forked from OSchip/llvm-project
834 lines
19 KiB
C++
834 lines
19 KiB
C++
// RUN: %clang_analyze_cc1 -analyzer-checker=core,optin.cplusplus.UninitializedObject \
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// RUN: -analyzer-config optin.cplusplus.UninitializedObject:Pedantic=true -DPEDANTIC \
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// RUN: -analyzer-config optin.cplusplus.UninitializedObject:CheckPointeeInitialization=true \
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// RUN: -std=c++11 -verify %s
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//===----------------------------------------------------------------------===//
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// Non-polymorphic inheritance tests
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//===----------------------------------------------------------------------===//
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class NonPolymorphicLeft1 {
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int x;
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protected:
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int y;
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public:
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NonPolymorphicLeft1() = default;
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NonPolymorphicLeft1(int) : x(1) {}
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};
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class NonPolymorphicInheritanceTest1 : public NonPolymorphicLeft1 {
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int z;
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public:
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NonPolymorphicInheritanceTest1()
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: NonPolymorphicLeft1(int{}) {
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y = 2;
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z = 3;
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// All good!
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}
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};
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void fNonPolymorphicInheritanceTest1() {
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NonPolymorphicInheritanceTest1();
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}
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class NonPolymorphicBaseClass2 {
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int x; // expected-note{{uninitialized field 'this->NonPolymorphicBaseClass2::x'}}
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protected:
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int y;
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public:
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NonPolymorphicBaseClass2() = default;
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NonPolymorphicBaseClass2(int) : x(4) {}
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};
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class NonPolymorphicInheritanceTest2 : public NonPolymorphicBaseClass2 {
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int z;
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public:
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NonPolymorphicInheritanceTest2() {
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y = 5;
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z = 6; // expected-warning{{1 uninitialized field}}
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}
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};
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void fNonPolymorphicInheritanceTest2() {
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NonPolymorphicInheritanceTest2();
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}
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class NonPolymorphicBaseClass3 {
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int x;
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protected:
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int y; // expected-note{{uninitialized field 'this->NonPolymorphicBaseClass3::y'}}
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public:
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NonPolymorphicBaseClass3() = default;
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NonPolymorphicBaseClass3(int) : x(7) {}
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};
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class NonPolymorphicInheritanceTest3 : public NonPolymorphicBaseClass3 {
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int z;
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public:
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NonPolymorphicInheritanceTest3()
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: NonPolymorphicBaseClass3(int{}) {
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z = 8; // expected-warning{{1 uninitialized field}}
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}
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};
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void fNonPolymorphicInheritanceTest3() {
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NonPolymorphicInheritanceTest3();
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}
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class NonPolymorphicBaseClass4 {
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int x;
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protected:
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int y;
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public:
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NonPolymorphicBaseClass4() = default;
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NonPolymorphicBaseClass4(int) : x(9) {}
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};
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class NonPolymorphicInheritanceTest4 : public NonPolymorphicBaseClass4 {
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int z; // expected-note{{uninitialized field 'this->z'}}
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public:
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NonPolymorphicInheritanceTest4()
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: NonPolymorphicBaseClass4(int{}) {
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y = 10; // expected-warning{{1 uninitialized field}}
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}
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};
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void fNonPolymorphicInheritanceTest4() {
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NonPolymorphicInheritanceTest4();
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}
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//===----------------------------------------------------------------------===//
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// Polymorphic inheritance tests
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//===----------------------------------------------------------------------===//
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class PolymorphicLeft1 {
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int x;
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protected:
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int y;
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public:
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virtual ~PolymorphicLeft1() = default;
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PolymorphicLeft1() = default;
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PolymorphicLeft1(int) : x(11) {}
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};
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class PolymorphicInheritanceTest1 : public PolymorphicLeft1 {
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int z;
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public:
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PolymorphicInheritanceTest1()
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: PolymorphicLeft1(int{}) {
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y = 12;
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z = 13;
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// All good!
