Add a new failure kind, FK_Incomplete, to InitializationSequence, to

capture failures when we try to initialize an incomplete
type. Previously, we would (ab)use FK_ConversionFailed, then
occasionally dereference a null pointer when trying to diagnose the
failure. Fixes <rdar://problem/7959007>.

llvm-svn: 104286

1 files changed, 3 insertions, 0 deletions

diff --git a/clang/lib/Sema/SemaDeclCXX.cpp b/clang/lib/Sema/SemaDeclCXX.cpp
index b32055a8a44..bd205267960 100644
--- a/clang/lib/Sema/SemaDeclCXX.cpp
+++ b/clang/lib/Sema/SemaDeclCXX.cpp
@@ -1562,6 +1562,9 @@ BuildImplicitMemberInitializer(Sema &SemaRef, CXXConstructorDecl *Constructor,
                                ImplicitInitializerKind ImplicitInitKind,
                                FieldDecl *Field,
                                CXXBaseOrMemberInitializer *&CXXMemberInit) {
+  if (Field->isInvalidDecl())
+    return true;
+
   if (ImplicitInitKind == IIK_Copy) {
     SourceLocation Loc = Constructor->getLocation();
     ParmVarDecl *Param = Constructor->getParamDecl(0);