[clang] [clang] Implement CTAD for type alias template. (PR #77890)

via cfe-commits cfe-commits at lists.llvm.org
Wed Mar 6 01:18:05 PST 2024


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@@ -2612,44 +2669,312 @@ struct ConvertConstructorToDeductionGuideTransform {
     SemaRef.CurrentInstantiationScope->InstantiatedLocal(OldParam, NewParam);
     return NewParam;
   }
+};
 
-  FunctionTemplateDecl *buildDeductionGuide(
-      TemplateParameterList *TemplateParams, CXXConstructorDecl *Ctor,
-      ExplicitSpecifier ES, TypeSourceInfo *TInfo, SourceLocation LocStart,
-      SourceLocation Loc, SourceLocation LocEnd,
-      llvm::ArrayRef<TypedefNameDecl *> MaterializedTypedefs = {}) {
-    DeclarationNameInfo Name(DeductionGuideName, Loc);
-    ArrayRef<ParmVarDecl *> Params =
-        TInfo->getTypeLoc().castAs<FunctionProtoTypeLoc>().getParams();
+// Find all template parameters that appear in the given DeducedArgs.
+// Return the indices of the template parameters in the TemplateParams.
+SmallVector<unsigned> TemplateParamsReferencedInTemplateArgumentList(
+    ArrayRef<NamedDecl *> TemplateParams,
+    ArrayRef<TemplateArgument> DeducedArgs) {
+  struct FindAppearedTemplateParams
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cor3ntin wrote:

@erichkeane you are find with the name? I'm really not a fan!

https://github.com/llvm/llvm-project/pull/77890


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