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}
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};
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void fPolymorphicInheritanceTest1() {
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PolymorphicInheritanceTest1();
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}
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class PolymorphicRight1 {
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int x; // expected-note{{uninitialized field 'this->PolymorphicRight1::x'}}
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protected:
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int y;
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public:
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virtual ~PolymorphicRight1() = default;
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PolymorphicRight1() = default;
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PolymorphicRight1(int) : x(14) {}
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};
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class PolymorphicInheritanceTest2 : public PolymorphicRight1 {
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int z;
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public:
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PolymorphicInheritanceTest2() {
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y = 15;
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z = 16; // expected-warning{{1 uninitialized field}}
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}
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};
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void fPolymorphicInheritanceTest2() {
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PolymorphicInheritanceTest2();
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}
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class PolymorphicBaseClass3 {
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int x;
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protected:
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int y; // expected-note{{uninitialized field 'this->PolymorphicBaseClass3::y'}}
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public:
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virtual ~PolymorphicBaseClass3() = default;
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PolymorphicBaseClass3() = default;
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PolymorphicBaseClass3(int) : x(17) {}
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};
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class PolymorphicInheritanceTest3 : public PolymorphicBaseClass3 {
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int z;
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public:
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PolymorphicInheritanceTest3()
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: PolymorphicBaseClass3(int{}) {
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z = 18; // expected-warning{{1 uninitialized field}}
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}
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};
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void fPolymorphicInheritanceTest3() {
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PolymorphicInheritanceTest3();
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}
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class PolymorphicBaseClass4 {
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int x;
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protected:
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int y;
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public:
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virtual ~PolymorphicBaseClass4() = default;
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PolymorphicBaseClass4() = default;
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PolymorphicBaseClass4(int) : x(19) {}
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};
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class PolymorphicInheritanceTest4 : public PolymorphicBaseClass4 {
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int z; // expected-note{{uninitialized field 'this->z'}}
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public:
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PolymorphicInheritanceTest4()
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: PolymorphicBaseClass4(int{}) {
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y = 20; // expected-warning{{1 uninitialized field}}
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}
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};
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void fPolymorphicInheritanceTest4() {
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PolymorphicInheritanceTest4();
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}
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//===----------------------------------------------------------------------===//
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// Virtual inheritance tests
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//===----------------------------------------------------------------------===//
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class VirtualPolymorphicLeft1 {
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int x;
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protected:
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int y;
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public:
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virtual ~VirtualPolymorphicLeft1() = default;
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VirtualPolymorphicLeft1() = default;
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VirtualPolymorphicLeft1(int) : x(21) {}
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};
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class VirtualInheritanceTest1 : virtual public VirtualPolymorphicLeft1 {
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int z;
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public:
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VirtualInheritanceTest1()
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: VirtualPolymorphicLeft1(int()) {
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y = 22;
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z = 23;
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// All good!
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}
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};
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void fVirtualInheritanceTest1() {
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VirtualInheritanceTest1();
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}
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class VirtualPolymorphicRight1 {
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int x; // expected-note{{uninitialized field 'this->VirtualPolymorphicRight1::x'}}
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protected:
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int y;
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public:
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virtual ~VirtualPolymorphicRight1() = default;
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VirtualPolymorphicRight1() = default;
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VirtualPolymorphicRight1(int) : x(24) {}
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};
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class VirtualInheritanceTest2 : virtual public VirtualPolymorphicRight1 {
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int z;
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public:
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VirtualInheritanceTest2() {
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y = 25;
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z = 26; // expected-warning{{1 uninitialized field}}
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}
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};
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void fVirtualInheritanceTest2() {
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VirtualInheritanceTest2();
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}
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class VirtualPolymorphicBaseClass3 {
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int x;
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protected:
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int y; // expected-note{{uninitialized field 'this->VirtualPolymorphicBaseClass3::y'}}
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public:
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virtual ~VirtualPolymorphicBaseClass3() = default;
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VirtualPolymorphicBaseClass3() = default;
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VirtualPolymorphicBaseClass3(int) : x(27) {}
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};
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class VirtualInheritanceTest3 : virtual public VirtualPolymorphicBaseClass3 {
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int z;
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public:
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VirtualInheritanceTest3()
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: VirtualPolymorphicBaseClass3(int{}) {
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z = 28; // expected-warning{{1 uninitialized field}}
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}
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};
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void fVirtualInheritanceTest3() {
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VirtualInheritanceTest3();
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}
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//===----------------------------------------------------------------------===//
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// Multiple inheritance tests
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//===----------------------------------------------------------------------===//
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/*
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Left Right
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\ /
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\ /
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\ /
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MultipleInheritanceTest
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*/
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struct Left1 {
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int x;
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Left1() = default;
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Left1(int) : x(29) {}
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};
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struct Right1 {
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int y;
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Right1() = default;
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Right1(int) : y(30) {}
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};
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class MultipleInheritanceTest1 : public Left1, public Right1 {
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int z;
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public:
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MultipleInheritanceTest1()
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: Left1(int{}),
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Right1(char{}) {
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z = 31;
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// All good!
