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1// RUN: %clang_cc1 -fsyntax-only -verify -Wno-objc-root-class %s2// expected-no-diagnostics3 4typedef union {5 struct xx_object_s *_do;6 struct xx_continuation_s *_dc;7 struct xx_queue_s *_dq;8 struct xx_queue_attr_s *_dqa;9 struct xx_group_s *_dg;10 struct xx_source_s *_ds;11 struct xx_source_attr_s *_dsa;12 struct xx_semaphore_s *_dsema;13} xx_object_t __attribute__((transparent_union));14 15@interface INTF16- (void) doSomething : (xx_object_t) xxObject;17- (void)testMeth;18@end19 20@implementation INTF21- (void) doSomething : (xx_object_t) xxObject {}22- (void)testMeth { struct xx_queue_s *sq; [self doSomething:sq ]; }23@end24