field list of this struct, if it exists.
      */
@@ -4580,6 +7496,42 @@ module Raw {
     WhereClause getWhereClause() { struct_where_clauses(this, result) }
   }
 
+  private Element getImmediateChildOfStruct(Struct e, int index) {
+    exists(
+      int n, int nAttributeMacroExpansion, int nDeriveMacroExpansion, int nAttr, int nFieldList,
+      int nGenericParamList, int nName, int nVisibility, int nWhereClause
+    |
+      n = 0 and
+      nAttributeMacroExpansion = n + 1 and
+      nDeriveMacroExpansion = nAttributeMacroExpansion + e.getNumberOfDeriveMacroExpansions() and
+      nAttr = nDeriveMacroExpansion + e.getNumberOfAttrs() and
+      nFieldList = nAttr + 1 and
+      nGenericParamList = nFieldList + 1 and
+      nName = nGenericParamList + 1 and
+      nVisibility = nName + 1 and
+      nWhereClause = nVisibility + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getAttributeMacroExpansion()
+        or
+        result = e.getDeriveMacroExpansion(index - nAttributeMacroExpansion)
+        or
+        result = e.getAttr(index - nDeriveMacroExpansion)
+        or
+        index = nAttr and result = e.getFieldList()
+        or
+        index = nFieldList and result = e.getGenericParamList()
+        or
+        index = nGenericParamList and result = e.getName()
+        or
+        index = nName and result = e.getVisibility()
+        or
+        index = nVisibility and result = e.getWhereClause()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A type alias. For example:
@@ -4600,6 +7552,11 @@ module Raw {
      */
     Attr getAttr(int index) { type_alias_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this type alias.
+     */
+    int getNumberOfAttrs() { result = count(int i | type_alias_attrs(this, i, _)) }
+
     /**
      * Gets the generic parameter list of this type alias, if it exists.
      */
@@ -4636,6 +7593,42 @@ module Raw {
     WhereClause getWhereClause() { type_alias_where_clauses(this, result) }
   }
 
+  private Element getImmediateChildOfTypeAlias(TypeAlias e, int index) {
+    exists(
+      int n, int nAttributeMacroExpansion, int nAttr, int nGenericParamList, int nName,
+      int nTypeRepr, int nTypeBoundList, int nVisibility, int nWhereClause
+    |
+      n = 0 and
+      nAttributeMacroExpansion = n + 1 and
+      nAttr = nAttributeMacroExpansion + e.getNumberOfAttrs() and
+      nGenericParamList = nAttr + 1 and
+      nName = nGenericParamList + 1 and
+      nTypeRepr = nName + 1 and
+      nTypeBoundList = nTypeRepr + 1 and
+      nVisibility = nTypeBoundList + 1 and
+      nWhereClause = nVisibility + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getAttributeMacroExpansion()
+        or
+        result = e.getAttr(index - nAttributeMacroExpansion)
+        or
+        index = nAttr and result = e.getGenericParamList()
+        or
+        index = nGenericParamList and result = e.getName()
+        or
+        index = nName and result = e.getTypeRepr()
+        or
+        index = nTypeRepr and result = e.getTypeBoundList()
+        or
+        index = nTypeBoundList and result = e.getVisibility()
+        or
+        index = nVisibility and result = e.getWhereClause()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A union declaration.
@@ -4653,6 +7646,11 @@ module Raw {
      */
     Attr getAttr(int index) { union_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this union.
+     */
+    int getNumberOfAttrs() { result = count(int i | union_attrs(this, i, _)) }
+
     /**
      * Gets the generic parameter list of this union, if it exists.
      */
@@ -4679,6 +7677,42 @@ module Raw {
     WhereClause getWhereClause() { union_where_clauses(this, result) }
   }
 
+  private Element getImmediateChildOfUnion(Union e, int index) {
+    exists(
+      int n, int nAttributeMacroExpansion, int nDeriveMacroExpansion, int nAttr,
+      int nGenericParamList, int nName, int nStructFieldList, int nVisibility, int nWhereClause
+    |
+      n = 0 and
+      nAttributeMacroExpansion = n + 1 and
+      nDeriveMacroExpansion = nAttributeMacroExpansion + e.getNumberOfDeriveMacroExpansions() and
+      nAttr = nDeriveMacroExpansion + e.getNumberOfAttrs() and
+      nGenericParamList = nAttr + 1 and
+      nName = nGenericParamList + 1 and
+      nStructFieldList = nName + 1 and
+      nVisibility = nStructFieldList + 1 and
+      nWhereClause = nVisibility + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getAttributeMacroExpansion()
+        or
+        result = e.getDeriveMacroExpansion(index - nAttributeMacroExpansion)
+        or
+        result = e.getAttr(index - nDeriveMacroExpansion)
+        or
+        index = nAttr and result = e.getGenericParamList()
+        or
+        index = nGenericParamList and result = e.getName()
+        or
+        index = nName and result = e.getStructFieldList()
+        or
+        index = nStructFieldList and result = e.getVisibility()
+        or
+        index = nVisibility and result = e.getWhereClause()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A while loop expression.
@@ -4698,9 +7732,365 @@ module Raw {
      */
     Attr getAttr(int index) { while_expr_attrs(this, index, result) }
 
+    /**
+     * Gets the number of attrs of this while expression.
+     */
+    int getNumberOfAttrs() { result = count(int i | while_expr_attrs(this, i, _)) }
+
     /**
      * Gets the condition of this while expression, if it exists.
      */
     Expr getCondition() { while_expr_conditions(this, result) }
   }
+
+  private Element getImmediateChildOfWhileExpr(WhileExpr e, int index) {
+    exists(int n, int nLabel, int nLoopBody, int nAttr, int nCondition |
+      n = 0 and
+      nLabel = n + 1 and
+      nLoopBody = nLabel + 1 and
+      nAttr = nLoopBody + e.getNumberOfAttrs() and
+      nCondition = nAttr + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getLabel()
+        or
+        index = nLabel and result = e.getLoopBody()
+        or
+        result = e.getAttr(index - nLoopBody)
+        or
+        index = nAttr and result = e.getCondition()
+      )
+    )
+  }
+
+  /**
+   * Gets the immediate child indexed at `index`. Indexes are not guaranteed to be contiguous, but are guaranteed to be distinct.
+   */
+  pragma[nomagic]
+  Element getImmediateChild(Element e, int index) {
+    // why does this look more complicated than it should?
+    // * none() simplifies generation, as we can append `or ...` without a special case for the first item
+    none()
+    or
+    result = getImmediateChildOfExtractorStep(e, index)
+    or
+    result = getImmediateChildOfNamedCrate(e, index)
+    or
+    result = getImmediateChildOfCrate(e, index)
+    or
+    result = getImmediateChildOfMissing(e, index)
+    or
+    result = getImmediateChildOfUnimplemented(e, index)
+    or
+    result = getImmediateChildOfAbi(e, index)
+    or
+    result = getImmediateChildOfArgList(e, index)
+    or
+    result = getImmediateChildOfAsmDirSpec(e, index)
+    or
+    result = getImmediateChildOfAsmOperandExpr(e, index)
+    or
+    result = getImmediateChildOfAsmOption(e, index)
+    or
+    result = getImmediateChildOfAsmRegSpec(e, index)
+    or
+    result = getImmediateChildOfAssocItemList(e, index)
+    or
+    result = getImmediateChildOfAttr(e, index)
+    or
+    result = getImmediateChildOfExternItemList(e, index)
+    or
+    result = getImmediateChildOfForBinder(e, index)
+    or
+    result = getImmediateChildOfFormatArgsArg(e, index)
+    or
+    result = getImmediateChildOfGenericArgList(e, index)
+    or
+    result = getImmediateChildOfGenericParamList(e, index)
+    or
+    result = getImmediateChildOfItemList(e, index)
+    or
+    result = getImmediateChildOfLabel(e, index)
+    or
+    result = getImmediateChildOfLetElse(e, index)
+    or
+    result = getImmediateChildOfMacroItems(e, index)
+    or
+    result = getImmediateChildOfMatchArm(e, index)
+    or
+    result = getImmediateChildOfMatchArmList(e, index)
+    or
+    result = getImmediateChildOfMatchGuard(e, index)
+    or
+    result = getImmediateChildOfMeta(e, index)
+    or
+    result = getImmediateChildOfName(e, index)
+    or
+    result = getImmediateChildOfParamList(e, index)
+    or
+    result = getImmediateChildOfParenthesizedArgList(e, index)
+    or
+    result = getImmediateChildOfPath(e, index)
+    or
+    result = getImmediateChildOfPathSegment(e, index)
+    or
+    result = getImmediateChildOfRename(e, index)
+    or
+    result = getImmediateChildOfRetTypeRepr(e, index)
+    or
+    result = getImmediateChildOfReturnTypeSyntax(e, index)
+    or
+    result = getImmediateChildOfSourceFile(e, index)
+    or
+    result = getImmediateChildOfStmtList(e, index)
+    or
+    result = getImmediateChildOfStructExprField(e, index)
+    or
+    result = getImmediateChildOfStructExprFieldList(e, index)
+    or
+    result = getImmediateChildOfStructField(e, index)
+    or
+    result = getImmediateChildOfStructPatField(e, index)
+    or
+    result = getImmediateChildOfStructPatFieldList(e, index)
+    or
+    result = getImmediateChildOfTokenTree(e, index)
+    or
+    result = getImmediateChildOfTupleField(e, index)
+    or
+    result = getImmediateChildOfTypeBound(e, index)
+    or
+    result = getImmediateChildOfTypeBoundList(e, index)
+    or
+    result = getImmediateChildOfUseBoundGenericArgs(e, index)
+    or
+    result = getImmediateChildOfUseTree(e, index)
+    or
+    result = getImmediateChildOfUseTreeList(e, index)
+    or
+    result = getImmediateChildOfVariantList(e, index)
+    or
+    result = getImmediateChildOfVisibility(e, index)
+    or
+    result = getImmediateChildOfWhereClause(e, index)
+    or
+    result = getImmediateChildOfWherePred(e, index)
+    or
+    result = getImmediateChildOfArrayExprInternal(e, index)
+    or
+    result = getImmediateChildOfArrayTypeRepr(e, index)
+    or
+    result = getImmediateChildOfAsmClobberAbi(e, index)
+    or
+    result = getImmediateChildOfAsmConst(e, index)
+    or
+    result = getImmediateChildOfAsmLabel(e, index)
+    or
+    result = getImmediateChildOfAsmOperandNamed(e, index)
+    or
+    result = getImmediateChildOfAsmOptionsList(e, index)
+    or
+    result = getImmediateChildOfAsmRegOperand(e, index)
+    or
+    result = getImmediateChildOfAsmSym(e, index)
+    or
+    result = getImmediateChildOfAssocTypeArg(e, index)
+    or
+    result = getImmediateChildOfAwaitExpr(e, index)
+    or
+    result = getImmediateChildOfBecomeExpr(e, index)
+    or
+    result = getImmediateChildOfBinaryExpr(e, index)
+    or
+    result = getImmediateChildOfBoxPat(e, index)
+    or
+    result = getImmediateChildOfBreakExpr(e, index)
+    or
+    result = getImmediateChildOfCastExpr(e, index)
+    or
+    result = getImmediateChildOfClosureExpr(e, index)
+    or
+    result = getImmediateChildOfComment(e, index)
+    or
+    result = getImmediateChildOfConstArg(e, index)
+    or
+    result = getImmediateChildOfConstBlockPat(e, index)
+    or
+    result = getImmediateChildOfConstParam(e, index)
+    or
+    result = getImmediateChildOfContinueExpr(e, index)
+    or
+    result = getImmediateChildOfDynTraitTypeRepr(e, index)
+    or
+    result = getImmediateChildOfExprStmt(e, index)
+    or
+    result = getImmediateChildOfFieldExpr(e, index)
+    or
+    result = getImmediateChildOfFnPtrTypeRepr(e, index)
+    or
+    result = getImmediateChildOfForTypeRepr(e, index)
+    or
+    result = getImmediateChildOfFormatArgsExpr(e, index)
+    or
+    result = getImmediateChildOfIdentPat(e, index)
+    or
+    result = getImmediateChildOfIfExpr(e, index)
+    or
+    result = getImmediateChildOfImplTraitTypeRepr(e, index)
+    or
+    result = getImmediateChildOfIndexExpr(e, index)
+    or
+    result = getImmediateChildOfInferTypeRepr(e, index)
+    or
+    result = getImmediateChildOfLetExpr(e, index)
+    or
+    result = getImmediateChildOfLetStmt(e, index)
+    or
+    result = getImmediateChildOfLifetime(e, index)
+    or
+    result = getImmediateChildOfLifetimeArg(e, index)
+    or
+    result = getImmediateChildOfLifetimeParam(e, index)
+    or
+    result = getImmediateChildOfLiteralExpr(e, index)
+    or
+    result = getImmediateChildOfLiteralPat(e, index)
+    or
+    result = getImmediateChildOfMacroBlockExpr(e, index)
+    or
+    result = getImmediateChildOfMacroExpr(e, index)
+    or
+    result = getImmediateChildOfMacroPat(e, index)
+    or
+    result = getImmediateChildOfMacroTypeRepr(e, index)
+    or
+    result = getImmediateChildOfMatchExpr(e, index)
+    or
+    result = getImmediateChildOfNameRef(e, index)
+    or
+    result = getImmediateChildOfNeverTypeRepr(e, index)
+    or
+    result = getImmediateChildOfOffsetOfExpr(e, index)
+    or
+    result = getImmediateChildOfOrPat(e, index)
+    or
+    result = getImmediateChildOfParam(e, index)
+    or
+    result = getImmediateChildOfParenExpr(e, index)
+    or
+    result = getImmediateChildOfParenPat(e, index)
+    or
+    result = getImmediateChildOfParenTypeRepr(e, index)
+    or
+    result = getImmediateChildOfPathPat(e, index)
+    or
+    result = getImmediateChildOfPathTypeRepr(e, index)
+    or
+    result = getImmediateChildOfPrefixExpr(e, index)
+    or
+    result = getImmediateChildOfPtrTypeRepr(e, index)
+    or
+    result = getImmediateChildOfRangeExpr(e, index)
+    or
+    result = getImmediateChildOfRangePat(e, index)
+    or
+    result = getImmediateChildOfRefExpr(e, index)
+    or
+    result = getImmediateChildOfRefPat(e, index)
+    or
+    result = getImmediateChildOfRefTypeRepr(e, index)
+    or
+    result = getImmediateChildOfRestPat(e, index)
+    or
+    result = getImmediateChildOfReturnExpr(e, index)
+    or
+    result = getImmediateChildOfSelfParam(e, index)
+    or
+    result = getImmediateChildOfSlicePat(e, index)
+    or
+    result = getImmediateChildOfSliceTypeRepr(e, index)
+    or
+    result = getImmediateChildOfStructExpr(e, index)
+    or
+    result = getImmediateChildOfStructFieldList(e, index)
+    or
+    result = getImmediateChildOfStructPat(e, index)
+    or
+    result = getImmediateChildOfTryExpr(e, index)
+    or
+    result = getImmediateChildOfTupleExpr(e, index)
+    or
+    result = getImmediateChildOfTupleFieldList(e, index)
+    or
+    result = getImmediateChildOfTuplePat(e, index)
+    or
+    result = getImmediateChildOfTupleStructPat(e, index)
+    or
+    result = getImmediateChildOfTupleTypeRepr(e, index)
+    or
+    result = getImmediateChildOfTypeArg(e, index)
+    or
+    result = getImmediateChildOfTypeParam(e, index)
+    or
+    result = getImmediateChildOfUnderscoreExpr(e, index)
+    or
+    result = getImmediateChildOfVariant(e, index)
+    or
+    result = getImmediateChildOfWildcardPat(e, index)
+    or
+    result = getImmediateChildOfYeetExpr(e, index)
+    or
+    result = getImmediateChildOfYieldExpr(e, index)
+    or
+    result = getImmediateChildOfAsmExpr(e, index)
+    or
+    result = getImmediateChildOfBlockExpr(e, index)
+    or
+    result = getImmediateChildOfCallExpr(e, index)
+    or
+    result = getImmediateChildOfExternBlock(e, index)
+    or
+    result = getImmediateChildOfExternCrate(e, index)
+    or
+    result = getImmediateChildOfImpl(e, index)
+    or
+    result = getImmediateChildOfMacroDef(e, index)
+    or
+    result = getImmediateChildOfMacroRules(e, index)
+    or
+    result = getImmediateChildOfMethodCallExpr(e, index)
+    or
+    result = getImmediateChildOfModule(e, index)
+    or
+    result = getImmediateChildOfPathExpr(e, index)
+    or
+    result = getImmediateChildOfTrait(e, index)
+    or
+    result = getImmediateChildOfTraitAlias(e, index)
+    or
+    result = getImmediateChildOfUse(e, index)
+    or
+    result = getImmediateChildOfConst(e, index)
+    or
+    result = getImmediateChildOfEnum(e, index)
+    or
+    result = getImmediateChildOfForExpr(e, index)
+    or
+    result = getImmediateChildOfFunction(e, index)
+    or
+    result = getImmediateChildOfLoopExpr(e, index)
+    or
+    result = getImmediateChildOfMacroCall(e, index)
+    or
+    result = getImmediateChildOfStatic(e, index)
+    or
+    result = getImmediateChildOfStruct(e, index)
+    or
+    result = getImmediateChildOfTypeAlias(e, index)
+    or
+    result = getImmediateChildOfUnion(e, index)
+    or
+    result = getImmediateChildOfWhileExpr(e, index)
+  }
 }
diff --git a/rust/ql/lib/codeql/rust/elements/internal/generated/Synth.qll b/rust/ql/lib/codeql/rust/elements/internal/generated/Synth.qll
index 9ed7961f63ce..74b4a14460a0 100644
--- a/rust/ql/lib/codeql/rust/elements/internal/generated/Synth.qll
+++ b/rust/ql/lib/codeql/rust/elements/internal/generated/Synth.qll
@@ -845,18 +845,36 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
+   * Gets the parent of synthetic element `e`.
+   */
+  Raw::Element getSynthParent(TElement e) {
+    none()
+    or
+    e = TFormat(result, _, _, _)
+    or
+    e = TFormatArgument(result, _, _, _, _, _)
+    or
+    e = TFormatTemplateVariableAccess(result, _, _)
+  }
+
+  /**
+   * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TAbi`, if possible.
    */
   TAbi convertAbiFromRaw(Raw::Element e) { result = TAbi(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TArgList`, if possible.
    */
   TArgList convertArgListFromRaw(Raw::Element e) { result = TArgList(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TArrayExprInternal`, if possible.
    */
   TArrayExprInternal convertArrayExprInternalFromRaw(Raw::Element e) {
@@ -865,306 +883,357 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TArrayListExpr`, if possible.
    */
   TArrayListExpr convertArrayListExprFromRaw(Raw::Element e) { result = TArrayListExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TArrayRepeatExpr`, if possible.
    */
   TArrayRepeatExpr convertArrayRepeatExprFromRaw(Raw::Element e) { result = TArrayRepeatExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TArrayTypeRepr`, if possible.
    */
   TArrayTypeRepr convertArrayTypeReprFromRaw(Raw::Element e) { result = TArrayTypeRepr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TAsmClobberAbi`, if possible.
    */
   TAsmClobberAbi convertAsmClobberAbiFromRaw(Raw::Element e) { result = TAsmClobberAbi(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TAsmConst`, if possible.
    */
   TAsmConst convertAsmConstFromRaw(Raw::Element e) { result = TAsmConst(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TAsmDirSpec`, if possible.
    */
   TAsmDirSpec convertAsmDirSpecFromRaw(Raw::Element e) { result = TAsmDirSpec(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TAsmExpr`, if possible.
    */
   TAsmExpr convertAsmExprFromRaw(Raw::Element e) { result = TAsmExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TAsmLabel`, if possible.
    */
   TAsmLabel convertAsmLabelFromRaw(Raw::Element e) { result = TAsmLabel(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TAsmOperandExpr`, if possible.
    */
   TAsmOperandExpr convertAsmOperandExprFromRaw(Raw::Element e) { result = TAsmOperandExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TAsmOperandNamed`, if possible.
    */
   TAsmOperandNamed convertAsmOperandNamedFromRaw(Raw::Element e) { result = TAsmOperandNamed(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TAsmOption`, if possible.
    */
   TAsmOption convertAsmOptionFromRaw(Raw::Element e) { result = TAsmOption(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TAsmOptionsList`, if possible.
    */
   TAsmOptionsList convertAsmOptionsListFromRaw(Raw::Element e) { result = TAsmOptionsList(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TAsmRegOperand`, if possible.
    */
   TAsmRegOperand convertAsmRegOperandFromRaw(Raw::Element e) { result = TAsmRegOperand(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TAsmRegSpec`, if possible.
    */
   TAsmRegSpec convertAsmRegSpecFromRaw(Raw::Element e) { result = TAsmRegSpec(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TAsmSym`, if possible.
    */
   TAsmSym convertAsmSymFromRaw(Raw::Element e) { result = TAsmSym(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TAssocItemList`, if possible.
    */
   TAssocItemList convertAssocItemListFromRaw(Raw::Element e) { result = TAssocItemList(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TAssocTypeArg`, if possible.
    */
   TAssocTypeArg convertAssocTypeArgFromRaw(Raw::Element e) { result = TAssocTypeArg(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TAttr`, if possible.
    */
   TAttr convertAttrFromRaw(Raw::Element e) { result = TAttr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TAwaitExpr`, if possible.
    */
   TAwaitExpr convertAwaitExprFromRaw(Raw::Element e) { result = TAwaitExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TBecomeExpr`, if possible.
    */
   TBecomeExpr convertBecomeExprFromRaw(Raw::Element e) { result = TBecomeExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TBinaryExpr`, if possible.
    */
   TBinaryExpr convertBinaryExprFromRaw(Raw::Element e) { result = TBinaryExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TBlockExpr`, if possible.
    */
   TBlockExpr convertBlockExprFromRaw(Raw::Element e) { result = TBlockExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TBoxPat`, if possible.
    */
   TBoxPat convertBoxPatFromRaw(Raw::Element e) { result = TBoxPat(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TBreakExpr`, if possible.
    */
   TBreakExpr convertBreakExprFromRaw(Raw::Element e) { result = TBreakExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TCallExpr`, if possible.
    */
   TCallExpr convertCallExprFromRaw(Raw::Element e) { result = TCallExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TCastExpr`, if possible.
    */
   TCastExpr convertCastExprFromRaw(Raw::Element e) { result = TCastExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TClosureExpr`, if possible.
    */
   TClosureExpr convertClosureExprFromRaw(Raw::Element e) { result = TClosureExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TComment`, if possible.
    */
   TComment convertCommentFromRaw(Raw::Element e) { result = TComment(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TConst`, if possible.
    */
   TConst convertConstFromRaw(Raw::Element e) { result = TConst(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TConstArg`, if possible.
    */
   TConstArg convertConstArgFromRaw(Raw::Element e) { result = TConstArg(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TConstBlockPat`, if possible.
    */
   TConstBlockPat convertConstBlockPatFromRaw(Raw::Element e) { result = TConstBlockPat(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TConstParam`, if possible.
    */
   TConstParam convertConstParamFromRaw(Raw::Element e) { result = TConstParam(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TContinueExpr`, if possible.
    */
   TContinueExpr convertContinueExprFromRaw(Raw::Element e) { result = TContinueExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TCrate`, if possible.
    */
   TCrate convertCrateFromRaw(Raw::Element e) { result = TCrate(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TDynTraitTypeRepr`, if possible.
    */
   TDynTraitTypeRepr convertDynTraitTypeReprFromRaw(Raw::Element e) { result = TDynTraitTypeRepr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TEnum`, if possible.
    */
   TEnum convertEnumFromRaw(Raw::Element e) { result = TEnum(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TExprStmt`, if possible.
    */
   TExprStmt convertExprStmtFromRaw(Raw::Element e) { result = TExprStmt(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TExternBlock`, if possible.
    */
   TExternBlock convertExternBlockFromRaw(Raw::Element e) { result = TExternBlock(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TExternCrate`, if possible.
    */
   TExternCrate convertExternCrateFromRaw(Raw::Element e) { result = TExternCrate(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TExternItemList`, if possible.
    */
   TExternItemList convertExternItemListFromRaw(Raw::Element e) { result = TExternItemList(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TExtractorStep`, if possible.
    */
   TExtractorStep convertExtractorStepFromRaw(Raw::Element e) { result = TExtractorStep(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TFieldExpr`, if possible.
    */
   TFieldExpr convertFieldExprFromRaw(Raw::Element e) { result = TFieldExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TFnPtrTypeRepr`, if possible.
    */
   TFnPtrTypeRepr convertFnPtrTypeReprFromRaw(Raw::Element e) { result = TFnPtrTypeRepr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TForBinder`, if possible.
    */
   TForBinder convertForBinderFromRaw(Raw::Element e) { result = TForBinder(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TForExpr`, if possible.
    */
   TForExpr convertForExprFromRaw(Raw::Element e) { result = TForExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TForTypeRepr`, if possible.
    */
   TForTypeRepr convertForTypeReprFromRaw(Raw::Element e) { result = TForTypeRepr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TFormat`, if possible.
    */
   TFormat convertFormatFromRaw(Raw::Element e) { none() }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TFormatArgsArg`, if possible.
    */
   TFormatArgsArg convertFormatArgsArgFromRaw(Raw::Element e) { result = TFormatArgsArg(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TFormatArgsExpr`, if possible.
    */
   TFormatArgsExpr convertFormatArgsExprFromRaw(Raw::Element e) { result = TFormatArgsExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TFormatArgument`, if possible.
    */
   TFormatArgument convertFormatArgumentFromRaw(Raw::Element e) { none() }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TFormatTemplateVariableAccess`, if possible.
    */
   TFormatTemplateVariableAccess convertFormatTemplateVariableAccessFromRaw(Raw::Element e) {
@@ -1173,42 +1242,49 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TFunction`, if possible.
    */
   TFunction convertFunctionFromRaw(Raw::Element e) { result = TFunction(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TGenericArgList`, if possible.
    */
   TGenericArgList convertGenericArgListFromRaw(Raw::Element e) { result = TGenericArgList(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TGenericParamList`, if possible.
    */
   TGenericParamList convertGenericParamListFromRaw(Raw::Element e) { result = TGenericParamList(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TIdentPat`, if possible.
    */
   TIdentPat convertIdentPatFromRaw(Raw::Element e) { result = TIdentPat(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TIfExpr`, if possible.
    */
   TIfExpr convertIfExprFromRaw(Raw::Element e) { result = TIfExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TImpl`, if possible.
    */
   TImpl convertImplFromRaw(Raw::Element e) { result = TImpl(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TImplTraitTypeRepr`, if possible.
    */
   TImplTraitTypeRepr convertImplTraitTypeReprFromRaw(Raw::Element e) {
@@ -1217,246 +1293,287 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TIndexExpr`, if possible.
    */
   TIndexExpr convertIndexExprFromRaw(Raw::Element e) { result = TIndexExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TInferTypeRepr`, if possible.
    */
   TInferTypeRepr convertInferTypeReprFromRaw(Raw::Element e) { result = TInferTypeRepr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TItemList`, if possible.
    */
   TItemList convertItemListFromRaw(Raw::Element e) { result = TItemList(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TLabel`, if possible.
    */
   TLabel convertLabelFromRaw(Raw::Element e) { result = TLabel(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TLetElse`, if possible.
    */
   TLetElse convertLetElseFromRaw(Raw::Element e) { result = TLetElse(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TLetExpr`, if possible.
    */
   TLetExpr convertLetExprFromRaw(Raw::Element e) { result = TLetExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TLetStmt`, if possible.
    */
   TLetStmt convertLetStmtFromRaw(Raw::Element e) { result = TLetStmt(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TLifetime`, if possible.
    */
   TLifetime convertLifetimeFromRaw(Raw::Element e) { result = TLifetime(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TLifetimeArg`, if possible.
    */
   TLifetimeArg convertLifetimeArgFromRaw(Raw::Element e) { result = TLifetimeArg(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TLifetimeParam`, if possible.
    */
   TLifetimeParam convertLifetimeParamFromRaw(Raw::Element e) { result = TLifetimeParam(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TLiteralExpr`, if possible.
    */
   TLiteralExpr convertLiteralExprFromRaw(Raw::Element e) { result = TLiteralExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TLiteralPat`, if possible.
    */
   TLiteralPat convertLiteralPatFromRaw(Raw::Element e) { result = TLiteralPat(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TLoopExpr`, if possible.
    */
   TLoopExpr convertLoopExprFromRaw(Raw::Element e) { result = TLoopExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TMacroBlockExpr`, if possible.
    */
   TMacroBlockExpr convertMacroBlockExprFromRaw(Raw::Element e) { result = TMacroBlockExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TMacroCall`, if possible.
    */
   TMacroCall convertMacroCallFromRaw(Raw::Element e) { result = TMacroCall(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TMacroDef`, if possible.
    */
   TMacroDef convertMacroDefFromRaw(Raw::Element e) { result = TMacroDef(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TMacroExpr`, if possible.
    */
   TMacroExpr convertMacroExprFromRaw(Raw::Element e) { result = TMacroExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TMacroItems`, if possible.
    */
   TMacroItems convertMacroItemsFromRaw(Raw::Element e) { result = TMacroItems(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TMacroPat`, if possible.
    */
   TMacroPat convertMacroPatFromRaw(Raw::Element e) { result = TMacroPat(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TMacroRules`, if possible.
    */
   TMacroRules convertMacroRulesFromRaw(Raw::Element e) { result = TMacroRules(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TMacroTypeRepr`, if possible.
    */
   TMacroTypeRepr convertMacroTypeReprFromRaw(Raw::Element e) { result = TMacroTypeRepr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TMatchArm`, if possible.
    */
   TMatchArm convertMatchArmFromRaw(Raw::Element e) { result = TMatchArm(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TMatchArmList`, if possible.
    */
   TMatchArmList convertMatchArmListFromRaw(Raw::Element e) { result = TMatchArmList(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TMatchExpr`, if possible.
    */
   TMatchExpr convertMatchExprFromRaw(Raw::Element e) { result = TMatchExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TMatchGuard`, if possible.
    */
   TMatchGuard convertMatchGuardFromRaw(Raw::Element e) { result = TMatchGuard(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TMeta`, if possible.
    */
   TMeta convertMetaFromRaw(Raw::Element e) { result = TMeta(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TMethodCallExpr`, if possible.
    */
   TMethodCallExpr convertMethodCallExprFromRaw(Raw::Element e) { result = TMethodCallExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TMissing`, if possible.
    */
   TMissing convertMissingFromRaw(Raw::Element e) { result = TMissing(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TModule`, if possible.
    */
   TModule convertModuleFromRaw(Raw::Element e) { result = TModule(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TName`, if possible.
    */
   TName convertNameFromRaw(Raw::Element e) { result = TName(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TNameRef`, if possible.
    */
   TNameRef convertNameRefFromRaw(Raw::Element e) { result = TNameRef(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TNamedCrate`, if possible.
    */
   TNamedCrate convertNamedCrateFromRaw(Raw::Element e) { result = TNamedCrate(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TNeverTypeRepr`, if possible.
    */
   TNeverTypeRepr convertNeverTypeReprFromRaw(Raw::Element e) { result = TNeverTypeRepr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TOffsetOfExpr`, if possible.
    */
   TOffsetOfExpr convertOffsetOfExprFromRaw(Raw::Element e) { result = TOffsetOfExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TOrPat`, if possible.
    */
   TOrPat convertOrPatFromRaw(Raw::Element e) { result = TOrPat(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TParam`, if possible.
    */
   TParam convertParamFromRaw(Raw::Element e) { result = TParam(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TParamList`, if possible.
    */
   TParamList convertParamListFromRaw(Raw::Element e) { result = TParamList(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TParenExpr`, if possible.
    */
   TParenExpr convertParenExprFromRaw(Raw::Element e) { result = TParenExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TParenPat`, if possible.
    */
   TParenPat convertParenPatFromRaw(Raw::Element e) { result = TParenPat(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TParenTypeRepr`, if possible.
    */
   TParenTypeRepr convertParenTypeReprFromRaw(Raw::Element e) { result = TParenTypeRepr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TParenthesizedArgList`, if possible.
    */
   TParenthesizedArgList convertParenthesizedArgListFromRaw(Raw::Element e) {
@@ -1465,162 +1582,189 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TPath`, if possible.
    */
   TPath convertPathFromRaw(Raw::Element e) { result = TPath(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TPathExpr`, if possible.
    */
   TPathExpr convertPathExprFromRaw(Raw::Element e) { result = TPathExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TPathPat`, if possible.
    */
   TPathPat convertPathPatFromRaw(Raw::Element e) { result = TPathPat(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TPathSegment`, if possible.
    */
   TPathSegment convertPathSegmentFromRaw(Raw::Element e) { result = TPathSegment(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TPathTypeRepr`, if possible.
    */
   TPathTypeRepr convertPathTypeReprFromRaw(Raw::Element e) { result = TPathTypeRepr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TPrefixExpr`, if possible.
    */
   TPrefixExpr convertPrefixExprFromRaw(Raw::Element e) { result = TPrefixExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TPtrTypeRepr`, if possible.
    */
   TPtrTypeRepr convertPtrTypeReprFromRaw(Raw::Element e) { result = TPtrTypeRepr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TRangeExpr`, if possible.
    */
   TRangeExpr convertRangeExprFromRaw(Raw::Element e) { result = TRangeExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TRangePat`, if possible.
    */
   TRangePat convertRangePatFromRaw(Raw::Element e) { result = TRangePat(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TRefExpr`, if possible.
    */
   TRefExpr convertRefExprFromRaw(Raw::Element e) { result = TRefExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TRefPat`, if possible.
    */
   TRefPat convertRefPatFromRaw(Raw::Element e) { result = TRefPat(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TRefTypeRepr`, if possible.
    */
   TRefTypeRepr convertRefTypeReprFromRaw(Raw::Element e) { result = TRefTypeRepr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TRename`, if possible.
    */
   TRename convertRenameFromRaw(Raw::Element e) { result = TRename(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TRestPat`, if possible.
    */
   TRestPat convertRestPatFromRaw(Raw::Element e) { result = TRestPat(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TRetTypeRepr`, if possible.
    */
   TRetTypeRepr convertRetTypeReprFromRaw(Raw::Element e) { result = TRetTypeRepr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TReturnExpr`, if possible.
    */
   TReturnExpr convertReturnExprFromRaw(Raw::Element e) { result = TReturnExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TReturnTypeSyntax`, if possible.
    */
   TReturnTypeSyntax convertReturnTypeSyntaxFromRaw(Raw::Element e) { result = TReturnTypeSyntax(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TSelfParam`, if possible.
    */
   TSelfParam convertSelfParamFromRaw(Raw::Element e) { result = TSelfParam(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TSlicePat`, if possible.
    */
   TSlicePat convertSlicePatFromRaw(Raw::Element e) { result = TSlicePat(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TSliceTypeRepr`, if possible.
    */
   TSliceTypeRepr convertSliceTypeReprFromRaw(Raw::Element e) { result = TSliceTypeRepr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TSourceFile`, if possible.
    */
   TSourceFile convertSourceFileFromRaw(Raw::Element e) { result = TSourceFile(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TStatic`, if possible.
    */
   TStatic convertStaticFromRaw(Raw::Element e) { result = TStatic(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TStmtList`, if possible.
    */
   TStmtList convertStmtListFromRaw(Raw::Element e) { result = TStmtList(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TStruct`, if possible.
    */
   TStruct convertStructFromRaw(Raw::Element e) { result = TStruct(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TStructExpr`, if possible.
    */
   TStructExpr convertStructExprFromRaw(Raw::Element e) { result = TStructExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TStructExprField`, if possible.
    */
   TStructExprField convertStructExprFieldFromRaw(Raw::Element e) { result = TStructExprField(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TStructExprFieldList`, if possible.
    */
   TStructExprFieldList convertStructExprFieldListFromRaw(Raw::Element e) {
@@ -1629,30 +1773,35 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TStructField`, if possible.
    */
   TStructField convertStructFieldFromRaw(Raw::Element e) { result = TStructField(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TStructFieldList`, if possible.
    */
   TStructFieldList convertStructFieldListFromRaw(Raw::Element e) { result = TStructFieldList(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TStructPat`, if possible.
    */
   TStructPat convertStructPatFromRaw(Raw::Element e) { result = TStructPat(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TStructPatField`, if possible.
    */
   TStructPatField convertStructPatFieldFromRaw(Raw::Element e) { result = TStructPatField(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TStructPatFieldList`, if possible.
    */
   TStructPatFieldList convertStructPatFieldListFromRaw(Raw::Element e) {
@@ -1661,120 +1810,140 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TTokenTree`, if possible.
    */
   TTokenTree convertTokenTreeFromRaw(Raw::Element e) { result = TTokenTree(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TTrait`, if possible.
    */
   TTrait convertTraitFromRaw(Raw::Element e) { result = TTrait(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TTraitAlias`, if possible.
    */
   TTraitAlias convertTraitAliasFromRaw(Raw::Element e) { result = TTraitAlias(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TTryExpr`, if possible.
    */
   TTryExpr convertTryExprFromRaw(Raw::Element e) { result = TTryExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TTupleExpr`, if possible.
    */
   TTupleExpr convertTupleExprFromRaw(Raw::Element e) { result = TTupleExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TTupleField`, if possible.
    */
   TTupleField convertTupleFieldFromRaw(Raw::Element e) { result = TTupleField(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TTupleFieldList`, if possible.
    */
   TTupleFieldList convertTupleFieldListFromRaw(Raw::Element e) { result = TTupleFieldList(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TTuplePat`, if possible.
    */
   TTuplePat convertTuplePatFromRaw(Raw::Element e) { result = TTuplePat(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TTupleStructPat`, if possible.
    */
   TTupleStructPat convertTupleStructPatFromRaw(Raw::Element e) { result = TTupleStructPat(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TTupleTypeRepr`, if possible.
    */
   TTupleTypeRepr convertTupleTypeReprFromRaw(Raw::Element e) { result = TTupleTypeRepr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TTypeAlias`, if possible.
    */
   TTypeAlias convertTypeAliasFromRaw(Raw::Element e) { result = TTypeAlias(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TTypeArg`, if possible.
    */
   TTypeArg convertTypeArgFromRaw(Raw::Element e) { result = TTypeArg(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TTypeBound`, if possible.
    */
   TTypeBound convertTypeBoundFromRaw(Raw::Element e) { result = TTypeBound(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TTypeBoundList`, if possible.
    */
   TTypeBoundList convertTypeBoundListFromRaw(Raw::Element e) { result = TTypeBoundList(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TTypeParam`, if possible.
    */
   TTypeParam convertTypeParamFromRaw(Raw::Element e) { result = TTypeParam(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TUnderscoreExpr`, if possible.
    */
   TUnderscoreExpr convertUnderscoreExprFromRaw(Raw::Element e) { result = TUnderscoreExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TUnimplemented`, if possible.
    */
   TUnimplemented convertUnimplementedFromRaw(Raw::Element e) { result = TUnimplemented(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TUnion`, if possible.
    */
   TUnion convertUnionFromRaw(Raw::Element e) { result = TUnion(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TUse`, if possible.
    */
   TUse convertUseFromRaw(Raw::Element e) { result = TUse(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TUseBoundGenericArgs`, if possible.
    */
   TUseBoundGenericArgs convertUseBoundGenericArgsFromRaw(Raw::Element e) {
@@ -1783,66 +1952,77 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TUseTree`, if possible.
    */
   TUseTree convertUseTreeFromRaw(Raw::Element e) { result = TUseTree(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TUseTreeList`, if possible.
    */
   TUseTreeList convertUseTreeListFromRaw(Raw::Element e) { result = TUseTreeList(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TVariant`, if possible.
    */
   TVariant convertVariantFromRaw(Raw::Element e) { result = TVariant(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TVariantList`, if possible.
    */
   TVariantList convertVariantListFromRaw(Raw::Element e) { result = TVariantList(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TVisibility`, if possible.
    */
   TVisibility convertVisibilityFromRaw(Raw::Element e) { result = TVisibility(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TWhereClause`, if possible.
    */
   TWhereClause convertWhereClauseFromRaw(Raw::Element e) { result = TWhereClause(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TWherePred`, if possible.
    */
   TWherePred convertWherePredFromRaw(Raw::Element e) { result = TWherePred(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TWhileExpr`, if possible.
    */
   TWhileExpr convertWhileExprFromRaw(Raw::Element e) { result = TWhileExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TWildcardPat`, if possible.
    */
   TWildcardPat convertWildcardPatFromRaw(Raw::Element e) { result = TWildcardPat(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TYeetExpr`, if possible.
    */
   TYeetExpr convertYeetExprFromRaw(Raw::Element e) { result = TYeetExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TYieldExpr`, if possible.
    */
   TYieldExpr convertYieldExprFromRaw(Raw::Element e) { result = TYieldExpr(e) }
diff --git a/rust/ql/lib/codeql/rust/internal/PathResolution.qll b/rust/ql/lib/codeql/rust/internal/PathResolution.qll
index fc49b7ca5e82..2bf316f78bc0 100644
--- a/rust/ql/lib/codeql/rust/internal/PathResolution.qll
+++ b/rust/ql/lib/codeql/rust/internal/PathResolution.qll
@@ -90,24 +90,6 @@ private module UseOption = Option<Use>;
 
 private class UseOption = UseOption::Option;
 
