hand constant with no type in 8.3

Author: genintho

src/parser/class.js

@@ -234,8 +234,18 @@ module.exports = {
       this.next();
     }
 
-    const [nullable, type] =
-      this.version >= 803 ? this.read_optional_type() : [false, null];
+    let type = null;
+    let nullable = false;
+    if (this.version >= 803) {
+      [nullable, type] = this.read_optional_type();
+    }
+    let name = null;
+
+    // read_optional_type can return a "type" even if the constant does not actually have a type.
+    if (type && type.kind === "name" && this.token === "=") {
+      name = type.name;
+      type = null;
+    }
 
     const result = this.node("classconstant");
     const items = this.read_list(
@@ -256,9 +266,14 @@ module.exports = {
           (this.version >= 700 && this.is("IDENTIFIER"))
         ) {
           constName = this.node("identifier");
-          const name = this.text();
+          name = this.text();
           this.next();
           constName = constName(name);
+        }
+        // read_optional_type is not always returning just a type but
+        else if (name) {
+          constName = this.node("identifier")(name);
+          name = null;
         } else {
           this.expect("IDENTIFIER");
         }

test/snapshot/__snapshots__/classconstant.test.js.snap

@@ -112,6 +112,69 @@ Program {
 }
 `;
 
+exports[`classconstant multiple 8.3 1`] = `
+Program {
+  "children": [
+    Class {
+      "attrGroups": [],
+      "body": [
+        ClassConstant {
+          "attrGroups": [],
+          "constants": [
+            Constant {
+              "kind": "constant",
+              "name": Identifier {
+                "kind": "identifier",
+                "name": "NAME_1",
+              },
+              "value": String {
+                "isDoubleQuote": true,
+                "kind": "string",
+                "raw": ""Hello world!"",
+                "unicode": false,
+                "value": "Hello world!",
+              },
+            },
+            Constant {
+              "kind": "constant",
+              "name": Identifier {
+                "kind": "identifier",
+                "name": "NAME_2",
+              },
+              "value": String {
+                "isDoubleQuote": true,
+                "kind": "string",
+                "raw": ""Other hello world!"",
+                "unicode": false,
+                "value": "Other hello world!",
+              },
+            },
+          ],
+          "final": false,
+          "kind": "classconstant",
+          "nullable": false,
+          "type": null,
+          "visibility": "",
+        },
+      ],
+      "extends": null,
+      "implements": null,
+      "isAbstract": false,
+      "isAnonymous": false,
+      "isFinal": false,
+      "isReadonly": false,
+      "kind": "class",
+      "name": Identifier {
+        "kind": "identifier",
+        "name": "Foo",
+      },
+    },
+  ],
+  "errors": [],
+  "kind": "program",
+}
+`;
+
 exports[`classconstant private 1`] = `
 Program {
   "children": [
@@ -308,6 +371,55 @@ Program {
 }
 `;
 
+exports[`classconstant simple using 8.3 1`] = `
+Program {
+  "children": [
+    Class {
+      "attrGroups": [],
+      "body": [
+        ClassConstant {
+          "attrGroups": [],
+          "constants": [
+            Constant {
+              "kind": "constant",
+              "name": Identifier {
+                "kind": "identifier",
+                "name": "CONSTANT",
+              },
+              "value": String {
+                "isDoubleQuote": true,
+                "kind": "string",
+                "raw": ""Hello world!"",
+                "unicode": false,
+                "value": "Hello world!",
+              },
+            },
+          ],
+          "final": false,
+          "kind": "classconstant",
+          "nullable": false,
+          "type": null,
+          "visibility": "",
+        },
+      ],
+      "extends": null,
+      "implements": null,
+      "isAbstract": false,
+      "isAnonymous": false,
+      "isFinal": false,
+      "isReadonly": false,
+      "kind": "class",
+      "name": Identifier {
+        "kind": "identifier",
+        "name": "Foo",
+      },
+    },
+  ],
+  "errors": [],
+  "kind": "program",
+}
+`;
+
 exports[`classconstant type hinted (supported) 1`] = `
 Program {
   "children": [

test/snapshot/classconstant.test.js

@@ -6,13 +6,33 @@ describe("classconstant", () => {
       parser.parseEval('class Foo { const CONSTANT = "Hello world!"; }'),
     ).toMatchSnapshot();
   });
+  it("simple using 8.3", () => {
+    expect(
+      parser.parseEval(`class Foo { const CONSTANT = "Hello world!"; }`, {
+        parser: { version: 803 },
+      }),
+    ).toMatchSnapshot();
+  });
+
   it("multiple", () => {
     expect(
       parser.parseEval(
         'class Foo { const CONSTANT = "Hello world!", OTHER_CONSTANT = "Other hello world!"; }',
       ),
     ).toMatchSnapshot();
   });
+
+  it("multiple 8.3", () => {
+    expect(
+      parser.parseEval(
+        'class Foo { const NAME_1 = "Hello world!", NAME_2 = "Other hello world!"; }',
+        {
+          parser: { version: 803 },
+        },
+      ),
+    ).toMatchSnapshot();
+  });
+
   it("public", () => {
     expect(
       parser.parseEval('class Foo { public const CONSTANT = "Hello world!"; }'),