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94b466656e
It is really involved to change how methods and classes are emitted into the header so this patch introduces the impression of nested structs through using statements and still emits the structs themselves as top level structs. It emits them in their own namespace to avoid name collisions. This patch also had to change some names to be fully qualified to avoid some name lookup errors in case of nested structs. Moreover, nesting level of 3 and above requires C++17 because it relies on nested namespaces. Only nested structs are supported, not nested classes. Since this patch is already started to grow quite big, I decided to put it out for reviews and plan to address some of the shortcomings in a follow-up PR. rdar://118793469
143 lines
6.5 KiB
Swift
143 lines
6.5 KiB
Swift
// RUN: %empty-directory(%t)
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// RUN: %target-swift-frontend %s -typecheck -module-name Class -clang-header-expose-decls=all-public -emit-clang-header-path %t/class.h
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// RUN: %FileCheck %s < %t/class.h
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// RUN: %check-interop-cxx-header-in-clang(%t/class.h)
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// RUN: %target-swift-frontend %s -typecheck -module-name Class -enable-library-evolution -clang-header-expose-decls=all-public -emit-clang-header-path %t/class-evo.h
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// RUN: %FileCheck %s < %t/class-evo.h
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// RUN: %check-interop-cxx-header-in-clang(%t/class-evo.h)
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public final class ClassWithIntField {
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var field: Int64
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init() {
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field = 0
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print("init ClassWithIntField")
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}
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deinit {
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print("destroy ClassWithIntField")
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}
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}
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// CHECK: namespace Class SWIFT_PRIVATE_ATTR SWIFT_SYMBOL_MODULE("Class") {
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// CHECK: SWIFT_EXTERN void * _Nonnull $s5Class011passThroughA12WithIntFieldyAA0adeF0CADF(void * _Nonnull x) SWIFT_NOEXCEPT SWIFT_CALL; // passThroughClassWithIntField(_:)
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// CHECK-NEXT: SWIFT_EXTERN void * _Nonnull $s5Class06returnA12WithIntFieldAA0acdE0CyF(void) SWIFT_NOEXCEPT SWIFT_CALL; // returnClassWithIntField()
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// CHECK-NEXT: SWIFT_EXTERN void $s5Class04takeA12WithIntFieldyyAA0acdE0CF(void * _Nonnull x) SWIFT_NOEXCEPT SWIFT_CALL; // takeClassWithIntField(_:)
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// CHECK-NEXT: SWIFT_EXTERN void $s5Class04takeA17WithIntFieldInoutyyAA0acdE0CzF(void * _Nonnull * _Nonnull x) SWIFT_NOEXCEPT SWIFT_CALL; // takeClassWithIntFieldInout(_:)
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// CHECK: namespace Class SWIFT_PRIVATE_ATTR SWIFT_SYMBOL_MODULE("Class") {
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// CHECK: class SWIFT_SYMBOL("s:5Class0A12WithIntFieldC") ClassWithIntField;
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// CHECK-NEXT: } // end namespace
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// CHECK: namespace
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// CHECK-SAME: swift SWIFT_PRIVATE_ATTR {
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// CHECK-NEXT: #pragma clang diagnostic push
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// CHECK-NEXT: #pragma clang diagnostic ignored "-Wc++17-extensions"
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// CHECK-NEXT: template<>
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// CHECK-NEXT: inline const constexpr bool isUsableInGenericContext<Class::ClassWithIntField> = true;
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// CHECK-NEXT: #pragma clang diagnostic pop
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// CHECK-NEXT: } // namespace swift
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// CHECK: namespace
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// CHECK-SAME: Class SWIFT_PRIVATE_ATTR SWIFT_SYMBOL_MODULE("Class") {
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// CHECK: namespace
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// CHECK-SAME: _impl {
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// CHECK-EMPTY:
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// CHECK-NEXT: class _impl_ClassWithIntField;
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// CHECK-NEXT: // Type metadata accessor for ClassWithIntField
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// CHECK-NEXT: SWIFT_EXTERN swift::_impl::MetadataResponseTy $s5Class0A12WithIntFieldCMa(swift::_impl::MetadataRequestTy) SWIFT_NOEXCEPT SWIFT_CALL;
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// CHECK-EMPTY:
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// CHECK-EMPTY:
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// CHECK-NEXT: } // namespace _impl
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// CHECK-EMPTY:
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// CHECK-NEXT: class SWIFT_SYMBOL("s:5Class0A12WithIntFieldC") ClassWithIntField final : public swift::_impl::RefCountedClass {
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// CHECK-NEXT: public:
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// CHECK-NEXT: using RefCountedClass::RefCountedClass;
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// CHECK-NEXT: using RefCountedClass::operator=;
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// CHECK-NEXT: protected:
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// CHECK-NEXT: SWIFT_INLINE_THUNK ClassWithIntField(void * _Nonnull ptr) noexcept : RefCountedClass(ptr) {}
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// CHECK-NEXT: private:
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// CHECK-NEXT: friend class _impl::_impl_ClassWithIntField;
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// CHECK-NEXT: #pragma clang diagnostic push
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// CHECK-NEXT: #pragma clang diagnostic ignored "-Wc++17-extensions"
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// CHECK-NEXT: #pragma clang diagnostic push
