1*67e74705SXin Li// RUN: %clang_cc1 -fsyntax-only -verify -Wno-objc-root-class %s 2*67e74705SXin Li// expected-no-diagnostics 3*67e74705SXin Li 4*67e74705SXin Litypedef struct objc_class *Class; 5*67e74705SXin Li 6*67e74705SXin Listruct objc_class { 7*67e74705SXin Li Class isa; 8*67e74705SXin Li}; 9*67e74705SXin Li 10*67e74705SXin Litypedef struct objc_object { 11*67e74705SXin Li Class isa; 12*67e74705SXin Li} *id; 13*67e74705SXin Li 14*67e74705SXin Li@interface XCActivityLogSection 15*67e74705SXin Li+ (unsigned)serializationFormatVersion; 16*67e74705SXin Li+ (unsigned)sectionByDeserializingData; 17*67e74705SXin Li+ (Class)retursClass; 18*67e74705SXin Li@end 19*67e74705SXin Li 20*67e74705SXin Li@implementation XCActivityLogSection 21*67e74705SXin Li 22*67e74705SXin Li+ (unsigned)serializationFormatVersion 23*67e74705SXin Li{ 24*67e74705SXin Li 25*67e74705SXin Li return 0; 26*67e74705SXin Li} 27*67e74705SXin Li+ (unsigned)sectionByDeserializingData { 28*67e74705SXin Li unsigned version; 29*67e74705SXin Li return self.serializationFormatVersion; 30*67e74705SXin Li} 31*67e74705SXin Li 32*67e74705SXin Li+ (Class)retursClass { 33*67e74705SXin Li Class version; 34*67e74705SXin Li // FIXIT. (*version).isa does not work. Results in compiler error. 35*67e74705SXin Li return version->isa; 36*67e74705SXin Li} 37*67e74705SXin Li 38*67e74705SXin Li@end 39*67e74705SXin Li 40*67e74705SXin Li 41