1*f4a2713aSLionel Sambuc// RUN: %clang_cc1 -fsyntax-only -verify -Wno-objc-root-class %s 2*f4a2713aSLionel Sambuc// expected-no-diagnostics 3*f4a2713aSLionel Sambuc 4*f4a2713aSLionel Sambuctypedef union { 5*f4a2713aSLionel Sambuc struct xx_object_s *_do; 6*f4a2713aSLionel Sambuc struct xx_continuation_s *_dc; 7*f4a2713aSLionel Sambuc struct xx_queue_s *_dq; 8*f4a2713aSLionel Sambuc struct xx_queue_attr_s *_dqa; 9*f4a2713aSLionel Sambuc struct xx_group_s *_dg; 10*f4a2713aSLionel Sambuc struct xx_source_s *_ds; 11*f4a2713aSLionel Sambuc struct xx_source_attr_s *_dsa; 12*f4a2713aSLionel Sambuc struct xx_semaphore_s *_dsema; 13*f4a2713aSLionel Sambuc} xx_object_t __attribute__((transparent_union)); 14*f4a2713aSLionel Sambuc 15*f4a2713aSLionel Sambuc@interface INTF 16*f4a2713aSLionel Sambuc- (void) doSomething : (xx_object_t) xxObject; 17*f4a2713aSLionel Sambuc- (void)testMeth; 18*f4a2713aSLionel Sambuc@end 19*f4a2713aSLionel Sambuc 20*f4a2713aSLionel Sambuc@implementation INTF 21*f4a2713aSLionel Sambuc- (void) doSomething : (xx_object_t) xxObject {} 22*f4a2713aSLionel Sambuc- (void)testMeth { struct xx_queue_s *sq; [self doSomething:sq ]; } 23*f4a2713aSLionel Sambuc@end 24