commit d07cc36c71558b62889691184dd04655a33fd12a
author Douglas Gregor <dgregor@apple.com> Mon Jan 02 17:18:37 2012 +0000
committer Douglas Gregor <dgregor@apple.com> Mon Jan 02 17:18:37 2012 +0000
tree 07e5864c73d5bf9fff8ff618ef6045e7be2c81e8
parent abf07a7fb669dcb74040eef948d61dfe3c59ff17

Diagnose cases where the definition of a particular type is required,
is known (to Clang), but is not visible because the module has not yet
been imported.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147436 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Sema/SemaExprMember.cpp

diff --git a/lib/Sema/SemaExprMember.cpp b/lib/Sema/SemaExprMember.cpp
index 65e4449..3e7f831 100644
--- a/lib/Sema/SemaExprMember.cpp
+++ b/lib/Sema/SemaExprMember.cpp
@@ -1084,6 +1084,11 @@
       goto fail;
     }
 
+    if (RequireCompleteType(OpLoc, BaseType, 
+                            PDiag(diag::err_typecheck_incomplete_tag)
+                              << BaseExpr.get()->getSourceRange()))
+      return ExprError();
+    
     ObjCInterfaceDecl *ClassDeclared;
     ObjCIvarDecl *IV = IDecl->lookupInstanceVariable(Member, ClassDeclared);