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-rw-r--r--clang/test/SemaObjC/transparent-union.m22
1 files changed, 22 insertions, 0 deletions
diff --git a/clang/test/SemaObjC/transparent-union.m b/clang/test/SemaObjC/transparent-union.m
new file mode 100644
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+++ b/clang/test/SemaObjC/transparent-union.m
@@ -0,0 +1,22 @@
+// RUN: %clang_cc1 -fsyntax-only -verify -Wno-objc-root-class %s
+
+typedef union {
+ struct xx_object_s *_do;
+ struct xx_continuation_s *_dc;
+ struct xx_queue_s *_dq;
+ struct xx_queue_attr_s *_dqa;
+ struct xx_group_s *_dg;
+ struct xx_source_s *_ds;
+ struct xx_source_attr_s *_dsa;
+ struct xx_semaphore_s *_dsema;
+} xx_object_t __attribute__((transparent_union));
+
+@interface INTF
+- (void) doSomething : (xx_object_t) xxObject;
+- (void)testMeth;
+@end
+
+@implementation INTF
+- (void) doSomething : (xx_object_t) xxObject {}
+- (void)testMeth { struct xx_queue_s *sq; [self doSomething:sq ]; }
+@end