-/**
- * Holds if `n` is superseded by an attribute macro expansion. That is, `n` is
- * an item or a transitive child of an item with an attribute macro expansion.
- */
-predicate supersededByAttributeMacroExpansion(AstNode n) {
-  n.(Item).hasAttributeMacroExpansion()
-  or
-  exists(AstNode parent |
-    n.getParentNode() = parent and
-    supersededByAttributeMacroExpansion(parent) and
-    // Don't exclude expansions themselves as they supercede other nodes.
-    not n = parent.(Item).getAttributeMacroExpansion() and
-    // Don't consider attributes themselves to be superseded.  E.g., in `#[a] fn
-    // f() {}` the macro expansion supercedes `fn f() {}` but not `#[a]`.
-    not n instanceof Attr
-  )
-}
-
 /**
  * An item that may be referred to by a path, and which is a node in
  * the _item graph_.
@@ -186,10 +168,7 @@ predicate supersededByAttributeMacroExpansion(AstNode n) {
  * - https://doc.rust-lang.org/reference/names/namespaces.html
  */
 abstract class ItemNode extends Locatable {
-  ItemNode() {
-    // Exclude items that are superseded by the expansion of an attribute macro.
-    not supersededByAttributeMacroExpansion(this)
-  }
+  ItemNode() { not this.(Item).hasAttributeMacroExpansion() }
 
   /** Gets the (original) name of this item. */
   abstract string getName();
diff --git a/rust/ql/lib/utils/test/PathResolutionInlineExpectationsTest.qll b/rust/ql/lib/utils/test/PathResolutionInlineExpectationsTest.qll
index f7606b941ace..d8b2703203dc 100644
--- a/rust/ql/lib/utils/test/PathResolutionInlineExpectationsTest.qll
+++ b/rust/ql/lib/utils/test/PathResolutionInlineExpectationsTest.qll
@@ -10,9 +10,8 @@ private import utils.test.InlineExpectationsTest
 private module ResolveTest implements TestSig {
   string getARelevantTag() { result = "item" }
 
-  private predicate itemAt(ItemNode i, string filepath, int line, boolean inMacro) {
-    i.getLocation().hasLocationInfo(filepath, _, _, line, _) and
-    if i.(AstNode).isInMacroExpansion() then inMacro = true else inMacro = false
+  private predicate itemAt(ItemNode i, string filepath, int line) {
+    i.getLocation().hasLocationInfo(filepath, _, _, line, _)
   }
 
   private predicate commmentAt(string text, string filepath, int line) {
@@ -25,7 +24,7 @@ private module ResolveTest implements TestSig {
   }
 
   private predicate item(ItemNode i, string value) {
-    exists(string filepath, int line, boolean inMacro | itemAt(i, filepath, line, inMacro) |
+    exists(string filepath, int line | itemAt(i, filepath, line) |
       if i instanceof SourceFile
       then value = i.getFile().getBaseName()
       else (
diff --git a/rust/ql/src/queries/unusedentities/UnreachableCode.ql b/rust/ql/src/queries/unusedentities/UnreachableCode.ql
index 15a45c6f4b58..bb9092fb5703 100644
--- a/rust/ql/src/queries/unusedentities/UnreachableCode.ql
+++ b/rust/ql/src/queries/unusedentities/UnreachableCode.ql
@@ -33,7 +33,7 @@ predicate hiddenNode(AstNode n) {
   n instanceof ControlFlowGraphImpl::PostOrderTree and // location is counter-intuitive
   not n instanceof MacroExpr
   or
-  n.isInMacroExpansion()
+  n.isFromMacroExpansion()
 }
 
 /**
diff --git a/rust/ql/src/queries/unusedentities/UnusedValue.ql b/rust/ql/src/queries/unusedentities/UnusedValue.ql
index 14204a2273b7..07e80b00b45a 100644
--- a/rust/ql/src/queries/unusedentities/UnusedValue.ql
+++ b/rust/ql/src/queries/unusedentities/UnusedValue.ql
@@ -18,7 +18,7 @@ from AstNode write, Ssa::Variable v
 where
   variableWrite(_, write, v) and
   not v instanceof DiscardVariable and
-  not write.isInMacroExpansion() and
+  not write.isFromMacroExpansion() and
   not isAllowableUnused(v) and
   // SSA definitions are only created for live writes
   not write = any(Ssa::WriteDefinition def).getWriteAccess().getAstNode() and
diff --git a/rust/ql/src/queries/unusedentities/UnusedVariable.qll b/rust/ql/src/queries/unusedentities/UnusedVariable.qll
index ad75415634c6..c0684636e77b 100644
--- a/rust/ql/src/queries/unusedentities/UnusedVariable.qll
+++ b/rust/ql/src/queries/unusedentities/UnusedVariable.qll
@@ -36,7 +36,7 @@ class IncompleteCallable extends Callable {
  */
 predicate isAllowableUnused(Variable v) {
   // in a macro expansion
-  v.getPat().isInMacroExpansion()
+  v.getPat().isInMacroExpansion() // TODO: replace with `isFromMacroExpansion()` when false positives have been removed
   or
   // declared in an incomplete callable
   v.getEnclosingCfgScope() instanceof IncompleteCallable
diff --git a/rust/ql/test/extractor-tests/macro-expansion/PrintAst.expected b/rust/ql/test/extractor-tests/macro-expansion/PrintAst.expected
index ffff0f53e7e5..1a0ded6950d3 100644
--- a/rust/ql/test/extractor-tests/macro-expansion/PrintAst.expected
+++ b/rust/ql/test/extractor-tests/macro-expansion/PrintAst.expected
@@ -174,7 +174,7 @@ macro_expansion.rs:
 #    1|           getPath(): [Path] MyTrait
 #    1|             getSegment(): [PathSegment] MyTrait
 #    1|               getIdentifier(): [NameRef] MyTrait
-#    3|   getItem(1): [Function] fn foo
+#    3|   getItem(1): [Function] (item with attribute macro expansion)
 #    4|     getAttributeMacroExpansion(): [MacroItems] MacroItems
 #    4|       getItem(0): [Function] fn foo
 #    4|         getParamList(): [ParamList] ParamList
@@ -190,7 +190,7 @@ macro_expansion.rs:
 #    5|                         getIdentifier(): [NameRef] concat
 #    5|                     getTokenTree(): [TokenTree] TokenTree
 #    5|                     getMacroCallExpansion(): [StringLiteralExpr] "Hello world!"
-#    7|             getStatement(1): [Function] fn inner
+#    7|             getStatement(1): [Function] (item with attribute macro expansion)
 #    8|               getAttributeMacroExpansion(): [MacroItems] MacroItems
 #    8|                 getItem(0): [Function] fn inner_0
 #    8|                   getParamList(): [ParamList] ParamList
@@ -202,16 +202,12 @@ macro_expansion.rs:
 #    8|                   getFunctionBody(): [BlockExpr] { ... }
 #    8|                     getStmtList(): [StmtList] StmtList
 #    8|                   getName(): [Name] inner_1
-#    8|               getParamList(): [ParamList] ParamList
 #    7|               getAttr(0): [Attr] Attr
 #    7|                 getMeta(): [Meta] Meta
 #    7|                   getPath(): [Path] repeat
 #    7|                     getSegment(): [PathSegment] repeat
 #    7|                       getIdentifier(): [NameRef] repeat
 #    7|                   getTokenTree(): [TokenTree] TokenTree
-#    8|               getFunctionBody(): [BlockExpr] { ... }
-#    8|                 getStmtList(): [StmtList] StmtList
-#    8|               getName(): [Name] inner
 #   10|             getStatement(2): [ExprStmt] ExprStmt
 #   10|               getExpr(): [CallExpr] inner_0(...)
 #   10|                 getArgList(): [ArgList] ArgList
@@ -242,7 +238,7 @@ macro_expansion.rs:
 #    5|                         getIdentifier(): [NameRef] concat
 #    5|                     getTokenTree(): [TokenTree] TokenTree
 #    5|                     getMacroCallExpansion(): [StringLiteralExpr] "Hello world!"
-#    7|             getStatement(1): [Function] fn inner
+#    7|             getStatement(1): [Function] (item with attribute macro expansion)
 #    8|               getAttributeMacroExpansion(): [MacroItems] MacroItems
 #    8|                 getItem(0): [Function] fn inner_0
 #    8|                   getParamList(): [ParamList] ParamList
@@ -254,16 +250,12 @@ macro_expansion.rs:
 #    8|                   getFunctionBody(): [BlockExpr] { ... }
 #    8|                     getStmtList(): [StmtList] StmtList
 #    8|                   getName(): [Name] inner_1
-#    8|               getParamList(): [ParamList] ParamList
 #    7|               getAttr(0): [Attr] Attr
 #    7|                 getMeta(): [Meta] Meta
 #    7|                   getPath(): [Path] repeat
 #    7|                     getSegment(): [PathSegment] repeat
 #    7|                       getIdentifier(): [NameRef] repeat
 #    7|                   getTokenTree(): [TokenTree] TokenTree
-#    8|               getFunctionBody(): [BlockExpr] { ... }
-#    8|                 getStmtList(): [StmtList] StmtList
-#    8|               getName(): [Name] inner
 #   10|             getStatement(2): [ExprStmt] ExprStmt
 #   10|               getExpr(): [CallExpr] inner_0(...)
 #   10|                 getArgList(): [ArgList] ArgList
@@ -280,53 +272,14 @@ macro_expansion.rs:
 #   11|                       getIdentifier(): [NameRef] inner_1
 #    4|         getName(): [Name] foo_new
 #    4|         getVisibility(): [Visibility] Visibility
-#    4|     getParamList(): [ParamList] ParamList
 #    3|     getAttr(0): [Attr] Attr
 #    3|       getMeta(): [Meta] Meta
 #    3|         getPath(): [Path] add_one
 #    3|           getSegment(): [PathSegment] add_one
 #    3|             getIdentifier(): [NameRef] add_one
-#    4|     getFunctionBody(): [BlockExpr] { ... }
-#    4|       getStmtList(): [StmtList] StmtList
-#    5|         getStatement(0): [ExprStmt] ExprStmt
-#    5|           getExpr(): [AssignmentExpr] ... = ...
-#    5|             getLhs(): [UnderscoreExpr] _
-#    5|             getRhs(): [MacroExpr] MacroExpr
-#    5|               getMacroCall(): [MacroCall] concat!...
-#    5|                 getPath(): [Path] concat
-#    5|                   getSegment(): [PathSegment] concat
-#    5|                     getIdentifier(): [NameRef] concat
-#    5|                 getTokenTree(): [TokenTree] TokenTree
-#    7|         getStatement(1): [Function] fn inner
-#    8|           getParamList(): [ParamList] ParamList
-#    7|           getAttr(0): [Attr] Attr
-#    7|             getMeta(): [Meta] Meta
-#    7|               getPath(): [Path] repeat
-#    7|                 getSegment(): [PathSegment] repeat
-#    7|                   getIdentifier(): [NameRef] repeat
-#    7|               getTokenTree(): [TokenTree] TokenTree
-#    8|           getFunctionBody(): [BlockExpr] { ... }
-#    8|             getStmtList(): [StmtList] StmtList
-#    8|           getName(): [Name] inner
-#   10|         getStatement(2): [ExprStmt] ExprStmt
-#   10|           getExpr(): [CallExpr] inner_0(...)
-#   10|             getArgList(): [ArgList] ArgList
-#   10|             getFunction(): [PathExpr] inner_0
-#   10|               getPath(): [Path] inner_0
-#   10|                 getSegment(): [PathSegment] inner_0
-#   10|                   getIdentifier(): [NameRef] inner_0
-#   11|         getStatement(3): [ExprStmt] ExprStmt
-#   11|           getExpr(): [CallExpr] inner_1(...)
-#   11|             getArgList(): [ArgList] ArgList
-#   11|             getFunction(): [PathExpr] inner_1
-#   11|               getPath(): [Path] inner_1
-#   11|                 getSegment(): [PathSegment] inner_1
-#   11|                   getIdentifier(): [NameRef] inner_1
-#    4|     getName(): [Name] foo
-#    4|     getVisibility(): [Visibility] Visibility
-#   14|   getItem(2): [Function] fn bar
+#   14|   getItem(2): [Function] (item with attribute macro expansion)
 #   15|     getAttributeMacroExpansion(): [MacroItems] MacroItems
-#   15|       getItem(0): [Function] fn bar_0
+#   15|       getItem(0): [Function] (item with attribute macro expansion)
 #   16|         getAttributeMacroExpansion(): [MacroItems] MacroItems
 #   16|           getItem(0): [Function] fn bar_0
 #   16|             getParamList(): [ParamList] ParamList
@@ -340,17 +293,12 @@ macro_expansion.rs:
 #   16|               getStmtList(): [StmtList] StmtList
 #   16|             getName(): [Name] bar_0_new
 #   16|             getVisibility(): [Visibility] Visibility
-#   16|         getParamList(): [ParamList] ParamList
 #   15|         getAttr(0): [Attr] Attr
 #   15|           getMeta(): [Meta] Meta
 #   15|             getPath(): [Path] add_one
 #   15|               getSegment(): [PathSegment] add_one
 #   15|                 getIdentifier(): [NameRef] add_one
-#   16|         getFunctionBody(): [BlockExpr] { ... }
-#   16|           getStmtList(): [StmtList] StmtList
-#   16|         getName(): [Name] bar_0
-#   16|         getVisibility(): [Visibility] Visibility
-#   15|       getItem(1): [Function] fn bar_1
+#   15|       getItem(1): [Function] (item with attribute macro expansion)
 #   16|         getAttributeMacroExpansion(): [MacroItems] MacroItems
 #   16|           getItem(0): [Function] fn bar_1
 #   16|             getParamList(): [ParamList] ParamList
@@ -364,17 +312,11 @@ macro_expansion.rs:
 #   16|               getStmtList(): [StmtList] StmtList
 #   16|             getName(): [Name] bar_1_new
 #   16|             getVisibility(): [Visibility] Visibility
-#   16|         getParamList(): [ParamList] ParamList
 #   15|         getAttr(0): [Attr] Attr
 #   15|           getMeta(): [Meta] Meta
 #   15|             getPath(): [Path] add_one
 #   15|               getSegment(): [PathSegment] add_one
 #   15|                 getIdentifier(): [NameRef] add_one
-#   16|         getFunctionBody(): [BlockExpr] { ... }
-#   16|           getStmtList(): [StmtList] StmtList
-#   16|         getName(): [Name] bar_1
-#   16|         getVisibility(): [Visibility] Visibility
-#   16|     getParamList(): [ParamList] ParamList
 #   14|     getAttr(0): [Attr] Attr
 #   14|       getMeta(): [Meta] Meta
 #   14|         getPath(): [Path] repeat
@@ -386,22 +328,13 @@ macro_expansion.rs:
 #   15|         getPath(): [Path] add_one
 #   15|           getSegment(): [PathSegment] add_one
 #   15|             getIdentifier(): [NameRef] add_one
-#   16|     getFunctionBody(): [BlockExpr] { ... }
-#   16|       getStmtList(): [StmtList] StmtList
-#   16|     getName(): [Name] bar
-#   16|     getVisibility(): [Visibility] Visibility
-#   18|   getItem(3): [Function] fn baz
+#   18|   getItem(3): [Function] (item with attribute macro expansion)
 #   18|     getAttributeMacroExpansion(): [MacroItems] MacroItems
-#   19|     getParamList(): [ParamList] ParamList
 #   18|     getAttr(0): [Attr] Attr
 #   18|       getMeta(): [Meta] Meta
 #   18|         getPath(): [Path] erase
 #   18|           getSegment(): [PathSegment] erase
 #   18|             getIdentifier(): [NameRef] erase
-#   19|     getFunctionBody(): [BlockExpr] { ... }
-#   19|       getStmtList(): [StmtList] StmtList
-#   19|     getName(): [Name] baz
-#   19|     getVisibility(): [Visibility] Visibility
 #   22|   getItem(4): [MacroRules] MacroRules
 #   22|     getName(): [Name] hello
 #   22|     getTokenTree(): [TokenTree] TokenTree
@@ -410,7 +343,7 @@ macro_expansion.rs:
 #   28|     getVisibility(): [Visibility] Visibility
 #   30|   getItem(6): [Impl] impl S { ... }
 #   30|     getAssocItemList(): [AssocItemList] AssocItemList
-#   31|       getAssocItem(0): [Function] fn bzz
+#   31|       getAssocItem(0): [Function] (item with attribute macro expansion)
 #   32|         getAttributeMacroExpansion(): [MacroItems] MacroItems
 #   32|           getItem(0): [Function] fn bzz_0
 #   32|             getParamList(): [ParamList] ParamList
@@ -556,24 +489,12 @@ macro_expansion.rs:
 #   31|                                               getIdentifier(): [NameRef] _print
 #   32|             getName(): [Name] bzz_2
 #   32|             getVisibility(): [Visibility] Visibility
-#   32|         getParamList(): [ParamList] ParamList
 #   31|         getAttr(0): [Attr] Attr
 #   31|           getMeta(): [Meta] Meta
 #   31|             getPath(): [Path] repeat
 #   31|               getSegment(): [PathSegment] repeat
 #   31|                 getIdentifier(): [NameRef] repeat
 #   31|             getTokenTree(): [TokenTree] TokenTree
-#   32|         getFunctionBody(): [BlockExpr] { ... }
-#   32|           getStmtList(): [StmtList] StmtList
-#   33|             getStatement(0): [ExprStmt] ExprStmt
-#   33|               getExpr(): [MacroExpr] MacroExpr
-#   33|                 getMacroCall(): [MacroCall] hello!...
-#   33|                   getPath(): [Path] hello
-#   33|                     getSegment(): [PathSegment] hello
-#   33|                       getIdentifier(): [NameRef] hello
-#   33|                   getTokenTree(): [TokenTree] TokenTree
-#   32|         getName(): [Name] bzz
-#   32|         getVisibility(): [Visibility] Visibility
 #   30|     getSelfTy(): [PathTypeRepr] S
 #   30|       getPath(): [Path] S
 #   30|         getSegment(): [PathSegment] S
diff --git a/rust/ql/test/extractor-tests/macro-expansion/test.expected b/rust/ql/test/extractor-tests/macro-expansion/test.expected
index 930a0f443bd8..5abff30113bc 100644
--- a/rust/ql/test/extractor-tests/macro-expansion/test.expected
+++ b/rust/ql/test/extractor-tests/macro-expansion/test.expected
@@ -1,19 +1,19 @@
 attribute_macros
-| macro_expansion.rs:3:1:12:1 | fn foo | 0 | macro_expansion.rs:4:1:12:1 | fn foo |
-| macro_expansion.rs:3:1:12:1 | fn foo | 1 | macro_expansion.rs:4:1:12:1 | fn foo_new |
-| macro_expansion.rs:7:5:8:17 | fn inner | 0 | macro_expansion.rs:8:5:8:17 | fn inner_0 |
-| macro_expansion.rs:7:5:8:17 | fn inner | 0 | macro_expansion.rs:8:5:8:17 | fn inner_0 |
-| macro_expansion.rs:7:5:8:17 | fn inner | 1 | macro_expansion.rs:8:5:8:17 | fn inner_1 |
-| macro_expansion.rs:7:5:8:17 | fn inner | 1 | macro_expansion.rs:8:5:8:17 | fn inner_1 |
-| macro_expansion.rs:14:1:16:15 | fn bar | 0 | macro_expansion.rs:15:1:16:15 | fn bar_0 |
-| macro_expansion.rs:14:1:16:15 | fn bar | 1 | macro_expansion.rs:15:1:16:15 | fn bar_1 |
-| macro_expansion.rs:15:1:16:15 | fn bar_0 | 0 | macro_expansion.rs:16:1:16:15 | fn bar_0 |
-| macro_expansion.rs:15:1:16:15 | fn bar_0 | 1 | macro_expansion.rs:16:1:16:15 | fn bar_0_new |
-| macro_expansion.rs:15:1:16:15 | fn bar_1 | 0 | macro_expansion.rs:16:1:16:15 | fn bar_1 |
-| macro_expansion.rs:15:1:16:15 | fn bar_1 | 1 | macro_expansion.rs:16:1:16:15 | fn bar_1_new |
-| macro_expansion.rs:31:5:34:5 | fn bzz | 0 | macro_expansion.rs:32:5:34:5 | fn bzz_0 |
-| macro_expansion.rs:31:5:34:5 | fn bzz | 1 | macro_expansion.rs:32:5:34:5 | fn bzz_1 |
-| macro_expansion.rs:31:5:34:5 | fn bzz | 2 | macro_expansion.rs:32:5:34:5 | fn bzz_2 |
+| macro_expansion.rs:3:1:12:1 | (item with attribute macro expansion) | 0 | macro_expansion.rs:4:1:12:1 | fn foo |
+| macro_expansion.rs:3:1:12:1 | (item with attribute macro expansion) | 1 | macro_expansion.rs:4:1:12:1 | fn foo_new |
+| macro_expansion.rs:7:5:8:17 | (item with attribute macro expansion) | 0 | macro_expansion.rs:8:5:8:17 | fn inner_0 |
+| macro_expansion.rs:7:5:8:17 | (item with attribute macro expansion) | 0 | macro_expansion.rs:8:5:8:17 | fn inner_0 |
+| macro_expansion.rs:7:5:8:17 | (item with attribute macro expansion) | 1 | macro_expansion.rs:8:5:8:17 | fn inner_1 |
+| macro_expansion.rs:7:5:8:17 | (item with attribute macro expansion) | 1 | macro_expansion.rs:8:5:8:17 | fn inner_1 |
+| macro_expansion.rs:14:1:16:15 | (item with attribute macro expansion) | 0 | macro_expansion.rs:15:1:16:15 | (item with attribute macro expansion) |
+| macro_expansion.rs:14:1:16:15 | (item with attribute macro expansion) | 1 | macro_expansion.rs:15:1:16:15 | (item with attribute macro expansion) |
+| macro_expansion.rs:15:1:16:15 | (item with attribute macro expansion) | 0 | macro_expansion.rs:16:1:16:15 | fn bar_0 |
+| macro_expansion.rs:15:1:16:15 | (item with attribute macro expansion) | 0 | macro_expansion.rs:16:1:16:15 | fn bar_1 |
+| macro_expansion.rs:15:1:16:15 | (item with attribute macro expansion) | 1 | macro_expansion.rs:16:1:16:15 | fn bar_0_new |
+| macro_expansion.rs:15:1:16:15 | (item with attribute macro expansion) | 1 | macro_expansion.rs:16:1:16:15 | fn bar_1_new |
+| macro_expansion.rs:31:5:34:5 | (item with attribute macro expansion) | 0 | macro_expansion.rs:32:5:34:5 | fn bzz_0 |
+| macro_expansion.rs:31:5:34:5 | (item with attribute macro expansion) | 1 | macro_expansion.rs:32:5:34:5 | fn bzz_1 |
+| macro_expansion.rs:31:5:34:5 | (item with attribute macro expansion) | 2 | macro_expansion.rs:32:5:34:5 | fn bzz_2 |
 derive_macros
 | macro_expansion.rs:83:1:86:1 | struct MyDerive | 0 | 0 | macro_expansion.rs:84:8:85:9 | impl ...::Debug for MyDerive::<...> { ... } |
 | macro_expansion.rs:88:1:92:1 | enum MyDeriveEnum | 0 | 0 | macro_expansion.rs:89:6:91:12 | impl ...::PartialEq for MyDeriveEnum::<...> { ... } |
@@ -46,8 +46,6 @@ macro_calls
 | macro_expansion.rs:79:12:79:20 | my_int!... | macro_expansion.rs:79:12:79:18 | i32 |
 unexpanded_macro_calls
 | included/included.rs:2:9:2:39 | concat!... |
-| macro_expansion.rs:5:9:5:35 | concat!... |
-| macro_expansion.rs:33:9:33:16 | hello!... |
 | macro_expansion.rs:56:9:56:31 | concat!... |
 | macro_expansion.rs:63:9:63:32 | include_str!... |
 warnings
diff --git a/rust/ql/test/extractor-tests/macro-in-library/PrintAst.expected b/rust/ql/test/extractor-tests/macro-in-library/PrintAst.expected
index b88537912102..30dbc24103b9 100644
--- a/rust/ql/test/extractor-tests/macro-in-library/PrintAst.expected
+++ b/rust/ql/test/extractor-tests/macro-in-library/PrintAst.expected
@@ -5,7 +5,7 @@ lib.rs:
 #    1|     getVisibility(): [Visibility] Visibility
 macro_in_library.rs:
 #    1| [SourceFile] SourceFile
-#    1|   getItem(0): [MacroCall] 
+#    1|   getItem(0): [MacroCall] (item with attribute macro expansion)
 #    2|     getAttributeMacroExpansion(): [MacroItems] MacroItems
 #    2|       getItem(0): [Function] fn foo
 #    2|         getParamList(): [ParamList] ParamList
diff --git a/rust/ql/test/library-tests/dataflow/sources/net/CONSISTENCY/PathResolutionConsistency.expected b/rust/ql/test/library-tests/dataflow/sources/net/CONSISTENCY/PathResolutionConsistency.expected
index 352992bf4f2d..ca5c386b720c 100644
--- a/rust/ql/test/library-tests/dataflow/sources/net/CONSISTENCY/PathResolutionConsistency.expected
+++ b/rust/ql/test/library-tests/dataflow/sources/net/CONSISTENCY/PathResolutionConsistency.expected
@@ -7,4 +7,3 @@ multipleCallTargets
 | test.rs:447:30:447:67 | pinned.poll_read(...) |
 | test.rs:470:26:470:54 | pinned.poll_fill_buf(...) |
 | test.rs:519:50:519:66 | ...::from(...) |
-| test.rs:519:50:519:66 | ...::from(...) |
diff --git a/rust/ql/test/library-tests/dataflow/sources/net/TaintSources.expected b/rust/ql/test/library-tests/dataflow/sources/net/TaintSources.expected
index 190628f93d7d..bfe1ce0e56bc 100644
--- a/rust/ql/test/library-tests/dataflow/sources/net/TaintSources.expected
+++ b/rust/ql/test/library-tests/dataflow/sources/net/TaintSources.expected
@@ -15,4 +15,3 @@
 | test.rs:332:22:332:50 | ...::new | Flow source 'RemoteSource' of type remote (DEFAULT). |
 | test.rs:373:19:373:36 | ...::connect | Flow source 'RemoteSource' of type remote (DEFAULT). |
 | test.rs:519:16:519:29 | ...::args | Flow source 'CommandLineArgs' of type commandargs (DEFAULT). |
-| test.rs:519:16:519:29 | ...::args | Flow source 'CommandLineArgs' of type commandargs (DEFAULT). |
diff --git a/rust/ql/test/library-tests/dataflow/sources/web_frameworks/InlineFlow.expected b/rust/ql/test/library-tests/dataflow/sources/web_frameworks/InlineFlow.expected
index e128916f8473..24a0cf78aec0 100644
--- a/rust/ql/test/library-tests/dataflow/sources/web_frameworks/InlineFlow.expected
+++ b/rust/ql/test/library-tests/dataflow/sources/web_frameworks/InlineFlow.expected
@@ -12,20 +12,12 @@ models
 | 11 | Summary: <alloc::string::String>::as_str; Argument[self]; ReturnValue; value |
 edges
 | test.rs:11:31:11:31 | a | test.rs:13:14:13:14 | a | provenance |  |
-| test.rs:11:31:11:31 | a | test.rs:13:14:13:14 | a | provenance |  |
-| test.rs:11:31:11:31 | a | test.rs:13:14:13:23 | a.as_str() | provenance | MaD:11 |
 | test.rs:11:31:11:31 | a | test.rs:13:14:13:23 | a.as_str() | provenance | MaD:11 |
 | test.rs:11:31:11:31 | a | test.rs:14:14:14:14 | a | provenance |  |
-| test.rs:11:31:11:31 | a | test.rs:14:14:14:14 | a | provenance |  |
 | test.rs:11:31:11:31 | a | test.rs:14:14:14:25 | a.as_bytes() | provenance | MaD:10 |
-| test.rs:11:31:11:31 | a | test.rs:14:14:14:25 | a.as_bytes() | provenance | MaD:10 |
-| test.rs:11:31:11:31 | a | test.rs:15:14:15:14 | a | provenance |  |
 | test.rs:11:31:11:31 | a | test.rs:15:14:15:14 | a | provenance |  |
 | test.rs:13:14:13:14 | a | test.rs:13:14:13:23 | a.as_str() | provenance | MaD:11 |
-| test.rs:13:14:13:14 | a | test.rs:13:14:13:23 | a.as_str() | provenance | MaD:11 |
 | test.rs:14:14:14:14 | a | test.rs:14:14:14:25 | a.as_bytes() | provenance | MaD:10 |
-| test.rs:14:14:14:14 | a | test.rs:14:14:14:25 | a.as_bytes() | provenance | MaD:10 |
-| test.rs:68:15:68:15 | a | test.rs:70:14:70:14 | a | provenance |  |
 | test.rs:68:15:68:15 | a | test.rs:70:14:70:14 | a | provenance |  |
 | test.rs:98:9:98:31 | ...: ...::Path::<...> | test.rs:100:17:100:33 | path.into_inner() | provenance | MaD:9 |
 | test.rs:98:9:98:31 | ...: ...::Path::<...> | test.rs:100:17:100:33 | path.into_inner() [tuple.0] | provenance | MaD:6 |
@@ -87,37 +79,21 @@ edges
 | test.rs:139:41:139:42 | to | test.rs:98:9:98:31 | ...: ...::Path::<...> | provenance | Src:MaD:5  |
 | test.rs:140:45:140:46 | to | test.rs:109:9:109:41 | ...: ...::Path::<...> | provenance | Src:MaD:5  |
 | test.rs:242:33:242:35 | map | test.rs:242:38:242:46 | ...: String | provenance | Src:MaD:2  |
-| test.rs:242:33:242:35 | map | test.rs:242:38:242:46 | ...: String | provenance | Src:MaD:2  |
 | test.rs:242:38:242:46 | ...: String | test.rs:244:18:244:18 | a | provenance |  |
-| test.rs:242:38:242:46 | ...: String | test.rs:244:18:244:18 | a | provenance |  |
-| test.rs:250:46:250:49 | then | test.rs:251:25:251:33 | ...: String | provenance | Src:MaD:3  |
 | test.rs:250:46:250:49 | then | test.rs:251:25:251:33 | ...: String | provenance | Src:MaD:3  |
 | test.rs:251:25:251:33 | ...: String | test.rs:252:22:252:22 | a | provenance |  |
-| test.rs:251:25:251:33 | ...: String | test.rs:252:22:252:22 | a | provenance |  |
-| test.rs:259:50:259:57 | and_then | test.rs:260:26:260:32 | ...: u64 | provenance | Src:MaD:1  |
 | test.rs:259:50:259:57 | and_then | test.rs:260:26:260:32 | ...: u64 | provenance | Src:MaD:1  |
 | test.rs:260:26:260:32 | ...: u64 | test.rs:263:22:263:23 | id | provenance |  |
-| test.rs:260:26:260:32 | ...: u64 | test.rs:263:22:263:23 | id | provenance |  |
 | test.rs:272:75:272:77 | map | test.rs:273:15:273:23 | ...: String | provenance | Src:MaD:2  |
-| test.rs:272:75:272:77 | map | test.rs:273:15:273:23 | ...: String | provenance | Src:MaD:2  |
-| test.rs:273:15:273:23 | ...: String | test.rs:275:22:275:22 | a | provenance |  |
 | test.rs:273:15:273:23 | ...: String | test.rs:275:22:275:22 | a | provenance |  |
 nodes
 | test.rs:11:31:11:31 | a | semmle.label | a |
-| test.rs:11:31:11:31 | a | semmle.label | a |
 | test.rs:13:14:13:14 | a | semmle.label | a |
-| test.rs:13:14:13:14 | a | semmle.label | a |
-| test.rs:13:14:13:23 | a.as_str() | semmle.label | a.as_str() |
 | test.rs:13:14:13:23 | a.as_str() | semmle.label | a.as_str() |
 | test.rs:14:14:14:14 | a | semmle.label | a |
-| test.rs:14:14:14:14 | a | semmle.label | a |
 | test.rs:14:14:14:25 | a.as_bytes() | semmle.label | a.as_bytes() |
-| test.rs:14:14:14:25 | a.as_bytes() | semmle.label | a.as_bytes() |
-| test.rs:15:14:15:14 | a | semmle.label | a |
 | test.rs:15:14:15:14 | a | semmle.label | a |
 | test.rs:68:15:68:15 | a | semmle.label | a |
-| test.rs:68:15:68:15 | a | semmle.label | a |
-| test.rs:70:14:70:14 | a | semmle.label | a |
 | test.rs:70:14:70:14 | a | semmle.label | a |
 | test.rs:98:9:98:31 | ...: ...::Path::<...> | semmle.label | ...: ...::Path::<...> |
 | test.rs:100:13:100:13 | a | semmle.label | a |
@@ -162,39 +138,23 @@ nodes
 | test.rs:139:41:139:42 | to | semmle.label | to |
 | test.rs:140:45:140:46 | to | semmle.label | to |
 | test.rs:242:33:242:35 | map | semmle.label | map |
-| test.rs:242:33:242:35 | map | semmle.label | map |
 | test.rs:242:38:242:46 | ...: String | semmle.label | ...: String |
-| test.rs:242:38:242:46 | ...: String | semmle.label | ...: String |
-| test.rs:244:18:244:18 | a | semmle.label | a |
 | test.rs:244:18:244:18 | a | semmle.label | a |
 | test.rs:250:46:250:49 | then | semmle.label | then |
-| test.rs:250:46:250:49 | then | semmle.label | then |
 | test.rs:251:25:251:33 | ...: String | semmle.label | ...: String |
-| test.rs:251:25:251:33 | ...: String | semmle.label | ...: String |
-| test.rs:252:22:252:22 | a | semmle.label | a |
 | test.rs:252:22:252:22 | a | semmle.label | a |
 | test.rs:259:50:259:57 | and_then | semmle.label | and_then |
-| test.rs:259:50:259:57 | and_then | semmle.label | and_then |
 | test.rs:260:26:260:32 | ...: u64 | semmle.label | ...: u64 |
-| test.rs:260:26:260:32 | ...: u64 | semmle.label | ...: u64 |
-| test.rs:263:22:263:23 | id | semmle.label | id |
 | test.rs:263:22:263:23 | id | semmle.label | id |
 | test.rs:272:75:272:77 | map | semmle.label | map |
-| test.rs:272:75:272:77 | map | semmle.label | map |
-| test.rs:273:15:273:23 | ...: String | semmle.label | ...: String |
 | test.rs:273:15:273:23 | ...: String | semmle.label | ...: String |
 | test.rs:275:22:275:22 | a | semmle.label | a |
-| test.rs:275:22:275:22 | a | semmle.label | a |
 subpaths
 testFailures
 #select
 | test.rs:13:14:13:23 | a.as_str() | test.rs:11:31:11:31 | a | test.rs:13:14:13:23 | a.as_str() | $@ | test.rs:11:31:11:31 | a | a |
-| test.rs:13:14:13:23 | a.as_str() | test.rs:11:31:11:31 | a | test.rs:13:14:13:23 | a.as_str() | $@ | test.rs:11:31:11:31 | a | a |
-| test.rs:14:14:14:25 | a.as_bytes() | test.rs:11:31:11:31 | a | test.rs:14:14:14:25 | a.as_bytes() | $@ | test.rs:11:31:11:31 | a | a |
 | test.rs:14:14:14:25 | a.as_bytes() | test.rs:11:31:11:31 | a | test.rs:14:14:14:25 | a.as_bytes() | $@ | test.rs:11:31:11:31 | a | a |
 | test.rs:15:14:15:14 | a | test.rs:11:31:11:31 | a | test.rs:15:14:15:14 | a | $@ | test.rs:11:31:11:31 | a | a |
-| test.rs:15:14:15:14 | a | test.rs:11:31:11:31 | a | test.rs:15:14:15:14 | a | $@ | test.rs:11:31:11:31 | a | a |
-| test.rs:70:14:70:14 | a | test.rs:68:15:68:15 | a | test.rs:70:14:70:14 | a | $@ | test.rs:68:15:68:15 | a | a |
 | test.rs:70:14:70:14 | a | test.rs:68:15:68:15 | a | test.rs:70:14:70:14 | a | $@ | test.rs:68:15:68:15 | a | a |
 | test.rs:101:14:101:23 | a.as_str() | test.rs:139:41:139:42 | to | test.rs:101:14:101:23 | a.as_str() | $@ | test.rs:139:41:139:42 | to | to |
 | test.rs:102:14:102:25 | a.as_bytes() | test.rs:139:41:139:42 | to | test.rs:102:14:102:25 | a.as_bytes() | $@ | test.rs:139:41:139:42 | to | to |
@@ -203,10 +163,6 @@ testFailures
 | test.rs:114:14:114:14 | b | test.rs:140:45:140:46 | to | test.rs:114:14:114:14 | b | $@ | test.rs:140:45:140:46 | to | to |
 | test.rs:132:14:132:14 | a | test.rs:127:5:127:20 | to | test.rs:132:14:132:14 | a | $@ | test.rs:127:5:127:20 | to | to |
 | test.rs:244:18:244:18 | a | test.rs:242:33:242:35 | map | test.rs:244:18:244:18 | a | $@ | test.rs:242:33:242:35 | map | map |
-| test.rs:244:18:244:18 | a | test.rs:242:33:242:35 | map | test.rs:244:18:244:18 | a | $@ | test.rs:242:33:242:35 | map | map |
-| test.rs:252:22:252:22 | a | test.rs:250:46:250:49 | then | test.rs:252:22:252:22 | a | $@ | test.rs:250:46:250:49 | then | then |
 | test.rs:252:22:252:22 | a | test.rs:250:46:250:49 | then | test.rs:252:22:252:22 | a | $@ | test.rs:250:46:250:49 | then | then |
 | test.rs:263:22:263:23 | id | test.rs:259:50:259:57 | and_then | test.rs:263:22:263:23 | id | $@ | test.rs:259:50:259:57 | and_then | and_then |
-| test.rs:263:22:263:23 | id | test.rs:259:50:259:57 | and_then | test.rs:263:22:263:23 | id | $@ | test.rs:259:50:259:57 | and_then | and_then |
-| test.rs:275:22:275:22 | a | test.rs:272:75:272:77 | map | test.rs:275:22:275:22 | a | $@ | test.rs:272:75:272:77 | map | map |
 | test.rs:275:22:275:22 | a | test.rs:272:75:272:77 | map | test.rs:275:22:275:22 | a | $@ | test.rs:272:75:272:77 | map | map |
diff --git a/rust/ql/test/library-tests/dataflow/sources/web_frameworks/TaintSources.expected b/rust/ql/test/library-tests/dataflow/sources/web_frameworks/TaintSources.expected
index 549f9c4ab762..20a20ce3f9b1 100644
--- a/rust/ql/test/library-tests/dataflow/sources/web_frameworks/TaintSources.expected
+++ b/rust/ql/test/library-tests/dataflow/sources/web_frameworks/TaintSources.expected
@@ -1,12 +1,7 @@
 | test.rs:11:31:11:31 | a | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:11:31:11:31 | a | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:22:14:22:19 | TuplePat | Flow source 'RemoteSource' of type remote (DEFAULT). |
 | test.rs:22:14:22:19 | TuplePat | Flow source 'RemoteSource' of type remote (DEFAULT). |
 | test.rs:48:14:48:30 | MyStruct {...} | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:48:14:48:30 | MyStruct {...} | Flow source 'RemoteSource' of type remote (DEFAULT). |
 | test.rs:58:14:58:15 | ms | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:58:14:58:15 | ms | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:68:15:68:15 | a | Flow source 'RemoteSource' of type remote (DEFAULT). |
 | test.rs:68:15:68:15 | a | Flow source 'RemoteSource' of type remote (DEFAULT). |
 | test.rs:127:5:127:20 | to | Flow source 'RemoteSource' of type remote (DEFAULT). |
 | test.rs:127:5:127:20 | to | Flow source 'RemoteSource' of type remote (DEFAULT). |
@@ -48,20 +43,6 @@
 | test.rs:242:33:242:35 | map | Flow source 'RemoteSource' of type remote (DEFAULT). |
 | test.rs:242:33:242:35 | map | Flow source 'RemoteSource' of type remote (DEFAULT). |
 | test.rs:242:33:242:35 | map | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:242:33:242:35 | map | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:242:33:242:35 | map | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:242:33:242:35 | map | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:242:33:242:35 | map | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:242:33:242:35 | map | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:242:33:242:35 | map | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:242:33:242:35 | map | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:242:33:242:35 | map | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:250:46:250:49 | then | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:250:46:250:49 | then | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:250:46:250:49 | then | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:250:46:250:49 | then | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:250:46:250:49 | then | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:250:46:250:49 | then | Flow source 'RemoteSource' of type remote (DEFAULT). |
 | test.rs:250:46:250:49 | then | Flow source 'RemoteSource' of type remote (DEFAULT). |
 | test.rs:250:46:250:49 | then | Flow source 'RemoteSource' of type remote (DEFAULT). |
 | test.rs:250:46:250:49 | then | Flow source 'RemoteSource' of type remote (DEFAULT). |
@@ -70,15 +51,6 @@
 | test.rs:250:46:250:49 | then | Flow source 'RemoteSource' of type remote (DEFAULT). |
 | test.rs:250:46:250:49 | then | Flow source 'RemoteSource' of type remote (DEFAULT). |
 | test.rs:250:46:250:49 | then | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:250:46:250:49 | then | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:250:46:250:49 | then | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:259:50:259:57 | and_then | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:259:50:259:57 | and_then | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:259:50:259:57 | and_then | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:259:50:259:57 | and_then | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:259:50:259:57 | and_then | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:259:50:259:57 | and_then | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:259:50:259:57 | and_then | Flow source 'RemoteSource' of type remote (DEFAULT). |
 | test.rs:259:50:259:57 | and_then | Flow source 'RemoteSource' of type remote (DEFAULT). |
 | test.rs:259:50:259:57 | and_then | Flow source 'RemoteSource' of type remote (DEFAULT). |
 | test.rs:259:50:259:57 | and_then | Flow source 'RemoteSource' of type remote (DEFAULT). |
@@ -87,15 +59,6 @@
 | test.rs:259:50:259:57 | and_then | Flow source 'RemoteSource' of type remote (DEFAULT). |
 | test.rs:259:50:259:57 | and_then | Flow source 'RemoteSource' of type remote (DEFAULT). |
 | test.rs:259:50:259:57 | and_then | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:259:50:259:57 | and_then | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:272:75:272:77 | map | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:272:75:272:77 | map | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:272:75:272:77 | map | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:272:75:272:77 | map | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:272:75:272:77 | map | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:272:75:272:77 | map | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:272:75:272:77 | map | Flow source 'RemoteSource' of type remote (DEFAULT). |
-| test.rs:272:75:272:77 | map | Flow source 'RemoteSource' of type remote (DEFAULT). |
 | test.rs:272:75:272:77 | map | Flow source 'RemoteSource' of type remote (DEFAULT). |
 | test.rs:272:75:272:77 | map | Flow source 'RemoteSource' of type remote (DEFAULT). |
 | test.rs:272:75:272:77 | map | Flow source 'RemoteSource' of type remote (DEFAULT). |
diff --git a/rust/ql/test/library-tests/variables/variables.ql b/rust/ql/test/library-tests/variables/variables.ql
index dbde4f56e858..9997b29c7d0e 100644
--- a/rust/ql/test/library-tests/variables/variables.ql
+++ b/rust/ql/test/library-tests/variables/variables.ql
@@ -35,7 +35,7 @@ module VariableAccessTest implements TestSig {
   private predicate declAt(Variable v, string filepath, int line, boolean inMacro) {
     variable(v) and
     v.getLocation().hasLocationInfo(filepath, _, _, line, _) and
-    if v.getPat().isInMacroExpansion() then inMacro = true else inMacro = false
+    if v.getPat().isFromMacroExpansion() then inMacro = true else inMacro = false
   }
 
