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// RUN: clang-cc -triple i386-apple-darwin9 -analyze -analyzer-experimental-internal-checks -checker-cfref -analyzer-constraints=basic -analyzer-store=basic %s -verify
// RUN: clang-cc -triple i386-apple-darwin9 -analyze -analyzer-experimental-internal-checks -checker-cfref -analyzer-constraints=basic -analyzer-store=region %s -verify
@interface MyClass {}
- (void *)voidPtrM;
- (int)intM;
- (long long)longlongM;
- (double)doubleM;
- (long double)longDoubleM;
- (void)voidM;
@end
@implementation MyClass
- (void *)voidPtrM { return (void *)0; }
- (int)intM { return 0; }
- (long long)longlongM { return 0; }
- (double)doubleM { return 0.0; }
- (long double)longDoubleM { return 0.0; }
- (void)voidM {}
@end
void createFoo() {
MyClass *obj = 0;
void *v = [obj voidPtrM]; // no-warning
int i = [obj intM]; // no-warning
}
void createFoo2() {
MyClass *obj = 0;
long double ld = [obj longDoubleM]; // expected-warning{{The receiver in the message expression is 'nil' and results in the returned value}}
}
void createFoo3() {
MyClass *obj;
obj = 0;
long long ll = [obj longlongM]; // expected-warning{{The receiver in the message expression is 'nil' and results in the returned value}}
}
void createFoo4() {
MyClass *obj = 0;
double d = [obj doubleM]; // expected-warning{{The receiver in the message expression is 'nil' and results in the returned value}}
}
void createFoo5() {
MyClass *obj = @"";
double d = [obj doubleM]; // no-warning
}
void handleNilPruneLoop(MyClass *obj) {
if (!!obj)
return;
// Test if [obj intM] evaluates to 0, thus pruning the entire loop.
for (int i = 0; i < [obj intM]; i++) {
long long j = [obj longlongM]; // no-warning
}
long long j = [obj longlongM]; // expected-warning{{The receiver in the message expression is 'nil' and results in the returned value}}
}
int handleVoidInComma() {
MyClass *obj = 0;
return [obj voidM], 0;
}
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