mirror of
https://github.com/apple/swift.git
synced 2025-12-21 12:14:44 +01:00
373 lines
15 KiB
C++
373 lines
15 KiB
C++
#pragma once
|
|
|
|
#include "visibility.h"
|
|
|
|
// A wrapper around C++'s static_cast(), which allows Swift to get around interop's current lack of support for inheritance.
|
|
template <class I, class O> O cxxCast(I i) { return static_cast<O>(i); }
|
|
|
|
// A minimal foreign reference type.
|
|
struct
|
|
__attribute__((swift_attr("import_reference")))
|
|
__attribute__((swift_attr("retain:immortal")))
|
|
__attribute__((swift_attr("release:immortal")))
|
|
BaseT {
|
|
public:
|
|
bool isBase;
|
|
BaseT() { isBase = true; }
|
|
BaseT(const BaseT &) = delete;
|
|
static BaseT &getBaseT() { static BaseT singleton; return singleton; }
|
|
};
|
|
|
|
// A foreign reference type that is a subclass of BaseT.
|
|
struct
|
|
__attribute__((swift_attr("import_reference")))
|
|
__attribute__((swift_attr("retain:immortal")))
|
|
__attribute__((swift_attr("release:immortal")))
|
|
SubT : BaseT {
|
|
public:
|
|
SubT() { isBase = false; }
|
|
SubT(const SubT &) = delete;
|
|
static SubT &getSubT() { static SubT singleton; return singleton; }
|
|
};
|
|
|
|
struct
|
|
__attribute__((swift_attr("import_reference")))
|
|
__attribute__((swift_attr("retain:immortal")))
|
|
__attribute__((swift_attr("release:immortal")))
|
|
BaseWithVirtualDestructor {
|
|
int baseField = 123;
|
|
|
|
BaseWithVirtualDestructor() {}
|
|
virtual ~BaseWithVirtualDestructor() {}
|
|
};
|
|
|
|
struct
|
|
__attribute__((swift_attr("import_reference")))
|
|
__attribute__((swift_attr("retain:immortal")))
|
|
__attribute__((swift_attr("release:immortal")))
|
|
DerivedWithVirtualDestructor : public BaseWithVirtualDestructor {
|
|
int derivedField = 456;
|
|
|
|
DerivedWithVirtualDestructor() : BaseWithVirtualDestructor() {}
|
|
~DerivedWithVirtualDestructor() override {}
|
|
};
|
|
|
|
struct
|
|
__attribute__((swift_attr("import_reference")))
|
|
__attribute__((swift_attr("retain:immortal")))
|
|
__attribute__((swift_attr("release:immortal")))
|
|
DerivedOutOfOrder : public BaseT, public DerivedWithVirtualDestructor {
|
|
// DerivedWithVirtualDestructor is the primary base class despite being the
|
|
// second one the list.
|
|
|
|
int leafField = 789;
|
|
|
|
DerivedOutOfOrder() = default;
|
|
~DerivedOutOfOrder() override {}
|
|
|
|
static DerivedOutOfOrder& getInstance() {
|
|
static DerivedOutOfOrder singleton;
|
|
return singleton;
|
|
}
|
|
};
|
|
|
|
SWIFT_BEGIN_NULLABILITY_ANNOTATIONS
|
|
|
|
namespace ImmortalRefereceExample {
|
|
struct __attribute__((swift_attr("import_reference")))
|
|
__attribute__((swift_attr("retain:immortal")))
|
|
__attribute__((swift_attr("release:immortal"))) ImmortalRefType {};
|
|
|
|
ImmortalRefType *returnImmortalRefType() { return new ImmortalRefType(); };
|
|
|
|
// Doubt: Is it fine to not infer in the case of SWIFT_IMMORTAL_REFERENCE
|
|
// rdar://145193396
|
|
struct DerivedFromImmortalRefType : ImmortalRefType {}; // expected-warning {{unable to infer SWIFT_SHARED_REFERENCE for 'DerivedFromImmortalRefType', although one of its transitive base types is marked as SWIFT_SHARED_REFERENCE}}
|
|
DerivedFromImmortalRefType *returnDerivedFromImmortalRefType() {
|
|
return new DerivedFromImmortalRefType();
|
|
};
|
|
