// RUN: %clang_analyze_cc1 -analyzer-checker=debug.DumpCFG -triple x86_64-apple-darwin12 -analyzer-config cfg-temporary-dtors=true -std=c++11 -w %s > %t 2>&1 // RUN: FileCheck --input-file=%t %s class C { public: C(); C(C *); C(int, int); static C get(); operator bool() const; }; typedef __typeof(sizeof(int)) size_t; void *operator new(size_t size, void *placement); namespace operator_new { // CHECK: void operatorNewWithConstructor() // CHECK: 1: CFGNewAllocator(C *) // CHECK-NEXT: 2: (CXXConstructExpr, [B1.3], class C) // CHECK-NEXT: 3: new C([B1.2]) void operatorNewWithConstructor() { new C(); } // CHECK: void operatorNewWithConstructorWithOperatorNewWithContstructor() // CHECK: 1: CFGNewAllocator(C *) // CHECK-NEXT: 2: CFGNewAllocator(C *) // CHECK-NEXT: 3: (CXXConstructExpr, [B1.4], class C) // CHECK-NEXT: 4: new C([B1.3]) // CHECK-NEXT: 5: [B1.4] (CXXConstructExpr, [B1.6], class C) // CHECK-NEXT: 6: new C([B1.5]) void operatorNewWithConstructorWithOperatorNewWithContstructor() { new C(new C()); } // CHECK: void operatorPlacementNewWithConstructorWithinPlacementArgument() // CHECK: 1: CFGNewAllocator(C *) // CHECK-NEXT: 2: (CXXConstructExpr, [B1.3], class C) // CHECK-NEXT: 3: new C([B1.2]) // CHECK-NEXT: 4: [B1.3] (ImplicitCastExpr, BitCast, void *) // CHECK-NEXT: 5: CFGNewAllocator(C *) // CHECK-NEXT: 6: (CXXConstructExpr, [B1.7], class C) // CHECK-NEXT: 7: new ([B1.4]) C([B1.6]) void operatorPlacementNewWithConstructorWithinPlacementArgument() { new (new C()) C(); } } // namespace operator_new namespace decl_stmt { // CHECK: void simpleVariable() // CHECK: 1: (CXXConstructExpr, [B1.2], class C) // CHECK-NEXT: 2: C c; void simpleVariable() { C c; } // CHECK: void simpleVariableWithBraces() // CHECK: 1: {} (CXXConstructExpr, [B1.2], class C) // CHECK-NEXT: 2: C c{}; void simpleVariableWithBraces() { C c{}; } // CHECK: void simpleVariableWithConstructorArgument() // CHECK: 1: 0 // CHECK-NEXT: 2: [B1.1] (ImplicitCastExpr, NullToPointer, class C *) // CHECK-NEXT: 3: [B1.2] (CXXConstructExpr, [B1.4], class C) // CHECK-NEXT: 4: C c(0); void simpleVariableWithConstructorArgument() { C c(0); } // CHECK: void simpleVariableWithOperatorNewInConstructorArgument() // CHECK: 1: CFGNewAllocator(C *) // CHECK-NEXT: 2: (CXXConstructExpr, [B1.3], class C) // CHECK-NEXT: 3: new C([B1.2]) // CHECK-NEXT: 4: [B1.3] (CXXConstructExpr, [B1.5], class C) // CHECK-NEXT: 5: C c(new C()); void simpleVariableWithOperatorNewInConstructorArgument() { C c(new C()); } // CHECK: void simpleVariableWithOperatorNewInBraces() // CHECK: 1: CFGNewAllocator(C *) // CHECK-NEXT: 2: (CXXConstructExpr, [B1.3], class C) // CHECK-NEXT: 3: new C([B1.2]) // CHECK-NEXT: 4: {[B1.3]} (CXXConstructExpr, [B1.5], class C) // CHECK-NEXT: 5: C c{new C()}; void simpleVariableWithOperatorNewInBraces() { C c{new C()}; } // CHECK: void