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}
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MultipleInheritanceTest1(int)
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: Left1(int{}) {
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y = 32;
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z = 33;
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// All good!
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}
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MultipleInheritanceTest1(int, int)
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: Right1(char{}) {
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x = 34;
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z = 35;
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// All good!
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}
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};
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void fMultipleInheritanceTest1() {
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MultipleInheritanceTest1();
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MultipleInheritanceTest1(int());
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MultipleInheritanceTest1(int(), int());
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}
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struct Left2 {
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int x;
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Left2() = default;
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Left2(int) : x(36) {}
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};
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struct Right2 {
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int y; // expected-note{{uninitialized field 'this->Right2::y'}}
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Right2() = default;
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Right2(int) : y(37) {}
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};
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class MultipleInheritanceTest2 : public Left2, public Right2 {
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int z;
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public:
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MultipleInheritanceTest2()
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: Left2(int{}) {
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z = 38; // expected-warning{{1 uninitialized field}}
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}
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};
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void fMultipleInheritanceTest2() {
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MultipleInheritanceTest2();
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}
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struct Left3 {
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int x; // expected-note{{uninitialized field 'this->Left3::x'}}
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Left3() = default;
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Left3(int) : x(39) {}
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};
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struct Right3 {
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int y;
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Right3() = default;
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Right3(int) : y(40) {}
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};
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class MultipleInheritanceTest3 : public Left3, public Right3 {
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int z;
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public:
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MultipleInheritanceTest3()
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: Right3(char{}) {
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z = 41; // expected-warning{{1 uninitialized field}}
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}
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};
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void fMultipleInheritanceTest3() {
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MultipleInheritanceTest3();
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}
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struct Left4 {
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int x;
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Left4() = default;
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Left4(int) : x(42) {}
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};
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struct Right4 {
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int y;
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Right4() = default;
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Right4(int) : y(43) {}
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};
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class MultipleInheritanceTest4 : public Left4, public Right4 {
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int z; // expected-note{{uninitialized field 'this->z'}}
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public:
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MultipleInheritanceTest4()
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: Left4(int{}),
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Right4(char{}) { // expected-warning{{1 uninitialized field}}
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}
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};
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void fMultipleInheritanceTest4() {
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MultipleInheritanceTest4();
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}
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struct Left5 {
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int x;
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Left5() = default;
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Left5(int) : x(44) {}
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};
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struct Right5 {
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int y; // expected-note{{uninitialized field 'this->Right5::y'}}
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Right5() = default;
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Right5(int) : y(45) {}
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};
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class MultipleInheritanceTest5 : public Left5, public Right5 {
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int z; // expected-note{{uninitialized field 'this->z'}}
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public:
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MultipleInheritanceTest5() // expected-warning{{2 uninitialized fields}}
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: Left5(int{}) {
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}
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};
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void fMultipleInheritanceTest5() {
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MultipleInheritanceTest5();
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}
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//===----------------------------------------------------------------------===//
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// Non-virtual diamond inheritance tests
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//===----------------------------------------------------------------------===//
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/*
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NonVirtualBase NonVirtualBase
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First Second
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\ /
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\ /
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\ /
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NonVirtualDiamondInheritanceTest
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*/
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struct NonVirtualBase1 {
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int x;
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NonVirtualBase1() = default;
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NonVirtualBase1(int) : x(46) {}
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};
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struct First1 : public NonVirtualBase1 {
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First1() = default;
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First1(int) : NonVirtualBase1(int{}) {}
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};
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struct Second1 : public NonVirtualBase1 {
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Second1() = default;
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Second1(int) : NonVirtualBase1(int{}) {}
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};
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class NonVirtualDiamondInheritanceTest1 : public First1, public Second1 {
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int z;
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public:
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NonVirtualDiamondInheritanceTest1()
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: First1(int{}),
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Second1(int{}) {
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z = 47;
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// All good!