|
|
} // namespace ImmortalRefereceExample
|
|
|
|
namespace ExplicitAnnotationHasPrecedence1 {
|
|
struct ValueType {};
|
|
ValueType *returnValueType() { return new ValueType(); }
|
|
|
|
struct __attribute__((swift_attr("import_reference")))
|
|
__attribute__((swift_attr("retain:ret1")))
|
|
__attribute__((swift_attr("release:rel1"))) RefType {};
|
|
RefType *returnRefType() { return new RefType(); } // expected-warning {{'returnRefType' should be annotated with either SWIFT_RETURNS_RETAINED or SWIFT_RETURNS_UNRETAINED as it is returning a SWIFT_SHARED_REFERENCE}}
|
|
|
|
struct DerivedFromValueType : ValueType {};
|
|
DerivedFromValueType *returnDerivedFromValueType() {
|
|
return new DerivedFromValueType();
|
|
}
|
|
|
|
struct __attribute__((swift_attr("import_reference")))
|
|
__attribute__((swift_attr("retain:ret2")))
|
|
__attribute__((swift_attr("release:rel2"))) DerivedFromValueTypeAndAnnotated
|
|
: ValueType {};
|
|
DerivedFromValueTypeAndAnnotated *returnDerivedFromValueTypeAndAnnotated() { // expected-warning {{'returnDerivedFromValueTypeAndAnnotated' should be annotated with either SWIFT_RETURNS_RETAINED or SWIFT_RETURNS_UNRETAINED as it is returning a SWIFT_SHARED_REFERENCE}}
|
|
return new DerivedFromValueTypeAndAnnotated();
|
|
}
|
|
|
|
struct DerivedFromRefType : RefType {};
|
|
DerivedFromRefType *returnDerivedFromRefType() {
|
|
return new DerivedFromRefType();
|
|
}
|
|
|
|
struct __attribute__((swift_attr("import_reference")))
|
|
__attribute__((swift_attr("retain:ret3")))
|
|
__attribute__((swift_attr("release:rel3"))) DerivedFromRefTypeAndAnnotated
|
|
: RefType {};
|
|
DerivedFromRefTypeAndAnnotated *returnDerivedFromRefTypeAndAnnotated() { // expected-warning {{'returnDerivedFromRefTypeAndAnnotated' should be annotated with either SWIFT_RETURNS_RETAINED or SWIFT_RETURNS_UNRETAINED as it is returning a SWIFT_SHARED_REFERENCE}}
|
|
return new DerivedFromRefTypeAndAnnotated();
|
|
}
|
|
} // namespace ExplicitAnnotationHasPrecedence1
|
|
|
|
void ret1(ExplicitAnnotationHasPrecedence1::RefType *v) {};
|
|
void rel1(ExplicitAnnotationHasPrecedence1::RefType *v) {};
|
|
|
|
void ret2(
|
|
ExplicitAnnotationHasPrecedence1::DerivedFromValueTypeAndAnnotated *v) {};
|
|
void rel2(
|
|
ExplicitAnnotationHasPrecedence1::DerivedFromValueTypeAndAnnotated *v) {};
|
|
|
|
void ret3(ExplicitAnnotationHasPrecedence1::DerivedFromRefTypeAndAnnotated *v) {
|
|
};
|
|
void rel3(ExplicitAnnotationHasPrecedence1::DerivedFromRefTypeAndAnnotated *v) {
|
|
};
|
|
|
|
namespace ExplicitAnnotationHasPrecedence2 {
|
|
|
|
struct __attribute__((swift_attr("import_reference")))
|
|
__attribute__((swift_attr("retain:retain_A")))
|
|
__attribute__((swift_attr("release:release_A"))) RefTypeA {};
|
|
|
|
struct __attribute__((swift_attr("import_reference")))
|
|
__attribute__((swift_attr("retain:retain_B")))
|
|
__attribute__((swift_attr("release:release_B"))) RefTypeB {};
|
|
|
|
struct DerivedFromRefTypeAAndB : RefTypeA, RefTypeB {}; // expected-warning {{unable to infer SWIFT_SHARED_REFERENCE for 'DerivedFromRefTypeAAndB', although one of its transitive base types is marked as SWIFT_SHARED_REFERENCE}}
|
|
DerivedFromRefTypeAAndB *returnDerivedFromRefTypeAAndB() {
|
|
return new DerivedFromRefTypeAAndB();
|
|
}
|
|
|
|
