Major anonymous union/struct redesign.

A new AST node is introduced:
   def IndirectField : DDecl<Value>;
IndirectFields are injected into the anonymous's parent scope and chain back to
the original field. Name lookup for anonymous entities now result in an
IndirectFieldDecl instead of a FieldDecl.
There is no functionality change, the code generated should be the same.

llvm-svn: 119919

1 files changed, 5 insertions, 0 deletions

diff --git a/clang/lib/Sema/SemaInit.cpp b/clang/lib/Sema/SemaInit.cpp
index 9458e3580c3..1b47332c53f 100644
--- a/clang/lib/Sema/SemaInit.cpp
+++ b/clang/lib/Sema/SemaInit.cpp
@@ -1429,6 +1429,11 @@ InitListChecker::CheckDesignatedInitializer(const InitializedEntity &Entity,
       } else if (!KnownField) {
         // Determine whether we found a field at all.
         ReplacementField = dyn_cast<FieldDecl>(*Lookup.first);
+        
+        // Check if ReplacementField is an anonymous field. 
+        if (!ReplacementField)
+          if (IndirectFieldDecl* IField = dyn_cast<IndirectFieldDecl>(*Lookup.first))
+            ReplacementField = IField->getAnonField();
       }
 
       if (!ReplacementField) {