[ASTImporter] Remove obsolete function ImportTemplateParameterList.

Summary:
The ASTNodeImporter::ImportTemplateParameterList is replaced by a
template specialization of 'import' that already exists and does
(almost) the same thing.

Reviewers: martong, a.sidorin, shafik, a_sidorin

Reviewed By: martong

Subscribers: rnkovacs, dkrupp, Szelethus, gamesh411, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D59134

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@356564 91177308-0d34-0410-b5e6-96231b3b80d8

lib/AST/ASTImporter.cpp

@@ -402,8 +402,6 @@ namespace clang {
     Error ImportDefinition(
         ObjCProtocolDecl *From, ObjCProtocolDecl *To,
         ImportDefinitionKind Kind = IDK_Default);
-    Expected<TemplateParameterList *> ImportTemplateParameterList(
-        TemplateParameterList *Params);
     Error ImportTemplateArguments(
         const TemplateArgument *FromArgs, unsigned NumFromArgs,
         SmallVectorImpl<TemplateArgument> &ToArgs);
@@ -1899,40 +1897,6 @@ Error ASTNodeImporter::ImportDefinition(
   return Error::success();
 }
 
-// FIXME: Remove this, use `import` instead.
-Expected<TemplateParameterList *> ASTNodeImporter::ImportTemplateParameterList(
-    TemplateParameterList *Params) {
-  SmallVector<NamedDecl *, 4> ToParams(Params->size());
-  if (Error Err = ImportContainerChecked(*Params, ToParams))
-    return std::move(Err);
-
-  Expr *ToRequiresClause;
-  if (Expr *const R = Params->getRequiresClause()) {
-    if (Error Err = importInto(ToRequiresClause, R))
-      return std::move(Err);
-  } else {
-    ToRequiresClause = nullptr;
-  }
-
-  auto ToTemplateLocOrErr = import(Params->getTemplateLoc());
-  if (!ToTemplateLocOrErr)
-    return ToTemplateLocOrErr.takeError();
-  auto ToLAngleLocOrErr = import(Params->getLAngleLoc());
-  if (!ToLAngleLocOrErr)
-    return ToLAngleLocOrErr.takeError();
-  auto ToRAngleLocOrErr = import(Params->getRAngleLoc());
-  if (!ToRAngleLocOrErr)
-    return ToRAngleLocOrErr.takeError();
-
-  return TemplateParameterList::Create(
-      Importer.getToContext(),
-      *ToTemplateLocOrErr,
-      *ToLAngleLocOrErr,
-      ToParams,
-      *ToRAngleLocOrErr,
-      ToRequiresClause);
-}
-
 Error ASTNodeImporter::ImportTemplateArguments(
     const TemplateArgument *FromArgs, unsigned NumFromArgs,
     SmallVectorImpl<TemplateArgument> &ToArgs) {
@@ -3479,7 +3443,7 @@ ExpectedDecl ASTNodeImporter::VisitFriendDecl(FriendDecl *D) {
   SmallVector<TemplateParameterList *, 1> ToTPLists(D->NumTPLists);
   auto **FromTPLists = D->getTrailingObjects<TemplateParameterList *>();
   for (unsigned I = 0; I < D->NumTPLists; I++) {
-    if (auto ListOrErr = ImportTemplateParameterList(FromTPLists[I]))
+    if (auto ListOrErr = import(FromTPLists[I]))
       ToTPLists[I] = *ListOrErr;
     else
       return ListOrErr.takeError();
@@ -4914,8 +4878,7 @@ ASTNodeImporter::VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D) {
     return LocationOrErr.takeError();
 
   // Import template parameters.
-  auto TemplateParamsOrErr = ImportTemplateParameterList(
-      D->getTemplateParameters());
+  auto TemplateParamsOrErr = import(D->getTemplateParameters());
   if (!TemplateParamsOrErr)
     return TemplateParamsOrErr.takeError();
 
@@ -5002,8 +4965,7 @@ ExpectedDecl ASTNodeImporter::VisitClassTemplateDecl(ClassTemplateDecl *D) {
     return std::move(Err);
 
   // Create the class template declaration itself.
-  auto TemplateParamsOrErr = ImportTemplateParameterList(
-      D->getTemplateParameters());
+  auto TemplateParamsOrErr = import(D->getTemplateParameters());
   if (!TemplateParamsOrErr)
     return TemplateParamsOrErr.takeError();
 
@@ -5135,8 +5097,7 @@ ExpectedDecl ASTNodeImporter::VisitClassTemplateSpecializationDecl(
       return std::move(Err);
     CanonInjType = CanonInjType.getCanonicalType();
 
-    auto ToTPListOrErr = ImportTemplateParameterList(
-        PartialSpec->getTemplateParameters());
+    auto ToTPListOrErr = import(PartialSpec->getTemplateParameters());
     if (!ToTPListOrErr)
       return ToTPListOrErr.takeError();
 
@@ -5290,8 +5251,7 @@ ExpectedDecl ASTNodeImporter::VisitVarTemplateDecl(VarTemplateDecl *D) {
     return std::move(Err);
 
   // Create the variable template declaration itself.
-  auto TemplateParamsOrErr = ImportTemplateParameterList(
-      D->getTemplateParameters());
+  auto TemplateParamsOrErr = import(D->getTemplateParameters());
   if (!TemplateParamsOrErr)
     return TemplateParamsOrErr.takeError();
 
@@ -5396,8 +5356,7 @@ ExpectedDecl ASTNodeImporter::VisitVarTemplateSpecializationDecl(
           *FromTAArgsAsWritten, ArgInfos))
         return std::move(Err);
 
-      auto ToTPListOrErr = ImportTemplateParameterList(
-          FromPartial->getTemplateParameters());
+      auto ToTPListOrErr = import(FromPartial->getTemplateParameters());
       if (!ToTPListOrErr)
         return ToTPListOrErr.takeError();
 
@@ -5505,8 +5464,7 @@ ASTNodeImporter::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) {
     }
   }
 
-  auto ParamsOrErr = ImportTemplateParameterList(
-      D->getTemplateParameters());
+  auto ParamsOrErr = import(D->getTemplateParameters());
   if (!ParamsOrErr)
     return ParamsOrErr.takeError();