[clang-tools-extra] [clang-doc] fix names of conversions for template parameters (PR #140856)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang-tools-extra

Author: Erick Velez (evelez7)

<details>
<summary>Changes</summary>

Fixes #<!-- -->59812

The names of conversion functions of template type parameters were being emitted as "type-parameter-N-M". Now we check if the conversion type is a TemplateTypeParmType and reconstruct the source name.

---
Full diff: https://github.com/llvm/llvm-project/pull/140856.diff


1 Files Affected:

- (modified) clang-tools-extra/clang-doc/Serialize.cpp (+7-1) 


``````````diff
diff --git a/clang-tools-extra/clang-doc/Serialize.cpp b/clang-tools-extra/clang-doc/Serialize.cpp
index 18db427b5239e..585a46112d43d 100644
--- a/clang-tools-extra/clang-doc/Serialize.cpp
+++ b/clang-tools-extra/clang-doc/Serialize.cpp
@@ -525,7 +525,13 @@ template <typename T>
 static void populateInfo(Info &I, const T *D, const FullComment *C,
                          bool &IsInAnonymousNamespace) {
   I.USR = getUSRForDecl(D);
-  I.Name = D->getNameAsString();
+  auto ConversionDecl = dyn_cast_or_null<CXXConversionDecl>(D);
+  if (ConversionDecl && ConversionDecl->getConversionType()
+                            .getTypePtr()
+                            ->isTemplateTypeParmType())
+    I.Name = "operator " + ConversionDecl->getConversionType().getAsString();
+  else
+    I.Name = D->getNameAsString();
   populateParentNamespaces(I.Namespace, D, IsInAnonymousNamespace);
   if (C) {
     I.Description.emplace_back();

``````````

</details>


https://github.com/llvm/llvm-project/pull/140856