Objective-C. Patch to handle bridge attribute warnings

correctly when both NSAttributedString and
NSMutableAttributedString are specified on the same
CFStruct via different typedefs. // rdar://17238954

llvm-svn: 210660

1 files changed, 26 insertions, 0 deletions

diff --git a/clang/test/SemaObjC/objc-mixed-bridge-attribute.m b/clang/test/SemaObjC/objc-mixed-bridge-attribute.m
new file mode 100644
index 00000000000..5fa34731967
--- /dev/null
+++ b/clang/test/SemaObjC/objc-mixed-bridge-attribute.m
@@ -0,0 +1,26 @@
+// RUN: %clang_cc1 -fsyntax-only -verify -Wno-objc-root-class %s
+// expected-no-diagnostics
+// rdar://17238954
+
+typedef const struct __attribute__((objc_bridge(NSAttributedString))) __CFAttributedString *CFAttributedStringRef;
+
+typedef struct __attribute__((objc_bridge_mutable(NSMutableAttributedString))) __CFAttributedString *CFMutableAttributedStringRef;
+
+@interface NSAttributedString
+@end
+
+@interface NSMutableAttributedString
+@end
+
+struct __CFAttributedString {
+};
+
+void Test1(CFAttributedStringRef attrStr)
+{
+  id x = (NSAttributedString *) attrStr; // no warning
+}
+
+void Test2(NSAttributedString *attrStr) {
+  CFAttributedStringRef cfsr = (CFAttributedStringRef) attrStr;
+}
+