   private predicate commmentAt(string text, string filepath, int line) {
diff --git a/rust/ql/test/query-tests/security/CWE-696/CONSISTENCY/PathResolutionConsistency.expected b/rust/ql/test/query-tests/security/CWE-696/CONSISTENCY/PathResolutionConsistency.expected
index b1c7e787dee5..538ecf9c2e35 100644
--- a/rust/ql/test/query-tests/security/CWE-696/CONSISTENCY/PathResolutionConsistency.expected
+++ b/rust/ql/test/query-tests/security/CWE-696/CONSISTENCY/PathResolutionConsistency.expected
@@ -1,3 +1,2 @@
 multipleCallTargets
 | test.rs:117:9:117:21 | ptr.is_null() |
-| test.rs:117:9:117:21 | ptr.is_null() |
diff --git a/rust/ql/test/query-tests/security/CWE-918/CONSISTENCY/PathResolutionConsistency.expected b/rust/ql/test/query-tests/security/CWE-918/CONSISTENCY/PathResolutionConsistency.expected
index 5caae105914c..821f75cee26d 100644
--- a/rust/ql/test/query-tests/security/CWE-918/CONSISTENCY/PathResolutionConsistency.expected
+++ b/rust/ql/test/query-tests/security/CWE-918/CONSISTENCY/PathResolutionConsistency.expected
@@ -1,3 +1,2 @@
 multipleCallTargets
 | request_forgery_tests.rs:30:36:30:52 | user_url.as_str() |
-| request_forgery_tests.rs:30:36:30:52 | user_url.as_str() |
diff --git a/rust/ql/test/query-tests/security/CWE-918/RequestForgery.expected b/rust/ql/test/query-tests/security/CWE-918/RequestForgery.expected
index aa5003a0e9d3..0f931ed3a0f8 100644
--- a/rust/ql/test/query-tests/security/CWE-918/RequestForgery.expected
+++ b/rust/ql/test/query-tests/security/CWE-918/RequestForgery.expected
@@ -1,29 +1,20 @@
 #select
 | request_forgery_tests.rs:8:24:8:35 | ...::get | request_forgery_tests.rs:5:29:5:36 | user_url | request_forgery_tests.rs:8:24:8:35 | ...::get | The URL of this request depends on a $@. | request_forgery_tests.rs:5:29:5:36 | user_url | user-provided value |
-| request_forgery_tests.rs:8:24:8:35 | ...::get | request_forgery_tests.rs:5:29:5:36 | user_url | request_forgery_tests.rs:8:24:8:35 | ...::get | The URL of this request depends on a $@. | request_forgery_tests.rs:5:29:5:36 | user_url | user-provided value |
 | request_forgery_tests.rs:17:25:17:36 | ...::get | request_forgery_tests.rs:5:29:5:36 | user_url | request_forgery_tests.rs:17:25:17:36 | ...::get | The URL of this request depends on a $@. | request_forgery_tests.rs:5:29:5:36 | user_url | user-provided value |
 | request_forgery_tests.rs:21:25:21:36 | ...::get | request_forgery_tests.rs:5:29:5:36 | user_url | request_forgery_tests.rs:21:25:21:36 | ...::get | The URL of this request depends on a $@. | request_forgery_tests.rs:5:29:5:36 | user_url | user-provided value |
 | request_forgery_tests.rs:25:25:25:36 | ...::get | request_forgery_tests.rs:5:29:5:36 | user_url | request_forgery_tests.rs:25:25:25:36 | ...::get | The URL of this request depends on a $@. | request_forgery_tests.rs:5:29:5:36 | user_url | user-provided value |
 | request_forgery_tests.rs:31:29:31:40 | ...::get | request_forgery_tests.rs:5:29:5:36 | user_url | request_forgery_tests.rs:31:29:31:40 | ...::get | The URL of this request depends on a $@. | request_forgery_tests.rs:5:29:5:36 | user_url | user-provided value |
-| request_forgery_tests.rs:31:29:31:40 | ...::get | request_forgery_tests.rs:5:29:5:36 | user_url | request_forgery_tests.rs:31:29:31:40 | ...::get | The URL of this request depends on a $@. | request_forgery_tests.rs:5:29:5:36 | user_url | user-provided value |
 | request_forgery_tests.rs:37:37:37:48 | ...::get | request_forgery_tests.rs:5:29:5:36 | user_url | request_forgery_tests.rs:37:37:37:48 | ...::get | The URL of this request depends on a $@. | request_forgery_tests.rs:5:29:5:36 | user_url | user-provided value |
-| request_forgery_tests.rs:37:37:37:48 | ...::get | request_forgery_tests.rs:5:29:5:36 | user_url | request_forgery_tests.rs:37:37:37:48 | ...::get | The URL of this request depends on a $@. | request_forgery_tests.rs:5:29:5:36 | user_url | user-provided value |
-| request_forgery_tests.rs:68:28:68:39 | ...::get | request_forgery_tests.rs:65:33:65:40 | and_then | request_forgery_tests.rs:68:28:68:39 | ...::get | The URL of this request depends on a $@. | request_forgery_tests.rs:65:33:65:40 | and_then | user-provided value |
 | request_forgery_tests.rs:68:28:68:39 | ...::get | request_forgery_tests.rs:65:33:65:40 | and_then | request_forgery_tests.rs:68:28:68:39 | ...::get | The URL of this request depends on a $@. | request_forgery_tests.rs:65:33:65:40 | and_then | user-provided value |
 edges
 | request_forgery_tests.rs:5:29:5:36 | user_url | request_forgery_tests.rs:8:38:8:45 | user_url | provenance |  |
-| request_forgery_tests.rs:5:29:5:36 | user_url | request_forgery_tests.rs:8:38:8:45 | user_url | provenance |  |
 | request_forgery_tests.rs:5:29:5:36 | user_url | request_forgery_tests.rs:16:27:16:49 | MacroExpr | provenance |  |
 | request_forgery_tests.rs:5:29:5:36 | user_url | request_forgery_tests.rs:20:27:20:57 | MacroExpr | provenance |  |
 | request_forgery_tests.rs:5:29:5:36 | user_url | request_forgery_tests.rs:24:27:24:70 | MacroExpr | provenance |  |
 | request_forgery_tests.rs:5:29:5:36 | user_url | request_forgery_tests.rs:31:43:31:50 | user_url | provenance |  |
-| request_forgery_tests.rs:5:29:5:36 | user_url | request_forgery_tests.rs:31:43:31:50 | user_url | provenance |  |
 | request_forgery_tests.rs:5:29:5:36 | user_url | request_forgery_tests.rs:37:51:37:58 | user_url | provenance |  |
-| request_forgery_tests.rs:5:29:5:36 | user_url | request_forgery_tests.rs:37:51:37:58 | user_url | provenance |  |
-| request_forgery_tests.rs:8:37:8:45 | &user_url [&ref] | request_forgery_tests.rs:8:24:8:35 | ...::get | provenance | MaD:1 Sink:MaD:1 |
 | request_forgery_tests.rs:8:37:8:45 | &user_url [&ref] | request_forgery_tests.rs:8:24:8:35 | ...::get | provenance | MaD:1 Sink:MaD:1 |
 | request_forgery_tests.rs:8:38:8:45 | user_url | request_forgery_tests.rs:8:37:8:45 | &user_url [&ref] | provenance |  |
-| request_forgery_tests.rs:8:38:8:45 | user_url | request_forgery_tests.rs:8:37:8:45 | &user_url [&ref] | provenance |  |
 | request_forgery_tests.rs:16:13:16:15 | url | request_forgery_tests.rs:17:39:17:41 | url | provenance |  |
 | request_forgery_tests.rs:16:27:16:49 | ...::format(...) | request_forgery_tests.rs:16:27:16:49 | { ... } | provenance |  |
 | request_forgery_tests.rs:16:27:16:49 | ...::must_use(...) | request_forgery_tests.rs:16:13:16:15 | url | provenance |  |
@@ -46,21 +37,13 @@ edges
 | request_forgery_tests.rs:25:38:25:41 | &url [&ref] | request_forgery_tests.rs:25:25:25:36 | ...::get | provenance | MaD:1 Sink:MaD:1 |
 | request_forgery_tests.rs:25:39:25:41 | url | request_forgery_tests.rs:25:38:25:41 | &url [&ref] | provenance |  |
 | request_forgery_tests.rs:31:42:31:50 | &user_url [&ref] | request_forgery_tests.rs:31:29:31:40 | ...::get | provenance | MaD:1 Sink:MaD:1 |
-| request_forgery_tests.rs:31:42:31:50 | &user_url [&ref] | request_forgery_tests.rs:31:29:31:40 | ...::get | provenance | MaD:1 Sink:MaD:1 |
 | request_forgery_tests.rs:31:43:31:50 | user_url | request_forgery_tests.rs:31:42:31:50 | &user_url [&ref] | provenance |  |
-| request_forgery_tests.rs:31:43:31:50 | user_url | request_forgery_tests.rs:31:42:31:50 | &user_url [&ref] | provenance |  |
-| request_forgery_tests.rs:37:50:37:58 | &user_url [&ref] | request_forgery_tests.rs:37:37:37:48 | ...::get | provenance | MaD:1 Sink:MaD:1 |
 | request_forgery_tests.rs:37:50:37:58 | &user_url [&ref] | request_forgery_tests.rs:37:37:37:48 | ...::get | provenance | MaD:1 Sink:MaD:1 |
 | request_forgery_tests.rs:37:51:37:58 | user_url | request_forgery_tests.rs:37:50:37:58 | &user_url [&ref] | provenance |  |
-| request_forgery_tests.rs:37:51:37:58 | user_url | request_forgery_tests.rs:37:50:37:58 | &user_url [&ref] | provenance |  |
-| request_forgery_tests.rs:65:33:65:40 | and_then | request_forgery_tests.rs:65:49:65:57 | ...: String | provenance | Src:MaD:2  |
 | request_forgery_tests.rs:65:33:65:40 | and_then | request_forgery_tests.rs:65:49:65:57 | ...: String | provenance | Src:MaD:2  |
 | request_forgery_tests.rs:65:49:65:57 | ...: String | request_forgery_tests.rs:68:42:68:42 | a | provenance |  |
-| request_forgery_tests.rs:65:49:65:57 | ...: String | request_forgery_tests.rs:68:42:68:42 | a | provenance |  |
-| request_forgery_tests.rs:68:41:68:42 | &a [&ref] | request_forgery_tests.rs:68:28:68:39 | ...::get | provenance | MaD:1 Sink:MaD:1 |
 | request_forgery_tests.rs:68:41:68:42 | &a [&ref] | request_forgery_tests.rs:68:28:68:39 | ...::get | provenance | MaD:1 Sink:MaD:1 |
 | request_forgery_tests.rs:68:42:68:42 | a | request_forgery_tests.rs:68:41:68:42 | &a [&ref] | provenance |  |
-| request_forgery_tests.rs:68:42:68:42 | a | request_forgery_tests.rs:68:41:68:42 | &a [&ref] | provenance |  |
 models
 | 1 | Sink: reqwest::get; Argument[0]; request-url |
 | 2 | Source: <_ as warp::filter::Filter>::and_then; Argument[0].Parameter[0..7]; remote |
@@ -68,13 +51,9 @@ models
 | 4 | Summary: core::hint::must_use; Argument[0]; ReturnValue; value |
 nodes
 | request_forgery_tests.rs:5:29:5:36 | user_url | semmle.label | user_url |
-| request_forgery_tests.rs:5:29:5:36 | user_url | semmle.label | user_url |
 | request_forgery_tests.rs:8:24:8:35 | ...::get | semmle.label | ...::get |
-| request_forgery_tests.rs:8:24:8:35 | ...::get | semmle.label | ...::get |
-| request_forgery_tests.rs:8:37:8:45 | &user_url [&ref] | semmle.label | &user_url [&ref] |
 | request_forgery_tests.rs:8:37:8:45 | &user_url [&ref] | semmle.label | &user_url [&ref] |
 | request_forgery_tests.rs:8:38:8:45 | user_url | semmle.label | user_url |
-| request_forgery_tests.rs:8:38:8:45 | user_url | semmle.label | user_url |
 | request_forgery_tests.rs:16:13:16:15 | url | semmle.label | url |
 | request_forgery_tests.rs:16:27:16:49 | ...::format(...) | semmle.label | ...::format(...) |
 | request_forgery_tests.rs:16:27:16:49 | ...::must_use(...) | semmle.label | ...::must_use(...) |
@@ -100,25 +79,14 @@ nodes
 | request_forgery_tests.rs:25:38:25:41 | &url [&ref] | semmle.label | &url [&ref] |
 | request_forgery_tests.rs:25:39:25:41 | url | semmle.label | url |
 | request_forgery_tests.rs:31:29:31:40 | ...::get | semmle.label | ...::get |
-| request_forgery_tests.rs:31:29:31:40 | ...::get | semmle.label | ...::get |
 | request_forgery_tests.rs:31:42:31:50 | &user_url [&ref] | semmle.label | &user_url [&ref] |
-| request_forgery_tests.rs:31:42:31:50 | &user_url [&ref] | semmle.label | &user_url [&ref] |
-| request_forgery_tests.rs:31:43:31:50 | user_url | semmle.label | user_url |
 | request_forgery_tests.rs:31:43:31:50 | user_url | semmle.label | user_url |
 | request_forgery_tests.rs:37:37:37:48 | ...::get | semmle.label | ...::get |
-| request_forgery_tests.rs:37:37:37:48 | ...::get | semmle.label | ...::get |
-| request_forgery_tests.rs:37:50:37:58 | &user_url [&ref] | semmle.label | &user_url [&ref] |
 | request_forgery_tests.rs:37:50:37:58 | &user_url [&ref] | semmle.label | &user_url [&ref] |
 | request_forgery_tests.rs:37:51:37:58 | user_url | semmle.label | user_url |
-| request_forgery_tests.rs:37:51:37:58 | user_url | semmle.label | user_url |
-| request_forgery_tests.rs:65:33:65:40 | and_then | semmle.label | and_then |
 | request_forgery_tests.rs:65:33:65:40 | and_then | semmle.label | and_then |
 | request_forgery_tests.rs:65:49:65:57 | ...: String | semmle.label | ...: String |
-| request_forgery_tests.rs:65:49:65:57 | ...: String | semmle.label | ...: String |
-| request_forgery_tests.rs:68:28:68:39 | ...::get | semmle.label | ...::get |
 | request_forgery_tests.rs:68:28:68:39 | ...::get | semmle.label | ...::get |
 | request_forgery_tests.rs:68:41:68:42 | &a [&ref] | semmle.label | &a [&ref] |
-| request_forgery_tests.rs:68:41:68:42 | &a [&ref] | semmle.label | &a [&ref] |
-| request_forgery_tests.rs:68:42:68:42 | a | semmle.label | a |
 | request_forgery_tests.rs:68:42:68:42 | a | semmle.label | a |
 subpaths
diff --git a/rust/ql/test/query-tests/unusedentities/UnusedValue.expected b/rust/ql/test/query-tests/unusedentities/UnusedValue.expected
index c5f0f59966cb..c52863616626 100644
--- a/rust/ql/test/query-tests/unusedentities/UnusedValue.expected
+++ b/rust/ql/test/query-tests/unusedentities/UnusedValue.expected
@@ -15,8 +15,10 @@
 | main.rs:322:12:322:12 | j | Variable $@ is assigned a value that is never used. | main.rs:322:12:322:12 | j | j |
 | main.rs:382:9:382:9 | x | Variable $@ is assigned a value that is never used. | main.rs:382:9:382:9 | x | x |
 | main.rs:390:17:390:17 | x | Variable $@ is assigned a value that is never used. | main.rs:390:17:390:17 | x | x |
-| main.rs:536:9:536:20 | var_in_macro | Variable $@ is assigned a value that is never used. | main.rs:536:9:536:20 | var_in_macro | var_in_macro |
-| main.rs:545:9:545:9 | c | Variable $@ is assigned a value that is never used. | main.rs:545:9:545:9 | c | c |
+| main.rs:491:16:491:16 | a | Variable $@ is assigned a value that is never used. | main.rs:489:9:489:9 | a | a |
+| main.rs:516:41:516:41 | x | Variable $@ is assigned a value that is never used. | main.rs:515:9:515:9 | x | x |
+| main.rs:530:9:530:20 | var_in_macro | Variable $@ is assigned a value that is never used. | main.rs:530:9:530:20 | var_in_macro | var_in_macro |
+| main.rs:539:9:539:9 | c | Variable $@ is assigned a value that is never used. | main.rs:539:9:539:9 | c | c |
 | more.rs:44:9:44:14 | a_ptr4 | Variable $@ is assigned a value that is never used. | more.rs:44:9:44:14 | a_ptr4 | a_ptr4 |
 | more.rs:59:9:59:13 | d_ptr | Variable $@ is assigned a value that is never used. | more.rs:59:9:59:13 | d_ptr | d_ptr |
 | more.rs:65:13:65:17 | f_ptr | Variable $@ is assigned a value that is never used. | more.rs:65:13:65:17 | f_ptr | f_ptr |
diff --git a/rust/ql/test/query-tests/unusedentities/main.rs b/rust/ql/test/query-tests/unusedentities/main.rs
index 01b7cc14bc8c..a08a05a83bde 100644
--- a/rust/ql/test/query-tests/unusedentities/main.rs
+++ b/rust/ql/test/query-tests/unusedentities/main.rs
@@ -488,7 +488,7 @@ macro_rules! use_value {
 fn macros1() {
     let a: u16;
     let b: u16 = 2;
-    set_value!(a, 1);
+    set_value!(a, 1); // $ Alert[rust/unused-value]
     use_value!(b);
 
     match std::env::args().nth(1).unwrap().parse::<u16>() {
@@ -513,13 +513,7 @@ fn macros2() {
 
 fn macros3() {
     let x;
-    println!(
-        "The value of x is {}",
-        ({
-            x = 10; // $ MISSING: Alert[rust/unused-value]
-            10
-        })
-    );
+    println!("The value of x is {}", ({ x = 10; 10 })); // $ Alert[rust/unused-value]
 }
 
