1*67e74705SXin Li// RUN: %clang_cc1 -fsyntax-only -verify -Wno-objc-root-class %s 2*67e74705SXin Li 3*67e74705SXin Li@interface PBXTrackableTaskManager @end 4*67e74705SXin Li 5*67e74705SXin Li@implementation PBXTrackableTaskManager 6*67e74705SXin Li- (id) init { return 0; } 7*67e74705SXin Li- (void) unregisterTask:(id) task { 8*67e74705SXin Li @synchronized (self) { 9*67e74705SXin Li id taskID = [task taskIdentifier]; // expected-warning {{method '-taskIdentifier' not found (return type defaults to 'id')}} 10*67e74705SXin Li } 11*67e74705SXin Li} 12*67e74705SXin Li@end 13*67e74705SXin Li 14*67e74705SXin Li 15*67e74705SXin Listruct x { int a; } b; 16*67e74705SXin Li 17*67e74705SXin Livoid test1() { 18*67e74705SXin Li @synchronized (b) { // expected-error {{@synchronized requires an Objective-C object type ('struct x' invalid)}} 19*67e74705SXin Li } 20*67e74705SXin Li 21*67e74705SXin Li @synchronized (42) { // expected-error {{@synchronized requires an Objective-C object type ('int' invalid)}} 22*67e74705SXin Li } 23*67e74705SXin Li} 24