1*67e74705SXin Li// RUN: %clang_cc1 -fblocks -rewrite-objc -fms-extensions %s -o %t-rw.cpp 2*67e74705SXin Li// RUN: %clang_cc1 -Werror -fsyntax-only -Wno-address-of-temporary -Wno-c++11-narrowing -std=c++11 -D"Class=void*" -D"id=void*" -D"SEL=void*" -U__declspec -D"__declspec(X)=" %t-rw.cpp 3*67e74705SXin Li// rdar://11323187 4*67e74705SXin Li 5*67e74705SXin Litypedef unsigned long NSUInteger; 6*67e74705SXin Li 7*67e74705SXin Litypedef struct _NSRange { 8*67e74705SXin Li NSUInteger location; 9*67e74705SXin Li NSUInteger length; 10*67e74705SXin Li} NSRange; 11*67e74705SXin Li 12*67e74705SXin Litypedef struct { 13*67e74705SXin Li NSUInteger _capacity; 14*67e74705SXin Li NSRange _ranges[0]; 15*67e74705SXin Li} _NSRangeInfo; 16*67e74705SXin Li 17*67e74705SXin Li@interface Foo{ 18*67e74705SXin Li @protected 19*67e74705SXin Li struct _bar { 20*67e74705SXin Li int x:1; 21*67e74705SXin Li int y:1; 22*67e74705SXin Li } bar; 23*67e74705SXin Li union { 24*67e74705SXin Li struct { 25*67e74705SXin Li NSRange _range; 26*67e74705SXin Li } _singleRange; 27*67e74705SXin Li struct { 28*67e74705SXin Li void * _data; 29*67e74705SXin Li void *_reserved; 30*67e74705SXin Li } _multipleRanges; 31*67e74705SXin Li } _internal; 32*67e74705SXin Li} 33*67e74705SXin Li@end 34*67e74705SXin Li@implementation Foo 35*67e74705SXin Li- (void)x:(Foo *)other { 36*67e74705SXin Li bar.x = 0; 37*67e74705SXin Li bar.y = 1; 38*67e74705SXin Li self->_internal._singleRange._range = (( other ->bar.x) ? &( other ->_internal._singleRange._range) : ((NSRange *)(&(((_NSRangeInfo *)( other ->_internal._multipleRanges._data))->_ranges))))[0]; 39*67e74705SXin Li} 40*67e74705SXin Li@end 41*67e74705SXin Li@interface FooS : Foo 42*67e74705SXin Li@end 43*67e74705SXin Li@implementation FooS 44*67e74705SXin Li- (void)y { 45*67e74705SXin Li 46*67e74705SXin Li NSUInteger asdf = (( self ->bar.x) ? 1 : ((_NSRangeInfo *)( self ->_internal._multipleRanges._data))->_capacity ); 47*67e74705SXin Li} 48*67e74705SXin Li@end 49