1// RUN: %clang_cc1 -fsyntax-only -verify -Wparentheses -Wno-objc-root-class %s 2 3// Don't warn about some common ObjC idioms unless we have -Widiomatic-parentheses on. 4 5@interface Object 6{ 7 unsigned uid; 8} 9- (id) init; 10- (id) initWithInt: (int) i; 11- (id) myInit __attribute__((objc_method_family(init))); 12- (void) iterate: (id) coll; 13- (id) nextObject; 14@property unsigned uid; 15@end 16 17@implementation Object 18@synthesize uid; 19- (id) init { 20 if (self = [self init]) { 21 } 22 return self; 23} 24 25- (id) initWithInt: (int) i { 26 if (self = [self initWithInt: i]) { 27 } 28 if (self.uid = 100) { // expected-warning {{using the result of an assignment as a condition without parentheses}} \ 29 // expected-note {{place parentheses around the assignment to silence this warning}} \ 30 // expected-note {{use '==' to turn this assignment into an equality comparison}} 31 // ... 32 } 33 return self; 34} 35 36- (id) myInit { 37 if (self = [self myInit]) { 38 } 39 return self; 40} 41 42- (void) iterate: (id) coll { 43 id cur; 44 while (cur = [coll nextObject]) { 45 } 46} 47 48- (id) nextObject { 49 return self; 50} 51@end 52