simpleVariableInitializedByValue() // CHECK: 1: C::get // CHECK-NEXT: 2: [B1.1] (ImplicitCastExpr, FunctionToPointerDecay, class C (*)(void)) // CHECK-NEXT: 3: [B1.2]() // CHECK-NEXT: 4: [B1.3] // CHECK-NEXT: 5: [B1.4] (CXXConstructExpr, [B1.6], class C) // CHECK-NEXT: 6: C c = C::get(); void simpleVariableInitializedByValue() { C c = C::get(); } // CHECK: void simpleVariableWithTernaryOperator(bool coin) // CHECK: [B1] // CHECK-NEXT: 1: [B4.2] ? [B2.5] : [B3.6] // CHECK-NEXT: 2: [B1.1] // CHECK-NEXT: 3: [B1.2] (CXXConstructExpr, [B1.4], class C) // CHECK-NEXT: 4: C c = coin ? C::get() : C(0); // CHECK: [B2] // CHECK-NEXT: 1: C::get // CHECK-NEXT: 2: [B2.1] (ImplicitCastExpr, FunctionToPointerDecay, class C (*)(void)) // CHECK-NEXT: 3: [B2.2]() // CHECK-NEXT: 4: [B2.3] // CHECK-NEXT: 5: [B2.4] (CXXConstructExpr, [B1.2], class C) // CHECK: [B3] // CHECK-NEXT: 1: 0 // CHECK-NEXT: 2: [B3.1] (ImplicitCastExpr, NullToPointer, class C *) // CHECK-NEXT: 3: [B3.2] (CXXConstructExpr, [B3.5], class C) // CHECK-NEXT: 4: C([B3.3]) (CXXFunctionalCastExpr, ConstructorConversion, class C) // CHECK-NEXT: 5: [B3.4] // CHECK-NEXT: 6: [B3.5] (CXXConstructExpr, [B1.2], class C) // CHECK: [B4] // CHECK-NEXT: 1: coin // CHECK-NEXT: 2: [B4.1] (ImplicitCastExpr, LValueToRValue, _Bool) // CHECK-NEXT: T: [B4.2] ? ... : ... void simpleVariableWithTernaryOperator(bool coin) { C c = coin ? C::get() : C(0); } // CHECK: void simpleVariableWithElidableCopy() // CHECK: 1: 0 // CHECK-NEXT: 2: [B1.1] (ImplicitCastExpr, NullToPointer, class C *) // CHECK-NEXT: 3: [B1.2] (CXXConstructExpr, [B1.5], class C) // CHECK-NEXT: 4: C([B1.3]) (CXXFunctionalCastExpr, ConstructorConversion, class C) // CHECK-NEXT: 5: [B1.4] // CHECK-NEXT: 6: [B1.5] (CXXConstructExpr, [B1.7], class C) // CHECK-NEXT: 7: C c = C(0); void simpleVariableWithElidableCopy() { C c = C(0); } // CHECK: void referenceVariableWithConstructor() // CHECK: 1: 0 // CHECK-NEXT: 2: [B1.1] (ImplicitCastExpr, NullToPointer, class C *) // CHECK-NEXT: 3: [B1.2] (CXXConstructExpr, [B1.4], const class C) // CHECK-NEXT: 4: [B1.3] // CHECK-NEXT: 5: const C &c(0); void referenceVariableWithConstructor() { const C &c(0); } // CHECK: void referenceVariableWithInitializer() // CHECK: 1: C() (CXXConstructExpr, [B1.3], class C) // CHECK-NEXT: 2: [B1.1] (ImplicitCastExpr, NoOp, const class C) // CHECK-NEXT: 3: [B1.2] // CHECK-NEXT: 4: const C &c = C(); void referenceVariableWithInitializer() { const C &c = C(); } // CHECK: void referenceVariableWithTernaryOperator(bool coin) // CHECK: [B1] // CHECK-NEXT: 1: [B4.2] ? [B2.5] : [B3.6] // CHECK-NEXT: 2: [B1.1] (ImplicitCastExpr, NoOp, const class C) // CHECK-NEXT: 3: [B1.2] // CHECK-NEXT: 4: const C &c = coin ? C::get() : C(0); // CHECK: [B2] // CHECK-NEXT: 1: C::get // CHECK-NEXT: 2: [B2.1] (ImplicitCastExpr, FunctionToPointerDecay, class C (*)(void)) // CHECK-NEXT: 3: [B2.2]() // CHECK-NEXT: 4: [B2.3] // CHECK-NEXT: 5: [B2.4] (CXXConstructExpr, [B1.3], class C) // CHECK: [B3] // CHECK-NEXT: 1: 0 // CHECK-NEXT: 2: [B3.1] (ImplicitCastExpr, NullToPointer, class C *) // CHECK-NEXT: 3: [B3.2] (CXXConstructExpr, [B3.5], class C) // CHECK-NEXT: 4: C([B3.3]) (CXXFunctionalCastExpr, ConstructorConversion, class C) // CHECK-NEXT: 5: [B3.4] // CHECK-NEXT: 6: [B3.5] (CXXConstructExpr, [B1.3], class C) // CHECK: [B4] // CHECK-NEXT: 1: coin // CHECK-NEXT: 2: [B4.1] (ImplicitCastExpr, LValueToRValue, _Bool) // CHECK-NEXT: T: [B4.2] ? ... : ... void referenceVariableWithTernaryOperator(bool coin) { const C &c = coin ? C::get() : C(0); } } // end namespace decl_stmt namespace ctor_initializers { class D: public C { C c1; public: // CHECK: D() // CHECK: 1: (CXXConstructExpr, C() (Base initializer), class C) // CHECK-NEXT: 2: C([B1.1]) (Base initializer) // CHECK-NEXT: 3: CFGNewAllocator(C *) // CHECK-NEXT: 4: (CXXConstructExpr, [B1.5], class C) // CHECK-NEXT: 5: new C([B1.4]) // CHECK-NEXT: 6: [B1.5] (CXXConstructExpr, c1([B1.5]) (Member initializer), class C) // CHECK-NEXT: 7: c1([B1.6]) (Member initializer) D(): C(), c1(new C()) {} // CHECK: D(int) // CHECK: 1: (CXXConstructExpr, D() (Delegating initializer), class ctor_initializers::D) // CHECK-NEXT: 2: D([B1.1]) (Delegating initializer) D(int): D() {} // CHECK: D(double) // CHECK: 1: C::get // CHECK-NEXT: 2: [B1.1] (ImplicitCastExpr, FunctionToPointerDecay, class C (*)(void)) // CHECK-NEXT: 3: [B1.2]() // CHECK-NEXT: 4: [B1.3] // CHECK-NEXT: 5: [B1.4] (CXXConstructExpr, C([B1.4]) (Base initializer), class C) // CHECK-NEXT: 6: C([B1.5]) (Base initializer) // CHECK-NEXT: 7: CFGNewAllocator(C *) // CHECK-NEXT: 8: C::get // CHECK-NEXT: 9: [B1.8] (ImplicitCastExpr, FunctionToPointerDecay, class C (*)(void)) // CHECK-NEXT: 10: [B1.9]() // CHECK-NEXT: 11: [B1.10] // CHECK-NEXT: 12: [B1.11] (CXXConstructExpr, [B1.13], class C) // CHECK-NEXT: 13: new C([B1.12]) // CHECK-NEXT: 14: [B1.13] (CXXConstructExpr, c1([B1.13]) (Member initializer), class C) // CHECK-NEXT: 15: c1([B1.14]) (Member initializer) D(double): C(C::get()), c1(new C(C::get())) {} }; } // end namespace ctor_initializers namespace return_stmt_without_dtor { // CHECK: C returnVariable() // CHECK: 1: (CXXConstructExpr, [B1.2], class C) // CHECK-NEXT: 2: C c; // CHECK-NEXT: 3: c // CHECK-NEXT: 4: [B1.3] (ImplicitCastExpr, NoOp, class C) // CHECK-NEXT: 5: [B1.4] (CXXConstructExpr, [B1.6], class C) // CHECK-NEXT: 6: return [B1.5]; C returnVariable() { C c; return c; } // CHECK: C returnEmptyBraces() // CHECK: 1: {} (CXXConstructExpr, [B1.2], class C) // CHECK-NEXT: 2: return [B1.1]; C returnEmptyBraces() { return {}; } // CHECK: C returnBracesWithOperatorNew() // CHECK: 1: CFGNewAllocator(C *) // CHECK-NEXT: 2: (CXXConstructExpr, [B1.3], class