struct __attribute__((swift_attr("import_reference")))
|
|
__attribute__((swift_attr("retain:retain_C")))
|
|
__attribute__((swift_attr("release:release_C"))) DerivedFromRefTypeAAndBAnnotated
|
|
: RefTypeA,
|
|
RefTypeB {};
|
|
DerivedFromRefTypeAAndBAnnotated *returnDerivedFromRefTypeAAndBAnnotated() { // expected-warning {{'returnDerivedFromRefTypeAAndBAnnotated' should be annotated with either SWIFT_RETURNS_RETAINED or SWIFT_RETURNS_UNRETAINED as it is returning a SWIFT_SHARED_REFERENCE}}
|
|
return new DerivedFromRefTypeAAndBAnnotated();
|
|
}
|
|
} // namespace ExplicitAnnotationHasPrecedence2
|
|
|
|
void retain_A(ExplicitAnnotationHasPrecedence2::RefTypeA *v) {};
|
|
void release_A(ExplicitAnnotationHasPrecedence2::RefTypeA *v) {};
|
|
void retain_B(ExplicitAnnotationHasPrecedence2::RefTypeB *v) {};
|
|
void release_B(ExplicitAnnotationHasPrecedence2::RefTypeB *v) {};
|
|
void retain_C(
|
|
ExplicitAnnotationHasPrecedence2::DerivedFromRefTypeAAndBAnnotated *v) {};
|
|
void release_C(
|
|
ExplicitAnnotationHasPrecedence2::DerivedFromRefTypeAAndBAnnotated *v) {};
|
|
|
|
namespace BasicInheritanceExample {
|
|
struct ValueType {};
|
|
ValueType *returnValueType() { return new ValueType(); };
|
|
|
|
struct __attribute__((swift_attr("import_reference")))
|
|
__attribute__((swift_attr("retain:RCRetain")))
|
|
__attribute__((swift_attr("release:RCRelease"))) RefType {};
|
|
|
|
RefType *returnRefType() { return new RefType(); }; // expected-warning {{'returnRefType' should be annotated with either SWIFT_RETURNS_RETAINED or SWIFT_RETURNS_UNRETAINED as it is returning a SWIFT_SHARED_REFERENC}}
|
|
|
|
struct DerivedFromRefType : RefType {};
|
|
DerivedFromRefType *returnDerivedFromRefType() { // TODO: rdar://145098078 Missing SWIFT_RETURNS_(UN)RETAINED annotation warning should trigger for inferred foreeign reference types as well
|
|
return new DerivedFromRefType();
|
|
};
|
|
} // namespace BasicInheritanceExample
|
|
|
|
void RCRetain(BasicInheritanceExample::RefType *v) {}
|
|
void RCRelease(BasicInheritanceExample::RefType *v) {}
|
|
|
|
namespace MultipleInheritanceExample1 {
|
|
struct __attribute__((swift_attr("import_reference")))
|
|
__attribute__((swift_attr("retain:baseRetain1")))
|
|
__attribute__((swift_attr("release:baseRelease1"))) BaseRef1 {};
|
|
|
|
struct __attribute__((swift_attr("import_reference")))
|
|
__attribute__((swift_attr("retain:baseRetain2")))
|
|
__attribute__((swift_attr("release:baseRelease2"))) BaseRef2 {};
|
|
|
|
struct __attribute__((swift_attr("import_reference")))
|
|
__attribute__((swift_attr("retain:baseRetain1")))
|
|
__attribute__((swift_attr("release:baseRelease1"))) BaseRef3 : BaseRef1 {};
|
|
|
|
struct DerivedFromBaseRef1AndBaseRef2 : BaseRef1, BaseRef2 {}; // expected-warning {{unable to infer SWIFT_SHARED_REFERENCE for 'DerivedFromBaseRef1AndBaseRef2', although one of its transitive base types is marked as SWIFT_SHARED_REFERENCE}}
|
|
DerivedFromBaseRef1AndBaseRef2 *returnDerivedFromBaseRef1AndBaseRef2() {
|
|
return new DerivedFromBaseRef1AndBaseRef2();
|
|
};
|
|
|
|
struct DerivedFromBaseRef3 : BaseRef3 {};
|
|
DerivedFromBaseRef3 *returnDerivedFromBaseRef3() {
|
|
return new DerivedFromBaseRef3();
|
|
};
|
|
} // namespace MultipleInheritanceExample1
|
|
|
|
void baseRetain1(MultipleInheritanceExample1::BaseRef1 *v) {}
