95 lines
5.1 KiB
C++
95 lines
5.1 KiB
C++
// RUN: %clang_analyze_cc1 -triple i386-apple-darwin10 -w -std=c++11 -analyzer-checker=osx.NumberObjectConversion %s -verify
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// RUN: %clang_analyze_cc1 -triple i386-apple-darwin10 -w -std=c++11 -analyzer-checker=osx.NumberObjectConversion -analyzer-config osx.NumberObjectConversion:Pedantic=true -DPEDANTIC %s -verify
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#define NULL ((void *)0)
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#include "Inputs/system-header-simulator-cxx.h" // for nullptr
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class OSBoolean {
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public:
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virtual bool isTrue() const;
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virtual bool isFalse() const;
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};
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class OSNumber {
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public:
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virtual bool isEqualTo(const OSNumber *);
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virtual unsigned char unsigned8BitValue() const;
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virtual unsigned short unsigned16BitValue() const;
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virtual unsigned int unsigned32BitValue() const;
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virtual unsigned long long unsigned64BitValue() const;
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};
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extern const OSBoolean *const &kOSBooleanFalse;
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extern const OSBoolean *const &kOSBooleanTrue;
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void takes_bool(bool);
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void bad_boolean(const OSBoolean *p) {
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#ifdef PEDANTIC
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if (p) {} // expected-warning{{Converting a pointer value of type 'class OSBoolean *' to a primitive boolean value; instead, either compare the pointer to nullptr or call getValue()}}
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if (!p) {} // expected-warning{{Converting a pointer value of type 'class OSBoolean *' to a primitive boolean value; instead, either compare the pointer to nullptr or call getValue()}}
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p ? 1 : 2; // expected-warning{{Converting a pointer value of type 'class OSBoolean *' to a primitive boolean value; instead, either compare the pointer to nullptr or call getValue()}}
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#else
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if (p) {} // no-warning
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if (!p) {} // no-warning
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p ? 1 : 2; // no-warning
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#endif
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(bool)p; // expected-warning{{Converting a pointer value of type 'class OSBoolean *' to a primitive bool value; did you mean to call getValue()?}}
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bool x = p; // expected-warning{{Converting a pointer value of type 'class OSBoolean *' to a primitive bool value; did you mean to call getValue()?}}
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x = p; // expected-warning{{Converting a pointer value of type 'class OSBoolean *' to a primitive bool value; did you mean to call getValue()?}}
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takes_bool(p); // expected-warning{{Converting a pointer value of type 'class OSBoolean *' to a primitive bool value; did you mean to call getValue()?}}
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takes_bool(x); // no-warning
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}
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void bad_number(const OSNumber *p) {
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#ifdef PEDANTIC
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if (p) {} // expected-warning{{Converting a pointer value of type 'class OSNumber *' to a scalar boolean value; instead, either compare the pointer to nullptr or call a method on 'class OSNumber *' to get the scalar value}}
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if (!p) {} // expected-warning{{Converting a pointer value of type 'class OSNumber *' to a scalar boolean value; instead, either compare the pointer to nullptr or call a method on 'class OSNumber *' to get the scalar value}}
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p ? 1 : 2; // expected-warning{{Converting a pointer value of type 'class OSNumber *' to a scalar boolean value; instead, either compare the pointer to nullptr or call a method on 'class OSNumber *' to get the scalar value}}
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if (p == 0) {} // expected-warning{{Comparing a pointer value of type 'class OSNumber *' to a scalar integer value; instead, either compare the pointer to nullptr or compare the result of calling a method on 'class OSNumber *' to get the scalar value}}
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#else
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if (p) {} // no-warning
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if (!p) {} // no-warning
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p ? 1 : 2; // no-warning
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if (p == 0) {} // no-warning
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#endif
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(int)p; // expected-warning{{Converting a pointer value of type 'class OSNumber *' to a scalar integer value; did you mean to call a method on 'class OSNumber *' to get the scalar value?}}
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takes_bool(p); // expected-warning{{Converting a pointer value of type 'class OSNumber *' to a scalar bool value; did you mean to call a method on 'class OSNumber *' to get the scalar value?}}
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}
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typedef bool sugared_bool;
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typedef const OSBoolean *sugared_OSBoolean;
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void bad_sugared(sugared_OSBoolean p) {
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sugared_bool x = p; // expected-warning{{Converting a pointer value of type 'class OSBoolean *' to a primitive bool value; did you mean to call getValue()?}}
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}
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void good(const OSBoolean *p) {
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bool x = p->isTrue(); // no-warning
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(bool)p->isFalse(); // no-warning
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if (p == kOSBooleanTrue) {} // no-warning
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}
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void suppression(const OSBoolean *p) {
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if (p == NULL) {} // no-warning
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bool y = (p == nullptr); // 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(const OSBoolean *p) {
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(long)p; // expected-warning{{Converting a pointer value of type 'class OSBoolean *' to a primitive integer value; did you mean to call getValue()?}}
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(intptr_t)p; // no-warning
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(unsigned long)p; // expected-warning{{Converting a pointer value of type 'class OSBoolean *' to a primitive integer value; did you mean to call getValue()?}}
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(uintptr_t)p; // no-warning
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(fintptr_t)p; // expected-warning{{Converting a pointer value of type 'class OSBoolean *' to a primitive integer value; did you mean to call getValue()?}}
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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(const OSBoolean *p) {
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if (p == NULL) {} // no-warning
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}
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