1*f4a2713aSLionel Sambuc// RUN: %clang_cc1 -analyze -analyzer-checker=core -verify -Wno-null-dereference %s 2*f4a2713aSLionel Sambuc 3*f4a2713aSLionel Sambuc@interface Foo 4*f4a2713aSLionel Sambuc- (int &)ref; 5*f4a2713aSLionel Sambuc@end 6*f4a2713aSLionel Sambuc 7*f4a2713aSLionel SambucFoo *getFoo() { return 0; } 8*f4a2713aSLionel Sambuc 9*f4a2713aSLionel Sambucvoid testNullPointerSuppression() { 10*f4a2713aSLionel Sambuc getFoo().ref = 1; 11*f4a2713aSLionel Sambuc} 12*f4a2713aSLionel Sambuc 13*f4a2713aSLionel Sambucvoid testPositiveNullReference() { 14*f4a2713aSLionel Sambuc Foo *x = 0; 15*f4a2713aSLionel Sambuc x.ref = 1; // expected-warning {{The receiver of message 'ref' is nil, which results in forming a null reference}} 16*f4a2713aSLionel Sambuc} 17*f4a2713aSLionel Sambuc 18