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da07ff577c
PrintAsClang is supposed to emit declarations in the same order regardless of the compiler’s internal state, but we have repeatedly found that our current criteria are inadequate, resulting in non-functionality-affecting changes to generated header content. Add a diagnostic that’s emitted when this happens soliciting a bug report. Since there *should* be no cases where the compiler fails to order declarations, this diagnostic is never actually emitted. Instead, we test this change by enabling `-verify` on nearly all PrintAsClang tests to make sure they are unaffected. This did demonstrate a missing criterion that only mattered in C++ mode: extensions that varied only in their generic signature were not sorted stably. Add a sort criterion for this.
117 lines
5.0 KiB
Swift
117 lines
5.0 KiB
Swift
// RUN: %empty-directory(%t)
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// RUN: %target-swift-frontend %s -D RESILIENT_MODULE -module-name Class -emit-module -emit-module-path %t/Class.swiftmodule -enable-library-evolution -clang-header-expose-decls=all-public -emit-clang-header-path %t/class.h
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// RUN: %target-swift-frontend %s -I %t -module-name UseClass -clang-header-expose-decls=all-public -typecheck -verify -emit-clang-header-path %t/useclass.h
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// RUN: %FileCheck %s < %t/useclass.h
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// FIXME: add import automatically?
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// RUN: echo '#include "class.h"' > %t/fixed-useclass.h
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// RUN: cat %t/useclass.h >> %t/fixed-useclass.h
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// RUN: %check-interop-cxx-header-in-clang(%t/fixed-useclass.h -DSWIFT_CXX_INTEROP_HIDE_STL_OVERLAY)
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// rdar://105396625
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// UNSUPPORTED: CPU=arm64e
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#if RESILIENT_MODULE
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open class BaseClass {
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var field: Int64
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public init() {
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field = 0
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}
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open func virtualMethod() {
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print("BaseClass.virtualMethod")
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}
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open var computedProp: Int {
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return 11
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}
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}
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#else
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import Class
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public class CrossModuleDerivedClass: BaseClass {
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override public init() {}
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override public func virtualMethod() {
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print("CrossModuleDerivedClass.virtualMethod")
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}
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override public var computedProp: Int {
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return -56
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}
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public func virtualMethodInDerived() {
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print("CrossModuleDerivedClass.virtualMethodInDerived")
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}
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public var derivedComputedProp: Int {
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return 23
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}
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public func virtualMethod2InDerived() {
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print("CrossModuleDerivedClass.virtualMethod2InDerived")
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}
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}
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public class CrossModuleDerivedDerivedClass: CrossModuleDerivedClass {
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override public init() {}
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override public func virtualMethodInDerived() {
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print("CrossModuleDerivedDerivedClass.virtualMethodInDerived")
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}
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override public var derivedComputedProp: Int {
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return -95
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}
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override public final func virtualMethod2InDerived() {
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print("CrossModuleDerivedDerivedClass.virtualMethod2InDerived")
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}
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}
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public func createCrossModuleDerivedClass() -> CrossModuleDerivedClass {
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return CrossModuleDerivedClass()
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}
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public func createCrossModuleDerivedDerivedClass() -> CrossModuleDerivedDerivedClass {
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return CrossModuleDerivedDerivedClass()
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}
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#endif
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// CHECK: SWIFT_EXTERN void $s8UseClass018CrossModuleDerivedB0C015virtualMethodInE0yyF(SWIFT_CONTEXT void * _Nonnull _self) SWIFT_NOEXCEPT SWIFT_CALL; // virtualMethodInDerived()
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// CHECK-NEXT: SWIFT_EXTERN uint[[#NUM:]]_t $s8UseClass018CrossModuleDerivedB0CMo; // class metadata base offset
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// CHECK-NEXT: SWIFT_EXTERN ptrdiff_t $s8UseClass018CrossModuleDerivedB0C19derivedComputedPropSivg(SWIFT_CONTEXT void * _Nonnull _self) SWIFT_NOEXCEPT SWIFT_CALL;
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// CHECK-NEXT: SWIFT_EXTERN void $s8UseClass018CrossModuleDerivedB0C016virtualMethod2InE0yyF(SWIFT_CONTEXT void * _Nonnull _self) SWIFT_NOEXCEPT SWIFT_CALL; // virtualMethod2InDerived()
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// CHECK: void CrossModuleDerivedClass::virtualMethod() {
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// CHECK-NEXT: _impl::$s5Class04BaseA0C13virtualMethodyyFTj(::swift::_impl::_impl_RefCountedClass::getOpaquePointer(*this));
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// CHECK: void CrossModuleDerivedClass::virtualMethodInDerived() {
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// CHECK-NEXT: void ***selfPtr_ = reinterpret_cast<void ***>( ::swift::_impl::_impl_RefCountedClass::getOpaquePointer(*this));
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// CHECK-NEXT: #ifdef __arm64e__
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// CHECK-NEXT: void **vtable_ = ptrauth_auth_data(*selfPtr_, ptrauth_key_process_independent_data, ptrauth_blend_discriminator(selfPtr_,27361));
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// CHECK-NEXT: #else
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// CHECK-NEXT: void **vtable_ = *selfPtr_;
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// CHECK-NEXT: #endif
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// CHECK-NEXT: struct FTypeAddress {
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// CHECK-NEXT: decltype(_impl::$s8UseClass018CrossModuleDerivedB0C015virtualMethodInE0yyF) * func;
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// CHECK-NEXT: };
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// CHECK-NEXT: FTypeAddress *fptrptr_ = reinterpret_cast<FTypeAddress *>(vtable_ + (_impl::$s8UseClass018CrossModuleDerivedB0CMo + 0) / sizeof(void *));
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// CHECK-NEXT: (* fptrptr_->func)(::swift::_impl::_impl_RefCountedClass::getOpaquePointer(*this));
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// CHECK-NEXT: }
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// CHECK: swift::Int CrossModuleDerivedClass::getDerivedComputedProp() {
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// CHECK: FTypeAddress *fptrptr_ = reinterpret_cast<FTypeAddress *>(vtable_ + (_impl::$s8UseClass018CrossModuleDerivedB0CMo + [[#VM1:]]) / sizeof(void *));
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// CHECK: void CrossModuleDerivedClass::virtualMethod2InDerived() {
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// CHECK: FTypeAddress *fptrptr_ = reinterpret_cast<FTypeAddress *>(vtable_ + (_impl::$s8UseClass018CrossModuleDerivedB0CMo + [[#VM2:]]) / sizeof(void *));
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// CHECK: void CrossModuleDerivedDerivedClass::virtualMethodInDerived() {
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// CHECK: FTypeAddress *fptrptr_ = reinterpret_cast<FTypeAddress *>(vtable_ + (_impl::$s8UseClass018CrossModuleDerivedB0CMo + 0) / sizeof(void *));
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// CHECK: swift::Int CrossModuleDerivedDerivedClass::getDerivedComputedProp() {
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// CHECK: FTypeAddress *fptrptr_ = reinterpret_cast<FTypeAddress *>(vtable_ + (_impl::$s8UseClass018CrossModuleDerivedB0CMo + [[#VM1]]) / sizeof(void *));
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// CHECK: void CrossModuleDerivedDerivedClass::virtualMethod2InDerived() {
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// CHECK-NEXT: _impl::$s8UseClass018CrossModuleDerivedeB0C016virtualMethod2InE0yyF(::swift::_impl::_impl_RefCountedClass::getOpaquePointer(*this));
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