 macro_rules! let_in_macro {
diff --git a/swift/ql/.generated.list b/swift/ql/.generated.list
index 1d3e3da7e3ee..8d2fb9a2ebca 100644
--- a/swift/ql/.generated.list
+++ b/swift/ql/.generated.list
@@ -737,10 +737,10 @@ lib/codeql/swift/generated/KeyPathComponent.qll e11dcf952045b5e6062e24c23515cff9
 lib/codeql/swift/generated/Locatable.qll 1d37fa20de71c0b9986bfd7a7c0cb82ab7bf3fda2d2008700f955ad82ce109a7 e97d4d4fb8a4800e0008cc00f60c8ed9b1ebd5f1140fd85e68b034616178d721
 lib/codeql/swift/generated/Location.qll 5e20316c3e480ddfe632b7e88e016c19f10a67df1f6ae9c8f128755a6907d6f5 5a0af2d070bcb2ed53d6d0282bf9c60dc64c2dce89c21fdd485e9c7893c1c8fa
 lib/codeql/swift/generated/MacroRole.qll facf907e75490d69cd401c491215e4719324d751f40ea46c86ccf24cf3663c1f 969d8d4b44e3f1a9c193a152a4d83a303e56d2dbb871fc920c47a33f699cf018
-lib/codeql/swift/generated/ParentChild.qll 4d697f5372ad82380dc375a59fa0619ee56c7d88be58530147cd8e160262bbe3 e164b712a41f20d0b9986804cd753fb5e55ceb55139234d98bdb332a8f248db4
+lib/codeql/swift/generated/ParentChild.qll 7fdc133bdec6cc223d5ee85e757b02c5d2e1ab121bcf269bb48c8a12a31a61e9 d8dd6e21d290a293db4db510b1523a9ea428b12f48b7574f03acf00b9ca065ef
 lib/codeql/swift/generated/PureSynthConstructors.qll bc31a6c4d142fa3fbdcae69d5ba6f1cec00eb9ad92b46c8d7b91ebfa7ef6c1f4 bc31a6c4d142fa3fbdcae69d5ba6f1cec00eb9ad92b46c8d7b91ebfa7ef6c1f4
-lib/codeql/swift/generated/Raw.qll f7dd5c3eb1afba1077dd6c291502e2b5dd5d18000ee581f7e3ad4f0050165c69 f042929df4651dfe587769cd3f539d07f97328c2fe17fbe19cbb8e4fbefe97f2
-lib/codeql/swift/generated/Synth.qll 6af0f5778c6c6a9d9a518c00707501c3fdb3ccaa96fa06793549c2b1f28c9cbb 575829e7a2a4c7619c6d98f1b7ec47d978d0b3d77d5c1a87eae5e9f98612ef5b
+lib/codeql/swift/generated/Raw.qll 6adc2ec210e91051b6d3d6c84117b827f10dbea682a18b69348d1c6cdc53629c 9ff02fcca7a7b83c85303ffc6daa00ea392da6ce1f9cb389b5053b34d4a45e4c
+lib/codeql/swift/generated/Synth.qll b0084d1f573ba1b10ec8a8fab169b15f15866ecb9a6aeeeac81553a442be28e3 09efe455f3fd6b8b983b30efbd797f09af46e6f5a1a1075801650528999ed938
 lib/codeql/swift/generated/SynthConstructors.qll c40f01e1331bdbe238620a41d17409cefe34a6b23066708ef5d74f8631b54f48 c40f01e1331bdbe238620a41d17409cefe34a6b23066708ef5d74f8631b54f48
 lib/codeql/swift/generated/UnknownFile.qll 247ddf2ebb49ce5ed4bf7bf91a969ddff37de6c78d43d8affccaf7eb586e06f2 452b29f0465ef45e978ef8b647b75e5a2a1e53f2a568fc003bc8f52f73b3fa4d
 lib/codeql/swift/generated/UnknownLocation.qll d871000b4f53ffca4f67ea23ca5626e5dcce125d62a4d4b9969e08cc974af6fc b05971d7774e60790362fb810fb7086314f40a2de747b8cb1bc823ec6494a4dd
diff --git a/swift/ql/lib/codeql/swift/generated/ParentChild.qll b/swift/ql/lib/codeql/swift/generated/ParentChild.qll
index 28b92e4902ae..efed12bb5fe0 100644
--- a/swift/ql/lib/codeql/swift/generated/ParentChild.qll
+++ b/swift/ql/lib/codeql/swift/generated/ParentChild.qll
@@ -45,7 +45,7 @@ private module Impl {
   ) {
     exists(int n, int nSpec |
       n = 0 and
-      nSpec = n + 1 + max(int i | i = -1 or exists(e.getSpec(i)) | i) and
+      nSpec = n + e.getNumberOfSpecs() and
       (
         none()
         or
@@ -66,7 +66,7 @@ private module Impl {
   ) {
     exists(int n, int nSubscriptArgument |
       n = 0 and
-      nSubscriptArgument = n + 1 + max(int i | i = -1 or exists(e.getSubscriptArgument(i)) | i) and
+      nSubscriptArgument = n + e.getNumberOfSubscriptArguments() and
       (
         none()
         or
@@ -100,7 +100,7 @@ private module Impl {
   ) {
     exists(int n, int nMember |
       n = 0 and
-      nMember = n + 1 + max(int i | i = -1 or exists(e.getMember(i)) | i) and
+      nMember = n + e.getNumberOfMembers() and
       (
         none()
         or
@@ -115,7 +115,7 @@ private module Impl {
   ) {
     exists(int n, int nMember |
       n = 0 and
-      nMember = n + 1 + max(int i | i = -1 or exists(e.getMember(i)) | i) and
+      nMember = n + e.getNumberOfMembers() and
       (
         none()
         or
@@ -130,8 +130,8 @@ private module Impl {
   ) {
     exists(int n, int nGenericTypeParam, int nMember |
       n = 0 and
-      nGenericTypeParam = n + 1 + max(int i | i = -1 or exists(e.getGenericTypeParam(i)) | i) and
-      nMember = nGenericTypeParam + 1 + max(int i | i = -1 or exists(e.getMember(i)) | i) and
+      nGenericTypeParam = n + e.getNumberOfGenericTypeParams() and
+      nMember = nGenericTypeParam + e.getNumberOfMembers() and
       (
         none()
         or
@@ -149,7 +149,7 @@ private module Impl {
   ) {
     exists(int n, int nMember |
       n = 0 and
-      nMember = n + 1 + max(int i | i = -1 or exists(e.getMember(i)) | i) and
+      nMember = n + e.getNumberOfMembers() and
       (
         none()
         or
@@ -162,7 +162,7 @@ private module Impl {
   private Element getImmediateChildOfImportDecl(ImportDecl e, int index, string partialPredicateCall) {
     exists(int n, int nMember |
       n = 0 and
-      nMember = n + 1 + max(int i | i = -1 or exists(e.getMember(i)) | i) and
+      nMember = n + e.getNumberOfMembers() and
       (
         none()
         or
@@ -177,7 +177,7 @@ private module Impl {
   ) {
     exists(int n, int nMember |
       n = 0 and
-      nMember = n + 1 + max(int i | i = -1 or exists(e.getMember(i)) | i) and
+      nMember = n + e.getNumberOfMembers() and
       (
         none()
         or
@@ -192,7 +192,7 @@ private module Impl {
   ) {
     exists(int n, int nMember, int nInit, int nPattern |
       n = 0 and
-      nMember = n + 1 + max(int i | i = -1 or exists(e.getMember(i)) | i) and
+      nMember = n + e.getNumberOfMembers() and
       nInit = nMember + 1 + max(int i | i = -1 or exists(e.getImmediateInit(i)) | i) and
       nPattern = nInit + 1 + max(int i | i = -1 or exists(e.getImmediatePattern(i)) | i) and
       (
@@ -215,7 +215,7 @@ private module Impl {
   ) {
     exists(int n, int nMember, int nMessage |
       n = 0 and
-      nMember = n + 1 + max(int i | i = -1 or exists(e.getMember(i)) | i) and
+      nMember = n + e.getNumberOfMembers() and
       nMessage = nMember + 1 and
       (
         none()
@@ -233,7 +233,7 @@ private module Impl {
   ) {
     exists(int n, int nMember |
       n = 0 and
-      nMember = n + 1 + max(int i | i = -1 or exists(e.getMember(i)) | i) and
+      nMember = n + e.getNumberOfMembers() and
       (
         none()
         or
@@ -248,7 +248,7 @@ private module Impl {
   ) {
     exists(int n, int nMember, int nBody |
       n = 0 and
-      nMember = n + 1 + max(int i | i = -1 or exists(e.getMember(i)) | i) and
+      nMember = n + e.getNumberOfMembers() and
       nBody = nMember + 1 and
       (
         none()
@@ -264,7 +264,7 @@ private module Impl {
   private Element getImmediateChildOfUsingDecl(UsingDecl e, int index, string partialPredicateCall) {
     exists(int n, int nMember |
       n = 0 and
-      nMember = n + 1 + max(int i | i = -1 or exists(e.getMember(i)) | i) and
+      nMember = n + e.getNumberOfMembers() and
       (
         none()
         or
@@ -279,8 +279,8 @@ private module Impl {
   ) {
     exists(int n, int nMember, int nParam |
       n = 0 and
-      nMember = n + 1 + max(int i | i = -1 or exists(e.getMember(i)) | i) and
-      nParam = nMember + 1 + max(int i | i = -1 or exists(e.getParam(i)) | i) and
+      nMember = n + e.getNumberOfMembers() and
+      nParam = nMember + e.getNumberOfParams() and
       (
         none()
         or
@@ -298,7 +298,7 @@ private module Impl {
   ) {
     exists(int n, int nMember |
       n = 0 and
-      nMember = n + 1 + max(int i | i = -1 or exists(e.getMember(i)) | i) and
+      nMember = n + e.getNumberOfMembers() and
       (
         none()
         or
@@ -311,8 +311,8 @@ private module Impl {
   private Element getImmediateChildOfMacroDecl(MacroDecl e, int index, string partialPredicateCall) {
     exists(int n, int nGenericTypeParam, int nMember |
       n = 0 and
-      nGenericTypeParam = n + 1 + max(int i | i = -1 or exists(e.getGenericTypeParam(i)) | i) and
-      nMember = nGenericTypeParam + 1 + max(int i | i = -1 or exists(e.getMember(i)) | i) and
+      nGenericTypeParam = n + e.getNumberOfGenericTypeParams() and
+      nMember = nGenericTypeParam + e.getNumberOfMembers() and
       (
         none()
         or
@@ -330,7 +330,7 @@ private module Impl {
   ) {
     exists(int n, int nMember |
       n = 0 and
-      nMember = n + 1 + max(int i | i = -1 or exists(e.getMember(i)) | i) and
+      nMember = n + e.getNumberOfMembers() and
       (
         none()
         or
@@ -345,7 +345,7 @@ private module Impl {
   ) {
     exists(int n, int nMember |
       n = 0 and
-      nMember = n + 1 + max(int i | i = -1 or exists(e.getMember(i)) | i) and
+      nMember = n + e.getNumberOfMembers() and
       (
         none()
         or
@@ -362,12 +362,12 @@ private module Impl {
       int n, int nGenericTypeParam, int nMember, int nSelfParam, int nParam, int nBody, int nCapture
     |
       n = 0 and
-      nGenericTypeParam = n + 1 + max(int i | i = -1 or exists(e.getGenericTypeParam(i)) | i) and
-      nMember = nGenericTypeParam + 1 + max(int i | i = -1 or exists(e.getMember(i)) | i) and
+      nGenericTypeParam = n + e.getNumberOfGenericTypeParams() and
+      nMember = nGenericTypeParam + e.getNumberOfMembers() and
       nSelfParam = nMember + 1 and
-      nParam = nSelfParam + 1 + max(int i | i = -1 or exists(e.getParam(i)) | i) and
+      nParam = nSelfParam + e.getNumberOfParams() and
       nBody = nParam + 1 and
-      nCapture = nBody + 1 + max(int i | i = -1 or exists(e.getCapture(i)) | i) and
+      nCapture = nBody + e.getNumberOfCaptures() and
       (
         none()
         or
@@ -397,12 +397,12 @@ private module Impl {
       int n, int nGenericTypeParam, int nMember, int nSelfParam, int nParam, int nBody, int nCapture
     |
       n = 0 and
-      nGenericTypeParam = n + 1 + max(int i | i = -1 or exists(e.getGenericTypeParam(i)) | i) and
-      nMember = nGenericTypeParam + 1 + max(int i | i = -1 or exists(e.getMember(i)) | i) and
+      nGenericTypeParam = n + e.getNumberOfGenericTypeParams() and
+      nMember = nGenericTypeParam + e.getNumberOfMembers() and
       nSelfParam = nMember + 1 and
-      nParam = nSelfParam + 1 + max(int i | i = -1 or exists(e.getParam(i)) | i) and
+      nParam = nSelfParam + e.getNumberOfParams() and
       nBody = nParam + 1 and
-      nCapture = nBody + 1 + max(int i | i = -1 or exists(e.getCapture(i)) | i) and
+      nCapture = nBody + e.getNumberOfCaptures() and
       (
         none()
         or
@@ -428,7 +428,7 @@ private module Impl {
   private Element getImmediateChildOfModuleDecl(ModuleDecl e, int index, string partialPredicateCall) {
     exists(int n, int nMember |
       n = 0 and
-      nMember = n + 1 + max(int i | i = -1 or exists(e.getMember(i)) | i) and
+      nMember = n + e.getNumberOfMembers() and
       (
         none()
         or
@@ -443,11 +443,10 @@ private module Impl {
   ) {
     exists(int n, int nMember, int nAccessor, int nGenericTypeParam, int nParam |
       n = 0 and
-      nMember = n + 1 + max(int i | i = -1 or exists(e.getMember(i)) | i) and
-      nAccessor = nMember + 1 + max(int i | i = -1 or exists(e.getAccessor(i)) | i) and
-      nGenericTypeParam =
-        nAccessor + 1 + max(int i | i = -1 or exists(e.getGenericTypeParam(i)) | i) and
-      nParam = nGenericTypeParam + 1 + max(int i | i = -1 or exists(e.getParam(i)) | i) and
+      nMember = n + e.getNumberOfMembers() and
+      nAccessor = nMember + e.getNumberOfAccessors() and
+      nGenericTypeParam = nAccessor + e.getNumberOfGenericTypeParams() and
+      nParam = nGenericTypeParam + e.getNumberOfParams() and
       (
         none()
         or
@@ -471,12 +470,12 @@ private module Impl {
       int n, int nGenericTypeParam, int nMember, int nSelfParam, int nParam, int nBody, int nCapture
     |
       n = 0 and
-      nGenericTypeParam = n + 1 + max(int i | i = -1 or exists(e.getGenericTypeParam(i)) | i) and
-      nMember = nGenericTypeParam + 1 + max(int i | i = -1 or exists(e.getMember(i)) | i) and
+      nGenericTypeParam = n + e.getNumberOfGenericTypeParams() and
+      nMember = nGenericTypeParam + e.getNumberOfMembers() and
       nSelfParam = nMember + 1 and
-      nParam = nSelfParam + 1 + max(int i | i = -1 or exists(e.getParam(i)) | i) and
+      nParam = nSelfParam + e.getNumberOfParams() and
       nBody = nParam + 1 and
-      nCapture = nBody + 1 + max(int i | i = -1 or exists(e.getCapture(i)) | i) and
+      nCapture = nBody + e.getNumberOfCaptures() and
       (
         none()
         or
@@ -504,7 +503,7 @@ private module Impl {
   ) {
     exists(int n, int nMember |
       n = 0 and
-      nMember = n + 1 + max(int i | i = -1 or exists(e.getMember(i)) | i) and
+      nMember = n + e.getNumberOfMembers() and
       (
         none()
         or
@@ -523,8 +522,8 @@ private module Impl {
       int nPropertyWrapperProjectionVar
     |
       n = 0 and
-      nMember = n + 1 + max(int i | i = -1 or exists(e.getMember(i)) | i) and
-      nAccessor = nMember + 1 + max(int i | i = -1 or exists(e.getAccessor(i)) | i) and
+      nMember = n + e.getNumberOfMembers() and
+      nAccessor = nMember + e.getNumberOfAccessors() and
       nPropertyWrapperBackingVarBinding = nAccessor + 1 and
       nPropertyWrapperBackingVar = nPropertyWrapperBackingVarBinding + 1 and
       nPropertyWrapperProjectionVarBinding = nPropertyWrapperBackingVar + 1 and
@@ -562,7 +561,7 @@ private module Impl {
   ) {
     exists(int n, int nMember |
       n = 0 and
-      nMember = n + 1 + max(int i | i = -1 or exists(e.getMember(i)) | i) and
+      nMember = n + e.getNumberOfMembers() and
       (
         none()
         or
@@ -579,12 +578,12 @@ private module Impl {
       int n, int nGenericTypeParam, int nMember, int nSelfParam, int nParam, int nBody, int nCapture
     |
       n = 0 and
-      nGenericTypeParam = n + 1 + max(int i | i = -1 or exists(e.getGenericTypeParam(i)) | i) and
-      nMember = nGenericTypeParam + 1 + max(int i | i = -1 or exists(e.getMember(i)) | i) and
+      nGenericTypeParam = n + e.getNumberOfGenericTypeParams() and
+      nMember = nGenericTypeParam + e.getNumberOfMembers() and
       nSelfParam = nMember + 1 and
-      nParam = nSelfParam + 1 + max(int i | i = -1 or exists(e.getParam(i)) | i) and
+      nParam = nSelfParam + e.getNumberOfParams() and
       nBody = nParam + 1 and
-      nCapture = nBody + 1 + max(int i | i = -1 or exists(e.getCapture(i)) | i) and
+      nCapture = nBody + e.getNumberOfCaptures() and
       (
         none()
         or
@@ -612,8 +611,8 @@ private module Impl {
   ) {
     exists(int n, int nGenericTypeParam, int nMember |
       n = 0 and
-      nGenericTypeParam = n + 1 + max(int i | i = -1 or exists(e.getGenericTypeParam(i)) | i) and
-      nMember = nGenericTypeParam + 1 + max(int i | i = -1 or exists(e.getMember(i)) | i) and
+      nGenericTypeParam = n + e.getNumberOfGenericTypeParams() and
+      nMember = nGenericTypeParam + e.getNumberOfMembers() and
       (
         none()
         or
@@ -634,8 +633,8 @@ private module Impl {
       int nPropertyWrapperLocalWrappedVar
     |
       n = 0 and
-      nMember = n + 1 + max(int i | i = -1 or exists(e.getMember(i)) | i) and
-      nAccessor = nMember + 1 + max(int i | i = -1 or exists(e.getAccessor(i)) | i) and
+      nMember = n + e.getNumberOfMembers() and
+      nAccessor = nMember + e.getNumberOfAccessors() and
       nPropertyWrapperBackingVarBinding = nAccessor + 1 and
       nPropertyWrapperBackingVar = nPropertyWrapperBackingVarBinding + 1 and
       nPropertyWrapperProjectionVarBinding = nPropertyWrapperBackingVar + 1 and
@@ -683,8 +682,8 @@ private module Impl {
   ) {
     exists(int n, int nGenericTypeParam, int nMember |
       n = 0 and
-      nGenericTypeParam = n + 1 + max(int i | i = -1 or exists(e.getGenericTypeParam(i)) | i) and
-      nMember = nGenericTypeParam + 1 + max(int i | i = -1 or exists(e.getMember(i)) | i) and
+      nGenericTypeParam = n + e.getNumberOfGenericTypeParams() and
+      nMember = nGenericTypeParam + e.getNumberOfMembers() and
       (
         none()
         or
@@ -700,8 +699,8 @@ private module Impl {
   private Element getImmediateChildOfClassDecl(ClassDecl e, int index, string partialPredicateCall) {
     exists(int n, int nGenericTypeParam, int nMember |
       n = 0 and
-      nGenericTypeParam = n + 1 + max(int i | i = -1 or exists(e.getGenericTypeParam(i)) | i) and
-      nMember = nGenericTypeParam + 1 + max(int i | i = -1 or exists(e.getMember(i)) | i) and
+      nGenericTypeParam = n + e.getNumberOfGenericTypeParams() and
+      nMember = nGenericTypeParam + e.getNumberOfMembers() and
       (
         none()
         or
@@ -717,8 +716,8 @@ private module Impl {
   private Element getImmediateChildOfEnumDecl(EnumDecl e, int index, string partialPredicateCall) {
     exists(int n, int nGenericTypeParam, int nMember |
       n = 0 and
-      nGenericTypeParam = n + 1 + max(int i | i = -1 or exists(e.getGenericTypeParam(i)) | i) and
-      nMember = nGenericTypeParam + 1 + max(int i | i = -1 or exists(e.getMember(i)) | i) and
+      nGenericTypeParam = n + e.getNumberOfGenericTypeParams() and
+      nMember = nGenericTypeParam + e.getNumberOfMembers() and
       (
         none()
         or
@@ -736,8 +735,8 @@ private module Impl {
   ) {
     exists(int n, int nGenericTypeParam, int nMember |
       n = 0 and
-      nGenericTypeParam = n + 1 + max(int i | i = -1 or exists(e.getGenericTypeParam(i)) | i) and
-      nMember = nGenericTypeParam + 1 + max(int i | i = -1 or exists(e.getMember(i)) | i) and
+      nGenericTypeParam = n + e.getNumberOfGenericTypeParams() and
+      nMember = nGenericTypeParam + e.getNumberOfMembers() and
       (
         none()
         or
@@ -753,8 +752,8 @@ private module Impl {
   private Element getImmediateChildOfStructDecl(StructDecl e, int index, string partialPredicateCall) {
     exists(int n, int nGenericTypeParam, int nMember |
       n = 0 and
-      nGenericTypeParam = n + 1 + max(int i | i = -1 or exists(e.getGenericTypeParam(i)) | i) and
-      nMember = nGenericTypeParam + 1 + max(int i | i = -1 or exists(e.getMember(i)) | i) and
+      nGenericTypeParam = n + e.getNumberOfGenericTypeParams() and
+      nMember = nGenericTypeParam + e.getNumberOfMembers() and
       (
         none()
         or
@@ -827,8 +826,8 @@ private module Impl {
   ) {
     exists(int n, int nBindingDecl, int nVariable, int nClosureBody |
       n = 0 and
-      nBindingDecl = n + 1 + max(int i | i = -1 or exists(e.getBindingDecl(i)) | i) and
-      nVariable = nBindingDecl + 1 + max(int i | i = -1 or exists(e.getVariable(i)) | i) and
+      nBindingDecl = n + e.getNumberOfBindingDecls() and
+      nVariable = nBindingDecl + e.getNumberOfVariables() and
       nClosureBody = nVariable + 1 and
       (
         none()
@@ -1040,7 +1039,7 @@ private module Impl {
     exists(int n, int nRoot, int nComponent |
       n = 0 and
       nRoot = n + 1 and
-      nComponent = nRoot + 1 + max(int i | i = -1 or exists(e.getComponent(i)) | i) and
+      nComponent = nRoot + e.getNumberOfComponents() and
       (
         none()
         or
@@ -1493,9 +1492,9 @@ private module Impl {
     exists(int n, int nSelfParam, int nParam, int nBody, int nCapture |
       n = 0 and
       nSelfParam = n + 1 and
-      nParam = nSelfParam + 1 + max(int i | i = -1 or exists(e.getParam(i)) | i) and
+      nParam = nSelfParam + e.getNumberOfParams() and
       nBody = nParam + 1 and
-      nCapture = nBody + 1 + max(int i | i = -1 or exists(e.getCapture(i)) | i) and
+      nCapture = nBody + e.getNumberOfCaptures() and
       (
         none()
         or
@@ -1528,7 +1527,7 @@ private module Impl {
     exists(int n, int nFunction, int nArgument |
       n = 0 and
       nFunction = n + 1 and
-      nArgument = nFunction + 1 + max(int i | i = -1 or exists(e.getArgument(i)) | i) and
+      nArgument = nFunction + e.getNumberOfArguments() and
       (
         none()
         or
@@ -1584,7 +1583,7 @@ private module Impl {
     exists(int n, int nFunction, int nArgument |
       n = 0 and
       nFunction = n + 1 and
-      nArgument = nFunction + 1 + max(int i | i = -1 or exists(e.getArgument(i)) | i) and
+      nArgument = nFunction + e.getNumberOfArguments() and
       (
         none()
         or
@@ -1797,9 +1796,9 @@ private module Impl {
     exists(int n, int nSelfParam, int nParam, int nBody, int nCapture |
       n = 0 and
       nSelfParam = n + 1 and
-      nParam = nSelfParam + 1 + max(int i | i = -1 or exists(e.getParam(i)) | i) and
+      nParam = nSelfParam + e.getNumberOfParams() and
       nBody = nParam + 1 and
-      nCapture = nBody + 1 + max(int i | i = -1 or exists(e.getCapture(i)) | i) and
+      nCapture = nBody + e.getNumberOfCaptures() and
       (
         none()
         or
@@ -2014,7 +2013,7 @@ private module Impl {
   ) {
     exists(int n, int nArgument |
       n = 0 and
-      nArgument = n + 1 + max(int i | i = -1 or exists(e.getArgument(i)) | i) and
+      nArgument = n + e.getNumberOfArguments() and
       (
         none()
         or
@@ -2070,7 +2069,7 @@ private module Impl {
     exists(int n, int nFunction, int nArgument |
       n = 0 and
       nFunction = n + 1 and
-      nArgument = nFunction + 1 + max(int i | i = -1 or exists(e.getArgument(i)) | i) and
+      nArgument = nFunction + e.getNumberOfArguments() and
       (
         none()
         or
@@ -2088,7 +2087,7 @@ private module Impl {
     exists(int n, int nFunction, int nArgument |
       n = 0 and
       nFunction = n + 1 and
-      nArgument = nFunction + 1 + max(int i | i = -1 or exists(e.getArgument(i)) | i) and
+      nArgument = nFunction + e.getNumberOfArguments() and
       (
         none()
         or
@@ -2140,7 +2139,7 @@ private module Impl {
     exists(int n, int nBase, int nArgument |
       n = 0 and
       nBase = n + 1 and
-      nArgument = nBase + 1 + max(int i | i = -1 or exists(e.getArgument(i)) | i) and
+      nArgument = nBase + e.getNumberOfArguments() and
       (
         none()
         or
@@ -2286,7 +2285,7 @@ private module Impl {
     exists(int n, int nFunction, int nArgument |
       n = 0 and
       nFunction = n + 1 and
-      nArgument = nFunction + 1 + max(int i | i = -1 or exists(e.getArgument(i)) | i) and
+      nArgument = nFunction + e.getNumberOfArguments() and
       (
         none()
         or
@@ -2346,7 +2345,7 @@ private module Impl {
     exists(int n, int nFunction, int nArgument |
       n = 0 and
       nFunction = n + 1 and
-      nArgument = nFunction + 1 + max(int i | i = -1 or exists(e.getArgument(i)) | i) and
+      nArgument = nFunction + e.getNumberOfArguments() and
       (
         none()
         or
@@ -2578,7 +2577,7 @@ private module Impl {
   ) {
     exists(int n, int nElement |
       n = 0 and
-      nElement = n + 1 + max(int i | i = -1 or exists(e.getElement(i)) | i) and
+      nElement = n + e.getNumberOfElements() and
       (
         none()
         or
@@ -2591,7 +2590,7 @@ private module Impl {
   private Element getImmediateChildOfBraceStmt(BraceStmt e, int index, string partialPredicateCall) {
     exists(int n, int nVariable, int nElement |
       n = 0 and
-      nVariable = n + 1 + max(int i | i = -1 or exists(e.getVariable(i)) | i) and
+      nVariable = n + e.getNumberOfVariables() and
       nElement = nVariable + 1 + max(int i | i = -1 or exists(e.getImmediateElement(i)) | i) and
       (
         none()
@@ -2612,8 +2611,8 @@ private module Impl {
   private Element getImmediateChildOfCaseStmt(CaseStmt e, int index, string partialPredicateCall) {
     exists(int n, int nLabel, int nVariable, int nBody |
       n = 0 and
-      nLabel = n + 1 + max(int i | i = -1 or exists(e.getLabel(i)) | i) and
-      nVariable = nLabel + 1 + max(int i | i = -1 or exists(e.getVariable(i)) | i) and
+      nLabel = n + e.getNumberOfLabels() and
+      nVariable = nLabel + e.getNumberOfVariables() and
       nBody = nVariable + 1 and
       (
         none()
@@ -2732,7 +2731,7 @@ private module Impl {
     exists(int n, int nBody, int nCatch |
       n = 0 and
       nBody = n + 1 and
-      nCatch = nBody + 1 + max(int i | i = -1 or exists(e.getCatch(i)) | i) and
+      nCatch = nBody + e.getNumberOfCatches() and
       (
         none()
         or
@@ -2763,7 +2762,7 @@ private module Impl {
       int n, int nVariable, int nPattern, int nWhere, int nIteratorVar, int nNextCall, int nBody
     |
       n = 0 and
-      nVariable = n + 1 + max(int i | i = -1 or exists(e.getVariable(i)) | i) and
+      nVariable = n + e.getNumberOfVariables() and
       nPattern = nVariable + 1 and
       nWhere = nPattern + 1 and
       nIteratorVar = nWhere + 1 and
@@ -2813,7 +2812,7 @@ private module Impl {
     exists(int n, int nExpr, int nCase |
       n = 0 and
       nExpr = n + 1 and
-      nCase = nExpr + 1 + max(int i | i = -1 or exists(e.getCase(i)) | i) and
+      nCase = nExpr + e.getNumberOfCases() and
       (
         none()
         or
diff --git a/swift/ql/lib/codeql/swift/generated/Raw.qll b/swift/ql/lib/codeql/swift/generated/Raw.qll
index 39bc6ac7373d..714579218bcb 100644
--- a/swift/ql/lib/codeql/swift/generated/Raw.qll
+++ b/swift/ql/lib/codeql/swift/generated/Raw.qll
@@ -87,6 +87,8 @@ module Raw {
     string getText() { comments(this, result) }
   }
 
+  private Element getImmediateChildOfComment(Comment e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -94,6 +96,8 @@ module Raw {
     override string toString() { result = "DbFile" }
   }
 
+  private Element getImmediateChildOfDbFile(DbFile e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -101,6 +105,8 @@ module Raw {
     override string toString() { result = "DbLocation" }
   }
 
+  private Element getImmediateChildOfDbLocation(DbLocation e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -118,6 +124,8 @@ module Raw {
     int getKind() { diagnostics(this, _, result) }
   }
 
+  private Element getImmediateChildOfDiagnostics(Diagnostics e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    * The superclass of all elements indicating some kind of error.
@@ -152,6 +160,23 @@ module Raw {
      * Gets the `index`th spec of this availability info (0-based).
      */
     AvailabilitySpec getSpec(int index) { availability_info_specs(this, index, result) }
+
+    /**
+     * Gets the number of specs of this availability info.
+     */
+    int getNumberOfSpecs() { result = count(int i | availability_info_specs(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfAvailabilityInfo(AvailabilityInfo e, int index) {
+    exists(int n, int nSpec |
+      n = 0 and
+      nSpec = n + e.getNumberOfSpecs() and
+      (
+        none()
+        or
+        result = e.getSpec(index - n)
+      )
+    )
   }
 
   /**
@@ -180,6 +205,8 @@ module Raw {
     predicate isWildcard() { availability_spec_is_wildcard(this) }
   }
 
+  private Element getImmediateChildOfAvailabilitySpec(AvailabilitySpec e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -201,6 +228,11 @@ module Raw {
      */
     ParamDecl getParam(int index) { callable_params(this, index, result) }
 
+    /**
+     * Gets the number of parameters of this callable.
+     */
+    int getNumberOfParams() { result = count(int i | callable_params(this, i, _)) }
+
     /**
      * Gets the body of this callable, if it exists.
      *
@@ -212,6 +244,11 @@ module Raw {
      * Gets the `index`th capture of this callable (0-based).
      */
     CapturedDecl getCapture(int index) { callable_captures(this, index, result) }
+
+    /**
+     * Gets the number of captures of this callable.
+     */
+    int getNumberOfCaptures() { result = count(int i | callable_captures(this, i, _)) }
   }
 
   /**
@@ -243,6 +280,13 @@ module Raw {
       key_path_component_subscript_arguments(this, index, result)
     }
 
+    /**
+     * Gets the number of arguments to an array or dictionary subscript expression.
+     */
+    int getNumberOfSubscriptArguments() {
+      result = count(int i | key_path_component_subscript_arguments(this, i, _))
+    }
+
     /**
      * Gets the tuple index of this key path component, if it exists.
      */
@@ -263,6 +307,18 @@ module Raw {
     Type getComponentType() { key_path_components(this, _, result) }
   }
 
+  private Element getImmediateChildOfKeyPathComponent(KeyPathComponent e, int index) {
+    exists(int n, int nSubscriptArgument |
+      n = 0 and
+      nSubscriptArgument = n + e.getNumberOfSubscriptArguments() and
+      (
+        none()
+        or
+        result = e.getSubscriptArgument(index - n)
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * The role of a macro, for example #freestanding(declaration) or @attached(member).
@@ -285,12 +341,24 @@ module Raw {
      */
     Expr getConformance(int index) { macro_role_conformances(this, index, result) }
 
+    /**
+     * Gets the number of conformances of this macro role.
+     */
+    int getNumberOfConformances() { result = count(int i | macro_role_conformances(this, i, _)) }
+
     /**
      * Gets the `index`th name of this macro role (0-based).
      */
     string getName(int index) { macro_role_names(this, index, result) }
+
+    /**
+     * Gets the number of names of this macro role.
+     */
+    int getNumberOfNames() { result = count(int i | macro_role_names(this, i, _)) }
   }
 
+  private Element getImmediateChildOfMacroRole(MacroRole e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -323,6 +391,23 @@ module Raw {
      * These will be present only in certain downgraded databases.
      */
     AstNode getChild(int index) { unspecified_element_children(this, index, result) }
+
+    /**
+     * Gets the number of children of this unspecified element.
+     */
+    int getNumberOfChildren() { result = count(int i | unspecified_element_children(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfUnspecifiedElement(UnspecifiedElement e, int index) {
+    exists(int n, int nChild |
+      n = 0 and
+      nChild = n + e.getNumberOfChildren() and
+      (
+        none()
+        or
+        result = e.getChild(index - n)
+      )
+    )
   }
 
   /**
@@ -342,6 +427,11 @@ module Raw {
      * align with expectations, and could change in future releases.
      */
     Decl getMember(int index) { decl_members(this, index, result) }
+
+    /**
+     * Gets the number of members of this declaration.
+     */
+    int getNumberOfMembers() { result = count(int i | decl_members(this, i, _)) }
   }
 
   /**
@@ -354,6 +444,13 @@ module Raw {
     GenericTypeParamDecl getGenericTypeParam(int index) {
       generic_context_generic_type_params(this, index, result)
     }
+
+    /**
+     * Gets the number of generic type parameters of this generic context.
+     */
+    int getNumberOfGenericTypeParams() {
+      result = count(int i | generic_context_generic_type_params(this, i, _))
+    }
   }
 
   /**
@@ -378,6 +475,18 @@ module Raw {
     predicate isEscaping() { captured_decl_is_escaping(this) }
   }
 
+  private Element getImmediateChildOfCapturedDecl(CapturedDecl e, int index) {
+    exists(int n, int nMember |
+      n = 0 and
+      nMember = n + e.getNumberOfMembers() and
+      (
+        none()
+        or
+        result = e.getMember(index - n)
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -388,6 +497,23 @@ module Raw {
      * Gets the `index`th element of this enum case declaration (0-based).
      */
     EnumElementDecl getElement(int index) { enum_case_decl_elements(this, index, result) }
+
+    /**
+     * Gets the number of elements of this enum case declaration.
+     */
+    int getNumberOfElements() { result = count(int i | enum_case_decl_elements(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfEnumCaseDecl(EnumCaseDecl e, int index) {
+    exists(int n, int nMember |
+      n = 0 and
+      nMember = n + e.getNumberOfMembers() and
+      (
+        none()
+        or
+        result = e.getMember(index - n)
+      )
+    )
   }
 
   /**
@@ -405,6 +531,26 @@ module Raw {
      * Gets the `index`th protocol of this extension declaration (0-based).
      */
     ProtocolDecl getProtocol(int index) { extension_decl_protocols(this, index, result) }
+
+    /**
+     * Gets the number of protocols of this extension declaration.
+     */
+    int getNumberOfProtocols() { result = count(int i | extension_decl_protocols(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfExtensionDecl(ExtensionDecl e, int index) {
+    exists(int n, int nGenericTypeParam, int nMember |
+      n = 0 and
+      nGenericTypeParam = n + e.getNumberOfGenericTypeParams() and
+      nMember = nGenericTypeParam + e.getNumberOfMembers() and
+      (
+        none()
+        or
+        result = e.getGenericTypeParam(index - n)
+        or
+        result = e.getMember(index - nGenericTypeParam)
+      )
+    )
   }
 
   /**
@@ -417,6 +563,25 @@ module Raw {
      * Gets the `index`th active element of this if config declaration (0-based).
      */
     AstNode getActiveElement(int index) { if_config_decl_active_elements(this, index, result) }
+
+    /**
+     * Gets the number of active elements of this if config declaration.
+     */
+    int getNumberOfActiveElements() {
+      result = count(int i | if_config_decl_active_elements(this, i, _))
+    }
+  }
+
+  private Element getImmediateChildOfIfConfigDecl(IfConfigDecl e, int index) {
+    exists(int n, int nMember |
+      n = 0 and
+      nMember = n + e.getNumberOfMembers() and
+      (
+        none()
+        or
+        result = e.getMember(index - n)
+      )
+    )
   }
 
   /**
@@ -439,6 +604,23 @@ module Raw {
      * Gets the `index`th declaration of this import declaration (0-based).
      */
     ValueDecl getDeclaration(int index) { import_decl_declarations(this, index, result) }
+
+    /**
+     * Gets the number of declarations of this import declaration.
+     */
+    int getNumberOfDeclarations() { result = count(int i | import_decl_declarations(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfImportDecl(ImportDecl e, int index) {
+    exists(int n, int nMember |
+      n = 0 and
+      nMember = n + e.getNumberOfMembers() and
+      (
+        none()
+        or
+        result = e.getMember(index - n)
+      )
+    )
   }
 
   /**
@@ -454,6 +636,18 @@ module Raw {
     string getName() { missing_member_decls(this, result) }
   }
 
+  private Element getImmediateChildOfMissingMemberDecl(MissingMemberDecl e, int index) {
+    exists(int n, int nMember |
+      n = 0 and
+      nMember = n + e.getNumberOfMembers() and
+      (
+        none()
+        or
+        result = e.getMember(index - n)
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -475,10 +669,38 @@ module Raw {
      */
     Expr getInit(int index) { pattern_binding_decl_inits(this, index, result) }
 
+    /**
+     * Gets the number of inits of this pattern binding declaration.
+     */
+    int getNumberOfInits() { result = count(int i | pattern_binding_decl_inits(this, i, _)) }
+
     /**
      * Gets the `index`th pattern of this pattern binding declaration (0-based).
      */
     Pattern getPattern(int index) { pattern_binding_decl_patterns(this, index, result) }
+
+    /**
+     * Gets the number of patterns of this pattern binding declaration.
+     */
+    int getNumberOfPatterns() { result = count(int i | pattern_binding_decl_patterns(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfPatternBindingDecl(PatternBindingDecl e, int index) {
+    exists(int n, int nMember, int nInit, int nPattern |
+      n = 0 and
+      nMember = n + e.getNumberOfMembers() and
+      nInit = nMember + e.getNumberOfInits() and
+      nPattern = nInit + e.getNumberOfPatterns() and
+      (
+        none()
+        or
+        result = e.getMember(index - n)
+        or
+        result = e.getInit(index - nMember)
+        or
+        result = e.getPattern(index - nInit)
+      )
+    )
   }
 
   /**
@@ -501,6 +723,21 @@ module Raw {
     StringLiteralExpr getMessage() { pound_diagnostic_decls(this, _, result) }
   }
 
+  private Element getImmediateChildOfPoundDiagnosticDecl(PoundDiagnosticDecl e, int index) {
+    exists(int n, int nMember, int nMessage |
+      n = 0 and
+      nMember = n + e.getNumberOfMembers() and
+      nMessage = nMember + 1 and
+      (
+        none()
+        or
+        result = e.getMember(index - n)
+        or
+        index = nMember and result = e.getMessage()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -508,6 +745,18 @@ module Raw {
     override string toString() { result = "PrecedenceGroupDecl" }
   }
 
+  private Element getImmediateChildOfPrecedenceGroupDecl(PrecedenceGroupDecl e, int index) {
+    exists(int n, int nMember |
+      n = 0 and
+      nMember = n + e.getNumberOfMembers() and
+      (
+        none()
+        or
+        result = e.getMember(index - n)
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -520,6 +769,21 @@ module Raw {
     BraceStmt getBody() { top_level_code_decls(this, result) }
   }
 
+  private Element getImmediateChildOfTopLevelCodeDecl(TopLevelCodeDecl e, int index) {
+    exists(int n, int nMember, int nBody |
+      n = 0 and
+      nMember = n + e.getNumberOfMembers() and
+      nBody = nMember + 1 and
+      (
+        none()
+        or
+        result = e.getMember(index - n)
+        or
+        index = nMember and result = e.getBody()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -537,6 +801,18 @@ module Raw {
     predicate isNonisolated() { using_decl_is_nonisolated(this) }
   }
 
+  private Element getImmediateChildOfUsingDecl(UsingDecl e, int index) {
+    exists(int n, int nMember |
+      n = 0 and
+      nMember = n + e.getNumberOfMembers() and
+      (
+        none()
+        or
+        result = e.getMember(index - n)
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -555,6 +831,13 @@ module Raw {
      * Gets the `index`th accessor of this abstract storage declaration (0-based).
      */
     Accessor getAccessor(int index) { abstract_storage_decl_accessors(this, index, result) }
+
+    /**
+     * Gets the number of accessors of this abstract storage declaration.
+     */
+    int getNumberOfAccessors() {
+      result = count(int i | abstract_storage_decl_accessors(this, i, _))
+    }
   }
 
   /**
@@ -572,6 +855,26 @@ module Raw {
      * Gets the `index`th parameter of this enum element declaration (0-based).
      */
     ParamDecl getParam(int index) { enum_element_decl_params(this, index, result) }
+
+    /**
+     * Gets the number of parameters of this enum element declaration.
+     */
+    int getNumberOfParams() { result = count(int i | enum_element_decl_params(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfEnumElementDecl(EnumElementDecl e, int index) {
+    exists(int n, int nMember, int nParam |
+      n = 0 and
+      nMember = n + e.getNumberOfMembers() and
+      nParam = nMember + e.getNumberOfParams() and
+      (
+        none()
+        or
+        result = e.getMember(index - n)
+        or
+        result = e.getParam(index - nMember)
+      )
+    )
   }
 
   /**
@@ -591,6 +894,18 @@ module Raw {
     PrecedenceGroupDecl getPrecedenceGroup() { infix_operator_decl_precedence_groups(this, result) }
   }
 
+  private Element getImmediateChildOfInfixOperatorDecl(InfixOperatorDecl e, int index) {
+    exists(int n, int nMember |
+      n = 0 and
+      nMember = n + e.getNumberOfMembers() and
+      (
+        none()
+        or
+        result = e.getMember(index - n)
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A declaration of a macro. Some examples:
@@ -617,10 +932,35 @@ module Raw {
      */
     ParamDecl getParameter(int index) { macro_decl_parameters(this, index, result) }
 
+    /**
+     * Gets the number of parameters of this macro.
+     */
+    int getNumberOfParameters() { result = count(int i | macro_decl_parameters(this, i, _)) }
+
     /**
      * Gets the `index`th role of this macro (0-based).
      */
     MacroRole getRole(int index) { macro_decl_roles(this, index, result) }
+
+    /**
+     * Gets the number of roles of this macro.
+     */
+    int getNumberOfRoles() { result = count(int i | macro_decl_roles(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfMacroDecl(MacroDecl e, int index) {
+    exists(int n, int nGenericTypeParam, int nMember |
+      n = 0 and
+      nGenericTypeParam = n + e.getNumberOfGenericTypeParams() and
+      nMember = nGenericTypeParam + e.getNumberOfMembers() and
+      (
+        none()
+        or
+        result = e.getGenericTypeParam(index - n)
+        or
+        result = e.getMember(index - nGenericTypeParam)
+      )
+    )
   }
 
