llvm-project/clang/test/Analysis/nil-receiver-undefined-larg...

33 lines
630 B
Objective-C

// RUN: %clang_cc1 -triple i386-apple-darwin8 -analyze -analyzer-checker=core,experimental.core -analyzer-constraints=range -analyzer-store=region -verify %s
// <rdar://problem/6888289> - This test case shows that a nil instance
// variable can possibly be initialized by a method.
@interface RDar6888289
{
id *x;
}
- (void) test:(id) y;
- (void) test2:(id) y;
- (void) invalidate;
@end
id *getVal(void);
@implementation RDar6888289
- (void) test:(id)y {
if (!x)
[self invalidate];
*x = y;
}
- (void) test2:(id)y {
if (!x) {}
*x = y; // expected-warning {{null}}
}
- (void) invalidate {
x = getVal();
}
@end