objective-C arc: Warn under arc about a use of an ivar inside a block

that doesn't have a 'self' as this implicitly captures 'self' and could
create retain cycles. Provide fixit. // rdar://11194874


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@165133 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 20 insertions, 0 deletions

diff --git a/test/FixIt/fixit-missing-self-in-block.m b/test/FixIt/fixit-missing-self-in-block.m
new file mode 100644
index 0000000000..8fd9564ed0
--- /dev/null
+++ b/test/FixIt/fixit-missing-self-in-block.m
@@ -0,0 +1,20 @@
+// RUN: cp %s %t
+// RUN: %clang_cc1 -x objective-c -fobjc-arc -fblocks -fixit %t
+// RUN: %clang_cc1 -x objective-c -fobjc-arc -fblocks -Werror %t
+// rdar://11194874
+
+@interface Root @end
+
+@interface I : Root
+{
+  int _bar;
+}
+@end
+
+@implementation I
+  - (void)foo{
+      ^{
+           _bar = 3;
+       }();
+  }
+@end