PR26195: Set correct NestedNameSpecifierLoc for the dependent initializer

This commit fixes incorrect source positions of dependent c'tor initializers
like in the following code:

template<typename MyBase>
struct Derived: MyBase::InnerIterator
{

Derived() : MyBase::InnerIterator() {} /// This line is problematic: all positions point to InnerIterator and nothing points to MyBase
};

Patch by Serge Preis!

Differential Revision: https://reviews.llvm.org/D32439


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@306103 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 9 insertions, 0 deletions

diff --git a/lib/Sema/SemaDeclCXX.cpp b/lib/Sema/SemaDeclCXX.cpp
index 0b46e15bb0..27b5221fb9 100644
--- a/lib/Sema/SemaDeclCXX.cpp
+++ b/lib/Sema/SemaDeclCXX.cpp
@@ -3778,6 +3778,15 @@ Sema::BuildMemInitializer(Decl *ConstructorD,
           if (BaseType.isNull())
             return true;
 
+          TInfo = Context.CreateTypeSourceInfo(BaseType);
+          DependentNameTypeLoc TL =
+              TInfo->getTypeLoc().castAs<DependentNameTypeLoc>();
+          if (!TL.isNull()) {
+            TL.setNameLoc(IdLoc);
+            TL.setElaboratedKeywordLoc(SourceLocation());
+            TL.setQualifierLoc(SS.getWithLocInContext(Context));
+          }
+
           R.clear();
           R.setLookupName(MemberOrBase);
         }