|
|
void baseRelease1(MultipleInheritanceExample1::BaseRef1 *v) {}
|
|
|
|
void baseRetain2(MultipleInheritanceExample1::BaseRef2 *v) {}
|
|
void baseRelease2(MultipleInheritanceExample1::BaseRef2 *v) {}
|
|
|
|
namespace MultipleInheritanceExample2 {
|
|
struct __attribute__((swift_attr("import_reference")))
|
|
__attribute__((swift_attr("retain:bRetain1")))
|
|
__attribute__((swift_attr("release:bRelease1"))) B1 {};
|
|
|
|
struct __attribute__((swift_attr("import_reference")))
|
|
__attribute__((swift_attr("retain:bRetain2")))
|
|
__attribute__((swift_attr("release:bRelease2"))) B2 {};
|
|
|
|
struct __attribute__((swift_attr("import_reference")))
|
|
__attribute__((swift_attr("retain:bRetain3")))
|
|
__attribute__((swift_attr("release:bRelease3"))) B3 {};
|
|
|
|
struct D : B1, B2, B3 {}; // expected-warning {{unable to infer SWIFT_SHARED_REFERENCE for 'D', although one of its transitive base types is marked as SWIFT_SHARED_REFERENCE}}
|
|
D *returnD() { return new D(); };
|
|
} // namespace MultipleInheritanceExample2
|
|
|
|
void bRetain1(MultipleInheritanceExample2::B1 *v) {}
|
|
void bRelease1(MultipleInheritanceExample2::B1 *v) {}
|
|
|
|
void bRetain2(MultipleInheritanceExample2::B2 *v) {}
|
|
void bRelease2(MultipleInheritanceExample2::B2 *v) {}
|
|
|
|
void bRetain3(MultipleInheritanceExample2::B3 *v) {}
|
|
void bRelease3(MultipleInheritanceExample2::B3 *v) {}
|
|
|
|
// To check for x, y, x kind of pattern in parent's retain/release function name
|
|
// when infering SWIFT_SHARED_REFERENCE
|
|
namespace MultipleInheritanceExample3 {
|
|
struct __attribute__((swift_attr("import_reference")))
|
|
__attribute__((swift_attr("retain:retain1")))
|
|
__attribute__((swift_attr("release:release1"))) B1 {};
|
|
|
|
struct __attribute__((swift_attr("import_reference")))
|
|
__attribute__((swift_attr("retain:retain2")))
|
|
__attribute__((swift_attr("release:release2"))) B2 {};
|
|
|
|
struct __attribute__((swift_attr("import_reference")))
|
|
__attribute__((swift_attr("retain:retain1")))
|
|
__attribute__((swift_attr("release:release1"))) B3 : B1 {};
|
|
|
|
struct D : B1, B2, B3 {}; // expected-warning {{unable to infer SWIFT_SHARED_REFERENCE for 'D', although one of its transitive base types is marked as SWIFT_SHARED_REFERENCE}}
|
|
D *returnD() { return new D(); };
|
|
} // namespace MultipleInheritanceExample3
|
|
|
|
void retain1(MultipleInheritanceExample3::B1 *v) {}
|
|
void release1(MultipleInheritanceExample3::B1 *v) {}
|
|
|
|
void retain2(MultipleInheritanceExample3::B2 *v) {}
|
|
void release2(MultipleInheritanceExample3::B2 *v) {}
|
|
|
|
namespace OverloadedRetainRelease {
|
|
struct __attribute__((swift_attr("import_reference")))
|
|
__attribute__((swift_attr("retain:sameretain")))
|
|
__attribute__((swift_attr("release:samerelease"))) B1 {}; // expected-error {{multiple functions 'sameretain' found; there must be exactly one retain function for reference type 'B1'}}
|
|
// expected-error@-1 {{multiple functions 'samerelease' found; there must be exactly one release function for reference type 'B1'}}
|
|
|
|
|
|
struct __attribute__((swift_attr("import_reference")))
|
|
__attribute__((swift_attr("retain:sameretain")))
|
|