C) // CHECK-NEXT: 3: new C([B1.2]) // CHECK-NEXT: 4: {[B1.3]} (CXXConstructExpr, [B1.5], class C) // CHECK-NEXT: 5: return [B1.4]; C returnBracesWithOperatorNew() { return {new C()}; } // CHECK: C returnBracesWithMultipleItems() // CHECK: 1: 123 // CHECK-NEXT: 2: 456 // CHECK-NEXT: 3: {[B1.1], [B1.2]} (CXXConstructExpr, [B1.4], class C) // CHECK-NEXT: 4: return [B1.3]; C returnBracesWithMultipleItems() { return {123, 456}; } // CHECK: C returnTemporary() // CHECK: 1: C() (CXXConstructExpr, [B1.2], class C) // CHECK-NEXT: 2: [B1.1] // CHECK-NEXT: 3: [B1.2] (CXXConstructExpr, [B1.4], class C) // CHECK-NEXT: 4: return [B1.3]; C returnTemporary() { return C(); } // CHECK: C returnTemporaryWithArgument() // CHECK: 1: nullptr // CHECK-NEXT: 2: [B1.1] (ImplicitCastExpr, NullToPointer, class C *) // CHECK-NEXT: 3: [B1.2] (CXXConstructExpr, [B1.5], class C) // CHECK-NEXT: 4: C([B1.3]) (CXXFunctionalCastExpr, ConstructorConversion, class C) // CHECK-NEXT: 5: [B1.4] // CHECK-NEXT: 6: [B1.5] (CXXConstructExpr, [B1.7], class C) // CHECK-NEXT: 7: return [B1.6]; C returnTemporaryWithArgument() { return C(nullptr); } // CHECK: C returnTemporaryConstructedByFunction() // CHECK: 1: C::get // CHECK-NEXT: 2: [B1.1] (ImplicitCastExpr, FunctionToPointerDecay, class C (*)(void)) // CHECK-NEXT: 3: [B1.2]() // CHECK-NEXT: 4: [B1.3] // CHECK-NEXT: 5: [B1.4] (CXXConstructExpr, [B1.6], class C) // CHECK-NEXT: 6: return [B1.5]; C returnTemporaryConstructedByFunction() { return C::get(); } // CHECK: C returnChainOfCopies() // CHECK: 1: C::get // CHECK-NEXT: 2: [B1.1] (ImplicitCastExpr, FunctionToPointerDecay, class C (*)(void)) // CHECK-NEXT: 3: [B1.2]() // CHECK-NEXT: 4: [B1.3] // CHECK-NEXT: 5: [B1.4] (CXXConstructExpr, [B1.7], class C) // CHECK-NEXT: 6: C([B1.5]) (CXXFunctionalCastExpr, ConstructorConversion, class C) // CHECK-NEXT: 7: [B1.6] // CHECK-NEXT: 8: [B1.7] (CXXConstructExpr, [B1.9], class C) // CHECK-NEXT: 9: return [B1.8]; C returnChainOfCopies() { return C(C::get()); } } // end namespace return_stmt_without_dtor namespace return_stmt_with_dtor { class D { public: D(); ~D(); }; // CHECK: return_stmt_with_dtor::D returnTemporary() // CHECK: 1: return_stmt_with_dtor::D() (CXXConstructExpr, [B1.2], [B1.4], class return_stmt_with_dtor::D) // CHECK-NEXT: 2: [B1.1] (BindTemporary) // CHECK-NEXT: 3: [B1.2] (ImplicitCastExpr, NoOp, const class return_stmt_with_dtor::D) // CHECK-NEXT: 4: [B1.3] // CHECK-NEXT: 5: [B1.4] (CXXConstructExpr, [B1.7], class return_stmt_with_dtor::D) // CHECK-NEXT: 6: ~return_stmt_with_dtor::D() (Temporary object destructor) // CHECK-NEXT: 7: return [B1.5]; D returnTemporary() { return D(); } } // end namespace return_stmt_with_dtor namespace temporary_object_expr_without_dtors { // TODO: Should provide construction context for the constructor, // even if there is no specific