[ASTImporter] Import member expr with explicit template args

Summary:
Member expressions with explicit template arguments were not imported
correctly: the DeclRefExpr was missing. This patch fixes.

Reviewers: a_sidorin, shafik, a.sidorin

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D58830

llvm-svn: 355596

1 files changed, 7 insertions, 3 deletions

diff --git a/clang/lib/AST/ASTImporter.cpp b/clang/lib/AST/ASTImporter.cpp
index da102988dec..7ce43094572 100644
--- a/clang/lib/AST/ASTImporter.cpp
+++ b/clang/lib/AST/ASTImporter.cpp
@@ -7129,15 +7129,19 @@ ExpectedStmt ASTNodeImporter::VisitMemberExpr(MemberExpr *E) {
 
   DeclarationNameInfo ToMemberNameInfo(ToName, ToLoc);
 
+  TemplateArgumentListInfo ToTAInfo, *ResInfo = nullptr;
   if (E->hasExplicitTemplateArgs()) {
-    // FIXME: handle template arguments
-    return make_error<ImportError>(ImportError::UnsupportedConstruct);
+    if (Error Err =
+            ImportTemplateArgumentListInfo(E->getLAngleLoc(), E->getRAngleLoc(),
+                                           E->template_arguments(), ToTAInfo))
+      return std::move(Err);
+    ResInfo = &ToTAInfo;
   }
 
   return MemberExpr::Create(
       Importer.getToContext(), ToBase, E->isArrow(), ToOperatorLoc,
       ToQualifierLoc, ToTemplateKeywordLoc, ToMemberDecl, ToFoundDecl,
-      ToMemberNameInfo, nullptr, ToType, E->getValueKind(), E->getObjectKind());
+      ToMemberNameInfo, ResInfo, ToType, E->getValueKind(), E->getObjectKind());
 }
 
 ExpectedStmt