__attribute__((swift_attr("release:samerelease"))) B2 {}; // expected-error {{multiple functions 'sameretain' found; there must be exactly one retain function for reference type 'B2'}}
|
|
// expected-error@-1 {{multiple functions 'samerelease' found; there must be exactly one release function for reference type 'B2'}}
|
|
|
|
struct D : B1, B2 {}; // expected-warning {{unable to infer SWIFT_SHARED_REFERENCE for 'D', although one of its transitive base types is marked as SWIFT_SHARED_REFERENCE}}
|
|
D *returnD() { return new D(); };
|
|
} // namespace OverloadedRetainRelease
|
|
|
|
void sameretain(OverloadedRetainRelease::B1 *v) {}
|
|
void samerelease(OverloadedRetainRelease::B1 *v) {}
|
|
|
|
void sameretain(OverloadedRetainRelease::B2 *v) {}
|
|
void samerelease(OverloadedRetainRelease::B2 *v) {}
|
|
|
|
namespace RefTypeDiamondInheritance {
|
|
struct __attribute__((swift_attr("import_reference")))
|
|
__attribute__((swift_attr("retain:retainA")))
|
|
__attribute__((swift_attr("release:releaseA"))) A {};
|
|
|
|
|
|
struct B : A {};
|
|
|
|
struct C : A {};
|
|
|
|
struct Diamond : B, C {}; // expected-warning {{unable to infer SWIFT_SHARED_REFERENCE for 'Diamond', although one of its transitive base types is marked as SWIFT_SHARED_REFERENCE}}
|
|
Diamond *returnDiamond() { return new Diamond(); };
|
|
|
|
struct BVirtual : virtual A {};
|
|
|
|
struct CVirtual : virtual A {};
|
|
|
|
struct VirtualDiamond : BVirtual, CVirtual {};
|
|
VirtualDiamond *returnVirtualDiamond() { return new VirtualDiamond(); };
|
|
} // namespace RefTypeDiamondInheritance
|
|
|
|
void retainA(RefTypeDiamondInheritance::A *a) {};
|
|
void releaseA(RefTypeDiamondInheritance::A *a) {};
|
|
|
|
namespace NonRefTypeDiamondInheritance {
|
|
struct A {};
|
|
|
|
struct __attribute__((swift_attr("import_reference")))
|
|
__attribute__((swift_attr("retain:retainB")))
|
|
__attribute__((swift_attr("release:releaseB"))) B : A {};
|
|
|
|
struct C : A {};
|
|
|
|
struct Diamond : B, C {};
|
|
Diamond *returnDiamond() { return new Diamond(); };
|
|
|
|
} // namespace NonRefTypeDiamondInheritance
|
|
|
|
void retainB(NonRefTypeDiamondInheritance::B *a) {};
|
|
void releaseB(NonRefTypeDiamondInheritance::B *a) {};
|
|
|
|
namespace InheritingTemplatedRefType {
|
|
|
|
template <class T>
|
|
class __attribute__((swift_attr("import_reference")))
|
|
__attribute__((swift_attr("retain:forestRetain"))) __attribute__((
|
|
swift_attr("release:forestRelease"))) IntrusiveRefCountedTemplate {
|
|
public:
|
|
IntrusiveRefCountedTemplate() : referenceCount(1) {}
|
|
IntrusiveRefCountedTemplate(const IntrusiveRefCountedTemplate &) = delete;
|
|
void retain() { ++referenceCount; }
|
|
|
|
void release() {
|
|
--referenceCount;
|
|
if (referenceCount == 0)
|
|
delete static_cast<T *>(this);
|
|
}
|
|
|
|
private:
|
|
int referenceCount;
|
|
};
|
|
|
|
class Forest : public IntrusiveRefCountedTemplate<Forest> {};
|
|
Forest *returnForest() { return new Forest(); };
|
|
} // namespace InheritingTemplatedRefType
|
|
|
|
void forestRetain(InheritingTemplatedRefType::IntrusiveRefCountedTemplate<
|
|
InheritingTemplatedRefType::Forest> *forest) {
|
|
forest->retain();
|
|
}
|
|
void forestRelease(InheritingTemplatedRefType::IntrusiveRefCountedTemplate<
|
|
InheritingTemplatedRefType::Forest> *forest) {
|
|
forest->release();
|
|
}
|
|
|
|
SWIFT_END_NULLABILITY_ANNOTATIONS
|