forked from OSchip/llvm-project
87 lines
4.7 KiB
Objective-C
87 lines
4.7 KiB
Objective-C
// RUN: %clang_cc1 -triple i386-apple-darwin10 -fblocks -w -analyze -analyzer-checker=osx.NumberObjectConversion %s -verify
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// RUN: %clang_cc1 -triple i386-apple-darwin10 -fblocks -w -analyze -analyzer-checker=osx.NumberObjectConversion -analyzer-config osx.NumberObjectConversion:Pedantic=true -DPEDANTIC %s -verify
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// RUN: %clang_cc1 -triple i386-apple-darwin10 -fblocks -fobjc-arc -w -analyze -analyzer-checker=osx.NumberObjectConversion %s -verify
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// RUN: %clang_cc1 -triple i386-apple-darwin10 -fblocks -fobjc-arc -w -analyze -analyzer-checker=osx.NumberObjectConversion -analyzer-config osx.NumberObjectConversion:Pedantic=true -DPEDANTIC %s -verify
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#include "Inputs/system-header-simulator-objc.h"
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void takes_boolean(BOOL);
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void takes_integer(int);
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void bad(NSNumber *p) {
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#ifdef PEDANTIC
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if (p) {} // expected-warning{{Converting 'NSNumber *' to a plain boolean value for branching; please compare the pointer to nil instead to suppress this warning}}
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if (!p) {} // expected-warning{{Converting 'NSNumber *' to a plain boolean value for branching; please compare the pointer to nil instead to suppress this warning}}
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(!p) ? 1 : 2; // expected-warning{{Converting 'NSNumber *' to a plain boolean value for branching; please compare the pointer to nil instead to suppress this warning}}
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(BOOL)p; // expected-warning{{Converting 'NSNumber *' to a plain BOOL value; please compare the pointer to nil instead to suppress this warning}}
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if (p == 0) {} // expected-warning{{Converting 'NSNumber *' to a plain integer value; please compare the pointer to nil instead to suppress this warning}}
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if (p > 0) {} // expected-warning{{Converting 'NSNumber *' to a plain integer value; pointer value is being used instead}}
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#endif
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if (p == YES) {} // expected-warning{{Converting 'NSNumber *' to a plain BOOL value; pointer value is being used instead}}
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if (p == NO) {} // expected-warning{{Converting 'NSNumber *' to a plain BOOL value; pointer value is being used instead}}
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BOOL x = p; // expected-warning{{Converting 'NSNumber *' to a plain BOOL value; pointer value is being used instead}}
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x = p; // expected-warning{{Converting 'NSNumber *' to a plain BOOL value; pointer value is being used instead}}
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x = (p == YES); // expected-warning{{Converting 'NSNumber *' to a plain BOOL value; pointer value is being used instead}}
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if (p == 1) {} // expected-warning{{Converting 'NSNumber *' to a plain integer value; pointer value is being used instead}}
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int y = p; // expected-warning{{Converting 'NSNumber *' to a plain integer value; pointer value is being used instead}}
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y = p; // expected-warning{{Converting 'NSNumber *' to a plain integer value; pointer value is being used instead}}
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takes_boolean(p); // expected-warning{{Converting 'NSNumber *' to a plain BOOL value; pointer value is being used instead}}
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takes_integer(p); // expected-warning{{Converting 'NSNumber *' to a plain integer value; pointer value is being used instead}}
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takes_boolean(x); // no-warning
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takes_integer(y); // no-warning
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}
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typedef NSNumber *SugaredNumber;
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void bad_sugared(SugaredNumber p) {
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p == YES; // expected-warning{{Converting 'NSNumber *' to a plain BOOL value; pointer value is being used instead}}
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}
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@interface I : NSObject {
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@public
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NSNumber *ivar;
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NSNumber *prop;
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}
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- (NSNumber *)foo;
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@property(copy) NSNumber *prop;
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@end
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@implementation I
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@synthesize prop;
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@end
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void bad_ivar(I *i) {
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i->ivar == YES; // expected-warning{{Converting 'NSNumber *' to a plain BOOL value; pointer value is being used instead}}
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i->prop == YES; // expected-warning{{Converting 'NSNumber *' to a plain BOOL value; pointer value is being used instead}}
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[i foo] == YES; // expected-warning{{Converting 'NSNumber *' to a plain BOOL value; pointer value is being used instead}}
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}
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void good(NSNumber *p) {
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if ([p boolValue] == NO) {} // no-warning
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if ([p boolValue] == YES) {} // no-warning
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BOOL x = [p boolValue]; // no-warning
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}
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void suppression(NSNumber *p) {
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if (p == NULL) {} // no-warning
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if (p == nil) {} // no-warning
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}
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// Conversion of a pointer to an intptr_t is fine.
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typedef long intptr_t;
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typedef unsigned long uintptr_t;
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typedef long fintptr_t; // Fake, for testing the regex.
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void test_intptr_t(NSNumber *p) {
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(long)p; // expected-warning{{Converting 'NSNumber *' to a plain integer value; pointer value is being used instead}}
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(intptr_t)p; // no-warning
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(unsigned long)p; // expected-warning{{Converting 'NSNumber *' to a plain integer value; pointer value is being used instead}}
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(uintptr_t)p; // no-warning
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(fintptr_t)p; // expected-warning{{Converting 'NSNumber *' to a plain integer value; pointer value is being used instead}}
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}
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// Test a different definition of NULL.
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#undef NULL
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#define NULL 0
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void test_non_pointer_NULL(NSNumber *p) {
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if (p == NULL) {} // no-warning
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}
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