Warn (as gcc does) when @end does not close anything.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@45834 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 3 insertions, 6 deletions

diff --git a/Parse/ParseObjc.cpp b/Parse/ParseObjc.cpp
index 989f1dce17..34694ef5c5 100644
--- a/Parse/ParseObjc.cpp
+++ b/Parse/ParseObjc.cpp
@@ -991,13 +991,10 @@ Parser::DeclTy *Parser::ParseObjCAtEndDeclaration(SourceLocation atLoc) {
   assert(Tok.isObjCAtKeyword(tok::objc_end) &&
          "ParseObjCAtEndDeclaration(): Expected @end");
   ConsumeToken(); // the "end" identifier
-  if (ObjCImpDecl) {
-    // Checking is not necessary except that a parse error might have caused
-    // @implementation not to have been parsed to completion and ObjCImpDecl 
-    // could be 0.
+  if (ObjCImpDecl)
     Actions.ActOnAtEnd(atLoc, ObjCImpDecl);
-  }
-
+  else
+    Diag(atLoc, diag::warn_expected_implementation); // missing @implementation
   return ObjCImpDecl;
 }