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// CHECK-NEXT: #pragma clang diagnostic ignored "-Wreserved-identifier"
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// CHECK-NEXT: typedef char $s5Class0A12WithIntFieldCD;
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// CHECK-NEXT: static inline constexpr $s5Class0A12WithIntFieldCD __swift_mangled_name = 0;
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// CHECK-NEXT: #pragma clang diagnostic pop
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// CHECK-NEXT: #pragma clang diagnostic pop
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// CHECK-NEXT: };
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// CHECK-EMPTY:
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// CHECK-NEXT:namespace _impl {
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// CHECK-EMPTY:
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// CHECK-NEXT:class _impl_ClassWithIntField {
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// CHECK-NEXT:public:
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// CHECK-NEXT:static SWIFT_INLINE_THUNK ClassWithIntField makeRetained(void * _Nonnull ptr) noexcept { return ClassWithIntField(ptr); }
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// CHECK-NEXT:};
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// CHECK-EMPTY:
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// CHECK-NEXT:} // namespace _impl
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// CHECK-EMPTY:
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// CHECK-NEXT: } // end namespace
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// CHECK-EMPTY:
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// CHECK-NEXT: namespace swift SWIFT_PRIVATE_ATTR {
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// CHECK-NEXT: #pragma clang diagnostic push
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// CHECK-NEXT: #pragma clang diagnostic ignored "-Wc++17-extensions"
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// CHECK-NEXT: template<>
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// CHECK-NEXT: struct TypeMetadataTrait<Class::ClassWithIntField> {
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// CHECK-NEXT: SWIFT_INLINE_PRIVATE_HELPER void * _Nonnull getTypeMetadata() {
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// CHECK-NEXT: return Class::_impl::$s5Class0A12WithIntFieldCMa(0)._0;
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// CHECK-NEXT: }
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// CHECK-NEXT: };
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// CHECK-NEXT: namespace _impl{
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// CHECK-NEXT: template<>
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// CHECK-NEXT: struct implClassFor<Class::ClassWithIntField> { using type = Class::_impl::_impl_ClassWithIntField; };
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// CHECK-NEXT: } // namespace
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// CHECK-NEXT: #pragma clang diagnostic pop
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// CHECK-NEXT: } // namespace swift
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// CHECK-EMPTY:
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// CHECK-NEXT: namespace Class SWIFT_PRIVATE_ATTR SWIFT_SYMBOL_MODULE("Class") {
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public final class register { }
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// CHECK: class SWIFT_SYMBOL("s:5Class8registerC") register_ final : public swift::_impl::RefCountedClass {
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// CHECK: SWIFT_INLINE_THUNK ClassWithIntField passThroughClassWithIntField(const ClassWithIntField& x) noexcept SWIFT_SYMBOL("s:5Class011passThroughA12WithIntFieldyAA0adeF0CADF") SWIFT_WARN_UNUSED_RESULT {
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// CHECK-NEXT: return _impl::_impl_ClassWithIntField::makeRetained(Class::_impl::$s5Class011passThroughA12WithIntFieldyAA0adeF0CADF(::swift::_impl::_impl_RefCountedClass::getOpaquePointer(x)));
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// CHECK-NEXT: }
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public func returnClassWithIntField() -> ClassWithIntField {
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return ClassWithIntField()
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}
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public func passThroughClassWithIntField(_ x: ClassWithIntField) -> ClassWithIntField {
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x.field = 42
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return x
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}
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public func takeClassWithIntField(_ x: ClassWithIntField) {
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print("ClassWithIntField: \(x.field);")
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}
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public func takeClassWithIntFieldInout(_ x: inout ClassWithIntField) {
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x = ClassWithIntField()
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x.field = -11
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}
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// CHECK: SWIFT_INLINE_THUNK ClassWithIntField returnClassWithIntField() noexcept SWIFT_SYMBOL("s:5Class06returnA12WithIntFieldAA0acdE0CyF") SWIFT_WARN_UNUSED_RESULT {
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// CHECK-NEXT: return _impl::_impl_ClassWithIntField::makeRetained(Class::_impl::$s5Class06returnA12WithIntFieldAA0acdE0CyF());
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// CHECK-NEXT: }
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// CHECK: SWIFT_INLINE_THUNK void takeClassWithIntField(const ClassWithIntField& x) noexcept SWIFT_SYMBOL("s:5Class04takeA12WithIntFieldyyAA0acdE0CF") {
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// CHECK-NEXT: _impl::$s5Class04takeA12WithIntFieldyyAA0acdE0CF(::swift::_impl::_impl_RefCountedClass::getOpaquePointer(x));
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// CHECK-NEXT: }
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// CHECK: SWIFT_INLINE_THUNK void takeClassWithIntFieldInout(ClassWithIntField& x) noexcept SWIFT_SYMBOL("s:5Class04takeA17WithIntFieldInoutyyAA0acdE0CzF") {
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// CHECK-NEXT: _impl::$s5Class04takeA17WithIntFieldInoutyyAA0acdE0CzF(&::swift::_impl::_impl_RefCountedClass::getOpaquePointerRef(x));
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// CHECK-NEXT: }
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