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}
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NonVirtualDiamondInheritanceTest1(int)
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: First1(int{}) {
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Second1::x = 48;
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z = 49;
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// All good!
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}
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NonVirtualDiamondInheritanceTest1(int, int)
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: Second1(int{}) {
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First1::x = 50;
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z = 51;
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// All good!
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}
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};
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void fNonVirtualDiamondInheritanceTest1() {
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NonVirtualDiamondInheritanceTest1();
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NonVirtualDiamondInheritanceTest1(int());
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NonVirtualDiamondInheritanceTest1(int(), int());
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}
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struct NonVirtualBase2 {
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int x; // expected-note{{uninitialized field 'this->NonVirtualBase2::x'}}
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NonVirtualBase2() = default;
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NonVirtualBase2(int) : x(52) {}
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};
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struct First2 : public NonVirtualBase2 {
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First2() = default;
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First2(int) : NonVirtualBase2(int{}) {}
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};
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struct Second2 : public NonVirtualBase2 {
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Second2() = default;
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Second2(int) : NonVirtualBase2(int{}) {}
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};
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class NonVirtualDiamondInheritanceTest2 : public First2, public Second2 {
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int z;
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public:
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NonVirtualDiamondInheritanceTest2()
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: First2(int{}) {
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z = 53; // expected-warning{{1 uninitialized field}}
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}
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};
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void fNonVirtualDiamondInheritanceTest2() {
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NonVirtualDiamondInheritanceTest2();
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}
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struct NonVirtualBase3 {
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int x; // expected-note{{uninitialized field 'this->NonVirtualBase3::x'}}
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NonVirtualBase3() = default;
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NonVirtualBase3(int) : x(54) {}
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};
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struct First3 : public NonVirtualBase3 {
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First3() = default;
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First3(int) : NonVirtualBase3(int{}) {}
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};
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struct Second3 : public NonVirtualBase3 {
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Second3() = default;
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Second3(int) : NonVirtualBase3(int{}) {}
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};
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class NonVirtualDiamondInheritanceTest3 : public First3, public Second3 {
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int z;
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public:
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NonVirtualDiamondInheritanceTest3()
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: Second3(int{}) {
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z = 55; // expected-warning{{1 uninitialized field}}
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}
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};
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void fNonVirtualDiamondInheritanceTest3() {
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NonVirtualDiamondInheritanceTest3();
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}
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struct NonVirtualBase4 {
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int x; // expected-note{{uninitialized field 'this->NonVirtualBase4::x'}}
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// expected-note@-1{{uninitialized field 'this->NonVirtualBase4::x'}}
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NonVirtualBase4() = default;
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NonVirtualBase4(int) : x(56) {}
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};