   /**
@@ -630,6 +970,18 @@ module Raw {
     override string toString() { result = "PostfixOperatorDecl" }
   }
 
+  private Element getImmediateChildOfPostfixOperatorDecl(PostfixOperatorDecl e, int index) {
+    exists(int n, int nMember |
+      n = 0 and
+      nMember = n + e.getNumberOfMembers() and
+      (
+        none()
+        or
+        result = e.getMember(index - n)
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -637,6 +989,18 @@ module Raw {
     override string toString() { result = "PrefixOperatorDecl" }
   }
 
+  private Element getImmediateChildOfPrefixOperatorDecl(PrefixOperatorDecl e, int index) {
+    exists(int n, int nMember |
+      n = 0 and
+      nMember = n + e.getNumberOfMembers() and
+      (
+        none()
+        or
+        result = e.getMember(index - n)
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -653,6 +1017,13 @@ module Raw {
      * will not resolve `TypeAliasDecl`s or consider base types added by extensions.
      */
     Type getInheritedType(int index) { type_decl_inherited_types(this, index, result) }
+
+    /**
+     * Gets the number of inherited types of this type declaration.
+     */
+    int getNumberOfInheritedTypes() {
+      result = count(int i | type_decl_inherited_types(this, i, _))
+    }
   }
 
   /**
@@ -672,6 +1043,35 @@ module Raw {
     override string toString() { result = "Deinitializer" }
   }
 
+  private Element getImmediateChildOfDeinitializer(Deinitializer e, int index) {
+    exists(
+      int n, int nGenericTypeParam, int nMember, int nSelfParam, int nParam, int nBody, int nCapture
+    |
+      n = 0 and
+      nGenericTypeParam = n + e.getNumberOfGenericTypeParams() and
+      nMember = nGenericTypeParam + e.getNumberOfMembers() and
+      nSelfParam = nMember + 1 and
+      nParam = nSelfParam + e.getNumberOfParams() and
+      nBody = nParam + 1 and
+      nCapture = nBody + e.getNumberOfCaptures() and
+      (
+        none()
+        or
+        result = e.getGenericTypeParam(index - n)
+        or
+        result = e.getMember(index - nGenericTypeParam)
+        or
+        index = nMember and result = e.getSelfParam()
+        or
+        result = e.getParam(index - nSelfParam)
+        or
+        index = nParam and result = e.getBody()
+        or
+        result = e.getCapture(index - nBody)
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -684,6 +1084,35 @@ module Raw {
     override string toString() { result = "Initializer" }
   }
 
+  private Element getImmediateChildOfInitializer(Initializer e, int index) {
+    exists(
+      int n, int nGenericTypeParam, int nMember, int nSelfParam, int nParam, int nBody, int nCapture
+    |
+      n = 0 and
+      nGenericTypeParam = n + e.getNumberOfGenericTypeParams() and
+      nMember = nGenericTypeParam + e.getNumberOfMembers() and
+      nSelfParam = nMember + 1 and
+      nParam = nSelfParam + e.getNumberOfParams() and
+      nBody = nParam + 1 and
+      nCapture = nBody + e.getNumberOfCaptures() and
+      (
+        none()
+        or
+        result = e.getGenericTypeParam(index - n)
+        or
+        result = e.getMember(index - nGenericTypeParam)
+        or
+        index = nMember and result = e.getSelfParam()
+        or
+        result = e.getParam(index - nSelfParam)
+        or
+        index = nParam and result = e.getBody()
+        or
+        result = e.getCapture(index - nBody)
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -713,6 +1142,18 @@ module Raw {
     ModuleDecl getAnExportedModule() { module_decl_exported_modules(this, result) }
   }
 
+  private Element getImmediateChildOfModuleDecl(ModuleDecl e, int index) {
+    exists(int n, int nMember |
+      n = 0 and
+      nMember = n + e.getNumberOfMembers() and
+      (
+        none()
+        or
+        result = e.getMember(index - n)
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -724,12 +1165,38 @@ module Raw {
      */
     ParamDecl getParam(int index) { subscript_decl_params(this, index, result) }
 
+    /**
+     * Gets the number of parameters of this subscript declaration.
+     */
+    int getNumberOfParams() { result = count(int i | subscript_decl_params(this, i, _)) }
+
     /**
      * Gets the element type of this subscript declaration.
      */
     Type getElementType() { subscript_decls(this, result) }
   }
 
+  private Element getImmediateChildOfSubscriptDecl(SubscriptDecl e, int index) {
+    exists(int n, int nMember, int nAccessor, int nGenericTypeParam, int nParam |
+      n = 0 and
+      nMember = n + e.getNumberOfMembers() and
+      nAccessor = nMember + e.getNumberOfAccessors() and
+      nGenericTypeParam = nAccessor + e.getNumberOfGenericTypeParams() and
+      nParam = nGenericTypeParam + e.getNumberOfParams() and
+      (
+        none()
+        or
+        result = e.getMember(index - n)
+        or
+        result = e.getAccessor(index - nMember)
+        or
+        result = e.getGenericTypeParam(index - nAccessor)
+        or
+        result = e.getParam(index - nGenericTypeParam)
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A declaration of a variable such as
@@ -913,6 +1380,35 @@ module Raw {
     predicate isInit() { accessor_is_init(this) }
   }
 
+  private Element getImmediateChildOfAccessor(Accessor e, int index) {
+    exists(
+      int n, int nGenericTypeParam, int nMember, int nSelfParam, int nParam, int nBody, int nCapture
+    |
+      n = 0 and
+      nGenericTypeParam = n + e.getNumberOfGenericTypeParams() and
+      nMember = nGenericTypeParam + e.getNumberOfMembers() and
+      nSelfParam = nMember + 1 and
+      nParam = nSelfParam + e.getNumberOfParams() and
+      nBody = nParam + 1 and
+      nCapture = nBody + e.getNumberOfCaptures() and
+      (
+        none()
+        or
+        result = e.getGenericTypeParam(index - n)
+        or
+        result = e.getMember(index - nGenericTypeParam)
+        or
+        index = nMember and result = e.getSelfParam()
+        or
+        result = e.getParam(index - nSelfParam)
+        or
+        index = nParam and result = e.getBody()
+        or
+        result = e.getCapture(index - nBody)
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -920,6 +1416,18 @@ module Raw {
     override string toString() { result = "AssociatedTypeDecl" }
   }
 
+  private Element getImmediateChildOfAssociatedTypeDecl(AssociatedTypeDecl e, int index) {
+    exists(int n, int nMember |
+      n = 0 and
+      nMember = n + e.getNumberOfMembers() and
+      (
+        none()
+        or
+        result = e.getMember(index - n)
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -934,6 +1442,38 @@ module Raw {
     int getIntroducerInt() { concrete_var_decls(this, result) }
   }
 
+  private Element getImmediateChildOfConcreteVarDecl(ConcreteVarDecl e, int index) {
+    exists(
+      int n, int nMember, int nAccessor, int nPropertyWrapperBackingVarBinding,
+      int nPropertyWrapperBackingVar, int nPropertyWrapperProjectionVarBinding,
+      int nPropertyWrapperProjectionVar
+    |
+      n = 0 and
+      nMember = n + e.getNumberOfMembers() and
+      nAccessor = nMember + e.getNumberOfAccessors() and
+      nPropertyWrapperBackingVarBinding = nAccessor + 1 and
+      nPropertyWrapperBackingVar = nPropertyWrapperBackingVarBinding + 1 and
+      nPropertyWrapperProjectionVarBinding = nPropertyWrapperBackingVar + 1 and
+      nPropertyWrapperProjectionVar = nPropertyWrapperProjectionVarBinding + 1 and
+      (
+        none()
+        or
+        result = e.getMember(index - n)
+        or
+        result = e.getAccessor(index - nMember)
+        or
+        index = nAccessor and result = e.getPropertyWrapperBackingVarBinding()
+        or
+        index = nPropertyWrapperBackingVarBinding and result = e.getPropertyWrapperBackingVar()
+        or
+        index = nPropertyWrapperBackingVar and result = e.getPropertyWrapperProjectionVarBinding()
+        or
+        index = nPropertyWrapperProjectionVarBinding and
+        result = e.getPropertyWrapperProjectionVar()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -941,6 +1481,18 @@ module Raw {
     override string toString() { result = "GenericTypeParamDecl" }
   }
 
+  private Element getImmediateChildOfGenericTypeParamDecl(GenericTypeParamDecl e, int index) {
+    exists(int n, int nMember |
+      n = 0 and
+      nMember = n + e.getNumberOfMembers() and
+      (
+        none()
+        or
+        result = e.getMember(index - n)
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -948,6 +1500,35 @@ module Raw {
     override string toString() { result = "NamedFunction" }
   }
 
+  private Element getImmediateChildOfNamedFunction(NamedFunction e, int index) {
+    exists(
+      int n, int nGenericTypeParam, int nMember, int nSelfParam, int nParam, int nBody, int nCapture
+    |
+      n = 0 and
+      nGenericTypeParam = n + e.getNumberOfGenericTypeParams() and
+      nMember = nGenericTypeParam + e.getNumberOfMembers() and
+      nSelfParam = nMember + 1 and
+      nParam = nSelfParam + e.getNumberOfParams() and
+      nBody = nParam + 1 and
+      nCapture = nBody + e.getNumberOfCaptures() and
+      (
+        none()
+        or
+        result = e.getGenericTypeParam(index - n)
+        or
+        result = e.getMember(index - nGenericTypeParam)
+        or
+        index = nMember and result = e.getSelfParam()
+        or
+        result = e.getParam(index - nSelfParam)
+        or
+        index = nParam and result = e.getBody()
+        or
+        result = e.getCapture(index - nBody)
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -984,6 +1565,28 @@ module Raw {
     GenericTypeParamType getOpaqueGenericParam(int index) {
       opaque_type_decl_opaque_generic_params(this, index, result)
     }
+
+    /**
+     * Gets the number of opaque generic parameters of this opaque type declaration.
+     */
+    int getNumberOfOpaqueGenericParams() {
+      result = count(int i | opaque_type_decl_opaque_generic_params(this, i, _))
+    }
+  }
+
+  private Element getImmediateChildOfOpaqueTypeDecl(OpaqueTypeDecl e, int index) {
+    exists(int n, int nGenericTypeParam, int nMember |
+      n = 0 and
+      nGenericTypeParam = n + e.getNumberOfGenericTypeParams() and
+      nMember = nGenericTypeParam + e.getNumberOfMembers() and
+      (
+        none()
+        or
+        result = e.getGenericTypeParam(index - n)
+        or
+        result = e.getMember(index - nGenericTypeParam)
+      )
+    )
   }
 
   /**
@@ -1018,6 +1621,47 @@ module Raw {
     }
   }
 
+  private Element getImmediateChildOfParamDecl(ParamDecl e, int index) {
+    exists(
+      int n, int nMember, int nAccessor, int nPropertyWrapperBackingVarBinding,
+      int nPropertyWrapperBackingVar, int nPropertyWrapperProjectionVarBinding,
+      int nPropertyWrapperProjectionVar, int nPropertyWrapperLocalWrappedVarBinding,
+      int nPropertyWrapperLocalWrappedVar
+    |
+      n = 0 and
+      nMember = n + e.getNumberOfMembers() and
+      nAccessor = nMember + e.getNumberOfAccessors() and
+      nPropertyWrapperBackingVarBinding = nAccessor + 1 and
+      nPropertyWrapperBackingVar = nPropertyWrapperBackingVarBinding + 1 and
+      nPropertyWrapperProjectionVarBinding = nPropertyWrapperBackingVar + 1 and
+      nPropertyWrapperProjectionVar = nPropertyWrapperProjectionVarBinding + 1 and
+      nPropertyWrapperLocalWrappedVarBinding = nPropertyWrapperProjectionVar + 1 and
+      nPropertyWrapperLocalWrappedVar = nPropertyWrapperLocalWrappedVarBinding + 1 and
+      (
+        none()
+        or
+        result = e.getMember(index - n)
+        or
+        result = e.getAccessor(index - nMember)
+        or
+        index = nAccessor and result = e.getPropertyWrapperBackingVarBinding()
+        or
+        index = nPropertyWrapperBackingVarBinding and result = e.getPropertyWrapperBackingVar()
+        or
+        index = nPropertyWrapperBackingVar and result = e.getPropertyWrapperProjectionVarBinding()
+        or
+        index = nPropertyWrapperProjectionVarBinding and
+        result = e.getPropertyWrapperProjectionVar()
+        or
+        index = nPropertyWrapperProjectionVar and
+        result = e.getPropertyWrapperLocalWrappedVarBinding()
+        or
+        index = nPropertyWrapperLocalWrappedVarBinding and
+        result = e.getPropertyWrapperLocalWrappedVar()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A declaration of a type alias to another type. For example:
@@ -1039,6 +1683,21 @@ module Raw {
     Type getAliasedType() { type_alias_decls(this, result) }
   }
 
+  private Element getImmediateChildOfTypeAliasDecl(TypeAliasDecl e, int index) {
+    exists(int n, int nGenericTypeParam, int nMember |
+      n = 0 and
+      nGenericTypeParam = n + e.getNumberOfGenericTypeParams() and
+      nMember = nGenericTypeParam + e.getNumberOfMembers() and
+      (
+        none()
+        or
+        result = e.getGenericTypeParam(index - n)
+        or
+        result = e.getMember(index - nGenericTypeParam)
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1046,6 +1705,21 @@ module Raw {
     override string toString() { result = "ClassDecl" }
   }
 
+  private Element getImmediateChildOfClassDecl(ClassDecl e, int index) {
+    exists(int n, int nGenericTypeParam, int nMember |
+      n = 0 and
+      nGenericTypeParam = n + e.getNumberOfGenericTypeParams() and
+      nMember = nGenericTypeParam + e.getNumberOfMembers() and
+      (
+        none()
+        or
+        result = e.getGenericTypeParam(index - n)
+        or
+        result = e.getMember(index - nGenericTypeParam)
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1053,6 +1727,21 @@ module Raw {
     override string toString() { result = "EnumDecl" }
   }
 
+  private Element getImmediateChildOfEnumDecl(EnumDecl e, int index) {
+    exists(int n, int nGenericTypeParam, int nMember |
+      n = 0 and
+      nGenericTypeParam = n + e.getNumberOfGenericTypeParams() and
+      nMember = nGenericTypeParam + e.getNumberOfMembers() and
+      (
+        none()
+        or
+        result = e.getGenericTypeParam(index - n)
+        or
+        result = e.getMember(index - nGenericTypeParam)
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1060,6 +1749,21 @@ module Raw {
     override string toString() { result = "ProtocolDecl" }
   }
 
+  private Element getImmediateChildOfProtocolDecl(ProtocolDecl e, int index) {
+    exists(int n, int nGenericTypeParam, int nMember |
+      n = 0 and
+      nGenericTypeParam = n + e.getNumberOfGenericTypeParams() and
+      nMember = nGenericTypeParam + e.getNumberOfMembers() and
+      (
+        none()
+        or
+        result = e.getGenericTypeParam(index - n)
+        or
+        result = e.getMember(index - nGenericTypeParam)
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1067,6 +1771,21 @@ module Raw {
     override string toString() { result = "StructDecl" }
   }
 
+  private Element getImmediateChildOfStructDecl(StructDecl e, int index) {
+    exists(int n, int nGenericTypeParam, int nMember |
+      n = 0 and
+      nGenericTypeParam = n + e.getNumberOfGenericTypeParams() and
+      nMember = nGenericTypeParam + e.getNumberOfMembers() and
+      (
+        none()
+        or
+        result = e.getGenericTypeParam(index - n)
+        or
+        result = e.getMember(index - nGenericTypeParam)
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1084,6 +1803,18 @@ module Raw {
     Expr getExpr() { arguments(this, _, result) }
   }
 
+  private Element getImmediateChildOfArgument(Argument e, int index) {
+    exists(int n, int nExpr |
+      n = 0 and
+      nExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * The base class for all expressions in Swift.
@@ -1132,6 +1863,20 @@ module Raw {
     ParamDecl getParam() { applied_property_wrapper_exprs(this, _, _, result) }
   }
 
+  private Element getImmediateChildOfAppliedPropertyWrapperExpr(
+    AppliedPropertyWrapperExpr e, int index
+  ) {
+    exists(int n, int nValue |
+      n = 0 and
+      nValue = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getValue()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1145,6 +1890,11 @@ module Raw {
      * Gets the `index`th argument passed to the applied function (0-based).
      */
     Argument getArgument(int index) { apply_expr_arguments(this, index, result) }
+
+    /**
+     * Gets the number of arguments passed to the applied function.
+     */
+    int getNumberOfArguments() { result = count(int i | apply_expr_arguments(this, i, _)) }
   }
 
   /**
@@ -1164,6 +1914,21 @@ module Raw {
     Expr getSource() { assign_exprs(this, _, result) }
   }
 
+  private Element getImmediateChildOfAssignExpr(AssignExpr e, int index) {
+    exists(int n, int nDest, int nSource |
+      n = 0 and
+      nDest = n + 1 and
+      nSource = nDest + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getDest()
+        or
+        index = nDest and result = e.getSource()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1176,6 +1941,18 @@ module Raw {
     Expr getSubExpr() { bind_optional_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfBindOptionalExpr(BindOptionalExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1189,12 +1966,35 @@ module Raw {
       capture_list_expr_binding_decls(this, index, result)
     }
 
+    /**
+     * Gets the number of binding declarations of this capture list expression.
+     */
+    int getNumberOfBindingDecls() {
+      result = count(int i | capture_list_expr_binding_decls(this, i, _))
+    }
+
     /**
      * Gets the closure body of this capture list expression.
      */
     ClosureExpr getClosureBody() { capture_list_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfCaptureListExpr(CaptureListExpr e, int index) {
+    exists(int n, int nBindingDecl, int nVariable, int nClosureBody |
+      n = 0 and
+      nBindingDecl = n + e.getNumberOfBindingDecls() and
+      nVariable = nBindingDecl and
+      nClosureBody = nVariable + 1 and
+      (
+        none()
+        or
+        result = e.getBindingDecl(index - n)
+        or
+        index = nVariable and result = e.getClosureBody()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1223,6 +2023,18 @@ module Raw {
     Expr getSubExpr() { consume_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfConsumeExpr(ConsumeExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * An expression that forces value to be copied. In the example below, `copy` marks the copy expression:
@@ -1241,6 +2053,18 @@ module Raw {
     Expr getSubExpr() { copy_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfCopyExpr(CopyExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * An expression that extracts the actor isolation of the current context, of type `(any Actor)?`.
@@ -1256,6 +2080,12 @@ module Raw {
     Expr getActor() { current_context_isolation_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfCurrentContextIsolationExpr(
+    CurrentContextIsolationExpr e, int index
+  ) {
+    none()
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1272,6 +2102,13 @@ module Raw {
      */
     Type getReplacementType(int index) { decl_ref_expr_replacement_types(this, index, result) }
 
+    /**
+     * Gets the number of replacement types of this declaration reference expression.
+     */
+    int getNumberOfReplacementTypes() {
+      result = count(int i | decl_ref_expr_replacement_types(this, i, _))
+    }
+
     /**
      * Holds if this declaration reference expression has direct to storage semantics.
      */
@@ -1295,6 +2132,8 @@ module Raw {
     predicate hasDistributedThunkSemantics() { decl_ref_expr_has_distributed_thunk_semantics(this) }
   }
 
+  private Element getImmediateChildOfDeclRefExpr(DeclRefExpr e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1317,6 +2156,10 @@ module Raw {
     Expr getCallerSideDefault() { default_argument_expr_caller_side_defaults(this, result) }
   }
 
+  private Element getImmediateChildOfDefaultArgumentExpr(DefaultArgumentExpr e, int index) {
+    none()
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1324,6 +2167,10 @@ module Raw {
     override string toString() { result = "DiscardAssignmentExpr" }
   }
 
+  private Element getImmediateChildOfDiscardAssignmentExpr(DiscardAssignmentExpr e, int index) {
+    none()
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1341,6 +2188,21 @@ module Raw {
     Expr getSubExpr() { dot_syntax_base_ignored_exprs(this, _, result) }
   }
 
+  private Element getImmediateChildOfDotSyntaxBaseIgnoredExpr(DotSyntaxBaseIgnoredExpr e, int index) {
+    exists(int n, int nQualifier, int nSubExpr |
+      n = 0 and
+      nQualifier = n + 1 and
+      nSubExpr = nQualifier + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getQualifier()
+        or
+        index = nQualifier and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1353,6 +2215,18 @@ module Raw {
     Expr getBase() { dynamic_type_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfDynamicTypeExpr(DynamicTypeExpr e, int index) {
+    exists(int n, int nBase |
+      n = 0 and
+      nBase = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getBase()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1370,6 +2244,18 @@ module Raw {
     EnumElementDecl getElement() { enum_is_case_exprs(this, _, result) }
   }
 
+  private Element getImmediateChildOfEnumIsCaseExpr(EnumIsCaseExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1377,6 +2263,8 @@ module Raw {
     override string toString() { result = "ErrorExpr" }
   }
 
+  private Element getImmediateChildOfErrorExpr(ErrorExpr e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1408,6 +2296,20 @@ module Raw {
     Expr getFunctionExpr() { extract_function_isolation_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfExtractFunctionIsolationExpr(
+    ExtractFunctionIsolationExpr e, int index
+  ) {
+    exists(int n, int nFunctionExpr |
+      n = 0 and
+      nFunctionExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getFunctionExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1420,6 +2322,18 @@ module Raw {
     Expr getSubExpr() { force_value_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfForceValueExpr(ForceValueExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1452,6 +2366,24 @@ module Raw {
     Expr getElseExpr() { if_exprs(this, _, _, result) }
   }
 
+  private Element getImmediateChildOfIfExpr(IfExpr e, int index) {
+    exists(int n, int nCondition, int nThenExpr, int nElseExpr |
+      n = 0 and
+      nCondition = n + 1 and
+      nThenExpr = nCondition + 1 and
+      nElseExpr = nThenExpr + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getCondition()
+        or
+        index = nCondition and result = e.getThenExpr()
+        or
+        index = nThenExpr and result = e.getElseExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1474,6 +2406,18 @@ module Raw {
     Expr getSubExpr() { in_out_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfInOutExpr(InOutExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1491,6 +2435,21 @@ module Raw {
     Expr getKeyPath() { key_path_application_exprs(this, _, result) }
   }
 
+  private Element getImmediateChildOfKeyPathApplicationExpr(KeyPathApplicationExpr e, int index) {
+    exists(int n, int nBase, int nKeyPath |
+      n = 0 and
+      nBase = n + 1 and
+      nKeyPath = nBase + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getBase()
+        or
+        index = nBase and result = e.getKeyPath()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1498,6 +2457,8 @@ module Raw {
     override string toString() { result = "KeyPathDotExpr" }
   }
 
+  private Element getImmediateChildOfKeyPathDotExpr(KeyPathDotExpr e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    * A key-path expression.
@@ -1514,6 +2475,26 @@ module Raw {
      * Gets the `index`th component of this key path expression (0-based).
      */
     KeyPathComponent getComponent(int index) { key_path_expr_components(this, index, result) }
+
+    /**
+     * Gets the number of components of this key path expression.
+     */
+    int getNumberOfComponents() { result = count(int i | key_path_expr_components(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfKeyPathExpr(KeyPathExpr e, int index) {
+    exists(int n, int nRoot, int nComponent |
+      n = 0 and
+      nRoot = n + 1 and
+      nComponent = nRoot + e.getNumberOfComponents() and
+      (
+        none()
+        or
+        index = n and result = e.getRoot()
+        or
+        result = e.getComponent(index - nRoot)
+      )
+    )
   }
 
   /**
@@ -1528,6 +2509,18 @@ module Raw {
     Expr getSubExpr() { lazy_initialization_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfLazyInitializationExpr(LazyInitializationExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1570,6 +2563,26 @@ module Raw {
     Expr getSubExpr() { make_temporarily_escapable_exprs(this, _, _, result) }
   }
 
+  private Element getImmediateChildOfMakeTemporarilyEscapableExpr(
+    MakeTemporarilyEscapableExpr e, int index
+  ) {
+    exists(int n, int nEscapingClosure, int nNonescapingClosure, int nSubExpr |
+      n = 0 and
+      nEscapingClosure = n + 1 and
+      nNonescapingClosure = nEscapingClosure + 1 and
+      nSubExpr = nNonescapingClosure + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getEscapingClosure()
+        or
+        index = nEscapingClosure and result = e.getNonescapingClosure()
+        or
+        index = nNonescapingClosure and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * An expression that materializes a pack during expansion. Appears around PackExpansionExpr.
@@ -1586,6 +2599,18 @@ module Raw {
     Expr getSubExpr() { materialize_pack_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfMaterializePackExpr(MaterializePackExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1603,6 +2628,18 @@ module Raw {
     Function getMethod() { obj_c_selector_exprs(this, _, result) }
   }
 
+  private Element getImmediateChildOfObjCSelectorExpr(ObjCSelectorExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1615,6 +2652,18 @@ module Raw {
     Expr getSubExpr() { one_way_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfOneWayExpr(OneWayExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1622,6 +2671,8 @@ module Raw {
     override string toString() { result = "OpaqueValueExpr" }
   }
 
+  private Element getImmediateChildOfOpaqueValueExpr(OpaqueValueExpr e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    * An implicit expression created by the compiler when a method is called on a protocol. For example in
@@ -1657,6 +2708,21 @@ module Raw {
     OpaqueValueExpr getOpaqueExpr() { open_existential_exprs(this, _, _, result) }
   }
 
+  private Element getImmediateChildOfOpenExistentialExpr(OpenExistentialExpr e, int index) {
+    exists(int n, int nSubExpr, int nExistential |
+      n = 0 and
+      nSubExpr = n + 1 and
+      nExistential = nSubExpr + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+        or
+        index = nSubExpr and result = e.getExistential()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1669,6 +2735,18 @@ module Raw {
     Expr getSubExpr() { optional_evaluation_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfOptionalEvaluationExpr(OptionalEvaluationExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1681,6 +2759,10 @@ module Raw {
     Initializer getInitializer() { other_initializer_ref_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfOtherInitializerRefExpr(OtherInitializerRefExpr e, int index) {
+    none()
+  }
+
   /**
    * INTERNAL: Do not use.
    * An ambiguous expression that might refer to multiple declarations. This will be present only
@@ -1695,6 +2777,17 @@ module Raw {
     ValueDecl getPossibleDeclaration(int index) {
       overloaded_decl_ref_expr_possible_declarations(this, index, result)
     }
+
+    /**
+     * Gets the number of possible declarations of this overloaded declaration reference expression.
+     */
+    int getNumberOfPossibleDeclarations() {
+      result = count(int i | overloaded_decl_ref_expr_possible_declarations(this, i, _))
+    }
+  }
+
+  private Element getImmediateChildOfOverloadedDeclRefExpr(OverloadedDeclRefExpr e, int index) {
+    none()
   }
 
   /**
@@ -1720,6 +2813,18 @@ module Raw {
     Expr getSubExpr() { pack_element_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfPackElementExpr(PackElementExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A pack expansion expression.
@@ -1743,6 +2848,18 @@ module Raw {
     Expr getPatternExpr() { pack_expansion_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfPackExpansionExpr(PackExpansionExpr e, int index) {
+    exists(int n, int nPatternExpr |
+      n = 0 and
+      nPatternExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getPatternExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A placeholder substituting property initializations with `=` when the property has a property
@@ -1762,6 +2879,12 @@ module Raw {
     OpaqueValueExpr getPlaceholder() { property_wrapper_value_placeholder_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfPropertyWrapperValuePlaceholderExpr(
+    PropertyWrapperValuePlaceholderExpr e, int index
+  ) {
+    none()
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1779,6 +2902,20 @@ module Raw {
     VarDecl getSelf() { rebind_self_in_initializer_exprs(this, _, result) }
   }
 
+  private Element getImmediateChildOfRebindSelfInInitializerExpr(
+    RebindSelfInInitializerExpr e, int index
+  ) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1789,6 +2926,23 @@ module Raw {
      * Gets the `index`th element of this sequence expression (0-based).
      */
     Expr getElement(int index) { sequence_expr_elements(this, index, result) }
+
+    /**
+     * Gets the number of elements of this sequence expression.
+     */
+    int getNumberOfElements() { result = count(int i | sequence_expr_elements(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfSequenceExpr(SequenceExpr e, int index) {
+    exists(int n, int nElement |
+      n = 0 and
+      nElement = n + e.getNumberOfElements() and
+      (
+        none()
+        or
+        result = e.getElement(index - n)
+      )
+    )
   }
 
   /**
@@ -1804,6 +2958,18 @@ module Raw {
     Stmt getStmt() { single_value_stmt_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfSingleValueStmtExpr(SingleValueStmtExpr e, int index) {
+    exists(int n, int nStmt |
+      n = 0 and
+      nStmt = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getStmt()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1816,6 +2982,8 @@ module Raw {
     VarDecl getSelf() { super_ref_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfSuperRefExpr(SuperRefExpr e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1838,6 +3006,21 @@ module Raw {
     VarDecl getVar() { tap_exprs(this, _, result) }
   }
 
+  private Element getImmediateChildOfTapExpr(TapExpr e, int index) {
+    exists(int n, int nSubExpr, int nBody |
+      n = 0 and
+      nSubExpr = n + 1 and
+      nBody = nSubExpr + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+        or
+        index = nSubExpr and result = e.getBody()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1855,6 +3038,18 @@ module Raw {
     int getIndex() { tuple_element_exprs(this, _, result) }
   }
 
+  private Element getImmediateChildOfTupleElementExpr(TupleElementExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1865,6 +3060,23 @@ module Raw {
      * Gets the `index`th element of this tuple expression (0-based).
      */
     Expr getElement(int index) { tuple_expr_elements(this, index, result) }
+
+    /**
+     * Gets the number of elements of this tuple expression.
+     */
+    int getNumberOfElements() { result = count(int i | tuple_expr_elements(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfTupleExpr(TupleExpr e, int index) {
+    exists(int n, int nElement |
+      n = 0 and
+      nElement = n + e.getNumberOfElements() and
+      (
+        none()
+        or
+        result = e.getElement(index - n)
+      )
+    )
   }
 
   /**
@@ -1879,6 +3091,18 @@ module Raw {
     TypeRepr getTypeRepr() { type_expr_type_reprs(this, result) }
   }
 
+  private Element getImmediateChildOfTypeExpr(TypeExpr e, int index) {
+    exists(int n, int nTypeRepr |
+      n = 0 and
+      nTypeRepr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getTypeRepr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1891,6 +3115,18 @@ module Raw {
     TypeRepr getTypeRepr() { type_value_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfTypeValueExpr(TypeValueExpr e, int index) {
+    exists(int n, int nTypeRepr |
+      n = 0 and
+      nTypeRepr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getTypeRepr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1903,7 +3139,11 @@ module Raw {
     string getName() { unresolved_decl_ref_expr_names(this, result) }
   }
 
-  /**
+  private Element getImmediateChildOfUnresolvedDeclRefExpr(UnresolvedDeclRefExpr e, int index) {
+    none()
+  }
+
+  /**
    * INTERNAL: Do not use.
    */
   class UnresolvedDotExpr extends @unresolved_dot_expr, Expr, ErrorElement {
@@ -1920,6 +3160,18 @@ module Raw {
     string getName() { unresolved_dot_exprs(this, _, result) }
   }
 
+  private Element getImmediateChildOfUnresolvedDotExpr(UnresolvedDotExpr e, int index) {
+    exists(int n, int nBase |
+      n = 0 and
+      nBase = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getBase()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1932,6 +3184,10 @@ module Raw {
     string getName() { unresolved_member_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfUnresolvedMemberExpr(UnresolvedMemberExpr e, int index) {
+    none()
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1944,6 +3200,18 @@ module Raw {
     Pattern getSubPattern() { unresolved_pattern_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfUnresolvedPatternExpr(UnresolvedPatternExpr e, int index) {
+    exists(int n, int nSubPattern |
+      n = 0 and
+      nSubPattern = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubPattern()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1956,6 +3224,18 @@ module Raw {
     Expr getSubExpr() { unresolved_specialize_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfUnresolvedSpecializeExpr(UnresolvedSpecializeExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1968,6 +3248,18 @@ module Raw {
     Expr getSubExpr() { vararg_expansion_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfVarargExpansionExpr(VarargExpansionExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1975,6 +3267,18 @@ module Raw {
     override string toString() { result = "AbiSafeConversionExpr" }
   }
 
+  private Element getImmediateChildOfAbiSafeConversionExpr(AbiSafeConversionExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A conversion that erases the actor isolation of an expression with `@isolated(any)` function
@@ -1984,6 +3288,20 @@ module Raw {
     override string toString() { result = "ActorIsolationErasureExpr" }
   }
 
+  private Element getImmediateChildOfActorIsolationErasureExpr(
+    ActorIsolationErasureExpr e, int index
+  ) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1991,6 +3309,18 @@ module Raw {
     override string toString() { result = "AnyHashableErasureExpr" }
   }
 
+  private Element getImmediateChildOfAnyHashableErasureExpr(AnyHashableErasureExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -1998,6 +3328,18 @@ module Raw {
     override string toString() { result = "ArchetypeToSuperExpr" }
   }
 
+  private Element getImmediateChildOfArchetypeToSuperExpr(ArchetypeToSuperExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2008,6 +3350,23 @@ module Raw {
      * Gets the `index`th element of this array expression (0-based).
      */
     Expr getElement(int index) { array_expr_elements(this, index, result) }
+
+    /**
+     * Gets the number of elements of this array expression.
+     */
+    int getNumberOfElements() { result = count(int i | array_expr_elements(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfArrayExpr(ArrayExpr e, int index) {
+    exists(int n, int nElement |
+      n = 0 and
+      nElement = n + e.getNumberOfElements() and
+      (
+        none()
+        or
+        result = e.getElement(index - n)
+      )
+    )
   }
 
   /**
@@ -2017,6 +3376,18 @@ module Raw {
     override string toString() { result = "ArrayToPointerExpr" }
   }
 
+  private Element getImmediateChildOfArrayToPointerExpr(ArrayToPointerExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2024,6 +3395,27 @@ module Raw {
     override string toString() { result = "AutoClosureExpr" }
   }
 
+  private Element getImmediateChildOfAutoClosureExpr(AutoClosureExpr e, int index) {
+    exists(int n, int nSelfParam, int nParam, int nBody, int nCapture |
+      n = 0 and
+      nSelfParam = n + 1 and
+      nParam = nSelfParam + e.getNumberOfParams() and
+      nBody = nParam + 1 and
+      nCapture = nBody + e.getNumberOfCaptures() and
+      (
+        none()
+        or
+        index = n and result = e.getSelfParam()
+        or
+        result = e.getParam(index - nSelfParam)
+        or
+        index = nParam and result = e.getBody()
+        or
+        result = e.getCapture(index - nBody)
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2031,6 +3423,18 @@ module Raw {
     override string toString() { result = "AwaitExpr" }
   }
 
+  private Element getImmediateChildOfAwaitExpr(AwaitExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2038,6 +3442,21 @@ module Raw {
     override string toString() { result = "BinaryExpr" }
   }
 
+  private Element getImmediateChildOfBinaryExpr(BinaryExpr e, int index) {
+    exists(int n, int nFunction, int nArgument |
+      n = 0 and
+      nFunction = n + 1 and
+      nArgument = nFunction + e.getNumberOfArguments() and
+      (
+        none()
+        or
+        index = n and result = e.getFunction()
+        or
+        result = e.getArgument(index - nFunction)
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * An expression that marks value as borrowed. In the example below, `_borrow` marks the borrow expression:
@@ -2051,6 +3470,18 @@ module Raw {
     override string toString() { result = "BorrowExpr" }
   }
 
+  private Element getImmediateChildOfBorrowExpr(BorrowExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2058,6 +3489,18 @@ module Raw {
     override string toString() { result = "BridgeFromObjCExpr" }
   }
 
+  private Element getImmediateChildOfBridgeFromObjCExpr(BridgeFromObjCExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2065,6 +3508,18 @@ module Raw {
     override string toString() { result = "BridgeToObjCExpr" }
   }
 
+  private Element getImmediateChildOfBridgeToObjCExpr(BridgeToObjCExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2077,6 +3532,21 @@ module Raw {
     override string toString() { result = "CallExpr" }
   }
 
+  private Element getImmediateChildOfCallExpr(CallExpr e, int index) {
+    exists(int n, int nFunction, int nArgument |
+      n = 0 and
+      nFunction = n + 1 and
+      nArgument = nFunction + e.getNumberOfArguments() and
+      (
+        none()
+        or
+        index = n and result = e.getFunction()
+        or
+        result = e.getArgument(index - nFunction)
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2089,6 +3559,20 @@ module Raw {
     override string toString() { result = "ClassMetatypeToObjectExpr" }
   }
 
