Avoid do drop outer template parameter lists on the floor.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127404 91177308-0d34-0410-b5e6-96231b3b80d8

4 files changed, 21 insertions, 9 deletions

diff --git a/include/clang/Sema/Sema.h b/include/clang/Sema/Sema.h
index b3761f36da..5935864f38 100644
--- a/include/clang/Sema/Sema.h
+++ b/include/clang/Sema/Sema.h
@@ -3184,7 +3184,9 @@ public:
                                 IdentifierInfo *Name, SourceLocation NameLoc,
                                 AttributeList *Attr,
                                 TemplateParameterList *TemplateParams,
-                                AccessSpecifier AS);
+                                AccessSpecifier AS,
+                                unsigned NumOuterTemplateParamLists,
+                            TemplateParameterList **OuterTemplateParamLists);
 
   void translateTemplateArguments(const ASTTemplateArgsPtr &In,
                                   TemplateArgumentListInfo &Out);
diff --git a/lib/Sema/SemaDecl.cpp b/lib/Sema/SemaDecl.cpp
index 5e3c5fe8ef..c9678644cb 100644
--- a/lib/Sema/SemaDecl.cpp
+++ b/lib/Sema/SemaDecl.cpp
@@ -6031,13 +6031,13 @@ Decl *Sema::ActOnTag(Scope *S, unsigned TagSpec, TagUseKind TUK,
         // be a member of another template).
         if (Invalid)
           return 0;
-        
+
         OwnedDecl = false;
         DeclResult Result = CheckClassTemplate(S, TagSpec, TUK, KWLoc,
                                                SS, Name, NameLoc, Attr,
-                                               TemplateParams,
-                                               AS);
-        TemplateParameterLists.release();
+                                               TemplateParams, AS,
+                                               NumMatchedTemplateParamLists,
+                 (TemplateParameterList**) TemplateParameterLists.release());
         return Result.get();
       } else {
         // The "template<>" header is extraneous.
diff --git a/lib/Sema/SemaDeclCXX.cpp b/lib/Sema/SemaDeclCXX.cpp
index 9fbbe414d6..186f23d73f 100644
--- a/lib/Sema/SemaDeclCXX.cpp
+++ b/lib/Sema/SemaDeclCXX.cpp
@@ -6909,10 +6909,12 @@ Decl *Sema::ActOnTemplatedFriendTag(Scope *S, SourceLocation FriendLoc,
       // This is a declaration of a class template.
       if (Invalid)
         return 0;
-        
+
       return CheckClassTemplate(S, TagSpec, TUK_Friend, TagLoc,
                                 SS, Name, NameLoc, Attr,
-                                TemplateParams, AS_public).take();
+                                TemplateParams, AS_public,
+                                NumMatchedTemplateParamLists,
+                   (TemplateParameterList**) TempParamLists.release()).take();
     } else {
       // The "template<>" header is extraneous.
       Diag(TemplateParams->getTemplateLoc(), diag::err_template_tag_noparams)
diff --git a/lib/Sema/SemaTemplate.cpp b/lib/Sema/SemaTemplate.cpp
index 172e45a345..23329a3ab6 100644
--- a/lib/Sema/SemaTemplate.cpp
+++ b/lib/Sema/SemaTemplate.cpp
@@ -793,7 +793,9 @@ Sema::CheckClassTemplate(Scope *S, unsigned TagSpec, TagUseKind TUK,
                          IdentifierInfo *Name, SourceLocation NameLoc,
                          AttributeList *Attr,
                          TemplateParameterList *TemplateParams,
-                         AccessSpecifier AS) {
+                         AccessSpecifier AS,
+                         unsigned NumOuterTemplateParamLists,
+                         TemplateParameterList** OuterTemplateParamLists) {
   assert(TemplateParams && TemplateParams->size() > 0 &&
          "No template parameters");
   assert(TUK != TUK_Reference && "Can only declare or define class templates");
@@ -968,6 +970,10 @@ Sema::CheckClassTemplate(Scope *S, unsigned TagSpec, TagUseKind TUK,
                             PrevClassTemplate->getTemplatedDecl() : 0,
                           /*DelayTypeCreation=*/true);
   SetNestedNameSpecifier(NewClass, SS);
+  if (NumOuterTemplateParamLists > 0)
+    NewClass->setTemplateParameterListsInfo(Context,
+                                            NumOuterTemplateParamLists,
+                                            OuterTemplateParamLists);
 
   ClassTemplateDecl *NewTemplate
     = ClassTemplateDecl::Create(Context, SemanticContext, NameLoc,
@@ -4586,7 +4592,9 @@ Sema::ActOnClassTemplateSpecialization(Scope *S, unsigned TagSpec,
                                 TemplateNameLoc,
                                 Attr,
                                 TemplateParams,
-                                AS_none);
+                                AS_none,
+                                NumMatchedTemplateParamLists,
+                  (TemplateParameterList**) TemplateParameterLists.release());
     }
 
     // Create a new class template partial specialization declaration node.