trigger statement here. // CHECK: void simpleTemporary() // CHECK 1: C() (CXXConstructExpr, class C) void simpleTemporary() { C(); } // TODO: Should provide construction context for the constructor, // CHECK: void temporaryInCondition() // CHECK: 1: C() (CXXConstructExpr, class C) // CHECK-NEXT: 2: [B2.1] (ImplicitCastExpr, NoOp, const class C) // CHECK-NEXT: 3: [B2.2].operator bool // CHECK-NEXT: 4: [B2.2] // CHECK-NEXT: 5: [B2.4] (ImplicitCastExpr, UserDefinedConversion, _Bool) // CHECK-NEXT: T: if [B2.5] void temporaryInCondition() { if (C()); } } // end namespace temporary_object_expr_without_dtors namespace temporary_object_expr_with_dtors { class D { public: D(); D(int); ~D(); static D get(); operator bool() const; }; // CHECK: void simpleTemporary() // CHECK: 1: temporary_object_expr_with_dtors::D() (CXXConstructExpr, [B1.2], class temporary_object_expr_with_dtors::D) // CHECK-NEXT: 2: [B1.1] (BindTemporary) // CHECK-NEXT: 3: ~temporary_object_expr_with_dtors::D() (Temporary object destructor) void simpleTemporary() { D(); } // CHECK: void temporaryInCondition() // CHECK: 1: temporary_object_expr_with_dtors::D() (CXXConstructExpr, [B2.2], class temporary_object_expr_with_dtors::D) // CHECK-NEXT: 2: [B2.1] (BindTemporary) // CHECK-NEXT: 3: [B2.2] (ImplicitCastExpr, NoOp, const class temporary_object_expr_with_dtors::D) // CHECK-NEXT: 4: [B2.3].operator bool // CHECK-NEXT: 5: [B2.3] // CHECK-NEXT: 6: [B2.5] (ImplicitCastExpr, UserDefinedConversion, _Bool) // CHECK-NEXT: 7: ~temporary_object_expr_with_dtors::D() (Temporary object destructor) // CHECK-NEXT: T: if [B2.6] void temporaryInCondition() { if (D()); } // CHECK: void referenceVariableWithConstructor() // CHECK: 1: 0 // CHECK-NEXT: 2: [B1.1] (CXXConstructExpr, [B1.3], [B1.4], const class temporary_object_expr_with_dtors::D) // CHECK-NEXT: 3: [B1.2] (BindTemporary) // CHECK-NEXT: 4: [B1.3] // CHECK-NEXT: 5: const temporary_object_expr_with_dtors::D &d(0); // CHECK-NEXT: 6: [B1.5].~D() (Implicit destructor) void referenceVariableWithConstructor() { const D &d(0); } // CHECK: void referenceVariableWithInitializer() // CHECK: 1: temporary_object_expr_with_dtors::D() (CXXConstructExpr, [B1.2], [B1.4], class temporary_object_expr_with_dtors::D) // CHECK-NEXT: 2: [B1.1] (BindTemporary) // CHECK-NEXT: 3: [B1.2] (ImplicitCastExpr, NoOp, const class temporary_object_expr_with_dtors::D) // CHECK-NEXT: 4: [B1.3] // CHECK-NEXT: 5: const temporary_object_expr_with_dtors::D &d = temporary_object_expr_with_dtors::D(); // CHECK-NEXT: 6: [B1.5].