77 lines
2.7 KiB
Objective-C
77 lines
2.7 KiB
Objective-C
// RUN: %clang_analyze_cc1 -analyzer-checker=core,osx -analyzer-output=text -verify %s
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// RUN: %clang_analyze_cc1 -analyzer-checker=core,osx -analyzer-output=plist-multi-file %s -o %t.plist
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// RUN: %normalize_plist <%t.plist | diff -ub %S/Inputs/expected-plists/undef-value-param.m.plist -
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typedef signed char BOOL;
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@protocol NSObject - (BOOL)isEqual:(id)object; @end
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@interface NSObject <NSObject> {}
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+(id)alloc;
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+(id)new;
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-(id)init;
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-(id)autorelease;
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-(id)copy;
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- (Class)class;
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-(id)retain;
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@end
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typedef const void * CFTypeRef;
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extern void CFRelease(CFTypeRef cf);
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@interface Cell : NSObject
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- (void)test;
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@end
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@interface SpecialString
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+ (id)alloc;
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- (oneway void)release;
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@end
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typedef SpecialString* SCDynamicStoreRef;
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static void CreateRef(SCDynamicStoreRef *storeRef, unsigned x);
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static void CreateRefUndef(SCDynamicStoreRef *storeRef, unsigned x);
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SCDynamicStoreRef anotherCreateRef(unsigned *err, unsigned x);
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@implementation Cell
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- (void) test {
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SCDynamicStoreRef storeRef = 0;
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CreateRef(&storeRef, 4);
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//expected-note@-1{{Calling 'CreateRef'}}
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//expected-note@-2{{Returning from 'CreateRef'}}
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CFRelease(storeRef); //expected-warning {{Null pointer argument in call to CFRelease}}
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//expected-note@-1{{Null pointer argument in call to CFRelease}}
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}
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- (void)test2 {
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SCDynamicStoreRef storeRef; // expected-note {{'storeRef' declared without an initial value}}
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CreateRefUndef(&storeRef, 4);
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//expected-note@-1{{Calling 'CreateRefUndef'}}
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//expected-note@-2{{Returning from 'CreateRefUndef'}}
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CFRelease(storeRef); //expected-warning {{1st function call argument is an uninitialized value}}
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//expected-note@-1{{1st function call argument is an uninitialized value}}
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}
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@end
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static void CreateRef(SCDynamicStoreRef *storeRef, unsigned x) {
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unsigned err = 0;
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SCDynamicStoreRef ref = anotherCreateRef(&err, x);
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if (err) {
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//expected-note@-1{{Assuming 'err' is not equal to 0}}
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//expected-note@-2{{Taking true branch}}
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CFRelease(ref);
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ref = 0; // expected-note{{nil object reference stored to 'ref'}}
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}
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*storeRef = ref; // expected-note{{nil object reference stored to 'storeRef'}}
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}
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static void CreateRefUndef(SCDynamicStoreRef *storeRef, unsigned x) {
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unsigned err = 0;
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SCDynamicStoreRef ref = anotherCreateRef(&err, x);
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if (err) {
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//expected-note@-1{{Assuming 'err' is not equal to 0}}
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//expected-note@-2{{Taking true branch}}
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CFRelease(ref);
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return; // expected-note{{Returning without writing to '*storeRef'}}
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}
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*storeRef = ref;
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}
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