+  private Element getImmediateChildOfClassMetatypeToObjectExpr(
+    ClassMetatypeToObjectExpr e, int index
+  ) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2096,6 +3580,18 @@ module Raw {
     override string toString() { result = "CoerceExpr" }
   }
 
+  private Element getImmediateChildOfCoerceExpr(CoerceExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2105,6 +3601,20 @@ module Raw {
     override string toString() { result = "CollectionUpcastConversionExpr" }
   }
 
+  private Element getImmediateChildOfCollectionUpcastConversionExpr(
+    CollectionUpcastConversionExpr e, int index
+  ) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2114,6 +3624,20 @@ module Raw {
     override string toString() { result = "ConditionalBridgeFromObjCExpr" }
   }
 
+  private Element getImmediateChildOfConditionalBridgeFromObjCExpr(
+    ConditionalBridgeFromObjCExpr e, int index
+  ) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2123,6 +3647,20 @@ module Raw {
     override string toString() { result = "CovariantFunctionConversionExpr" }
   }
 
+  private Element getImmediateChildOfCovariantFunctionConversionExpr(
+    CovariantFunctionConversionExpr e, int index
+  ) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2132,6 +3670,20 @@ module Raw {
     override string toString() { result = "CovariantReturnConversionExpr" }
   }
 
+  private Element getImmediateChildOfCovariantReturnConversionExpr(
+    CovariantReturnConversionExpr e, int index
+  ) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2139,6 +3691,18 @@ module Raw {
     override string toString() { result = "DerivedToBaseExpr" }
   }
 
+  private Element getImmediateChildOfDerivedToBaseExpr(DerivedToBaseExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2146,6 +3710,18 @@ module Raw {
     override string toString() { result = "DestructureTupleExpr" }
   }
 
+  private Element getImmediateChildOfDestructureTupleExpr(DestructureTupleExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2156,6 +3732,23 @@ module Raw {
      * Gets the `index`th element of this dictionary expression (0-based).
      */
     Expr getElement(int index) { dictionary_expr_elements(this, index, result) }
+
+    /**
+     * Gets the number of elements of this dictionary expression.
+     */
+    int getNumberOfElements() { result = count(int i | dictionary_expr_elements(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfDictionaryExpr(DictionaryExpr e, int index) {
+    exists(int n, int nElement |
+      n = 0 and
+      nElement = n + e.getNumberOfElements() and
+      (
+        none()
+        or
+        result = e.getElement(index - n)
+      )
+    )
   }
 
   /**
@@ -2165,6 +3758,20 @@ module Raw {
     override string toString() { result = "DifferentiableFunctionExpr" }
   }
 
+  private Element getImmediateChildOfDifferentiableFunctionExpr(
+    DifferentiableFunctionExpr e, int index
+  ) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2174,6 +3781,20 @@ module Raw {
     override string toString() { result = "DifferentiableFunctionExtractOriginalExpr" }
   }
 
+  private Element getImmediateChildOfDifferentiableFunctionExtractOriginalExpr(
+    DifferentiableFunctionExtractOriginalExpr e, int index
+  ) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2181,6 +3802,18 @@ module Raw {
     override string toString() { result = "DotSelfExpr" }
   }
 
+  private Element getImmediateChildOfDotSelfExpr(DotSelfExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2193,6 +3826,18 @@ module Raw {
     override string toString() { result = "ErasureExpr" }
   }
 
+  private Element getImmediateChildOfErasureExpr(ErasureExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2202,6 +3847,20 @@ module Raw {
     override string toString() { result = "ExistentialMetatypeToObjectExpr" }
   }
 
+  private Element getImmediateChildOfExistentialMetatypeToObjectExpr(
+    ExistentialMetatypeToObjectExpr e, int index
+  ) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2209,6 +3868,27 @@ module Raw {
     override string toString() { result = "ExplicitClosureExpr" }
   }
 
+  private Element getImmediateChildOfExplicitClosureExpr(ExplicitClosureExpr e, int index) {
+    exists(int n, int nSelfParam, int nParam, int nBody, int nCapture |
+      n = 0 and
+      nSelfParam = n + 1 and
+      nParam = nSelfParam + e.getNumberOfParams() and
+      nBody = nParam + 1 and
+      nCapture = nBody + e.getNumberOfCaptures() and
+      (
+        none()
+        or
+        index = n and result = e.getSelfParam()
+        or
+        result = e.getParam(index - nSelfParam)
+        or
+        index = nParam and result = e.getBody()
+        or
+        result = e.getCapture(index - nBody)
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2216,6 +3896,18 @@ module Raw {
     override string toString() { result = "ForceTryExpr" }
   }
 
+  private Element getImmediateChildOfForceTryExpr(ForceTryExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2223,6 +3915,20 @@ module Raw {
     override string toString() { result = "ForeignObjectConversionExpr" }
   }
 
+  private Element getImmediateChildOfForeignObjectConversionExpr(
+    ForeignObjectConversionExpr e, int index
+  ) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2230,6 +3936,18 @@ module Raw {
     override string toString() { result = "FunctionConversionExpr" }
   }
 
+  private Element getImmediateChildOfFunctionConversionExpr(FunctionConversionExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2237,6 +3955,18 @@ module Raw {
     override string toString() { result = "InOutToPointerExpr" }
   }
 
+  private Element getImmediateChildOfInOutToPointerExpr(InOutToPointerExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2244,6 +3974,18 @@ module Raw {
     override string toString() { result = "InjectIntoOptionalExpr" }
   }
 
+  private Element getImmediateChildOfInjectIntoOptionalExpr(InjectIntoOptionalExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2263,6 +4005,20 @@ module Raw {
     TapExpr getAppendingExpr() { interpolated_string_literal_expr_appending_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfInterpolatedStringLiteralExpr(
+    InterpolatedStringLiteralExpr e, int index
+  ) {
+    exists(int n, int nAppendingExpr |
+      n = 0 and
+      nAppendingExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getAppendingExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2270,6 +4026,18 @@ module Raw {
     override string toString() { result = "LinearFunctionExpr" }
   }
 
+  private Element getImmediateChildOfLinearFunctionExpr(LinearFunctionExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2279,6 +4047,20 @@ module Raw {
     override string toString() { result = "LinearFunctionExtractOriginalExpr" }
   }
 
+  private Element getImmediateChildOfLinearFunctionExtractOriginalExpr(
+    LinearFunctionExtractOriginalExpr e, int index
+  ) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2288,6 +4070,20 @@ module Raw {
     override string toString() { result = "LinearToDifferentiableFunctionExpr" }
   }
 
+  private Element getImmediateChildOfLinearToDifferentiableFunctionExpr(
+    LinearToDifferentiableFunctionExpr e, int index
+  ) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2295,6 +4091,18 @@ module Raw {
     override string toString() { result = "LoadExpr" }
   }
 
+  private Element getImmediateChildOfLoadExpr(LoadExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2328,6 +4136,18 @@ module Raw {
     }
   }
 
+  private Element getImmediateChildOfMemberRefExpr(MemberRefExpr e, int index) {
+    exists(int n, int nBase |
+      n = 0 and
+      nBase = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getBase()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2335,6 +4155,18 @@ module Raw {
     override string toString() { result = "MetatypeConversionExpr" }
   }
 
+  private Element getImmediateChildOfMetatypeConversionExpr(MetatypeConversionExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2342,6 +4174,8 @@ module Raw {
     override string toString() { result = "NilLiteralExpr" }
   }
 
+  private Element getImmediateChildOfNilLiteralExpr(NilLiteralExpr e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    * An instance of `#fileLiteral`, `#imageLiteral` or `#colorLiteral` expressions, which are used in playgrounds.
@@ -2360,6 +4194,23 @@ module Raw {
      * Gets the `index`th argument of this object literal expression (0-based).
      */
     Argument getArgument(int index) { object_literal_expr_arguments(this, index, result) }
+
+    /**
+     * Gets the number of arguments of this object literal expression.
+     */
+    int getNumberOfArguments() { result = count(int i | object_literal_expr_arguments(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfObjectLiteralExpr(ObjectLiteralExpr e, int index) {
+    exists(int n, int nArgument |
+      n = 0 and
+      nArgument = n + e.getNumberOfArguments() and
+      (
+        none()
+        or
+        result = e.getArgument(index - n)
+      )
+    )
   }
 
   /**
@@ -2369,6 +4220,18 @@ module Raw {
     override string toString() { result = "OptionalTryExpr" }
   }
 
+  private Element getImmediateChildOfOptionalTryExpr(OptionalTryExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2376,6 +4239,18 @@ module Raw {
     override string toString() { result = "ParenExpr" }
   }
 
+  private Element getImmediateChildOfParenExpr(ParenExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2383,6 +4258,18 @@ module Raw {
     override string toString() { result = "PointerToPointerExpr" }
   }
 
+  private Element getImmediateChildOfPointerToPointerExpr(PointerToPointerExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2390,6 +4277,21 @@ module Raw {
     override string toString() { result = "PostfixUnaryExpr" }
   }
 
+  private Element getImmediateChildOfPostfixUnaryExpr(PostfixUnaryExpr e, int index) {
+    exists(int n, int nFunction, int nArgument |
+      n = 0 and
+      nFunction = n + 1 and
+      nArgument = nFunction + e.getNumberOfArguments() and
+      (
+        none()
+        or
+        index = n and result = e.getFunction()
+        or
+        result = e.getArgument(index - nFunction)
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2397,6 +4299,21 @@ module Raw {
     override string toString() { result = "PrefixUnaryExpr" }
   }
 
+  private Element getImmediateChildOfPrefixUnaryExpr(PrefixUnaryExpr e, int index) {
+    exists(int n, int nFunction, int nArgument |
+      n = 0 and
+      nFunction = n + 1 and
+      nArgument = nFunction + e.getNumberOfArguments() and
+      (
+        none()
+        or
+        index = n and result = e.getFunction()
+        or
+        result = e.getArgument(index - nFunction)
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2406,6 +4323,20 @@ module Raw {
     override string toString() { result = "ProtocolMetatypeToObjectExpr" }
   }
 
+  private Element getImmediateChildOfProtocolMetatypeToObjectExpr(
+    ProtocolMetatypeToObjectExpr e, int index
+  ) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A regular expression literal which is checked at compile time, for example `/a(a|b)*b/`.
@@ -2424,6 +4355,8 @@ module Raw {
     int getVersion() { regex_literal_exprs(this, _, result) }
   }
 
+  private Element getImmediateChildOfRegexLiteralExpr(RegexLiteralExpr e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    * An internal raw instance of method lookups like `x.foo` in `x.foo()`.
@@ -2443,6 +4376,18 @@ module Raw {
     override string toString() { result = "StringToPointerExpr" }
   }
 
+  private Element getImmediateChildOfStringToPointerExpr(StringToPointerExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2454,6 +4399,11 @@ module Raw {
      */
     Argument getArgument(int index) { subscript_expr_arguments(this, index, result) }
 
+    /**
+     * Gets the number of arguments of this subscript expression.
+     */
+    int getNumberOfArguments() { result = count(int i | subscript_expr_arguments(this, i, _)) }
+
     /**
      * Holds if this subscript expression has direct to storage semantics.
      */
@@ -2479,6 +4429,21 @@ module Raw {
     }
   }
 
+  private Element getImmediateChildOfSubscriptExpr(SubscriptExpr e, int index) {
+    exists(int n, int nBase, int nArgument |
+      n = 0 and
+      nBase = n + 1 and
+      nArgument = nBase + e.getNumberOfArguments() and
+      (
+        none()
+        or
+        index = n and result = e.getBase()
+        or
+        result = e.getArgument(index - nBase)
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2486,6 +4451,18 @@ module Raw {
     override string toString() { result = "TryExpr" }
   }
 
+  private Element getImmediateChildOfTryExpr(TryExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2493,6 +4470,18 @@ module Raw {
     override string toString() { result = "UnderlyingToOpaqueExpr" }
   }
 
+  private Element getImmediateChildOfUnderlyingToOpaqueExpr(UnderlyingToOpaqueExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2500,6 +4489,18 @@ module Raw {
     override string toString() { result = "UnevaluatedInstanceExpr" }
   }
 
+  private Element getImmediateChildOfUnevaluatedInstanceExpr(UnevaluatedInstanceExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A conversion from the uninhabited type to any other type. It's never evaluated.
@@ -2508,6 +4509,18 @@ module Raw {
     override string toString() { result = "UnreachableExpr" }
   }
 
+  private Element getImmediateChildOfUnreachableExpr(UnreachableExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2517,6 +4530,20 @@ module Raw {
     override string toString() { result = "UnresolvedMemberChainResultExpr" }
   }
 
+  private Element getImmediateChildOfUnresolvedMemberChainResultExpr(
+    UnresolvedMemberChainResultExpr e, int index
+  ) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2526,6 +4553,20 @@ module Raw {
     override string toString() { result = "UnresolvedTypeConversionExpr" }
   }
 
+  private Element getImmediateChildOfUnresolvedTypeConversionExpr(
+    UnresolvedTypeConversionExpr e, int index
+  ) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A conversion that performs an unsafe bitcast.
@@ -2534,6 +4575,18 @@ module Raw {
     override string toString() { result = "UnsafeCastExpr" }
   }
 
+  private Element getImmediateChildOfUnsafeCastExpr(UnsafeCastExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2541,6 +4594,18 @@ module Raw {
     override string toString() { result = "UnsafeExpr" }
   }
 
+  private Element getImmediateChildOfUnsafeExpr(UnsafeExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2553,6 +4618,8 @@ module Raw {
     boolean getValue() { boolean_literal_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfBooleanLiteralExpr(BooleanLiteralExpr e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2560,6 +4627,20 @@ module Raw {
     override string toString() { result = "ConditionalCheckedCastExpr" }
   }
 
+  private Element getImmediateChildOfConditionalCheckedCastExpr(
+    ConditionalCheckedCastExpr e, int index
+  ) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2567,6 +4648,21 @@ module Raw {
     override string toString() { result = "DotSyntaxCallExpr" }
   }
 
+  private Element getImmediateChildOfDotSyntaxCallExpr(DotSyntaxCallExpr e, int index) {
+    exists(int n, int nFunction, int nArgument |
+      n = 0 and
+      nFunction = n + 1 and
+      nArgument = nFunction + e.getNumberOfArguments() and
+      (
+        none()
+        or
+        index = n and result = e.getFunction()
+        or
+        result = e.getArgument(index - nFunction)
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2574,6 +4670,18 @@ module Raw {
     override string toString() { result = "DynamicMemberRefExpr" }
   }
 
+  private Element getImmediateChildOfDynamicMemberRefExpr(DynamicMemberRefExpr e, int index) {
+    exists(int n, int nBase |
+      n = 0 and
+      nBase = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getBase()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2581,6 +4689,18 @@ module Raw {
     override string toString() { result = "DynamicSubscriptExpr" }
   }
 
+  private Element getImmediateChildOfDynamicSubscriptExpr(DynamicSubscriptExpr e, int index) {
+    exists(int n, int nBase |
+      n = 0 and
+      nBase = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getBase()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2588,6 +4708,18 @@ module Raw {
     override string toString() { result = "ForcedCheckedCastExpr" }
   }
 
+  private Element getImmediateChildOfForcedCheckedCastExpr(ForcedCheckedCastExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2595,6 +4727,21 @@ module Raw {
     override string toString() { result = "InitializerRefCallExpr" }
   }
 
+  private Element getImmediateChildOfInitializerRefCallExpr(InitializerRefCallExpr e, int index) {
+    exists(int n, int nFunction, int nArgument |
+      n = 0 and
+      nFunction = n + 1 and
+      nArgument = nFunction + e.getNumberOfArguments() and
+      (
+        none()
+        or
+        index = n and result = e.getFunction()
+        or
+        result = e.getArgument(index - nFunction)
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2602,6 +4749,18 @@ module Raw {
     override string toString() { result = "IsExpr" }
   }
 
+  private Element getImmediateChildOfIsExpr(IsExpr e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2614,6 +4773,12 @@ module Raw {
     string getKind() { magic_identifier_literal_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfMagicIdentifierLiteralExpr(
+    MagicIdentifierLiteralExpr e, int index
+  ) {
+    none()
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2631,6 +4796,8 @@ module Raw {
     string getValue() { string_literal_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfStringLiteralExpr(StringLiteralExpr e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2643,6 +4810,8 @@ module Raw {
     string getStringValue() { float_literal_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfFloatLiteralExpr(FloatLiteralExpr e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2655,6 +4824,8 @@ module Raw {
     string getStringValue() { integer_literal_exprs(this, result) }
   }
 
+  private Element getImmediateChildOfIntegerLiteralExpr(IntegerLiteralExpr e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2672,6 +4843,8 @@ module Raw {
     override string toString() { result = "AnyPattern" }
   }
 
+  private Element getImmediateChildOfAnyPattern(AnyPattern e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2684,6 +4857,18 @@ module Raw {
     Pattern getSubPattern() { binding_patterns(this, result) }
   }
 
+  private Element getImmediateChildOfBindingPattern(BindingPattern e, int index) {
+    exists(int n, int nSubPattern |
+      n = 0 and
+      nSubPattern = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubPattern()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2696,6 +4881,8 @@ module Raw {
     boolean getValue() { bool_patterns(this, result) }
   }
 
+  private Element getImmediateChildOfBoolPattern(BoolPattern e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2713,6 +4900,18 @@ module Raw {
     Pattern getSubPattern() { enum_element_pattern_sub_patterns(this, result) }
   }
 
+  private Element getImmediateChildOfEnumElementPattern(EnumElementPattern e, int index) {
+    exists(int n, int nSubPattern |
+      n = 0 and
+      nSubPattern = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubPattern()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2725,6 +4924,18 @@ module Raw {
     Expr getSubExpr() { expr_patterns(this, result) }
   }
 
+  private Element getImmediateChildOfExprPattern(ExprPattern e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2742,6 +4953,21 @@ module Raw {
     Pattern getSubPattern() { is_pattern_sub_patterns(this, result) }
   }
 
+  private Element getImmediateChildOfIsPattern(IsPattern e, int index) {
+    exists(int n, int nCastTypeRepr, int nSubPattern |
+      n = 0 and
+      nCastTypeRepr = n + 1 and
+      nSubPattern = nCastTypeRepr + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getCastTypeRepr()
+        or
+        index = nCastTypeRepr and result = e.getSubPattern()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2754,6 +4980,8 @@ module Raw {
     VarDecl getVarDecl() { named_patterns(this, result) }
   }
 
+  private Element getImmediateChildOfNamedPattern(NamedPattern e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2766,6 +4994,18 @@ module Raw {
     Pattern getSubPattern() { optional_some_patterns(this, result) }
   }
 
+  private Element getImmediateChildOfOptionalSomePattern(OptionalSomePattern e, int index) {
+    exists(int n, int nSubPattern |
+      n = 0 and
+      nSubPattern = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubPattern()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2778,6 +5018,18 @@ module Raw {
     Pattern getSubPattern() { paren_patterns(this, result) }
   }
 
+  private Element getImmediateChildOfParenPattern(ParenPattern e, int index) {
+    exists(int n, int nSubPattern |
+      n = 0 and
+      nSubPattern = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubPattern()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2788,6 +5040,23 @@ module Raw {
      * Gets the `index`th element of this tuple pattern (0-based).
      */
     Pattern getElement(int index) { tuple_pattern_elements(this, index, result) }
+
+    /**
+     * Gets the number of elements of this tuple pattern.
+     */
+    int getNumberOfElements() { result = count(int i | tuple_pattern_elements(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfTuplePattern(TuplePattern e, int index) {
+    exists(int n, int nElement |
+      n = 0 and
+      nElement = n + e.getNumberOfElements() and
+      (
+        none()
+        or
+        result = e.getElement(index - n)
+      )
+    )
   }
 
   /**
@@ -2807,6 +5076,21 @@ module Raw {
     TypeRepr getTypeRepr() { typed_pattern_type_reprs(this, result) }
   }
 
+  private Element getImmediateChildOfTypedPattern(TypedPattern e, int index) {
+    exists(int n, int nSubPattern, int nTypeRepr |
+      n = 0 and
+      nSubPattern = n + 1 and
+      nTypeRepr = nSubPattern + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubPattern()
+        or
+        index = nSubPattern and result = e.getTypeRepr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2824,6 +5108,21 @@ module Raw {
     Expr getGuard() { case_label_item_guards(this, result) }
   }
 
+  private Element getImmediateChildOfCaseLabelItem(CaseLabelItem e, int index) {
+    exists(int n, int nPattern, int nGuard |
+      n = 0 and
+      nPattern = n + 1 and
+      nGuard = nPattern + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getPattern()
+        or
+        index = nPattern and result = e.getGuard()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2851,6 +5150,27 @@ module Raw {
     AvailabilityInfo getAvailability() { condition_element_availabilities(this, result) }
   }
 
+  private Element getImmediateChildOfConditionElement(ConditionElement e, int index) {
+    exists(int n, int nBoolean, int nPattern, int nInitializer, int nAvailability |
+      n = 0 and
+      nBoolean = n + 1 and
+      nPattern = nBoolean + 1 and
+      nInitializer = nPattern + 1 and
+      nAvailability = nInitializer + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getBoolean()
+        or
+        index = nBoolean and result = e.getPattern()
+        or
+        index = nPattern and result = e.getInitializer()
+        or
+        index = nInitializer and result = e.getAvailability()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2866,6 +5186,23 @@ module Raw {
      * Gets the `index`th element of this statement condition (0-based).
      */
     ConditionElement getElement(int index) { stmt_condition_elements(this, index, result) }
+
+    /**
+     * Gets the number of elements of this statement condition.
+     */
+    int getNumberOfElements() { result = count(int i | stmt_condition_elements(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfStmtCondition(StmtCondition e, int index) {
+    exists(int n, int nElement |
+      n = 0 and
+      nElement = n + e.getNumberOfElements() and
+      (
+        none()
+        or
+        result = e.getElement(index - n)
+      )
+    )
   }
 
   /**
@@ -2878,6 +5215,24 @@ module Raw {
      * Gets the `index`th element of this brace statement (0-based).
      */
     AstNode getElement(int index) { brace_stmt_elements(this, index, result) }
+
+    /**
+     * Gets the number of elements of this brace statement.
+     */
+    int getNumberOfElements() { result = count(int i | brace_stmt_elements(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfBraceStmt(BraceStmt e, int index) {
+    exists(int n, int nVariable, int nElement |
+      n = 0 and
+      nVariable = n and
+      nElement = nVariable + e.getNumberOfElements() and
+      (
+        none()
+        or
+        result = e.getElement(index - nVariable)
+      )
+    )
   }
 
   /**
@@ -2897,6 +5252,8 @@ module Raw {
     Stmt getTarget() { break_stmt_targets(this, result) }
   }
 
+  private Element getImmediateChildOfBreakStmt(BreakStmt e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2908,17 +5265,45 @@ module Raw {
      */
     CaseLabelItem getLabel(int index) { case_stmt_labels(this, index, result) }
 
+    /**
+     * Gets the number of labels of this case statement.
+     */
+    int getNumberOfLabels() { result = count(int i | case_stmt_labels(this, i, _)) }
+
     /**
      * Gets the `index`th variable of this case statement (0-based).
      */
     VarDecl getVariable(int index) { case_stmt_variables(this, index, result) }
 
+    /**
+     * Gets the number of variables of this case statement.
+     */
+    int getNumberOfVariables() { result = count(int i | case_stmt_variables(this, i, _)) }
+
     /**
      * Gets the body of this case statement.
      */
     Stmt getBody() { case_stmts(this, result) }
   }
 
+  private Element getImmediateChildOfCaseStmt(CaseStmt e, int index) {
+    exists(int n, int nLabel, int nVariable, int nBody |
+      n = 0 and
+      nLabel = n + e.getNumberOfLabels() and
+      nVariable = nLabel + e.getNumberOfVariables() and
+      nBody = nVariable + 1 and
+      (
+        none()
+        or
+        result = e.getLabel(index - n)
+        or
+        result = e.getVariable(index - nLabel)
+        or
+        index = nVariable and result = e.getBody()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2936,6 +5321,8 @@ module Raw {
     Stmt getTarget() { continue_stmt_targets(this, result) }
   }
 
+  private Element getImmediateChildOfContinueStmt(ContinueStmt e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2948,6 +5335,18 @@ module Raw {
     BraceStmt getBody() { defer_stmts(this, result) }
   }
 
+  private Element getImmediateChildOfDeferStmt(DeferStmt e, int index) {
+    exists(int n, int nBody |
+      n = 0 and
+      nBody = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getBody()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A statement that takes a non-copyable value and destructs its members/fields.
@@ -2966,6 +5365,18 @@ module Raw {
     Expr getSubExpr() { discard_stmts(this, result) }
   }
 
+  private Element getImmediateChildOfDiscardStmt(DiscardStmt e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2973,6 +5384,8 @@ module Raw {
     override string toString() { result = "FailStmt" }
   }
 
+  private Element getImmediateChildOfFailStmt(FailStmt e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -2990,6 +5403,8 @@ module Raw {
     CaseStmt getFallthroughDest() { fallthrough_stmts(this, _, result) }
   }
 
+  private Element getImmediateChildOfFallthroughStmt(FallthroughStmt e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3017,6 +5432,8 @@ module Raw {
     string getMessage() { pound_assert_stmts(this, _, result) }
   }
 
+  private Element getImmediateChildOfPoundAssertStmt(PoundAssertStmt e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3029,6 +5446,18 @@ module Raw {
     Expr getResult() { return_stmt_results(this, result) }
   }
 
+  private Element getImmediateChildOfReturnStmt(ReturnStmt e, int index) {
+    exists(int n, int nResult |
+      n = 0 and
+      nResult = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getResult()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    * A statement implicitly wrapping values to be used in branches of if/switch expressions. For example in:
@@ -3050,6 +5479,18 @@ module Raw {
     Expr getResult() { then_stmts(this, result) }
   }
 
+  private Element getImmediateChildOfThenStmt(ThenStmt e, int index) {
+    exists(int n, int nResult |
+      n = 0 and
+      nResult = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getResult()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3062,6 +5503,18 @@ module Raw {
     Expr getSubExpr() { throw_stmts(this, result) }
   }
 
+  private Element getImmediateChildOfThrowStmt(ThrowStmt e, int index) {
+    exists(int n, int nSubExpr |
+      n = 0 and
+      nSubExpr = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getSubExpr()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3072,6 +5525,23 @@ module Raw {
      * Gets the `index`th result of this yield statement (0-based).
      */
     Expr getResult(int index) { yield_stmt_results(this, index, result) }
+
+    /**
+     * Gets the number of results of this yield statement.
+     */
+    int getNumberOfResults() { result = count(int i | yield_stmt_results(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfYieldStmt(YieldStmt e, int index) {
+    exists(int n, int nResult |
+      n = 0 and
+      nResult = n + e.getNumberOfResults() and
+      (
+        none()
+        or
+        result = e.getResult(index - n)
+      )
+    )
   }
 
   /**
@@ -3089,6 +5559,26 @@ module Raw {
      * Gets the `index`th catch of this do catch statement (0-based).
      */
     CaseStmt getCatch(int index) { do_catch_stmt_catches(this, index, result) }
+
+    /**
+     * Gets the number of catches of this do catch statement.
+     */
+    int getNumberOfCatches() { result = count(int i | do_catch_stmt_catches(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfDoCatchStmt(DoCatchStmt e, int index) {
+    exists(int n, int nBody, int nCatch |
+      n = 0 and
+      nBody = n + 1 and
+      nCatch = nBody + e.getNumberOfCatches() and
+      (
+        none()
+        or
+        index = n and result = e.getBody()
+        or
+        result = e.getCatch(index - nBody)
+      )
+    )
   }
 
   /**
@@ -3103,6 +5593,18 @@ module Raw {
     BraceStmt getBody() { do_stmts(this, result) }
   }
 
+  private Element getImmediateChildOfDoStmt(DoStmt e, int index) {
+    exists(int n, int nBody |
+      n = 0 and
+      nBody = n + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getBody()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3114,6 +5616,11 @@ module Raw {
      */
     VarDecl getVariable(int index) { for_each_stmt_variables(this, index, result) }
 
+    /**
+     * Gets the number of variables of this for each statement.
+     */
+    int getNumberOfVariables() { result = count(int i | for_each_stmt_variables(this, i, _)) }
+
     /**
      * Gets the pattern of this for each statement.
      */
@@ -3140,6 +5647,35 @@ module Raw {
     BraceStmt getBody() { for_each_stmts(this, _, result) }
   }
 
+  private Element getImmediateChildOfForEachStmt(ForEachStmt e, int index) {
+    exists(
+      int n, int nVariable, int nPattern, int nWhere, int nIteratorVar, int nNextCall, int nBody
+    |
+      n = 0 and
+      nVariable = n + e.getNumberOfVariables() and
+      nPattern = nVariable + 1 and
+      nWhere = nPattern + 1 and
+      nIteratorVar = nWhere + 1 and
+      nNextCall = nIteratorVar + 1 and
+      nBody = nNextCall + 1 and
+      (
+        none()
+        or
+        result = e.getVariable(index - n)
+        or
+        index = nVariable and result = e.getPattern()
+        or
+        index = nPattern and result = e.getWhere()
+        or
+        index = nWhere and result = e.getIteratorVar()
+        or
+        index = nIteratorVar and result = e.getNextCall()
+        or
+        index = nNextCall and result = e.getBody()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3167,6 +5703,21 @@ module Raw {
     Stmt getBody() { repeat_while_stmts(this, _, result) }
   }
 
+  private Element getImmediateChildOfRepeatWhileStmt(RepeatWhileStmt e, int index) {
+    exists(int n, int nCondition, int nBody |
+      n = 0 and
+      nCondition = n + 1 and
+      nBody = nCondition + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getCondition()
+        or
+        index = nCondition and result = e.getBody()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3182,6 +5733,26 @@ module Raw {
      * Gets the `index`th case of this switch statement (0-based).
      */
     CaseStmt getCase(int index) { switch_stmt_cases(this, index, result) }
+
+    /**
+     * Gets the number of cases of this switch statement.
+     */
+    int getNumberOfCases() { result = count(int i | switch_stmt_cases(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfSwitchStmt(SwitchStmt e, int index) {
+    exists(int n, int nExpr, int nCase |
+      n = 0 and
+      nExpr = n + 1 and
+      nCase = nExpr + e.getNumberOfCases() and
+      (
+        none()
+        or
+        index = n and result = e.getExpr()
+        or
+        result = e.getCase(index - nExpr)
+      )
+    )
   }
 
   /**
@@ -3196,6 +5767,21 @@ module Raw {
     BraceStmt getBody() { guard_stmts(this, result) }
   }
 
+  private Element getImmediateChildOfGuardStmt(GuardStmt e, int index) {
+    exists(int n, int nCondition, int nBody |
+      n = 0 and
+      nCondition = n + 1 and
+      nBody = nCondition + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getCondition()
+        or
+        index = nCondition and result = e.getBody()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3213,6 +5799,24 @@ module Raw {
     Stmt getElse() { if_stmt_elses(this, result) }
   }
 
+  private Element getImmediateChildOfIfStmt(IfStmt e, int index) {
+    exists(int n, int nCondition, int nThen, int nElse |
+      n = 0 and
+      nCondition = n + 1 and
+      nThen = nCondition + 1 and
+      nElse = nThen + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getCondition()
+        or
+        index = nCondition and result = e.getThen()
+        or
+        index = nThen and result = e.getElse()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3225,6 +5829,21 @@ module Raw {
     Stmt getBody() { while_stmts(this, result) }
   }
 
+  private Element getImmediateChildOfWhileStmt(WhileStmt e, int index) {
+    exists(int n, int nCondition, int nBody |
+      n = 0 and
+      nCondition = n + 1 and
+      nBody = nCondition + 1 and
+      (
+        none()
+        or
+        index = n and result = e.getCondition()
+        or
+        index = nCondition and result = e.getBody()
+      )
+    )
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3258,6 +5877,8 @@ module Raw {
     Type getType() { type_reprs(this, result) }
   }
 
+  private Element getImmediateChildOfTypeRepr(TypeRepr e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3272,6 +5893,13 @@ module Raw {
      */
     Type getParamType(int index) { any_function_type_param_types(this, index, result) }
 
+    /**
+     * Gets the number of parameter types of this function type.
+     */
+    int getNumberOfParamTypes() {
+      result = count(int i | any_function_type_param_types(this, i, _))
+    }
+
     /**
      * Holds if this type refers to a throwing function.
      */
@@ -3325,6 +5953,10 @@ module Raw {
     AssociatedTypeDecl getAssociatedTypeDecl() { dependent_member_types(this, _, result) }
   }
 
+  private Element getImmediateChildOfDependentMemberType(DependentMemberType e, int index) {
+    none()
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3337,6 +5969,8 @@ module Raw {
     Type getStaticSelfType() { dynamic_self_types(this, result) }
   }
 
+  private Element getImmediateChildOfDynamicSelfType(DynamicSelfType e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3344,6 +5978,8 @@ module Raw {
     override string toString() { result = "ErrorType" }
   }
 
+  private Element getImmediateChildOfErrorType(ErrorType e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3356,6 +5992,8 @@ module Raw {
     Type getConstraint() { existential_types(this, result) }
   }
 
+  private Element getImmediateChildOfExistentialType(ExistentialType e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3368,6 +6006,8 @@ module Raw {
     Type getObjectType() { in_out_types(this, result) }
   }
 
+  private Element getImmediateChildOfInOutType(InOutType e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3380,6 +6020,8 @@ module Raw {
     string getValue() { integer_types(this, result) }
   }
 
+  private Element getImmediateChildOfIntegerType(IntegerType e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3392,6 +6034,8 @@ module Raw {
     Type getObjectType() { l_value_types(this, result) }
   }
 
+  private Element getImmediateChildOfLValueType(LValueType e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3404,6 +6048,8 @@ module Raw {
     ModuleDecl getModule() { module_types(this, result) }
   }
 
+  private Element getImmediateChildOfModuleType(ModuleType e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    * A type of PackElementExpr, see PackElementExpr for more information.
@@ -3417,6 +6063,8 @@ module Raw {
     Type getPackType() { pack_element_types(this, result) }
   }
 
+  private Element getImmediateChildOfPackElementType(PackElementType e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    * A type of PackExpansionExpr, see PackExpansionExpr for more information.
@@ -3435,6 +6083,8 @@ module Raw {
     Type getCountType() { pack_expansion_types(this, _, result) }
   }
 
+  private Element getImmediateChildOfPackExpansionType(PackExpansionType e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    * An actual type of a pack expression at the instatiation point.
@@ -3455,8 +6105,15 @@ module Raw {
      * Gets the `index`th element of this pack type (0-based).
      */
     Type getElement(int index) { pack_type_elements(this, index, result) }
+
+    /**
+     * Gets the number of elements of this pack type.
+     */
+    int getNumberOfElements() { result = count(int i | pack_type_elements(this, i, _)) }
   }
 
+  private Element getImmediateChildOfPackType(PackType e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    * A sugar type of the form `P<X>` with `P` a protocol.
@@ -3475,6 +6132,17 @@ module Raw {
      * Gets the `index`th argument of this parameterized protocol type (0-based).
      */
     Type getArg(int index) { parameterized_protocol_type_args(this, index, result) }
+
+    /**
+     * Gets the number of arguments of this parameterized protocol type.
+     */
+    int getNumberOfArgs() { result = count(int i | parameterized_protocol_type_args(this, i, _)) }
+  }
+
+  private Element getImmediateChildOfParameterizedProtocolType(
+    ParameterizedProtocolType e, int index
+  ) {
+    none()
   }
 
   /**
@@ -3487,6 +6155,17 @@ module Raw {
      * Gets the `index`th member of this protocol composition type (0-based).
      */
     Type getMember(int index) { protocol_composition_type_members(this, index, result) }
+
+    /**
+     * Gets the number of members of this protocol composition type.
+     */
+    int getNumberOfMembers() {
+      result = count(int i | protocol_composition_type_members(this, i, _))
+    }
+  }
+
+  private Element getImmediateChildOfProtocolCompositionType(ProtocolCompositionType e, int index) {
+    none()
   }
 
   /**
@@ -3520,12 +6199,24 @@ module Raw {
      */
     Type getType(int index) { tuple_type_types(this, index, result) }
 
+    /**
+     * Gets the number of types of this tuple type.
+     */
+    int getNumberOfTypes() { result = count(int i | tuple_type_types(this, i, _)) }
+
     /**
      * Gets the `index`th name of this tuple type (0-based), if it exists.
      */
     string getName(int index) { tuple_type_names(this, index, result) }
+
+    /**
+     * Gets the number of names of this tuple type.
+     */
+    int getNumberOfNames() { result = count(int i | tuple_type_names(this, i, _)) }
   }
 
+  private Element getImmediateChildOfTupleType(TupleType e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3533,6 +6224,8 @@ module Raw {
     override string toString() { result = "UnresolvedType" }
   }
 
+  private Element getImmediateChildOfUnresolvedType(UnresolvedType e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3556,6 +6249,11 @@ module Raw {
      * Gets the `index`th protocol of this archetype type (0-based).
      */
     ProtocolDecl getProtocol(int index) { archetype_type_protocols(this, index, result) }
+
+    /**
+     * Gets the number of protocols of this archetype type.
+     */
+    int getNumberOfProtocols() { result = count(int i | archetype_type_protocols(this, i, _)) }
   }
 