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struct First4 : public NonVirtualBase4 {
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First4() = default;
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First4(int) : NonVirtualBase4(int{}) {}
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};
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struct Second4 : public NonVirtualBase4 {
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Second4() = default;
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Second4(int) : NonVirtualBase4(int{}) {}
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};
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class NonVirtualDiamondInheritanceTest4 : public First4, public Second4 {
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int z;
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public:
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NonVirtualDiamondInheritanceTest4() {
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z = 57; // expected-warning{{2 uninitialized fields}}
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}
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};
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void fNonVirtualDiamondInheritanceTest4() {
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NonVirtualDiamondInheritanceTest4();
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}
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struct NonVirtualBase5 {
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int x;
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NonVirtualBase5() = default;
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NonVirtualBase5(int) : x(58) {}
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};
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struct First5 : public NonVirtualBase5 {
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First5() = default;
|
|
First5(int) : NonVirtualBase5(int{}) {}
|
|
};
|
|
struct Second5 : public NonVirtualBase5 {
|
|
Second5() = default;
|
|
Second5(int) : NonVirtualBase5(int{}) {}
|
|
};
|
|
|
|
class NonVirtualDiamondInheritanceTest5 : public First5, public Second5 {
|
|
int z; // expected-note{{uninitialized field 'this->z'}}
|
|
|
|
public:
|
|
NonVirtualDiamondInheritanceTest5()
|
|
: First5(int{}),
|
|
Second5(int{}) { // expected-warning{{1 uninitialized field}}
|
|
}
|
|
};
|
|
|
|
void fNonVirtualDiamondInheritanceTest5() {
|
|
NonVirtualDiamondInheritanceTest5();
|
|
}
|
|
|
|
struct NonVirtualBase6 {
|
|
int x; // expected-note{{uninitialized field 'this->NonVirtualBase6::x'}}
|
|
NonVirtualBase6() = default;
|
|
NonVirtualBase6(int) : x(59) {}
|
|
};
|
|
struct First6 : public NonVirtualBase6 {
|
|
First6() = default;
|
|
First6(int) : NonVirtualBase6(int{}) {}
|
|
};
|
|
struct Second6 : public NonVirtualBase6 {
|
|
Second6() = default;
|
|
Second6(int) : NonVirtualBase6(int{}) {}
|
|
};
|
|
|
|
class NonVirtualDiamondInheritanceTest6 : public First6, public Second6 {
|
|
int z; // expected-note{{uninitialized field 'this->z'}}
|
|
|
|
public:
|
|
NonVirtualDiamondInheritanceTest6() // expected-warning{{2 uninitialized fields}}
|
|
: First6(int{}) {
|
|
// 'z' and 'Second::x' unintialized
|
|
}
|
|
};
|
|
|
|
void fNonVirtualDiamondInheritanceTest6() {
|
|
NonVirtualDiamondInheritanceTest6();
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Virtual diamond inheritance tests
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/*
|
|
VirtualBase
|
|
/ \
|
|
/ \
|
|
/ \
|
|
VirtualFirst VirtualSecond
|
|
\ /
|
|
\ /
|
|
\ /
|
|
VirtualDiamondInheritanceTest
|
|
*/
|
|
|
|
struct VirtualBase1 {
|
|
int x;
|
|
VirtualBase1() = default;
|
|
VirtualBase1(int) : x(60) {}
|
|
};
|
|
struct VirtualFirst1 : virtual public VirtualBase1 {
|
|
VirtualFirst1() = default;
|
|
VirtualFirst1(int) : VirtualBase1(int{}) {}
|
|
VirtualFirst1(int, int) { x = 61; }
|
|
};
|
|
struct VirtualSecond1 : virtual public VirtualBase1 {
|
|
VirtualSecond1() = default;
|
|
VirtualSecond1(int) : VirtualBase1(int{}) {}
|
|
VirtualSecond1(int, int) { x = 62; }
|
|
};
|
|
|
|
class VirtualDiamondInheritanceTest1 : public VirtualFirst1, public VirtualSecond1 {
|
|
|
|
public:
|
|
VirtualDiamondInheritanceTest1() {
|
|
x = 0;
|
|
// All good!
|
|
}
|
|
|
|
VirtualDiamondInheritanceTest1(int)
|
|
: VirtualFirst1(int{}, int{}),
|
|
VirtualSecond1(int{}, int{}) {
|
|
// All good!
|
|
}
|
|
|
|
VirtualDiamondInheritanceTest1(int, int)
|
|
: VirtualFirst1(int{}, int{}) {
|
|
// All good!
|
|
}
|
|
};
|
|
|
|
void fVirtualDiamondInheritanceTest1() {
|
|
VirtualDiamondInheritanceTest1();
|
|
VirtualDiamondInheritanceTest1(int());
|
|
VirtualDiamondInheritanceTest1(int(), int());
|
|
}
|
|
|
|
struct VirtualBase2 {
|
|
int x; // expected-note{{uninitialized field 'this->VirtualBase2::x'}}
|
|
VirtualBase2() = default;
|
|
VirtualBase2(int) : x(63) {}
|
|
};
|
|
struct VirtualFirst2 : virtual public VirtualBase2 {
|
|
VirtualFirst2() = default;
|
|
VirtualFirst2(int) : VirtualBase2(int{}) {}
|
|
VirtualFirst2(int, int) { x = 64; }
|
|
};
|
|
struct VirtualSecond2 : virtual public VirtualBase2 {
|
|
VirtualSecond2() = default;
|
|
VirtualSecond2(int) : VirtualBase2(int{}) {}
|
|
VirtualSecond2(int, int) { x = 65; }
|
|
};
|
|
|
|
class VirtualDiamondInheritanceTest2 : public VirtualFirst2, public VirtualSecond2 {
|
|
|
|
public:
|
|
VirtualDiamondInheritanceTest2() // expected-warning{{1 uninitialized field}}
|
|
: VirtualFirst2(int{}) {
|
|
// From the N4659 C++ Standard Working Draft:
|
|
//
|
|
// (15.6.2.7)
|
|
// [...] A 'mem-initializer' where the 'mem-initializer-id' denotes a
|
|
// virtual base class is ignored during execution of a constructor of any
|
|
// class that is not the most derived class.