~D() (Implicit destructor) void referenceVariableWithInitializer() { const D &d = D(); } // CHECK: void referenceVariableWithTernaryOperator(bool coin) // CHECK: [B4] // CHECK-NEXT: 1: [B7.2] ? [B5.8] : [B6.8] // CHECK-NEXT: 2: [B4.1] (ImplicitCastExpr, NoOp, const class temporary_object_expr_with_dtors::D) // CHECK-NEXT: 3: [B4.2] // CHECK-NEXT: 4: const temporary_object_expr_with_dtors::D &d = coin ? D::get() : temporary_object_expr_with_dtors::D(0); // CHECK-NEXT: T: (Temp Dtor) [B6.3] // CHECK: [B5] // CHECK-NEXT: 1: D::get // CHECK-NEXT: 2: [B5.1] (ImplicitCastExpr, FunctionToPointerDecay, class temporary_object_expr_with_dtors::D (*)(void)) // CHECK-NEXT: 3: [B5.2]() // CHECK-NEXT: 4: [B5.3] (BindTemporary) // CHECK-NEXT: 5: [B5.4] (ImplicitCastExpr, NoOp, const class temporary_object_expr_with_dtors::D) // CHECK-NEXT: 6: [B5.5] // CHECK-NEXT: 7: [B5.6] (CXXConstructExpr, [B5.8], [B4.3], class temporary_object_expr_with_dtors::D) // CHECK-NEXT: 8: [B5.7] (BindTemporary) // CHECK: [B6] // CHECK-NEXT: 1: 0 // CHECK-NEXT: 2: [B6.1] (CXXConstructExpr, [B6.3], [B6.6], class temporary_object_expr_with_dtors::D) // CHECK-NEXT: 3: [B6.2] (BindTemporary) // CHECK-NEXT: 4: temporary_object_expr_with_dtors::D([B6.3]) (CXXFunctionalCastExpr, ConstructorConversion, class temporary_object_expr_with_dtors::D) // CHECK-NEXT: 5: [B6.4] (ImplicitCastExpr, NoOp, const class temporary_object_expr_with_dtors::D) // CHECK-NEXT: 6: [B6.5] // CHECK-NEXT: 7: [B6.6] (CXXConstructExpr, [B6.8], [B4.3], class temporary_object_expr_with_dtors::D) // CHECK-NEXT: 8: [B6.7] (BindTemporary) // CHECK: [B7] // CHECK-NEXT: 1: coin // CHECK-NEXT: 2: [B7.1] (ImplicitCastExpr, LValueToRValue, _Bool) // CHECK-NEXT: T: [B7.2] ? ... : ... void referenceVariableWithTernaryOperator(bool coin) { const D &d = coin ? D::get() : D(0); } // CHECK: void referenceWithFunctionalCast() // CHECK: 1: 1 // CHECK-NEXT: 2: [B1.1] (CXXConstructExpr, [B1.3], [B1.5], class temporary_object_expr_with_dtors::D) // CHECK-NEXT: 3: [B1.2] (BindTemporary) // CHECK-NEXT: 4: temporary_object_expr_with_dtors::D([B1.3]) (CXXFunctionalCastExpr, ConstructorCon // CHECK-NEXT: 5: [B1.4] // CHECK-NEXT: 6: temporary_object_expr_with_dtors::D &&d = temporary_object_expr_with_dtors::D(1); // CHECK-NEXT: 7: [B1.6].~D() (Implicit destructor) void referenceWithFunctionalCast() { D &&d = D(1); } // Test the condition constructor, we don't care about branch constructors here. // CHECK: void constructorInTernaryCondition() // CHECK: 1: 1 // CHECK-NEXT: 2: [B7.1] (CXXConstructExpr, [B7.3], class temporary_object_expr_with_dtors::D) // CHECK-NEXT: 3: [B7.2] (BindTemporary) // CHECK-NEXT: 4: temporary_object_expr_with_dtors::D([B7.3]) (CXXFunctionalCastExpr, ConstructorConv // CHECK-NEXT: 5: [B7.4] (ImplicitCastExpr, NoOp, const class temporary_object_expr_with_dtors::D) // CHECK-NEXT: 6: [B7.5].operator bool // CHECK-NEXT: 7: [B7.5] // CHECK-NEXT: 8: [B7.7] (ImplicitCastExpr, UserDefinedConversion, _Bool) // CHECK-NEXT: T: [B7.8] ? ... : ... void constructorInTernaryCondition() { const D &d = D(1) ? D(2) : D(3); } } // end namespace temporary_object_expr_with_dtors