   /**
@@ -3565,6 +6263,10 @@ module Raw {
     override string toString() { result = "BuiltinBridgeObjectType" }
   }
 
+  private Element getImmediateChildOfBuiltinBridgeObjectType(BuiltinBridgeObjectType e, int index) {
+    none()
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3572,6 +6274,12 @@ module Raw {
     override string toString() { result = "BuiltinDefaultActorStorageType" }
   }
 
+  private Element getImmediateChildOfBuiltinDefaultActorStorageType(
+    BuiltinDefaultActorStorageType e, int index
+  ) {
+    none()
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3579,6 +6287,10 @@ module Raw {
     override string toString() { result = "BuiltinExecutorType" }
   }
 
+  private Element getImmediateChildOfBuiltinExecutorType(BuiltinExecutorType e, int index) {
+    none()
+  }
+
   /**
    * INTERNAL: Do not use.
    * A builtin type representing N values stored contiguously.
@@ -3587,6 +6299,10 @@ module Raw {
     override string toString() { result = "BuiltinFixedArrayType" }
   }
 
+  private Element getImmediateChildOfBuiltinFixedArrayType(BuiltinFixedArrayType e, int index) {
+    none()
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3594,6 +6310,8 @@ module Raw {
     override string toString() { result = "BuiltinFloatType" }
   }
 
+  private Element getImmediateChildOfBuiltinFloatType(BuiltinFloatType e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3601,6 +6319,8 @@ module Raw {
     override string toString() { result = "BuiltinJobType" }
   }
 
+  private Element getImmediateChildOfBuiltinJobType(BuiltinJobType e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3608,6 +6328,10 @@ module Raw {
     override string toString() { result = "BuiltinNativeObjectType" }
   }
 
+  private Element getImmediateChildOfBuiltinNativeObjectType(BuiltinNativeObjectType e, int index) {
+    none()
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3615,6 +6339,10 @@ module Raw {
     override string toString() { result = "BuiltinRawPointerType" }
   }
 
+  private Element getImmediateChildOfBuiltinRawPointerType(BuiltinRawPointerType e, int index) {
+    none()
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3622,6 +6350,12 @@ module Raw {
     override string toString() { result = "BuiltinRawUnsafeContinuationType" }
   }
 
+  private Element getImmediateChildOfBuiltinRawUnsafeContinuationType(
+    BuiltinRawUnsafeContinuationType e, int index
+  ) {
+    none()
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3629,6 +6363,12 @@ module Raw {
     override string toString() { result = "BuiltinUnsafeValueBufferType" }
   }
 
+  private Element getImmediateChildOfBuiltinUnsafeValueBufferType(
+    BuiltinUnsafeValueBufferType e, int index
+  ) {
+    none()
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3636,6 +6376,8 @@ module Raw {
     override string toString() { result = "BuiltinVectorType" }
   }
 
+  private Element getImmediateChildOfBuiltinVectorType(BuiltinVectorType e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3643,6 +6385,10 @@ module Raw {
     override string toString() { result = "ExistentialMetatypeType" }
   }
 
+  private Element getImmediateChildOfExistentialMetatypeType(ExistentialMetatypeType e, int index) {
+    none()
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3650,6 +6396,8 @@ module Raw {
     override string toString() { result = "FunctionType" }
   }
 
+  private Element getImmediateChildOfFunctionType(FunctionType e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    * The type of a generic function with type parameters
@@ -3663,6 +6411,17 @@ module Raw {
     GenericTypeParamType getGenericParam(int index) {
       generic_function_type_generic_params(this, index, result)
     }
+
+    /**
+     * Gets the number of type parameters of this generic type.
+     */
+    int getNumberOfGenericParams() {
+      result = count(int i | generic_function_type_generic_params(this, i, _))
+    }
+  }
+
+  private Element getImmediateChildOfGenericFunctionType(GenericFunctionType e, int index) {
+    none()
   }
 
   /**
@@ -3672,6 +6431,10 @@ module Raw {
     override string toString() { result = "GenericTypeParamType" }
   }
 
+  private Element getImmediateChildOfGenericTypeParamType(GenericTypeParamType e, int index) {
+    none()
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3679,6 +6442,8 @@ module Raw {
     override string toString() { result = "MetatypeType" }
   }
 
+  private Element getImmediateChildOfMetatypeType(MetatypeType e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3698,6 +6463,8 @@ module Raw {
     Type getType() { paren_types(this, result) }
   }
 
+  private Element getImmediateChildOfParenType(ParenType e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3715,6 +6482,8 @@ module Raw {
     TypeAliasDecl getDecl() { type_alias_types(this, result) }
   }
 
+  private Element getImmediateChildOfTypeAliasType(TypeAliasType e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3722,6 +6491,8 @@ module Raw {
     override string toString() { result = "UnboundGenericType" }
   }
 
+  private Element getImmediateChildOfUnboundGenericType(UnboundGenericType e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3729,6 +6500,10 @@ module Raw {
     override string toString() { result = "UnmanagedStorageType" }
   }
 
+  private Element getImmediateChildOfUnmanagedStorageType(UnmanagedStorageType e, int index) {
+    none()
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3736,6 +6511,8 @@ module Raw {
     override string toString() { result = "UnownedStorageType" }
   }
 
+  private Element getImmediateChildOfUnownedStorageType(UnownedStorageType e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3743,6 +6520,8 @@ module Raw {
     override string toString() { result = "WeakStorageType" }
   }
 
+  private Element getImmediateChildOfWeakStorageType(WeakStorageType e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3751,6 +6530,11 @@ module Raw {
      * Gets the `index`th argument type of this bound generic type (0-based).
      */
     Type getArgType(int index) { bound_generic_type_arg_types(this, index, result) }
+
+    /**
+     * Gets the number of argument types of this bound generic type.
+     */
+    int getNumberOfArgTypes() { result = count(int i | bound_generic_type_arg_types(this, i, _)) }
   }
 
   /**
@@ -3760,6 +6544,12 @@ module Raw {
     override string toString() { result = "BuiltinIntegerLiteralType" }
   }
 
+  private Element getImmediateChildOfBuiltinIntegerLiteralType(
+    BuiltinIntegerLiteralType e, int index
+  ) {
+    none()
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3772,6 +6562,8 @@ module Raw {
     int getWidth() { builtin_integer_type_widths(this, result) }
   }
 
+  private Element getImmediateChildOfBuiltinIntegerType(BuiltinIntegerType e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3789,6 +6581,8 @@ module Raw {
     Type getValueType() { dictionary_types(this, _, result) }
   }
 
+  private Element getImmediateChildOfDictionaryType(DictionaryType e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3806,6 +6600,8 @@ module Raw {
     Type getElementType() { inline_array_types(this, _, result) }
   }
 
+  private Element getImmediateChildOfInlineArrayType(InlineArrayType e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3831,6 +6627,10 @@ module Raw {
     OpaqueTypeDecl getDeclaration() { opaque_type_archetype_types(this, result) }
   }
 
+  private Element getImmediateChildOfOpaqueTypeArchetypeType(OpaqueTypeArchetypeType e, int index) {
+    none()
+  }
+
   /**
    * INTERNAL: Do not use.
    * An archetype type of PackType.
@@ -3839,6 +6639,8 @@ module Raw {
     override string toString() { result = "PackArchetypeType" }
   }
 
+  private Element getImmediateChildOfPackArchetypeType(PackArchetypeType e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3846,6 +6648,10 @@ module Raw {
     override string toString() { result = "PrimaryArchetypeType" }
   }
 
+  private Element getImmediateChildOfPrimaryArchetypeType(PrimaryArchetypeType e, int index) {
+    none()
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3863,6 +6669,8 @@ module Raw {
     override string toString() { result = "ArraySliceType" }
   }
 
+  private Element getImmediateChildOfArraySliceType(ArraySliceType e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3870,6 +6678,10 @@ module Raw {
     override string toString() { result = "BoundGenericClassType" }
   }
 
+  private Element getImmediateChildOfBoundGenericClassType(BoundGenericClassType e, int index) {
+    none()
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3877,6 +6689,10 @@ module Raw {
     override string toString() { result = "BoundGenericEnumType" }
   }
 
+  private Element getImmediateChildOfBoundGenericEnumType(BoundGenericEnumType e, int index) {
+    none()
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3884,6 +6700,10 @@ module Raw {
     override string toString() { result = "BoundGenericStructType" }
   }
 
+  private Element getImmediateChildOfBoundGenericStructType(BoundGenericStructType e, int index) {
+    none()
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3891,6 +6711,8 @@ module Raw {
     override string toString() { result = "ClassType" }
   }
 
+  private Element getImmediateChildOfClassType(ClassType e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    * An archetype type of PackElementType.
@@ -3899,6 +6721,10 @@ module Raw {
     override string toString() { result = "ElementArchetypeType" }
   }
 
+  private Element getImmediateChildOfElementArchetypeType(ElementArchetypeType e, int index) {
+    none()
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3906,6 +6732,8 @@ module Raw {
     override string toString() { result = "EnumType" }
   }
 
+  private Element getImmediateChildOfEnumType(EnumType e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3913,6 +6741,10 @@ module Raw {
     override string toString() { result = "ExistentialArchetypeType" }
   }
 
+  private Element getImmediateChildOfExistentialArchetypeType(ExistentialArchetypeType e, int index) {
+    none()
+  }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3920,6 +6752,8 @@ module Raw {
     override string toString() { result = "OptionalType" }
   }
 
+  private Element getImmediateChildOfOptionalType(OptionalType e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3927,6 +6761,8 @@ module Raw {
     override string toString() { result = "ProtocolType" }
   }
 
+  private Element getImmediateChildOfProtocolType(ProtocolType e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
@@ -3934,10 +6770,534 @@ module Raw {
     override string toString() { result = "StructType" }
   }
 
