82 lines
2.1 KiB
C++
82 lines
2.1 KiB
C++
// RUN: %clang_cc1 -analyze -analyzer-checker=core,debug.ExprInspection -verify %s
|
|
|
|
void clang_analyzer_eval(bool);
|
|
|
|
struct A {
|
|
// This conversion operator allows implicit conversion to bool but not to other integer types.
|
|
typedef A * (A::*MemberPointer);
|
|
operator MemberPointer() const { return m_ptr ? &A::m_ptr : 0; }
|
|
|
|
A *m_ptr;
|
|
|
|
A *getPtr();
|
|
typedef A * (A::*MemberFnPointer)(void);
|
|
};
|
|
|
|
void testConditionalUse() {
|
|
A obj;
|
|
|
|
obj.m_ptr = &obj;
|
|
clang_analyzer_eval(obj.m_ptr); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(&A::m_ptr); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(obj); // expected-warning{{TRUE}}
|
|
|
|
obj.m_ptr = 0;
|
|
clang_analyzer_eval(obj.m_ptr); // expected-warning{{FALSE}}
|
|
clang_analyzer_eval(A::MemberPointer(0)); // expected-warning{{FALSE}}
|
|
clang_analyzer_eval(obj); // expected-warning{{FALSE}}
|
|
|
|
clang_analyzer_eval(&A::getPtr); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(A::MemberFnPointer(0)); // expected-warning{{FALSE}}
|
|
}
|
|
|
|
|
|
void testComparison() {
|
|
clang_analyzer_eval(&A::getPtr == &A::getPtr); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(&A::getPtr == 0); // expected-warning{{FALSE}}
|
|
|
|
// FIXME: Should be TRUE.
|
|
clang_analyzer_eval(&A::m_ptr == &A::m_ptr); // expected-warning{{UNKNOWN}}
|
|
}
|
|
|
|
namespace PR15742 {
|
|
template <class _T1, class _T2> struct A {
|
|
A (const _T1 &, const _T2 &);
|
|
};
|
|
|
|
typedef void *NPIdentifier;
|
|
|
|
template <class T> class B {
|
|
public:
|
|
typedef A<NPIdentifier, bool (T::*) (const NPIdentifier *, unsigned,
|
|
NPIdentifier *)> MethodMapMember;
|
|
};
|
|
|
|
class C : public B<C> {
|
|
public:
|
|
bool Find(const NPIdentifier *, unsigned, NPIdentifier *);
|
|
};
|
|
|
|
void InitStaticData () {
|
|
C::MethodMapMember(0, &C::Find); // don't crash
|
|
}
|
|
}
|
|
|
|
// ---------------
|
|
// FALSE NEGATIVES
|
|
// ---------------
|
|
|
|
bool testDereferencing() {
|
|
A obj;
|
|
obj.m_ptr = 0;
|
|
|
|
A::MemberPointer member = &A::m_ptr;
|
|
|
|
// FIXME: Should be TRUE.
|
|
clang_analyzer_eval(obj.*member == 0); // expected-warning{{UNKNOWN}}
|
|
|
|
member = 0;
|
|
|
|
// FIXME: Should emit a null dereference.
|
|
return obj.*member; // no-warning
|
|
}
|