Fix a problem related to rewrite of anonymous unions.

(fixes radar 6948022)

llvm-svn: 93186

1 files changed, 30 insertions, 0 deletions

diff --git a/clang/test/Rewriter/rewrite-anonymous-union.m b/clang/test/Rewriter/rewrite-anonymous-union.m
new file mode 100644
index 00000000000..579a06854fe
--- /dev/null
+++ b/clang/test/Rewriter/rewrite-anonymous-union.m
@@ -0,0 +1,30 @@
+// RUN: %clang_cc1 -rewrite-objc -o - %s
+// rdar://6948022
+
+typedef unsigned int uint32_t;
+
+typedef struct {
+    union {
+        uint32_t daysOfWeek;
+        uint32_t dayOfMonth;
+    };
+    uint32_t nthOccurrence;
+} OSPatternSpecificData;
+
+@interface NSNumber
++ (NSNumber *)numberWithLong:(long)value;
+@end
+
+@interface OSRecurrence  {
+    OSPatternSpecificData _pts;
+}
+- (void)_setTypeSpecificInfoOnRecord;
+@end
+
+@implementation OSRecurrence
+- (void)_setTypeSpecificInfoOnRecord
+{
+    [NSNumber numberWithLong:(_pts.dayOfMonth >= 31 ? -1 : _pts.dayOfMonth)];
+}
+@end
+