+  private Element getImmediateChildOfStructType(StructType e, int index) { none() }
+
   /**
    * INTERNAL: Do not use.
    */
   class VariadicSequenceType extends @variadic_sequence_type, UnarySyntaxSugarType {
     override string toString() { result = "VariadicSequenceType" }
   }
+
+  private Element getImmediateChildOfVariadicSequenceType(VariadicSequenceType e, int index) {
+    none()
+  }
+
+  /**
+   * Gets the immediate child indexed at `index`. Indexes are not guaranteed to be contiguous, but are guaranteed to be distinct.
+   */
+  pragma[nomagic]
+  Element getImmediateChild(Element e, int index) {
+    // why does this look more complicated than it should?
+    // * none() simplifies generation, as we can append `or ...` without a special case for the first item
+    none()
+    or
+    result = getImmediateChildOfComment(e, index)
+    or
+    result = getImmediateChildOfDbFile(e, index)
+    or
+    result = getImmediateChildOfDbLocation(e, index)
+    or
+    result = getImmediateChildOfDiagnostics(e, index)
+    or
+    result = getImmediateChildOfAvailabilityInfo(e, index)
+    or
+    result = getImmediateChildOfAvailabilitySpec(e, index)
+    or
+    result = getImmediateChildOfKeyPathComponent(e, index)
+    or
+    result = getImmediateChildOfMacroRole(e, index)
+    or
+    result = getImmediateChildOfUnspecifiedElement(e, index)
+    or
+    result = getImmediateChildOfCapturedDecl(e, index)
+    or
+    result = getImmediateChildOfEnumCaseDecl(e, index)
+    or
+    result = getImmediateChildOfExtensionDecl(e, index)
+    or
+    result = getImmediateChildOfIfConfigDecl(e, index)
+    or
+    result = getImmediateChildOfImportDecl(e, index)
+    or
+    result = getImmediateChildOfMissingMemberDecl(e, index)
+    or
+    result = getImmediateChildOfPatternBindingDecl(e, index)
+    or
+    result = getImmediateChildOfPoundDiagnosticDecl(e, index)
+    or
+    result = getImmediateChildOfPrecedenceGroupDecl(e, index)
+    or
+    result = getImmediateChildOfTopLevelCodeDecl(e, index)
+    or
+    result = getImmediateChildOfUsingDecl(e, index)
+    or
+    result = getImmediateChildOfEnumElementDecl(e, index)
+    or
+    result = getImmediateChildOfInfixOperatorDecl(e, index)
+    or
+    result = getImmediateChildOfMacroDecl(e, index)
+    or
+    result = getImmediateChildOfPostfixOperatorDecl(e, index)
+    or
+    result = getImmediateChildOfPrefixOperatorDecl(e, index)
+    or
+    result = getImmediateChildOfDeinitializer(e, index)
+    or
+    result = getImmediateChildOfInitializer(e, index)
+    or
+    result = getImmediateChildOfModuleDecl(e, index)
+    or
+    result = getImmediateChildOfSubscriptDecl(e, index)
+    or
+    result = getImmediateChildOfAccessor(e, index)
+    or
+    result = getImmediateChildOfAssociatedTypeDecl(e, index)
+    or
+    result = getImmediateChildOfConcreteVarDecl(e, index)
+    or
+    result = getImmediateChildOfGenericTypeParamDecl(e, index)
+    or
+    result = getImmediateChildOfNamedFunction(e, index)
+    or
+    result = getImmediateChildOfOpaqueTypeDecl(e, index)
+    or
+    result = getImmediateChildOfParamDecl(e, index)
+    or
+    result = getImmediateChildOfTypeAliasDecl(e, index)
+    or
+    result = getImmediateChildOfClassDecl(e, index)
+    or
+    result = getImmediateChildOfEnumDecl(e, index)
+    or
+    result = getImmediateChildOfProtocolDecl(e, index)
+    or
+    result = getImmediateChildOfStructDecl(e, index)
+    or
+    result = getImmediateChildOfArgument(e, index)
+    or
+    result = getImmediateChildOfAppliedPropertyWrapperExpr(e, index)
+    or
+    result = getImmediateChildOfAssignExpr(e, index)
+    or
+    result = getImmediateChildOfBindOptionalExpr(e, index)
+    or
+    result = getImmediateChildOfCaptureListExpr(e, index)
+    or
+    result = getImmediateChildOfConsumeExpr(e, index)
+    or
+    result = getImmediateChildOfCopyExpr(e, index)
+    or
+    result = getImmediateChildOfCurrentContextIsolationExpr(e, index)
+    or
+    result = getImmediateChildOfDeclRefExpr(e, index)
+    or
+    result = getImmediateChildOfDefaultArgumentExpr(e, index)
+    or
+    result = getImmediateChildOfDiscardAssignmentExpr(e, index)
+    or
+    result = getImmediateChildOfDotSyntaxBaseIgnoredExpr(e, index)
+    or
+    result = getImmediateChildOfDynamicTypeExpr(e, index)
+    or
+    result = getImmediateChildOfEnumIsCaseExpr(e, index)
+    or
+    result = getImmediateChildOfErrorExpr(e, index)
+    or
+    result = getImmediateChildOfExtractFunctionIsolationExpr(e, index)
+    or
+    result = getImmediateChildOfForceValueExpr(e, index)
+    or
+    result = getImmediateChildOfIfExpr(e, index)
+    or
+    result = getImmediateChildOfInOutExpr(e, index)
+    or
+    result = getImmediateChildOfKeyPathApplicationExpr(e, index)
+    or
+    result = getImmediateChildOfKeyPathDotExpr(e, index)
+    or
+    result = getImmediateChildOfKeyPathExpr(e, index)
+    or
+    result = getImmediateChildOfLazyInitializationExpr(e, index)
+    or
+    result = getImmediateChildOfMakeTemporarilyEscapableExpr(e, index)
+    or
+    result = getImmediateChildOfMaterializePackExpr(e, index)
+    or
+    result = getImmediateChildOfObjCSelectorExpr(e, index)
+    or
+    result = getImmediateChildOfOneWayExpr(e, index)
+    or
+    result = getImmediateChildOfOpaqueValueExpr(e, index)
+    or
+    result = getImmediateChildOfOpenExistentialExpr(e, index)
+    or
+    result = getImmediateChildOfOptionalEvaluationExpr(e, index)
+    or
+    result = getImmediateChildOfOtherInitializerRefExpr(e, index)
+    or
+    result = getImmediateChildOfOverloadedDeclRefExpr(e, index)
+    or
+    result = getImmediateChildOfPackElementExpr(e, index)
+    or
+    result = getImmediateChildOfPackExpansionExpr(e, index)
+    or
+    result = getImmediateChildOfPropertyWrapperValuePlaceholderExpr(e, index)
+    or
+    result = getImmediateChildOfRebindSelfInInitializerExpr(e, index)
+    or
+    result = getImmediateChildOfSequenceExpr(e, index)
+    or
+    result = getImmediateChildOfSingleValueStmtExpr(e, index)
+    or
+    result = getImmediateChildOfSuperRefExpr(e, index)
+    or
+    result = getImmediateChildOfTapExpr(e, index)
+    or
+    result = getImmediateChildOfTupleElementExpr(e, index)
+    or
+    result = getImmediateChildOfTupleExpr(e, index)
+    or
+    result = getImmediateChildOfTypeExpr(e, index)
+    or
+    result = getImmediateChildOfTypeValueExpr(e, index)
+    or
+    result = getImmediateChildOfUnresolvedDeclRefExpr(e, index)
+    or
+    result = getImmediateChildOfUnresolvedDotExpr(e, index)
+    or
+    result = getImmediateChildOfUnresolvedMemberExpr(e, index)
+    or
+    result = getImmediateChildOfUnresolvedPatternExpr(e, index)
+    or
+    result = getImmediateChildOfUnresolvedSpecializeExpr(e, index)
+    or
+    result = getImmediateChildOfVarargExpansionExpr(e, index)
+    or
+    result = getImmediateChildOfAbiSafeConversionExpr(e, index)
+    or
+    result = getImmediateChildOfActorIsolationErasureExpr(e, index)
+    or
+    result = getImmediateChildOfAnyHashableErasureExpr(e, index)
+    or
+    result = getImmediateChildOfArchetypeToSuperExpr(e, index)
+    or
+    result = getImmediateChildOfArrayExpr(e, index)
+    or
+    result = getImmediateChildOfArrayToPointerExpr(e, index)
+    or
+    result = getImmediateChildOfAutoClosureExpr(e, index)
+    or
+    result = getImmediateChildOfAwaitExpr(e, index)
+    or
+    result = getImmediateChildOfBinaryExpr(e, index)
+    or
+    result = getImmediateChildOfBorrowExpr(e, index)
+    or
+    result = getImmediateChildOfBridgeFromObjCExpr(e, index)
+    or
+    result = getImmediateChildOfBridgeToObjCExpr(e, index)
+    or
+    result = getImmediateChildOfCallExpr(e, index)
+    or
+    result = getImmediateChildOfClassMetatypeToObjectExpr(e, index)
+    or
+    result = getImmediateChildOfCoerceExpr(e, index)
+    or
+    result = getImmediateChildOfCollectionUpcastConversionExpr(e, index)
+    or
+    result = getImmediateChildOfConditionalBridgeFromObjCExpr(e, index)
+    or
+    result = getImmediateChildOfCovariantFunctionConversionExpr(e, index)
+    or
+    result = getImmediateChildOfCovariantReturnConversionExpr(e, index)
+    or
+    result = getImmediateChildOfDerivedToBaseExpr(e, index)
+    or
+    result = getImmediateChildOfDestructureTupleExpr(e, index)
+    or
+    result = getImmediateChildOfDictionaryExpr(e, index)
+    or
+    result = getImmediateChildOfDifferentiableFunctionExpr(e, index)
+    or
+    result = getImmediateChildOfDifferentiableFunctionExtractOriginalExpr(e, index)
+    or
+    result = getImmediateChildOfDotSelfExpr(e, index)
+    or
+    result = getImmediateChildOfErasureExpr(e, index)
+    or
+    result = getImmediateChildOfExistentialMetatypeToObjectExpr(e, index)
+    or
+    result = getImmediateChildOfExplicitClosureExpr(e, index)
+    or
+    result = getImmediateChildOfForceTryExpr(e, index)
+    or
+    result = getImmediateChildOfForeignObjectConversionExpr(e, index)
+    or
+    result = getImmediateChildOfFunctionConversionExpr(e, index)
+    or
+    result = getImmediateChildOfInOutToPointerExpr(e, index)
+    or
+    result = getImmediateChildOfInjectIntoOptionalExpr(e, index)
+    or
+    result = getImmediateChildOfInterpolatedStringLiteralExpr(e, index)
+    or
+    result = getImmediateChildOfLinearFunctionExpr(e, index)
+    or
+    result = getImmediateChildOfLinearFunctionExtractOriginalExpr(e, index)
+    or
+    result = getImmediateChildOfLinearToDifferentiableFunctionExpr(e, index)
+    or
+    result = getImmediateChildOfLoadExpr(e, index)
+    or
+    result = getImmediateChildOfMemberRefExpr(e, index)
+    or
+    result = getImmediateChildOfMetatypeConversionExpr(e, index)
+    or
+    result = getImmediateChildOfNilLiteralExpr(e, index)
+    or
+    result = getImmediateChildOfObjectLiteralExpr(e, index)
+    or
+    result = getImmediateChildOfOptionalTryExpr(e, index)
+    or
+    result = getImmediateChildOfParenExpr(e, index)
+    or
+    result = getImmediateChildOfPointerToPointerExpr(e, index)
+    or
+    result = getImmediateChildOfPostfixUnaryExpr(e, index)
+    or
+    result = getImmediateChildOfPrefixUnaryExpr(e, index)
+    or
+    result = getImmediateChildOfProtocolMetatypeToObjectExpr(e, index)
+    or
+    result = getImmediateChildOfRegexLiteralExpr(e, index)
+    or
+    result = getImmediateChildOfStringToPointerExpr(e, index)
+    or
+    result = getImmediateChildOfSubscriptExpr(e, index)
+    or
+    result = getImmediateChildOfTryExpr(e, index)
+    or
+    result = getImmediateChildOfUnderlyingToOpaqueExpr(e, index)
+    or
+    result = getImmediateChildOfUnevaluatedInstanceExpr(e, index)
+    or
+    result = getImmediateChildOfUnreachableExpr(e, index)
+    or
+    result = getImmediateChildOfUnresolvedMemberChainResultExpr(e, index)
+    or
+    result = getImmediateChildOfUnresolvedTypeConversionExpr(e, index)
+    or
+    result = getImmediateChildOfUnsafeCastExpr(e, index)
+    or
+    result = getImmediateChildOfUnsafeExpr(e, index)
+    or
+    result = getImmediateChildOfBooleanLiteralExpr(e, index)
+    or
+    result = getImmediateChildOfConditionalCheckedCastExpr(e, index)
+    or
+    result = getImmediateChildOfDotSyntaxCallExpr(e, index)
+    or
+    result = getImmediateChildOfDynamicMemberRefExpr(e, index)
+    or
+    result = getImmediateChildOfDynamicSubscriptExpr(e, index)
+    or
+    result = getImmediateChildOfForcedCheckedCastExpr(e, index)
+    or
+    result = getImmediateChildOfInitializerRefCallExpr(e, index)
+    or
+    result = getImmediateChildOfIsExpr(e, index)
+    or
+    result = getImmediateChildOfMagicIdentifierLiteralExpr(e, index)
+    or
+    result = getImmediateChildOfStringLiteralExpr(e, index)
+    or
+    result = getImmediateChildOfFloatLiteralExpr(e, index)
+    or
+    result = getImmediateChildOfIntegerLiteralExpr(e, index)
+    or
+    result = getImmediateChildOfAnyPattern(e, index)
+    or
+    result = getImmediateChildOfBindingPattern(e, index)
+    or
+    result = getImmediateChildOfBoolPattern(e, index)
+    or
+    result = getImmediateChildOfEnumElementPattern(e, index)
+    or
+    result = getImmediateChildOfExprPattern(e, index)
+    or
+    result = getImmediateChildOfIsPattern(e, index)
+    or
+    result = getImmediateChildOfNamedPattern(e, index)
+    or
+    result = getImmediateChildOfOptionalSomePattern(e, index)
+    or
+    result = getImmediateChildOfParenPattern(e, index)
+    or
+    result = getImmediateChildOfTuplePattern(e, index)
+    or
+    result = getImmediateChildOfTypedPattern(e, index)
+    or
+    result = getImmediateChildOfCaseLabelItem(e, index)
+    or
+    result = getImmediateChildOfConditionElement(e, index)
+    or
+    result = getImmediateChildOfStmtCondition(e, index)
+    or
+    result = getImmediateChildOfBraceStmt(e, index)
+    or
+    result = getImmediateChildOfBreakStmt(e, index)
+    or
+    result = getImmediateChildOfCaseStmt(e, index)
+    or
+    result = getImmediateChildOfContinueStmt(e, index)
+    or
+    result = getImmediateChildOfDeferStmt(e, index)
+    or
+    result = getImmediateChildOfDiscardStmt(e, index)
+    or
+    result = getImmediateChildOfFailStmt(e, index)
+    or
+    result = getImmediateChildOfFallthroughStmt(e, index)
+    or
+    result = getImmediateChildOfPoundAssertStmt(e, index)
+    or
+    result = getImmediateChildOfReturnStmt(e, index)
+    or
+    result = getImmediateChildOfThenStmt(e, index)
+    or
+    result = getImmediateChildOfThrowStmt(e, index)
+    or
+    result = getImmediateChildOfYieldStmt(e, index)
+    or
+    result = getImmediateChildOfDoCatchStmt(e, index)
+    or
+    result = getImmediateChildOfDoStmt(e, index)
+    or
+    result = getImmediateChildOfForEachStmt(e, index)
+    or
+    result = getImmediateChildOfRepeatWhileStmt(e, index)
+    or
+    result = getImmediateChildOfSwitchStmt(e, index)
+    or
+    result = getImmediateChildOfGuardStmt(e, index)
+    or
+    result = getImmediateChildOfIfStmt(e, index)
+    or
+    result = getImmediateChildOfWhileStmt(e, index)
+    or
+    result = getImmediateChildOfTypeRepr(e, index)
+    or
+    result = getImmediateChildOfDependentMemberType(e, index)
+    or
+    result = getImmediateChildOfDynamicSelfType(e, index)
+    or
+    result = getImmediateChildOfErrorType(e, index)
+    or
+    result = getImmediateChildOfExistentialType(e, index)
+    or
+    result = getImmediateChildOfInOutType(e, index)
+    or
+    result = getImmediateChildOfIntegerType(e, index)
+    or
+    result = getImmediateChildOfLValueType(e, index)
+    or
+    result = getImmediateChildOfModuleType(e, index)
+    or
+    result = getImmediateChildOfPackElementType(e, index)
+    or
+    result = getImmediateChildOfPackExpansionType(e, index)
+    or
+    result = getImmediateChildOfPackType(e, index)
+    or
+    result = getImmediateChildOfParameterizedProtocolType(e, index)
+    or
+    result = getImmediateChildOfProtocolCompositionType(e, index)
+    or
+    result = getImmediateChildOfTupleType(e, index)
+    or
+    result = getImmediateChildOfUnresolvedType(e, index)
+    or
+    result = getImmediateChildOfBuiltinBridgeObjectType(e, index)
+    or
+    result = getImmediateChildOfBuiltinDefaultActorStorageType(e, index)
+    or
+    result = getImmediateChildOfBuiltinExecutorType(e, index)
+    or
+    result = getImmediateChildOfBuiltinFixedArrayType(e, index)
+    or
+    result = getImmediateChildOfBuiltinFloatType(e, index)
+    or
+    result = getImmediateChildOfBuiltinJobType(e, index)
+    or
+    result = getImmediateChildOfBuiltinNativeObjectType(e, index)
+    or
+    result = getImmediateChildOfBuiltinRawPointerType(e, index)
+    or
+    result = getImmediateChildOfBuiltinRawUnsafeContinuationType(e, index)
+    or
+    result = getImmediateChildOfBuiltinUnsafeValueBufferType(e, index)
+    or
+    result = getImmediateChildOfBuiltinVectorType(e, index)
+    or
+    result = getImmediateChildOfExistentialMetatypeType(e, index)
+    or
+    result = getImmediateChildOfFunctionType(e, index)
+    or
+    result = getImmediateChildOfGenericFunctionType(e, index)
+    or
+    result = getImmediateChildOfGenericTypeParamType(e, index)
+    or
+    result = getImmediateChildOfMetatypeType(e, index)
+    or
+    result = getImmediateChildOfParenType(e, index)
+    or
+    result = getImmediateChildOfTypeAliasType(e, index)
+    or
+    result = getImmediateChildOfUnboundGenericType(e, index)
+    or
+    result = getImmediateChildOfUnmanagedStorageType(e, index)
+    or
+    result = getImmediateChildOfUnownedStorageType(e, index)
+    or
+    result = getImmediateChildOfWeakStorageType(e, index)
+    or
+    result = getImmediateChildOfBuiltinIntegerLiteralType(e, index)
+    or
+    result = getImmediateChildOfBuiltinIntegerType(e, index)
+    or
+    result = getImmediateChildOfDictionaryType(e, index)
+    or
+    result = getImmediateChildOfInlineArrayType(e, index)
+    or
+    result = getImmediateChildOfOpaqueTypeArchetypeType(e, index)
+    or
+    result = getImmediateChildOfPackArchetypeType(e, index)
+    or
+    result = getImmediateChildOfPrimaryArchetypeType(e, index)
+    or
+    result = getImmediateChildOfArraySliceType(e, index)
+    or
+    result = getImmediateChildOfBoundGenericClassType(e, index)
+    or
+    result = getImmediateChildOfBoundGenericEnumType(e, index)
+    or
+    result = getImmediateChildOfBoundGenericStructType(e, index)
+    or
+    result = getImmediateChildOfClassType(e, index)
+    or
+    result = getImmediateChildOfElementArchetypeType(e, index)
+    or
+    result = getImmediateChildOfEnumType(e, index)
+    or
+    result = getImmediateChildOfExistentialArchetypeType(e, index)
+    or
+    result = getImmediateChildOfOptionalType(e, index)
+    or
+    result = getImmediateChildOfProtocolType(e, index)
+    or
+    result = getImmediateChildOfStructType(e, index)
+    or
+    result = getImmediateChildOfVariadicSequenceType(e, index)
+  }
 }
diff --git a/swift/ql/lib/codeql/swift/generated/Synth.qll b/swift/ql/lib/codeql/swift/generated/Synth.qll
index 886fb8550470..27508df94e97 100644
--- a/swift/ql/lib/codeql/swift/generated/Synth.qll
+++ b/swift/ql/lib/codeql/swift/generated/Synth.qll
@@ -1453,66 +1453,84 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
+   * Gets the parent of synthetic element `e`.
+   */
+  Raw::Element getSynthParent(TElement e) { none() }
+
+  /**
+   * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TAvailabilityInfo`, if possible.
    */
   TAvailabilityInfo convertAvailabilityInfoFromRaw(Raw::Element e) { result = TAvailabilityInfo(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TAvailabilitySpec`, if possible.
    */
   TAvailabilitySpec convertAvailabilitySpecFromRaw(Raw::Element e) { result = TAvailabilitySpec(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TComment`, if possible.
    */
   TComment convertCommentFromRaw(Raw::Element e) { result = TComment(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TDbFile`, if possible.
    */
   TDbFile convertDbFileFromRaw(Raw::Element e) { result = TDbFile(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TDbLocation`, if possible.
    */
   TDbLocation convertDbLocationFromRaw(Raw::Element e) { result = TDbLocation(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TDiagnostics`, if possible.
    */
   TDiagnostics convertDiagnosticsFromRaw(Raw::Element e) { result = TDiagnostics(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TKeyPathComponent`, if possible.
    */
   TKeyPathComponent convertKeyPathComponentFromRaw(Raw::Element e) { result = TKeyPathComponent(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TMacroRole`, if possible.
    */
   TMacroRole convertMacroRoleFromRaw(Raw::Element e) { result = TMacroRole(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TUnknownFile`, if possible.
    */
   TUnknownFile convertUnknownFileFromRaw(Raw::Element e) { none() }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TUnknownLocation`, if possible.
    */
   TUnknownLocation convertUnknownLocationFromRaw(Raw::Element e) { none() }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TUnspecifiedElement`, if possible.
    */
   TUnspecifiedElement convertUnspecifiedElementFromRaw(Raw::Element e) {
@@ -1521,12 +1539,14 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TAccessor`, if possible.
    */
   TAccessor convertAccessorFromRaw(Raw::Element e) { result = TAccessor(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TAssociatedTypeDecl`, if possible.
    */
   TAssociatedTypeDecl convertAssociatedTypeDeclFromRaw(Raw::Element e) {
@@ -1535,54 +1555,63 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TCapturedDecl`, if possible.
    */
   TCapturedDecl convertCapturedDeclFromRaw(Raw::Element e) { result = TCapturedDecl(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TClassDecl`, if possible.
    */
   TClassDecl convertClassDeclFromRaw(Raw::Element e) { result = TClassDecl(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TConcreteVarDecl`, if possible.
    */
   TConcreteVarDecl convertConcreteVarDeclFromRaw(Raw::Element e) { result = TConcreteVarDecl(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TDeinitializer`, if possible.
    */
   TDeinitializer convertDeinitializerFromRaw(Raw::Element e) { result = TDeinitializer(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TEnumCaseDecl`, if possible.
    */
   TEnumCaseDecl convertEnumCaseDeclFromRaw(Raw::Element e) { result = TEnumCaseDecl(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TEnumDecl`, if possible.
    */
   TEnumDecl convertEnumDeclFromRaw(Raw::Element e) { result = TEnumDecl(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TEnumElementDecl`, if possible.
    */
   TEnumElementDecl convertEnumElementDeclFromRaw(Raw::Element e) { result = TEnumElementDecl(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TExtensionDecl`, if possible.
    */
   TExtensionDecl convertExtensionDeclFromRaw(Raw::Element e) { result = TExtensionDecl(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TGenericTypeParamDecl`, if possible.
    */
   TGenericTypeParamDecl convertGenericTypeParamDeclFromRaw(Raw::Element e) {
@@ -1591,18 +1620,21 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TIfConfigDecl`, if possible.
    */
   TIfConfigDecl convertIfConfigDeclFromRaw(Raw::Element e) { result = TIfConfigDecl(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TImportDecl`, if possible.
    */
   TImportDecl convertImportDeclFromRaw(Raw::Element e) { result = TImportDecl(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TInfixOperatorDecl`, if possible.
    */
   TInfixOperatorDecl convertInfixOperatorDeclFromRaw(Raw::Element e) {
@@ -1611,18 +1643,21 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TInitializer`, if possible.
    */
   TInitializer convertInitializerFromRaw(Raw::Element e) { result = TInitializer(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TMacroDecl`, if possible.
    */
   TMacroDecl convertMacroDeclFromRaw(Raw::Element e) { result = TMacroDecl(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TMissingMemberDecl`, if possible.
    */
   TMissingMemberDecl convertMissingMemberDeclFromRaw(Raw::Element e) {
@@ -1631,30 +1666,35 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TModuleDecl`, if possible.
    */
   TModuleDecl convertModuleDeclFromRaw(Raw::Element e) { result = TModuleDecl(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TNamedFunction`, if possible.
    */
   TNamedFunction convertNamedFunctionFromRaw(Raw::Element e) { result = TNamedFunction(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TOpaqueTypeDecl`, if possible.
    */
   TOpaqueTypeDecl convertOpaqueTypeDeclFromRaw(Raw::Element e) { result = TOpaqueTypeDecl(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TParamDecl`, if possible.
    */
   TParamDecl convertParamDeclFromRaw(Raw::Element e) { result = TParamDecl(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TPatternBindingDecl`, if possible.
    */
   TPatternBindingDecl convertPatternBindingDeclFromRaw(Raw::Element e) {
@@ -1663,6 +1703,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TPostfixOperatorDecl`, if possible.
    */
   TPostfixOperatorDecl convertPostfixOperatorDeclFromRaw(Raw::Element e) {
@@ -1671,6 +1712,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TPoundDiagnosticDecl`, if possible.
    */
   TPoundDiagnosticDecl convertPoundDiagnosticDeclFromRaw(Raw::Element e) {
@@ -1679,6 +1721,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TPrecedenceGroupDecl`, if possible.
    */
   TPrecedenceGroupDecl convertPrecedenceGroupDeclFromRaw(Raw::Element e) {
@@ -1687,6 +1730,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TPrefixOperatorDecl`, if possible.
    */
   TPrefixOperatorDecl convertPrefixOperatorDeclFromRaw(Raw::Element e) {
@@ -1695,42 +1739,49 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TProtocolDecl`, if possible.
    */
   TProtocolDecl convertProtocolDeclFromRaw(Raw::Element e) { result = TProtocolDecl(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TStructDecl`, if possible.
    */
   TStructDecl convertStructDeclFromRaw(Raw::Element e) { result = TStructDecl(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TSubscriptDecl`, if possible.
    */
   TSubscriptDecl convertSubscriptDeclFromRaw(Raw::Element e) { result = TSubscriptDecl(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TTopLevelCodeDecl`, if possible.
    */
   TTopLevelCodeDecl convertTopLevelCodeDeclFromRaw(Raw::Element e) { result = TTopLevelCodeDecl(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TTypeAliasDecl`, if possible.
    */
   TTypeAliasDecl convertTypeAliasDeclFromRaw(Raw::Element e) { result = TTypeAliasDecl(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TUsingDecl`, if possible.
    */
   TUsingDecl convertUsingDeclFromRaw(Raw::Element e) { result = TUsingDecl(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TAbiSafeConversionExpr`, if possible.
    */
   TAbiSafeConversionExpr convertAbiSafeConversionExprFromRaw(Raw::Element e) {
@@ -1739,6 +1790,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TActorIsolationErasureExpr`, if possible.
    */
   TActorIsolationErasureExpr convertActorIsolationErasureExprFromRaw(Raw::Element e) {
@@ -1747,6 +1799,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TAnyHashableErasureExpr`, if possible.
    */
   TAnyHashableErasureExpr convertAnyHashableErasureExprFromRaw(Raw::Element e) {
@@ -1755,6 +1808,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TAppliedPropertyWrapperExpr`, if possible.
    */
   TAppliedPropertyWrapperExpr convertAppliedPropertyWrapperExprFromRaw(Raw::Element e) {
@@ -1763,6 +1817,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TArchetypeToSuperExpr`, if possible.
    */
   TArchetypeToSuperExpr convertArchetypeToSuperExprFromRaw(Raw::Element e) {
@@ -1771,18 +1826,21 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TArgument`, if possible.
    */
   TArgument convertArgumentFromRaw(Raw::Element e) { result = TArgument(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TArrayExpr`, if possible.
    */
   TArrayExpr convertArrayExprFromRaw(Raw::Element e) { result = TArrayExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TArrayToPointerExpr`, if possible.
    */
   TArrayToPointerExpr convertArrayToPointerExprFromRaw(Raw::Element e) {
@@ -1791,36 +1849,42 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TAssignExpr`, if possible.
    */
   TAssignExpr convertAssignExprFromRaw(Raw::Element e) { result = TAssignExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TAutoClosureExpr`, if possible.
    */
   TAutoClosureExpr convertAutoClosureExprFromRaw(Raw::Element e) { result = TAutoClosureExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TAwaitExpr`, if possible.
    */
   TAwaitExpr convertAwaitExprFromRaw(Raw::Element e) { result = TAwaitExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TBinaryExpr`, if possible.
    */
   TBinaryExpr convertBinaryExprFromRaw(Raw::Element e) { result = TBinaryExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TBindOptionalExpr`, if possible.
    */
   TBindOptionalExpr convertBindOptionalExprFromRaw(Raw::Element e) { result = TBindOptionalExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TBooleanLiteralExpr`, if possible.
    */
   TBooleanLiteralExpr convertBooleanLiteralExprFromRaw(Raw::Element e) {
@@ -1829,12 +1893,14 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TBorrowExpr`, if possible.
    */
   TBorrowExpr convertBorrowExprFromRaw(Raw::Element e) { result = TBorrowExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TBridgeFromObjCExpr`, if possible.
    */
   TBridgeFromObjCExpr convertBridgeFromObjCExprFromRaw(Raw::Element e) {
@@ -1843,24 +1909,28 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TBridgeToObjCExpr`, if possible.
    */
   TBridgeToObjCExpr convertBridgeToObjCExprFromRaw(Raw::Element e) { result = TBridgeToObjCExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TCallExpr`, if possible.
    */
   TCallExpr convertCallExprFromRaw(Raw::Element e) { result = TCallExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TCaptureListExpr`, if possible.
    */
   TCaptureListExpr convertCaptureListExprFromRaw(Raw::Element e) { result = TCaptureListExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TClassMetatypeToObjectExpr`, if possible.
    */
   TClassMetatypeToObjectExpr convertClassMetatypeToObjectExprFromRaw(Raw::Element e) {
@@ -1869,12 +1939,14 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TCoerceExpr`, if possible.
    */
   TCoerceExpr convertCoerceExprFromRaw(Raw::Element e) { result = TCoerceExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TCollectionUpcastConversionExpr`, if possible.
    */
   TCollectionUpcastConversionExpr convertCollectionUpcastConversionExprFromRaw(Raw::Element e) {
@@ -1883,6 +1955,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TConditionalBridgeFromObjCExpr`, if possible.
    */
   TConditionalBridgeFromObjCExpr convertConditionalBridgeFromObjCExprFromRaw(Raw::Element e) {
@@ -1891,6 +1964,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TConditionalCheckedCastExpr`, if possible.
    */
   TConditionalCheckedCastExpr convertConditionalCheckedCastExprFromRaw(Raw::Element e) {
@@ -1899,18 +1973,21 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TConsumeExpr`, if possible.
    */
   TConsumeExpr convertConsumeExprFromRaw(Raw::Element e) { result = TConsumeExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TCopyExpr`, if possible.
    */
   TCopyExpr convertCopyExprFromRaw(Raw::Element e) { result = TCopyExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TCovariantFunctionConversionExpr`, if possible.
    */
   TCovariantFunctionConversionExpr convertCovariantFunctionConversionExprFromRaw(Raw::Element e) {
@@ -1919,6 +1996,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TCovariantReturnConversionExpr`, if possible.
    */
   TCovariantReturnConversionExpr convertCovariantReturnConversionExprFromRaw(Raw::Element e) {
@@ -1927,6 +2005,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TCurrentContextIsolationExpr`, if possible.
    */
   TCurrentContextIsolationExpr convertCurrentContextIsolationExprFromRaw(Raw::Element e) {
@@ -1935,12 +2014,14 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TDeclRefExpr`, if possible.
    */
   TDeclRefExpr convertDeclRefExprFromRaw(Raw::Element e) { result = TDeclRefExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TDefaultArgumentExpr`, if possible.
    */
   TDefaultArgumentExpr convertDefaultArgumentExprFromRaw(Raw::Element e) {
@@ -1949,6 +2030,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TDerivedToBaseExpr`, if possible.
    */
   TDerivedToBaseExpr convertDerivedToBaseExprFromRaw(Raw::Element e) {
@@ -1957,6 +2039,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TDestructureTupleExpr`, if possible.
    */
   TDestructureTupleExpr convertDestructureTupleExprFromRaw(Raw::Element e) {
@@ -1965,12 +2048,14 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TDictionaryExpr`, if possible.
    */
   TDictionaryExpr convertDictionaryExprFromRaw(Raw::Element e) { result = TDictionaryExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TDifferentiableFunctionExpr`, if possible.
    */
   TDifferentiableFunctionExpr convertDifferentiableFunctionExprFromRaw(Raw::Element e) {
@@ -1979,6 +2064,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TDifferentiableFunctionExtractOriginalExpr`, if possible.
    */
   TDifferentiableFunctionExtractOriginalExpr convertDifferentiableFunctionExtractOriginalExprFromRaw(
@@ -1989,6 +2075,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TDiscardAssignmentExpr`, if possible.
    */
   TDiscardAssignmentExpr convertDiscardAssignmentExprFromRaw(Raw::Element e) {
@@ -1997,12 +2084,14 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TDotSelfExpr`, if possible.
    */
   TDotSelfExpr convertDotSelfExprFromRaw(Raw::Element e) { result = TDotSelfExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TDotSyntaxBaseIgnoredExpr`, if possible.
    */
   TDotSyntaxBaseIgnoredExpr convertDotSyntaxBaseIgnoredExprFromRaw(Raw::Element e) {
@@ -2011,6 +2100,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TDotSyntaxCallExpr`, if possible.
    */
   TDotSyntaxCallExpr convertDotSyntaxCallExprFromRaw(Raw::Element e) {
@@ -2019,6 +2109,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TDynamicMemberRefExpr`, if possible.
    */
   TDynamicMemberRefExpr convertDynamicMemberRefExprFromRaw(Raw::Element e) {
@@ -2027,6 +2118,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TDynamicSubscriptExpr`, if possible.
    */
   TDynamicSubscriptExpr convertDynamicSubscriptExprFromRaw(Raw::Element e) {
@@ -2035,30 +2127,35 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TDynamicTypeExpr`, if possible.
    */
   TDynamicTypeExpr convertDynamicTypeExprFromRaw(Raw::Element e) { result = TDynamicTypeExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TEnumIsCaseExpr`, if possible.
    */
   TEnumIsCaseExpr convertEnumIsCaseExprFromRaw(Raw::Element e) { result = TEnumIsCaseExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TErasureExpr`, if possible.
    */
   TErasureExpr convertErasureExprFromRaw(Raw::Element e) { result = TErasureExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TErrorExpr`, if possible.
    */
   TErrorExpr convertErrorExprFromRaw(Raw::Element e) { result = TErrorExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TExistentialMetatypeToObjectExpr`, if possible.
    */
   TExistentialMetatypeToObjectExpr convertExistentialMetatypeToObjectExprFromRaw(Raw::Element e) {
@@ -2067,6 +2164,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TExplicitClosureExpr`, if possible.
    */
   TExplicitClosureExpr convertExplicitClosureExprFromRaw(Raw::Element e) {
@@ -2075,6 +2173,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TExtractFunctionIsolationExpr`, if possible.
    */
   TExtractFunctionIsolationExpr convertExtractFunctionIsolationExprFromRaw(Raw::Element e) {
@@ -2083,24 +2182,28 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TFloatLiteralExpr`, if possible.
    */
   TFloatLiteralExpr convertFloatLiteralExprFromRaw(Raw::Element e) { result = TFloatLiteralExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TForceTryExpr`, if possible.
    */
   TForceTryExpr convertForceTryExprFromRaw(Raw::Element e) { result = TForceTryExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TForceValueExpr`, if possible.
    */
   TForceValueExpr convertForceValueExprFromRaw(Raw::Element e) { result = TForceValueExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TForcedCheckedCastExpr`, if possible.
    */
   TForcedCheckedCastExpr convertForcedCheckedCastExprFromRaw(Raw::Element e) {
@@ -2109,6 +2212,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TForeignObjectConversionExpr`, if possible.
    */
   TForeignObjectConversionExpr convertForeignObjectConversionExprFromRaw(Raw::Element e) {
@@ -2117,6 +2221,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TFunctionConversionExpr`, if possible.
    */
   TFunctionConversionExpr convertFunctionConversionExprFromRaw(Raw::Element e) {
@@ -2125,18 +2230,21 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TIfExpr`, if possible.
    */
   TIfExpr convertIfExprFromRaw(Raw::Element e) { result = TIfExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TInOutExpr`, if possible.
    */
   TInOutExpr convertInOutExprFromRaw(Raw::Element e) { result = TInOutExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TInOutToPointerExpr`, if possible.
    */
   TInOutToPointerExpr convertInOutToPointerExprFromRaw(Raw::Element e) {
@@ -2145,6 +2253,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TInitializerRefCallExpr`, if possible.
    */
   TInitializerRefCallExpr convertInitializerRefCallExprFromRaw(Raw::Element e) {
@@ -2153,6 +2262,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TInjectIntoOptionalExpr`, if possible.
    */
   TInjectIntoOptionalExpr convertInjectIntoOptionalExprFromRaw(Raw::Element e) {
@@ -2161,6 +2271,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TIntegerLiteralExpr`, if possible.
    */
   TIntegerLiteralExpr convertIntegerLiteralExprFromRaw(Raw::Element e) {
@@ -2169,6 +2280,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TInterpolatedStringLiteralExpr`, if possible.
    */
   TInterpolatedStringLiteralExpr convertInterpolatedStringLiteralExprFromRaw(Raw::Element e) {
@@ -2177,12 +2289,14 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TIsExpr`, if possible.
    */
   TIsExpr convertIsExprFromRaw(Raw::Element e) { result = TIsExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TKeyPathApplicationExpr`, if possible.
    */
   TKeyPathApplicationExpr convertKeyPathApplicationExprFromRaw(Raw::Element e) {
@@ -2191,18 +2305,21 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TKeyPathDotExpr`, if possible.
    */
   TKeyPathDotExpr convertKeyPathDotExprFromRaw(Raw::Element e) { result = TKeyPathDotExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TKeyPathExpr`, if possible.
    */
   TKeyPathExpr convertKeyPathExprFromRaw(Raw::Element e) { result = TKeyPathExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TLazyInitializationExpr`, if possible.
    */
   TLazyInitializationExpr convertLazyInitializationExprFromRaw(Raw::Element e) {
@@ -2211,6 +2328,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TLinearFunctionExpr`, if possible.
    */
   TLinearFunctionExpr convertLinearFunctionExprFromRaw(Raw::Element e) {
@@ -2219,6 +2337,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TLinearFunctionExtractOriginalExpr`, if possible.
    */
   TLinearFunctionExtractOriginalExpr convertLinearFunctionExtractOriginalExprFromRaw(Raw::Element e) {
@@ -2227,6 +2346,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TLinearToDifferentiableFunctionExpr`, if possible.
    */
   TLinearToDifferentiableFunctionExpr convertLinearToDifferentiableFunctionExprFromRaw(
@@ -2237,12 +2357,14 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TLoadExpr`, if possible.
    */
   TLoadExpr convertLoadExprFromRaw(Raw::Element e) { result = TLoadExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TMagicIdentifierLiteralExpr`, if possible.
    */
   TMagicIdentifierLiteralExpr convertMagicIdentifierLiteralExprFromRaw(Raw::Element e) {
@@ -2251,6 +2373,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TMakeTemporarilyEscapableExpr`, if possible.
    */
   TMakeTemporarilyEscapableExpr convertMakeTemporarilyEscapableExprFromRaw(Raw::Element e) {
@@ -2259,6 +2382,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TMaterializePackExpr`, if possible.
    */
   TMaterializePackExpr convertMaterializePackExprFromRaw(Raw::Element e) {
@@ -2267,12 +2391,14 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TMemberRefExpr`, if possible.
    */
   TMemberRefExpr convertMemberRefExprFromRaw(Raw::Element e) { result = TMemberRefExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TMetatypeConversionExpr`, if possible.
    */
   TMetatypeConversionExpr convertMetatypeConversionExprFromRaw(Raw::Element e) {
@@ -2281,24 +2407,28 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TMethodLookupExpr`, if possible.
    */
   TMethodLookupExpr convertMethodLookupExprFromRaw(Raw::Element e) { result = TMethodLookupExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TNilLiteralExpr`, if possible.
    */
   TNilLiteralExpr convertNilLiteralExprFromRaw(Raw::Element e) { result = TNilLiteralExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TObjCSelectorExpr`, if possible.
    */
   TObjCSelectorExpr convertObjCSelectorExprFromRaw(Raw::Element e) { result = TObjCSelectorExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TObjectLiteralExpr`, if possible.
    */
   TObjectLiteralExpr convertObjectLiteralExprFromRaw(Raw::Element e) {
@@ -2307,18 +2437,21 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TOneWayExpr`, if possible.
    */
   TOneWayExpr convertOneWayExprFromRaw(Raw::Element e) { result = TOneWayExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TOpaqueValueExpr`, if possible.
    */
   TOpaqueValueExpr convertOpaqueValueExprFromRaw(Raw::Element e) { result = TOpaqueValueExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TOpenExistentialExpr`, if possible.
    */
   TOpenExistentialExpr convertOpenExistentialExprFromRaw(Raw::Element e) {
@@ -2327,6 +2460,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TOptionalEvaluationExpr`, if possible.
    */
   TOptionalEvaluationExpr convertOptionalEvaluationExprFromRaw(Raw::Element e) {
@@ -2335,12 +2469,14 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TOptionalTryExpr`, if possible.
    */
   TOptionalTryExpr convertOptionalTryExprFromRaw(Raw::Element e) { result = TOptionalTryExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TOtherInitializerRefExpr`, if possible.
    */
   TOtherInitializerRefExpr convertOtherInitializerRefExprFromRaw(Raw::Element e) {
@@ -2349,6 +2485,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TOverloadedDeclRefExpr`, if possible.
    */
   TOverloadedDeclRefExpr convertOverloadedDeclRefExprFromRaw(Raw::Element e) {
@@ -2357,12 +2494,14 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TPackElementExpr`, if possible.
    */
   TPackElementExpr convertPackElementExprFromRaw(Raw::Element e) { result = TPackElementExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TPackExpansionExpr`, if possible.
    */
   TPackExpansionExpr convertPackExpansionExprFromRaw(Raw::Element e) {
@@ -2371,12 +2510,14 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TParenExpr`, if possible.
    */
   TParenExpr convertParenExprFromRaw(Raw::Element e) { result = TParenExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TPointerToPointerExpr`, if possible.
    */
   TPointerToPointerExpr convertPointerToPointerExprFromRaw(Raw::Element e) {
@@ -2385,18 +2526,21 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TPostfixUnaryExpr`, if possible.
    */
   TPostfixUnaryExpr convertPostfixUnaryExprFromRaw(Raw::Element e) { result = TPostfixUnaryExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TPrefixUnaryExpr`, if possible.
    */
   TPrefixUnaryExpr convertPrefixUnaryExprFromRaw(Raw::Element e) { result = TPrefixUnaryExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TPropertyWrapperValuePlaceholderExpr`, if possible.
    */
   TPropertyWrapperValuePlaceholderExpr convertPropertyWrapperValuePlaceholderExprFromRaw(
@@ -2407,6 +2551,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TProtocolMetatypeToObjectExpr`, if possible.
    */
   TProtocolMetatypeToObjectExpr convertProtocolMetatypeToObjectExprFromRaw(Raw::Element e) {
@@ -2415,6 +2560,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TRebindSelfInInitializerExpr`, if possible.
    */
   TRebindSelfInInitializerExpr convertRebindSelfInInitializerExprFromRaw(Raw::Element e) {
@@ -2423,18 +2569,21 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TRegexLiteralExpr`, if possible.
    */
   TRegexLiteralExpr convertRegexLiteralExprFromRaw(Raw::Element e) { result = TRegexLiteralExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TSequenceExpr`, if possible.
    */
   TSequenceExpr convertSequenceExprFromRaw(Raw::Element e) { result = TSequenceExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TSingleValueStmtExpr`, if possible.
    */
   TSingleValueStmtExpr convertSingleValueStmtExprFromRaw(Raw::Element e) {
@@ -2443,6 +2592,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TStringLiteralExpr`, if possible.
    */
   TStringLiteralExpr convertStringLiteralExprFromRaw(Raw::Element e) {
@@ -2451,6 +2601,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TStringToPointerExpr`, if possible.
    */
   TStringToPointerExpr convertStringToPointerExprFromRaw(Raw::Element e) {
@@ -2459,54 +2610,63 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TSubscriptExpr`, if possible.
    */
   TSubscriptExpr convertSubscriptExprFromRaw(Raw::Element e) { result = TSubscriptExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TSuperRefExpr`, if possible.
    */
   TSuperRefExpr convertSuperRefExprFromRaw(Raw::Element e) { result = TSuperRefExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TTapExpr`, if possible.
    */
   TTapExpr convertTapExprFromRaw(Raw::Element e) { result = TTapExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TTryExpr`, if possible.
    */
   TTryExpr convertTryExprFromRaw(Raw::Element e) { result = TTryExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TTupleElementExpr`, if possible.
    */
   TTupleElementExpr convertTupleElementExprFromRaw(Raw::Element e) { result = TTupleElementExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TTupleExpr`, if possible.
    */
   TTupleExpr convertTupleExprFromRaw(Raw::Element e) { result = TTupleExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TTypeExpr`, if possible.
    */
   TTypeExpr convertTypeExprFromRaw(Raw::Element e) { result = TTypeExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TTypeValueExpr`, if possible.
    */
   TTypeValueExpr convertTypeValueExprFromRaw(Raw::Element e) { result = TTypeValueExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TUnderlyingToOpaqueExpr`, if possible.
    */
   TUnderlyingToOpaqueExpr convertUnderlyingToOpaqueExprFromRaw(Raw::Element e) {
@@ -2515,6 +2675,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TUnevaluatedInstanceExpr`, if possible.
    */
   TUnevaluatedInstanceExpr convertUnevaluatedInstanceExprFromRaw(Raw::Element e) {
@@ -2523,12 +2684,14 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TUnreachableExpr`, if possible.
    */
   TUnreachableExpr convertUnreachableExprFromRaw(Raw::Element e) { result = TUnreachableExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TUnresolvedDeclRefExpr`, if possible.
    */
   TUnresolvedDeclRefExpr convertUnresolvedDeclRefExprFromRaw(Raw::Element e) {
@@ -2537,6 +2700,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TUnresolvedDotExpr`, if possible.
    */
   TUnresolvedDotExpr convertUnresolvedDotExprFromRaw(Raw::Element e) {
@@ -2545,6 +2709,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TUnresolvedMemberChainResultExpr`, if possible.
    */
   TUnresolvedMemberChainResultExpr convertUnresolvedMemberChainResultExprFromRaw(Raw::Element e) {
@@ -2553,6 +2718,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TUnresolvedMemberExpr`, if possible.
    */
   TUnresolvedMemberExpr convertUnresolvedMemberExprFromRaw(Raw::Element e) {
@@ -2561,6 +2727,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TUnresolvedPatternExpr`, if possible.
    */
   TUnresolvedPatternExpr convertUnresolvedPatternExprFromRaw(Raw::Element e) {
@@ -2569,6 +2736,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TUnresolvedSpecializeExpr`, if possible.
    */
   TUnresolvedSpecializeExpr convertUnresolvedSpecializeExprFromRaw(Raw::Element e) {
@@ -2577,6 +2745,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TUnresolvedTypeConversionExpr`, if possible.
    */
   TUnresolvedTypeConversionExpr convertUnresolvedTypeConversionExprFromRaw(Raw::Element e) {
@@ -2585,18 +2754,21 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TUnsafeCastExpr`, if possible.
    */
   TUnsafeCastExpr convertUnsafeCastExprFromRaw(Raw::Element e) { result = TUnsafeCastExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TUnsafeExpr`, if possible.
    */
   TUnsafeExpr convertUnsafeExprFromRaw(Raw::Element e) { result = TUnsafeExpr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TVarargExpansionExpr`, if possible.
    */
   TVarargExpansionExpr convertVarargExpansionExprFromRaw(Raw::Element e) {
@@ -2605,24 +2777,28 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TAnyPattern`, if possible.
    */
   TAnyPattern convertAnyPatternFromRaw(Raw::Element e) { result = TAnyPattern(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TBindingPattern`, if possible.
    */
   TBindingPattern convertBindingPatternFromRaw(Raw::Element e) { result = TBindingPattern(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TBoolPattern`, if possible.
    */
   TBoolPattern convertBoolPatternFromRaw(Raw::Element e) { result = TBoolPattern(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TEnumElementPattern`, if possible.
    */
   TEnumElementPattern convertEnumElementPatternFromRaw(Raw::Element e) {
@@ -2631,24 +2807,28 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TExprPattern`, if possible.
    */
   TExprPattern convertExprPatternFromRaw(Raw::Element e) { result = TExprPattern(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TIsPattern`, if possible.
    */
   TIsPattern convertIsPatternFromRaw(Raw::Element e) { result = TIsPattern(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TNamedPattern`, if possible.
    */
   TNamedPattern convertNamedPatternFromRaw(Raw::Element e) { result = TNamedPattern(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TOptionalSomePattern`, if possible.
    */
   TOptionalSomePattern convertOptionalSomePatternFromRaw(Raw::Element e) {
@@ -2657,174 +2837,203 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TParenPattern`, if possible.
    */
   TParenPattern convertParenPatternFromRaw(Raw::Element e) { result = TParenPattern(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TTuplePattern`, if possible.
    */
   TTuplePattern convertTuplePatternFromRaw(Raw::Element e) { result = TTuplePattern(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TTypedPattern`, if possible.
    */
   TTypedPattern convertTypedPatternFromRaw(Raw::Element e) { result = TTypedPattern(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TBraceStmt`, if possible.
    */
   TBraceStmt convertBraceStmtFromRaw(Raw::Element e) { result = TBraceStmt(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TBreakStmt`, if possible.
    */
   TBreakStmt convertBreakStmtFromRaw(Raw::Element e) { result = TBreakStmt(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TCaseLabelItem`, if possible.
    */
   TCaseLabelItem convertCaseLabelItemFromRaw(Raw::Element e) { result = TCaseLabelItem(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TCaseStmt`, if possible.
    */
   TCaseStmt convertCaseStmtFromRaw(Raw::Element e) { result = TCaseStmt(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TConditionElement`, if possible.
    */
   TConditionElement convertConditionElementFromRaw(Raw::Element e) { result = TConditionElement(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TContinueStmt`, if possible.
    */
   TContinueStmt convertContinueStmtFromRaw(Raw::Element e) { result = TContinueStmt(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TDeferStmt`, if possible.
    */
   TDeferStmt convertDeferStmtFromRaw(Raw::Element e) { result = TDeferStmt(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TDiscardStmt`, if possible.
    */
   TDiscardStmt convertDiscardStmtFromRaw(Raw::Element e) { result = TDiscardStmt(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TDoCatchStmt`, if possible.
    */
   TDoCatchStmt convertDoCatchStmtFromRaw(Raw::Element e) { result = TDoCatchStmt(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TDoStmt`, if possible.
    */
   TDoStmt convertDoStmtFromRaw(Raw::Element e) { result = TDoStmt(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TFailStmt`, if possible.
    */
   TFailStmt convertFailStmtFromRaw(Raw::Element e) { result = TFailStmt(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TFallthroughStmt`, if possible.
    */
   TFallthroughStmt convertFallthroughStmtFromRaw(Raw::Element e) { result = TFallthroughStmt(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TForEachStmt`, if possible.
    */
   TForEachStmt convertForEachStmtFromRaw(Raw::Element e) { result = TForEachStmt(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TGuardStmt`, if possible.
    */
   TGuardStmt convertGuardStmtFromRaw(Raw::Element e) { result = TGuardStmt(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TIfStmt`, if possible.
    */
   TIfStmt convertIfStmtFromRaw(Raw::Element e) { result = TIfStmt(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TPoundAssertStmt`, if possible.
    */
   TPoundAssertStmt convertPoundAssertStmtFromRaw(Raw::Element e) { result = TPoundAssertStmt(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TRepeatWhileStmt`, if possible.
    */
   TRepeatWhileStmt convertRepeatWhileStmtFromRaw(Raw::Element e) { result = TRepeatWhileStmt(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TReturnStmt`, if possible.
    */
   TReturnStmt convertReturnStmtFromRaw(Raw::Element e) { result = TReturnStmt(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TStmtCondition`, if possible.
    */
   TStmtCondition convertStmtConditionFromRaw(Raw::Element e) { result = TStmtCondition(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TSwitchStmt`, if possible.
    */
   TSwitchStmt convertSwitchStmtFromRaw(Raw::Element e) { result = TSwitchStmt(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TThenStmt`, if possible.
    */
   TThenStmt convertThenStmtFromRaw(Raw::Element e) { result = TThenStmt(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TThrowStmt`, if possible.
    */
   TThrowStmt convertThrowStmtFromRaw(Raw::Element e) { result = TThrowStmt(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TWhileStmt`, if possible.
    */
   TWhileStmt convertWhileStmtFromRaw(Raw::Element e) { result = TWhileStmt(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TYieldStmt`, if possible.
    */
   TYieldStmt convertYieldStmtFromRaw(Raw::Element e) { result = TYieldStmt(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TArraySliceType`, if possible.
    */
   TArraySliceType convertArraySliceTypeFromRaw(Raw::Element e) { result = TArraySliceType(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TBoundGenericClassType`, if possible.
    */
   TBoundGenericClassType convertBoundGenericClassTypeFromRaw(Raw::Element e) {
@@ -2833,6 +3042,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TBoundGenericEnumType`, if possible.
    */
   TBoundGenericEnumType convertBoundGenericEnumTypeFromRaw(Raw::Element e) {
@@ -2841,6 +3051,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TBoundGenericStructType`, if possible.
    */
   TBoundGenericStructType convertBoundGenericStructTypeFromRaw(Raw::Element e) {
@@ -2849,6 +3060,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TBuiltinBridgeObjectType`, if possible.
    */
   TBuiltinBridgeObjectType convertBuiltinBridgeObjectTypeFromRaw(Raw::Element e) {
@@ -2857,6 +3069,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TBuiltinDefaultActorStorageType`, if possible.
    */
   TBuiltinDefaultActorStorageType convertBuiltinDefaultActorStorageTypeFromRaw(Raw::Element e) {
@@ -2865,6 +3078,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TBuiltinExecutorType`, if possible.
    */
   TBuiltinExecutorType convertBuiltinExecutorTypeFromRaw(Raw::Element e) {
@@ -2873,6 +3087,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TBuiltinFixedArrayType`, if possible.
    */
   TBuiltinFixedArrayType convertBuiltinFixedArrayTypeFromRaw(Raw::Element e) {
@@ -2881,12 +3096,14 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TBuiltinFloatType`, if possible.
    */
   TBuiltinFloatType convertBuiltinFloatTypeFromRaw(Raw::Element e) { result = TBuiltinFloatType(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TBuiltinIntegerLiteralType`, if possible.
    */
   TBuiltinIntegerLiteralType convertBuiltinIntegerLiteralTypeFromRaw(Raw::Element e) {
@@ -2895,6 +3112,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TBuiltinIntegerType`, if possible.
    */
   TBuiltinIntegerType convertBuiltinIntegerTypeFromRaw(Raw::Element e) {
@@ -2903,12 +3121,14 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TBuiltinJobType`, if possible.
    */
   TBuiltinJobType convertBuiltinJobTypeFromRaw(Raw::Element e) { result = TBuiltinJobType(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TBuiltinNativeObjectType`, if possible.
    */
   TBuiltinNativeObjectType convertBuiltinNativeObjectTypeFromRaw(Raw::Element e) {
@@ -2917,6 +3137,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TBuiltinRawPointerType`, if possible.
    */
   TBuiltinRawPointerType convertBuiltinRawPointerTypeFromRaw(Raw::Element e) {
@@ -2925,6 +3146,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TBuiltinRawUnsafeContinuationType`, if possible.
    */
   TBuiltinRawUnsafeContinuationType convertBuiltinRawUnsafeContinuationTypeFromRaw(Raw::Element e) {
@@ -2933,6 +3155,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TBuiltinUnsafeValueBufferType`, if possible.
    */
   TBuiltinUnsafeValueBufferType convertBuiltinUnsafeValueBufferTypeFromRaw(Raw::Element e) {
@@ -2941,6 +3164,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TBuiltinVectorType`, if possible.
    */
   TBuiltinVectorType convertBuiltinVectorTypeFromRaw(Raw::Element e) {
@@ -2949,12 +3173,14 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TClassType`, if possible.
    */
   TClassType convertClassTypeFromRaw(Raw::Element e) { result = TClassType(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TDependentMemberType`, if possible.
    */
   TDependentMemberType convertDependentMemberTypeFromRaw(Raw::Element e) {
@@ -2963,18 +3189,21 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TDictionaryType`, if possible.
    */
   TDictionaryType convertDictionaryTypeFromRaw(Raw::Element e) { result = TDictionaryType(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TDynamicSelfType`, if possible.
    */
   TDynamicSelfType convertDynamicSelfTypeFromRaw(Raw::Element e) { result = TDynamicSelfType(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TElementArchetypeType`, if possible.
    */
   TElementArchetypeType convertElementArchetypeTypeFromRaw(Raw::Element e) {
@@ -2983,18 +3212,21 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TEnumType`, if possible.
    */
   TEnumType convertEnumTypeFromRaw(Raw::Element e) { result = TEnumType(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TErrorType`, if possible.
    */
   TErrorType convertErrorTypeFromRaw(Raw::Element e) { result = TErrorType(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TExistentialArchetypeType`, if possible.
    */
   TExistentialArchetypeType convertExistentialArchetypeTypeFromRaw(Raw::Element e) {
@@ -3003,6 +3235,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TExistentialMetatypeType`, if possible.
    */
   TExistentialMetatypeType convertExistentialMetatypeTypeFromRaw(Raw::Element e) {
@@ -3011,18 +3244,21 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TExistentialType`, if possible.
    */
   TExistentialType convertExistentialTypeFromRaw(Raw::Element e) { result = TExistentialType(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TFunctionType`, if possible.
    */
   TFunctionType convertFunctionTypeFromRaw(Raw::Element e) { result = TFunctionType(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TGenericFunctionType`, if possible.
    */
   TGenericFunctionType convertGenericFunctionTypeFromRaw(Raw::Element e) {
@@ -3031,6 +3267,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TGenericTypeParamType`, if possible.
    */
   TGenericTypeParamType convertGenericTypeParamTypeFromRaw(Raw::Element e) {
@@ -3039,42 +3276,49 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TInOutType`, if possible.
    */
   TInOutType convertInOutTypeFromRaw(Raw::Element e) { result = TInOutType(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TInlineArrayType`, if possible.
    */
   TInlineArrayType convertInlineArrayTypeFromRaw(Raw::Element e) { result = TInlineArrayType(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TIntegerType`, if possible.
    */
   TIntegerType convertIntegerTypeFromRaw(Raw::Element e) { result = TIntegerType(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TLValueType`, if possible.
    */
   TLValueType convertLValueTypeFromRaw(Raw::Element e) { result = TLValueType(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TMetatypeType`, if possible.
    */
   TMetatypeType convertMetatypeTypeFromRaw(Raw::Element e) { result = TMetatypeType(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TModuleType`, if possible.
    */
   TModuleType convertModuleTypeFromRaw(Raw::Element e) { result = TModuleType(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TOpaqueTypeArchetypeType`, if possible.
    */
   TOpaqueTypeArchetypeType convertOpaqueTypeArchetypeTypeFromRaw(Raw::Element e) {
@@ -3083,12 +3327,14 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TOptionalType`, if possible.
    */
   TOptionalType convertOptionalTypeFromRaw(Raw::Element e) { result = TOptionalType(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TPackArchetypeType`, if possible.
    */
   TPackArchetypeType convertPackArchetypeTypeFromRaw(Raw::Element e) {
@@ -3097,12 +3343,14 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TPackElementType`, if possible.
    */
   TPackElementType convertPackElementTypeFromRaw(Raw::Element e) { result = TPackElementType(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TPackExpansionType`, if possible.
    */
   TPackExpansionType convertPackExpansionTypeFromRaw(Raw::Element e) {
@@ -3111,12 +3359,14 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TPackType`, if possible.
    */
   TPackType convertPackTypeFromRaw(Raw::Element e) { result = TPackType(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TParameterizedProtocolType`, if possible.
    */
   TParameterizedProtocolType convertParameterizedProtocolTypeFromRaw(Raw::Element e) {
@@ -3125,12 +3375,14 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TParenType`, if possible.
    */
   TParenType convertParenTypeFromRaw(Raw::Element e) { result = TParenType(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TPrimaryArchetypeType`, if possible.
    */
   TPrimaryArchetypeType convertPrimaryArchetypeTypeFromRaw(Raw::Element e) {
@@ -3139,6 +3391,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TProtocolCompositionType`, if possible.
    */
   TProtocolCompositionType convertProtocolCompositionTypeFromRaw(Raw::Element e) {
@@ -3147,36 +3400,42 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TProtocolType`, if possible.
    */
   TProtocolType convertProtocolTypeFromRaw(Raw::Element e) { result = TProtocolType(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TStructType`, if possible.
    */
   TStructType convertStructTypeFromRaw(Raw::Element e) { result = TStructType(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TTupleType`, if possible.
    */
   TTupleType convertTupleTypeFromRaw(Raw::Element e) { result = TTupleType(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TTypeAliasType`, if possible.
    */
   TTypeAliasType convertTypeAliasTypeFromRaw(Raw::Element e) { result = TTypeAliasType(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TTypeRepr`, if possible.
    */
   TTypeRepr convertTypeReprFromRaw(Raw::Element e) { result = TTypeRepr(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TUnboundGenericType`, if possible.
    */
   TUnboundGenericType convertUnboundGenericTypeFromRaw(Raw::Element e) {
@@ -3185,6 +3444,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TUnmanagedStorageType`, if possible.
    */
   TUnmanagedStorageType convertUnmanagedStorageTypeFromRaw(Raw::Element e) {
@@ -3193,6 +3453,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TUnownedStorageType`, if possible.
    */
   TUnownedStorageType convertUnownedStorageTypeFromRaw(Raw::Element e) {
@@ -3201,12 +3462,14 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TUnresolvedType`, if possible.
    */
   TUnresolvedType convertUnresolvedTypeFromRaw(Raw::Element e) { result = TUnresolvedType(e) }
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TVariadicSequenceType`, if possible.
    */
   TVariadicSequenceType convertVariadicSequenceTypeFromRaw(Raw::Element e) {
@@ -3215,6 +3478,7 @@ module Synth {
 
   /**
    * INTERNAL: Do not use.
+   *
    * Converts a raw element to a synthesized `TWeakStorageType`, if possible.
    */
   TWeakStorageType convertWeakStorageTypeFromRaw(Raw::Element e) { result = TWeakStorageType(e) }