structured document comment: patch to provide comment for overriding function

template when comment is comming from overridden declaration. 
// rdar://12378793

llvm-svn: 165953

2 files changed, 16 insertions, 1 deletions

diff --git a/clang/lib/AST/Comment.cpp b/clang/lib/AST/Comment.cpp
index a443b91d096..a235b60bea4 100644
--- a/clang/lib/AST/Comment.cpp
+++ b/clang/lib/AST/Comment.cpp
@@ -310,6 +310,21 @@ StringRef ParamCommandComment::getParamName(comments::FullComment *FC) const {
   return Args[0].Text;
 }
 
+StringRef TParamCommandComment::getParamName(comments::FullComment *FC) const {
+  if (FC && isPositionValid()) {
+    const TemplateParameterList *TPL = FC->getThisDeclInfo()->TemplateParameters;
+    for (unsigned i = 0, e = getDepth(); i != e; ++i) {
+      if (i == e-1)
+        return TPL->getParam(getIndex(i))->getName();
+      const NamedDecl *Param = TPL->getParam(getIndex(i));
+      if (const TemplateTemplateParmDecl *TTP =
+          dyn_cast<TemplateTemplateParmDecl>(Param))
+        TPL = TTP->getTemplateParameters();
+    }
+  }
+  return Args[0].Text;
+}
+  
 } // end namespace comments
 } // end namespace clang
 
diff --git a/clang/lib/AST/CommentDumper.cpp b/clang/lib/AST/CommentDumper.cpp
index 36261c423be..4f51cd5622c 100644
--- a/clang/lib/AST/CommentDumper.cpp
+++ b/clang/lib/AST/CommentDumper.cpp
@@ -197,7 +197,7 @@ void CommentDumper::visitTParamCommandComment(const TParamCommandComment *C) {
   dumpComment(C);
 
   if (C->hasParamName()) {
-    OS << " Param=\"" << C->getParamName() << "\"";
+    OS << " Param=\"" << C->getParamName(const_cast<FullComment*>(FC)) << "\"";
   }
 
   if (C->isPositionValid()) {