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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.
78 lines
5.2 KiB
Swift
78 lines
5.2 KiB
Swift
// RUN: %empty-directory(%t)
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// RUN: %target-swift-frontend %S/swift-class-virtual-method-dispatch.swift -module-name Class -clang-header-expose-decls=all-public -typecheck -verify -emit-clang-header-path %t/class.h -enable-library-evolution
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// RUN: %FileCheck %s < %t/class.h
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// RUN: %check-interop-cxx-header-in-clang(%t/class.h -DSWIFT_CXX_INTEROP_HIDE_STL_OVERLAY)
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// note: implemented in swift-class-virtual-method-dispatch.swift
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// CHECK: SWIFT_EXTERN void $s5Class04BaseA0C13virtualMethodyyF(SWIFT_CONTEXT void * _Nonnull _self) SWIFT_NOEXCEPT SWIFT_CALL; // virtualMethod()
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// CHECK-NEXT: SWIFT_EXTERN void $s5Class04BaseA0C13virtualMethodyyFTj(SWIFT_CONTEXT void * _Nonnull _self) SWIFT_NOEXCEPT SWIFT_CALL; // dispatch thunk for virtualMethod()
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// CHECK: SWIFT_EXTERN ptrdiff_t $s5Class04BaseA0C19virtualComputedPropSivg(SWIFT_CONTEXT void * _Nonnull _self) SWIFT_NOEXCEPT SWIFT_CALL;
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// CHECK-NEXT: SWIFT_EXTERN ptrdiff_t $s5Class04BaseA0C19virtualComputedPropSivgTj(SWIFT_CONTEXT void * _Nonnull _self) SWIFT_NOEXCEPT SWIFT_CALL; // dispatch thunk for
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// CHECK: void BaseClass::virtualMethod() {
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// CHECK-NEXT: _impl::$s5Class04BaseA0C13virtualMethodyyFTj(::swift::_impl::_impl_RefCountedClass::getOpaquePointer(*this));
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// CHECK-NEXT: }
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// CHECK: swift::Int BaseClass::virtualMethodIntInt(swift::Int x) {
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// CHECK-NEXT: return Class::_impl::$s5Class04BaseA0C016virtualMethodIntE0yS2iFTj(x, ::swift::_impl::_impl_RefCountedClass::getOpaquePointer(*this));
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// CHECK-NEXT: }
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// CHECK: swift::Int BaseClass::finalMethodInBase(swift::Int x) {
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// CHECK-NEXT: return Class::_impl::$s5Class04BaseA0C013finalMethodInB0yS2iF(x, ::swift::_impl::_impl_RefCountedClass::getOpaquePointer(*this));
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// CHECK-NEXT: }
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// CHECK: swift::Int BaseClass::getVirtualComputedProp() {
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// CHECK-NEXT: _impl::$s5Class04BaseA0C19virtualComputedPropSivgTj(::swift::_impl::_impl_RefCountedClass::getOpaquePointer(*this));
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// CHECK: int64_t BaseClass::getVirtualComputedGetSet() {
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// CHECK-NEXT: _impl::$s5Class04BaseA0C21virtualComputedGetSets5Int64VvgTj(::swift::_impl::_impl_RefCountedClass::getOpaquePointer(*this));
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// CHECK: void BaseClass::setVirtualComputedGetSet(int64_t newValue) {
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// CHECK-NEXT: _impl::$s5Class04BaseA0C21virtualComputedGetSets5Int64VvsTj(newValue, ::swift::_impl::_impl_RefCountedClass::getOpaquePointer(*this));
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// CHECK: swift::Int BaseClass::getStoredProp() {
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// CHECK-NEXT: _impl::$s5Class04BaseA0C10storedPropSivgTj(::swift::_impl::_impl_RefCountedClass::getOpaquePointer(*this));
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// CHECK: void BaseClass::setStoredProp(swift::Int value) {
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// CHECK-NEXT: _impl::$s5Class04BaseA0C10storedPropSivsTj(value, ::swift::_impl::_impl_RefCountedClass::getOpaquePointer(*this));
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// CHECK: swift::Int BaseClass::operator [](swift::Int i) const
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// CHECK-NEXT: return Class::_impl::$s5Class04BaseA0CyS2icigTj(i, ::swift::_impl::_impl_RefCountedClass::getOpaquePointer(*this));
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// CHECK: void DerivedClass::virtualMethod() {
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// CHECK-NEXT: _impl::$s5Class04BaseA0C13virtualMethodyyFTj(::swift::_impl::_impl_RefCountedClass::getOpaquePointer(*this));
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// CHECK-NEXT: }
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// CHECK: swift::Int DerivedClass::virtualMethodIntInt(swift::Int x) {
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// CHECK-NEXT: return Class::_impl::$s5Class04BaseA0C016virtualMethodIntE0yS2iFTj(x, ::swift::_impl::_impl_RefCountedClass::getOpaquePointer(*this));
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// CHECK-NEXT: }
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// CHECK: BaseClass DerivedClass::virtualMethodInDerived(const BaseClass& x) {
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// CHECK-NEXT: return _impl::_impl_BaseClass::makeRetained(Class::_impl::$s5Class07DerivedA0C015virtualMethodInB0yAA04BaseA0CAFFTj(::swift::_impl::_impl_RefCountedClass::getOpaquePointer(x), ::swift::_impl::_impl_RefCountedClass::getOpaquePointer(*this)));
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// CHECK-NEXT: }
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// CHECK: swift::Int DerivedClass::getVirtualComputedProp() {
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// CHECK-NEXT: Class::_impl::$s5Class04BaseA0C19virtualComputedPropSivgTj(::swift::_impl::_impl_RefCountedClass::getOpaquePointer(*this));
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// CHECK: void DerivedDerivedClass::virtualMethod() {
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// CHECK-NEXT: _impl::$s5Class07DerivedbA0C13virtualMethodyyF(::swift::_impl::_impl_RefCountedClass::getOpaquePointer(*this));
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// CHECK-NEXT: }
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// CHECK: BaseClass DerivedDerivedClass::virtualMethodInDerived(const BaseClass& x) {
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// CHECK-NEXT: return _impl::_impl_BaseClass::makeRetained(Class::_impl::$s5Class07DerivedbA0C015virtualMethodInB0yAA04BaseA0CAFF(::swift::_impl::_impl_RefCountedClass::getOpaquePointer(x), ::swift::_impl::_impl_RefCountedClass::getOpaquePointer(*this)));
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// CHECK-NEXT: }
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// CHECK: void DerivedDerivedClass::methodInDerivedDerived() {
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// CHECK-NEXT: _impl::$s5Class07DerivedbA0C08methodInbB0yyF(::swift::_impl::_impl_RefCountedClass::getOpaquePointer(*this));
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// CHECK-NEXT: }
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// CHECK: swift::Int DerivedDerivedClass::getStoredProp() {
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// CHECK-NEXT: return Class::_impl::$s5Class07DerivedbA0C10storedPropSivg(::swift::_impl::_impl_RefCountedClass::getOpaquePointer(*this));
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// CHECK: swift::Int DerivedDerivedClass::getComputedPropInDerivedDerived() {
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// CHECK-NEXT: return Class::_impl::$s5Class07DerivedbA0C014computedPropInbB0Sivg(::swift::_impl::_impl_RefCountedClass::getOpaquePointer(*this));
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