|
|
//
|
|
// This means that Left1::x will not be initialized, because in both
|
|
// VirtualFirst::VirtualFirst(int) and VirtualSecond::VirtualSecond(int)
|
|
// the constructor delegation to Left1::Left1(int) will be
|
|
// ignored.
|
|
}
|
|
};
|
|
|
|
void fVirtualDiamondInheritanceTest2() {
|
|
VirtualDiamondInheritanceTest2();
|
|
}
|
|
|
|
struct VirtualBase3 {
|
|
int x; // expected-note{{uninitialized field 'this->VirtualBase3::x'}}
|
|
VirtualBase3() = default;
|
|
VirtualBase3(int) : x(66) {}
|
|
};
|
|
struct VirtualFirst3 : virtual public VirtualBase3 {
|
|
VirtualFirst3() = default;
|
|
VirtualFirst3(int) : VirtualBase3(int{}) {}
|
|
VirtualFirst3(int, int) { x = 67; }
|
|
};
|
|
struct VirtualSecond3 : virtual public VirtualBase3 {
|
|
VirtualSecond3() = default;
|
|
VirtualSecond3(int) : VirtualBase3(int{}) {}
|
|
VirtualSecond3(int, int) { x = 68; }
|
|
};
|
|
|
|
class VirtualDiamondInheritanceTest3 : public VirtualFirst3, public VirtualSecond3 {
|
|
|
|
public:
|
|
VirtualDiamondInheritanceTest3() // expected-warning{{1 uninitialized field}}
|
|
: VirtualFirst3(int{}) {}
|
|
};
|
|
|
|
void fVirtualDiamondInheritanceTest3() {
|
|
VirtualDiamondInheritanceTest3();
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Dynamic type test.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
struct DynTBase1 {};
|
|
struct DynTDerived1 : DynTBase1 {
|
|
int y; // expected-note{{uninitialized field 'static_cast<struct DynTDerived1 *>(this->bptr)->y'}}
|
|
};
|
|
|
|
struct DynamicTypeTest1 {
|
|
DynTBase1 *bptr;
|
|
int i = 0;
|
|
|
|
DynamicTypeTest1(DynTBase1 *bptr) : bptr(bptr) {} // expected-warning{{1 uninitialized field}}
|
|
};
|
|
|
|
void fDynamicTypeTest1() {
|
|
DynTDerived1 d;
|
|
DynamicTypeTest1 t(&d);
|
|
};
|
|
|
|
struct DynTBase2 {
|
|
int x; // expected-note{{uninitialized field 'static_cast<struct DynTDerived2 *>(this->bptr)->DynTBase2::x'}}
|
|
};
|
|
struct DynTDerived2 : DynTBase2 {
|
|
int y; // expected-note{{uninitialized field 'static_cast<struct DynTDerived2 *>(this->bptr)->y'}}
|
|
};
|
|
|
|
struct DynamicTypeTest2 {
|
|
DynTBase2 *bptr;
|
|
int i = 0;
|
|
|
|
DynamicTypeTest2(DynTBase2 *bptr) : bptr(bptr) {} // expected-warning{{2 uninitialized fields}}
|
|
};
|
|
|
|
void fDynamicTypeTest2() {
|
|
DynTDerived2 d;
|
|
DynamicTypeTest2 t(&d);
|
|
}
|
|
|
|
struct SymbolicSuperRegionBase {
|
|
SymbolicSuperRegionBase() {}
|
|
};
|
|
|
|
struct SymbolicSuperRegionDerived : SymbolicSuperRegionBase {
|
|
SymbolicSuperRegionBase *bptr; // no-crash
|
|
SymbolicSuperRegionDerived(SymbolicSuperRegionBase *bptr) : bptr(bptr) {}
|
|
};
|
|
|
|
SymbolicSuperRegionDerived *getSymbolicRegion();
|
|
|
|
void fSymbolicSuperRegionTest() {
|
|
SymbolicSuperRegionDerived test(getSymbolicRegion());
|
|
}
|