369 lines
7.3 KiB
C++
369 lines
7.3 KiB
C++
// RUN: %clang_analyze_cc1 -w -verify %s\
|
|
// RUN: -analyzer-checker=core,unix.Malloc,cplusplus.NewDeleteLeaks\
|
|
// RUN: -analyzer-checker=debug.ExprInspection -std=c++11
|
|
// RUN: %clang_analyze_cc1 -w -verify %s\
|
|
// RUN: -analyzer-checker=core,unix.Malloc,cplusplus.NewDeleteLeaks\
|
|
// RUN: -analyzer-checker=debug.ExprInspection -std=c++17
|
|
// RUN: %clang_analyze_cc1 -w -verify %s\
|
|
// RUN: -analyzer-checker=core,unix.Malloc,cplusplus.NewDeleteLeaks\
|
|
// RUN: -analyzer-checker=debug.ExprInspection -std=c++11\
|
|
// RUN: -DTEST_INLINABLE_ALLOCATORS
|
|
// RUN: %clang_analyze_cc1 -w -verify %s\
|
|
// RUN: -analyzer-checker=core,unix.Malloc,cplusplus.NewDeleteLeaks\
|
|
// RUN: -analyzer-checker=debug.ExprInspection -std=c++17\
|
|
// RUN: -DTEST_INLINABLE_ALLOCATORS
|
|
|
|
void clang_analyzer_eval(bool);
|
|
|
|
#include "Inputs/system-header-simulator-cxx.h"
|
|
|
|
class A {
|
|
int x;
|
|
public:
|
|
A();
|
|
};
|
|
|
|
A::A() : x(0) {
|
|
clang_analyzer_eval(x == 0); // expected-warning{{TRUE}}
|
|
}
|
|
|
|
|
|
class DirectMember {
|
|
int x;
|
|
public:
|
|
DirectMember(int value) : x(value) {}
|
|
|
|
int getX() { return x; }
|
|
};
|
|
|
|
void testDirectMember() {
|
|
DirectMember obj(3);
|
|
clang_analyzer_eval(obj.getX() == 3); // expected-warning{{TRUE}}
|
|
}
|
|
|
|
|
|
class IndirectMember {
|
|
struct {
|
|
int x;
|
|
};
|
|
public:
|
|
IndirectMember(int value) : x(value) {}
|
|
|
|
int getX() { return x; }
|
|
};
|
|
|
|
void testIndirectMember() {
|
|
IndirectMember obj(3);
|
|
clang_analyzer_eval(obj.getX() == 3); // expected-warning{{TRUE}}
|
|
}
|
|
|
|
|
|
struct DelegatingConstructor {
|
|
int x;
|
|
DelegatingConstructor(int y) { x = y; }
|
|
DelegatingConstructor() : DelegatingConstructor(42) {}
|
|
};
|
|
|
|
void testDelegatingConstructor() {
|
|
DelegatingConstructor obj;
|
|
clang_analyzer_eval(obj.x == 42); // expected-warning{{TRUE}}
|
|
}
|
|
|
|
|
|
struct RefWrapper {
|
|
RefWrapper(int *p) : x(*p) {}
|
|
RefWrapper(int &r) : x(r) {}
|
|
int &x;
|
|
};
|
|
|
|
void testReferenceMember() {
|
|
int *p = 0;
|
|
RefWrapper X(p); // expected-warning@-7 {{Dereference of null pointer}}
|
|
}
|
|
|
|
void testReferenceMember2() {
|
|
int *p = 0;
|
|
RefWrapper X(*p); // expected-warning {{Forming reference to null pointer}}
|
|
}
|
|
|
|
|
|
extern "C" char *strdup(const char *);
|
|
|
|
class StringWrapper {
|
|
char *str;
|
|
public:
|
|
StringWrapper(const char *input) : str(strdup(input)) {} // no-warning
|
|
};
|
|
|
|
|
|
// PR15070 - Constructing a type containing a non-POD array mistakenly
|
|
// tried to perform a bind instead of relying on the CXXConstructExpr,
|
|
// which caused a cast<> failure in RegionStore.
