Generate valid C# for internal fields of type external specialization

Signed-off-by: Dimitar Dobrev <dpldobrev@protonmail.com>

Author: ddobrev

src/Generator/Extensions/TypeExtensions.cs

@@ -8,6 +8,9 @@ public static class TypeExtensions
     {
         public static int GetWidth(this Type type, ParserTargetInfo targetInfo)
         {
+            if (type is TemplateSpecializationType specializationType)
+                type = specializationType.Desugared.Type;
+
             if (type.IsPrimitiveType(out var primitiveType))
                 return (int)primitiveType.GetInfo(targetInfo, out _).Width;
 
@@ -26,6 +29,9 @@ public static int GetWidth(this Type type, ParserTargetInfo targetInfo)
 
         public static int GetAlignment(this Type type, ParserTargetInfo targetInfo)
         {
+            if (type is TemplateSpecializationType specializationType)
+                type = specializationType.Desugared.Type;
+
             if (type.IsPrimitiveType(out var primitiveType))
                 return (int)primitiveType.GetInfo(targetInfo, out _).Alignment;
 

src/Generator/Passes/TrimSpecializationsPass.cs

@@ -138,16 +138,15 @@ private void CleanSpecializations(Class template)
                 template.Specializations.All(s => s.Ignore))
                 template.ExplicitlyIgnore();
 
-            if (template.Fields.Any(f => f.Type.Desugar() is TemplateParameterType))
-                MoveExternalSpecializations(template);
+            TryMoveExternalSpecializations(template);
         }
 
         /// <summary>
         /// Moves specializations which use in their arguments types located outside
         /// the library their template is located in, to the module of said external types.
         /// </summary>
         /// <param name="template">The template to check for external specializations.</param>
-        private static void MoveExternalSpecializations(Class template)
+        private static void TryMoveExternalSpecializations(Class template)
         {
             for (int i = template.Specializations.Count - 1; i >= 0; i--)
             {

tests/NamespacesDerived/NamespacesDerived.h

@@ -2,6 +2,7 @@
 #include "../NamespacesBase/NamespacesBase.h"
 #include "Independent.h"
 #include <string>
+#include <vector>
 
 // Namespace clashes with NamespacesBase.OverlappingNamespace
 // Test whether qualified names turn out right.
@@ -105,7 +106,13 @@ class CustomAllocator
 class DLL_API Ignored
 {
 private:
-    std::basic_string<char, std::char_traits<char>, CustomAllocator<char>> f;
+    std::basic_string<char, std::char_traits<char>, CustomAllocator<char>> customAllocatedString;
+};
+
+class DLL_API StdFields
+{
+private:
+    std::vector<unsigned int, CustomAllocator<unsigned int>> customAllocatedVector;
 };
 
 DLL_API bool operator<<(const Base& b, const char* str);