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