|
|
namespace DefaultConstructorWithCleanups {
|
|
class Element {
|
|
public:
|
|
int value;
|
|
|
|
class Helper {
|
|
public:
|
|
~Helper();
|
|
};
|
|
Element(Helper h = Helper());
|
|
};
|
|
class Wrapper {
|
|
public:
|
|
Element arr[2];
|
|
|
|
Wrapper();
|
|
};
|
|
|
|
Wrapper::Wrapper() /* initializers synthesized */ {}
|
|
|
|
int test() {
|
|
Wrapper w;
|
|
return w.arr[0].value; // no-warning
|
|
}
|
|
}
|
|
|
|
namespace DefaultMemberInitializers {
|
|
struct Wrapper {
|
|
int value = 42;
|
|
|
|
Wrapper() {}
|
|
Wrapper(int x) : value(x) {}
|
|
Wrapper(bool) {}
|
|
};
|
|
|
|
void test() {
|
|
Wrapper w1;
|
|
clang_analyzer_eval(w1.value == 42); // expected-warning{{TRUE}}
|
|
|
|
Wrapper w2(50);
|
|
clang_analyzer_eval(w2.value == 50); // expected-warning{{TRUE}}
|
|
|
|
Wrapper w3(false);
|
|
clang_analyzer_eval(w3.value == 42); // expected-warning{{TRUE}}
|
|
}
|
|
|
|
struct StringWrapper {
|
|
const char s[4] = "abc";
|
|
const char *p = "xyz";
|
|
|
|
StringWrapper(bool) {}
|
|
};
|
|
|
|
void testString() {
|
|
StringWrapper w(true);
|
|
clang_analyzer_eval(w.s[1] == 'b'); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(w.p[1] == 'y'); // expected-warning{{TRUE}}
|
|
}
|
|
}
|
|
|
|
namespace ReferenceInitialization {
|
|
struct OtherStruct {
|
|
OtherStruct(int i);
|
|
~OtherStruct();
|
|
};
|
|
|
|
struct MyStruct {
|
|
MyStruct(int i);
|
|
MyStruct(OtherStruct os);
|
|
|
|
void method() const;
|
|
};
|
|
|
|
void referenceInitializeLocal() {
|
|
const MyStruct &myStruct(5);
|
|
myStruct.method(); // no-warning
|
|
}
|
|
|
|
void referenceInitializeMultipleLocals() {
|
|
const MyStruct &myStruct1(5), myStruct2(5), &myStruct3(5);
|
|
myStruct1.method(); // no-warning
|
|
myStruct2.method(); // no-warning
|
|
myStruct3.method(); // no-warning
|
|
}
|
|
|
|
void referenceInitializeLocalWithCleanup() {
|
|
const MyStruct &myStruct(OtherStruct(5));
|
|
myStruct.method(); // no-warning
|
|
}
|
|
};
|
|
|
|
namespace PR31592 {
|
|
struct C {
|
|
C() : f("}") { } // no-crash
|
|
const char(&f)[2];
|
|
};
|
|
}
|
|
|
|
namespace CXX_initializer_lists {
|
|
struct C {
|
|
C(std::initializer_list<int *> list);
|
|
};
|
|
void testPointerEscapeIntoLists() {
|
|
C empty{}; // no-crash
|
|
|
|
// Do not warn that 'x' leaks. It might have been deleted by
|
|
// the destructor of 'c'.
|
|
int *x = new int;
|
|
C c{x}; // no-warning
|
|
}
|
|
|
|
void testPassListsWithExplicitConstructors() {
|
|
(void)(std::initializer_list<int>){12}; // no-crash
|
|
}
|
|
}
|
|
|
|
namespace CXX17_aggregate_construction {
|
|
struct A {
|
|
A();
|
|
};
|
|
|
|
struct B: public A {
|
|
};
|
|
|
|
struct C: public B {
|
|
};
|
|
|
|
struct D: public virtual A {
|
|
};
|
|
|
|
// In C++17, classes B and C are aggregates, so they will be constructed
|
|
// without actually calling their trivial constructor. Used to crash.
