1*67e74705SXin Li// RUN: %clang_cc1 -analyze -analyzer-checker=core -verify -Wno-null-dereference %s 2*67e74705SXin Li 3*67e74705SXin Li@interface Foo 4*67e74705SXin Li- (int &)ref; 5*67e74705SXin Li@end 6*67e74705SXin Li 7*67e74705SXin LiFoo *getFoo() { return 0; } 8*67e74705SXin Li 9*67e74705SXin Livoid testNullPointerSuppression() { 10*67e74705SXin Li getFoo().ref = 1; 11*67e74705SXin Li} 12*67e74705SXin Li 13*67e74705SXin Livoid testPositiveNullReference() { 14*67e74705SXin Li Foo *x = 0; 15*67e74705SXin Li x.ref = 1; // expected-warning {{The receiver of message 'ref' is nil, which results in forming a null reference}} 16*67e74705SXin Li} 17*67e74705SXin Li 18