[clang] [HLSL] Add implicit resource element type concepts to AST (PR #112600)

[Damyan Pepper via cfe-commits]

================
@@ -483,10 +573,103 @@ static BuiltinTypeDeclBuilder setupBufferType(CXXRecordDecl *Decl, Sema &S,
       .addDefaultHandleConstructor(S, RC);
 }
 
+BinaryOperator *getSizeOfLEQ16Expr(clang::ASTContext &context,
+                                   SourceLocation NameLoc,
+                                   TemplateTypeParmDecl *T) {
+  // Obtain the QualType for 'unsigned long'
+  clang::QualType unsignedLongType = context.UnsignedLongTy;
+
+  // Create a QualType that points to this TemplateTypeParmDecl
+  clang::QualType TType = context.getTypeDeclType(T);
+
+  // Create a TypeSourceInfo for the template type parameter 'T'
+  clang::TypeSourceInfo *TTypeSourceInfo =
+      context.getTrivialTypeSourceInfo(TType, NameLoc);
+
+  clang::UnaryExprOrTypeTraitExpr *sizeOfExpr = new (context)
+      clang::UnaryExprOrTypeTraitExpr(clang::UETT_SizeOf, TTypeSourceInfo,
+                                      unsignedLongType, NameLoc, NameLoc);
+
+  // Create an IntegerLiteral for the value '16' with size type
+  clang::QualType sizeType = context.getSizeType();
+  llvm::APInt sizeValue = llvm::APInt(context.getTypeSize(sizeType), 16);
+  clang::IntegerLiteral *sizeLiteral = new (context)
+      clang::IntegerLiteral(context, sizeValue, sizeType, NameLoc);
----------------
damyanp wrote:

These variables don't follow the expected naming convention (of starting with a capital letter).

* `sizeOfExpr`
* `sizeType`
* `sizeLiteral`


https://github.com/llvm/llvm-project/pull/112600