|
|
void foo() {
|
|
B b = {}; // no-crash
|
|
const B &bl = {}; // no-crash
|
|
B &&br = {}; // no-crash
|
|
|
|
C c = {}; // no-crash
|
|
const C &cl = {}; // no-crash
|
|
C &&cr = {}; // no-crash
|
|
|
|
D d = {}; // no-crash
|
|
|
|
#if __cplusplus >= 201703L
|
|
C cd = {{}}; // no-crash
|
|
const C &cdl = {{}}; // no-crash
|
|
C &&cdr = {{}}; // no-crash
|
|
|
|
const B &bll = {{}}; // no-crash
|
|
const B &bcl = C({{}}); // no-crash
|
|
B &&bcr = C({{}}); // no-crash
|
|
#endif
|
|
}
|
|
} // namespace CXX17_aggregate_construction
|
|
|
|
namespace CXX17_transparent_init_list_exprs {
|
|
class A {};
|
|
|
|
class B: private A {};
|
|
|
|
B boo();
|
|
void foo1() {
|
|
B b { boo() }; // no-crash
|
|
}
|
|
|
|
class C: virtual public A {};
|
|
|
|
C coo();
|
|
void foo2() {
|
|
C c { coo() }; // no-crash
|
|
}
|
|
|
|
B foo_recursive() {
|
|
B b { foo_recursive() };
|
|
}
|
|
} // namespace CXX17_transparent_init_list_exprs
|
|
|
|
namespace skip_vbase_initializer_side_effects {
|
|
int glob;
|
|
struct S {
|
|
S() { ++glob; }
|
|
};
|
|
|
|
struct A {
|
|
A() {}
|
|
A(S s) {}
|
|
};
|
|
|
|
struct B : virtual A {
|
|
B() : A(S()) {}
|
|
};
|
|
|
|
struct C : B {
|
|
C() {}
|
|
};
|
|
|
|
void foo() {
|
|
glob = 0;
|
|
B b;
|
|
clang_analyzer_eval(glob == 1); // expected-warning{{TRUE}}
|
|
C c; // no-crash
|
|
clang_analyzer_eval(glob == 1); // expected-warning{{TRUE}}
|
|
}
|
|
} // namespace skip_vbase_initializer_side_effects
|
|
|
|
namespace dont_skip_vbase_initializers_in_most_derived_class {
|
|
struct A {
|
|
static int a;
|
|
A() { a = 0; }
|
|
A(int x) { a = x; }
|
|
};
|
|
|
|
struct B {
|
|
static int b;
|
|
B() { b = 0; }
|
|
B(int y) { b = y; }
|
|
};
|
|
|
|
struct C : virtual A {
|
|
C() : A(1) {}
|
|
};
|
|
struct D : C, virtual B {
|
|
D() : B(2) {}
|
|
};
|
|
|
|
void testD() {
|
|
D d;
|
|
clang_analyzer_eval(A::a == 0); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(B::b == 2); // expected-warning{{TRUE}}
|
|
}
|
|
|
|
struct E : virtual B, C {
|
|
E() : B(2) {}
|
|
};
|
|
|
|
void testE() {
|
|
E e;
|
|
clang_analyzer_eval(A::a == 0); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(B::b == 2); // expected-warning{{TRUE}}
|
|
}
|
|
|
|
struct F : virtual A, virtual B {
|
|
F() : A(1) {}
|
|
};
|
|
struct G : F {
|
|
G(): B(2) {}
|
|
};
|
|
|
|
void testG() {
|
|
G g;
|
|
clang_analyzer_eval(A::a == 0); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(B::b == 2); // expected-warning{{TRUE}}
|
|
}
|
|
|
|
struct H : virtual B, virtual A {
|
|
H(): A(1) {}
|
|
};
|
|
struct I : H {
|
|
I(): B(2) {}
|
|
};
|
|
|
|
void testI() {
|
|
I i;
|
|
clang_analyzer_eval(A::a == 0); // expected-warning{{TRUE}}
|
|
clang_analyzer_eval(B::b == 2); // expected-warning{{TRUE}}
|
|
}
|
|
} // namespace dont_skip_vbase_initializers_in_most_derived_class
|