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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.
76 lines
3.2 KiB
Swift
76 lines
3.2 KiB
Swift
// RUN: %empty-directory(%t)
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// RUN: %target-swift-frontend %s -module-name Core -clang-header-expose-decls=all-public -typecheck -verify -emit-clang-header-path %t/core.h
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// RUN: %FileCheck %s < %t/core.h
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// RUN: %check-interop-cxx-header-in-clang(%t/core.h)
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// REQUIRES: PTRSIZE=64
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// REQUIRES: OS=macosx
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// CHECK: // type metadata address for Bool.
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// CHECK-NEXT: SWIFT_IMPORT_STDLIB_SYMBOL extern size_t $sSbN;
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// CHECK-NEXT: // type metadata address for Int8.
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// CHECK-NEXT: SWIFT_IMPORT_STDLIB_SYMBOL extern size_t $ss4Int8VN;
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// CHECK-NEXT: // type metadata address for UInt8.
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// CHECK-NEXT: SWIFT_IMPORT_STDLIB_SYMBOL extern size_t $ss5UInt8VN;
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// CHECK-NEXT: // type metadata address for Int16.
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// CHECK-NEXT: SWIFT_IMPORT_STDLIB_SYMBOL extern size_t $ss5Int16VN;
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// CHECK-NEXT: // type metadata address for UInt16.
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// CHECK-NEXT: SWIFT_IMPORT_STDLIB_SYMBOL extern size_t $ss6UInt16VN;
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// CHECK-NEXT: // type metadata address for Int32.
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// CHECK-NEXT: SWIFT_IMPORT_STDLIB_SYMBOL extern size_t $ss5Int32VN;
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// CHECK-NEXT: // type metadata address for UInt32.
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// CHECK-NEXT: SWIFT_IMPORT_STDLIB_SYMBOL extern size_t $ss6UInt32VN;
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// CHECK-NEXT: // type metadata address for Int64.
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// CHECK-NEXT: SWIFT_IMPORT_STDLIB_SYMBOL extern size_t $ss5Int64VN;
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// CHECK-NEXT: // type metadata address for UInt64.
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// CHECK-NEXT: SWIFT_IMPORT_STDLIB_SYMBOL extern size_t $ss6UInt64VN;
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// CHECK-NEXT: // type metadata address for Float.
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// CHECK-NEXT: SWIFT_IMPORT_STDLIB_SYMBOL extern size_t $sSfN;
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// CHECK-NEXT: // type metadata address for Double.
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// CHECK-NEXT: SWIFT_IMPORT_STDLIB_SYMBOL extern size_t $sSdN;
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// CHECK-NEXT: // type metadata address for OpaquePointer.
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// CHECK-NEXT: SWIFT_IMPORT_STDLIB_SYMBOL extern size_t $ss13OpaquePointerVN;
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// CHECK-NEXT: // type metadata address for Int.
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// CHECK-NEXT: SWIFT_IMPORT_STDLIB_SYMBOL extern size_t $sSiN;
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// CHECK-NEXT: // type metadata address for UInt.
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// CHECK-NEXT: SWIFT_IMPORT_STDLIB_SYMBOL extern size_t $sSuN;
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// CHECK-EMPTY:
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// CHECK-NEXT: #ifdef __cplusplus
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// CHECK-NEXT: }
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// CHECK-NEXT: #endif
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// CHECK: inline const constexpr bool isUsableInGenericContext<void *> = true;
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// CHECK-EMPTY:
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// CHECK-NEXT: template<>
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// CHECK-NEXT: struct TypeMetadataTrait<void *> {
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// CHECK-NEXT: static SWIFT_INLINE_THUNK void * _Nonnull getTypeMetadata() {
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// CHECK-NEXT: return &_impl::$ss13OpaquePointerVN;
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// CHECK-NEXT: }
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// CHECK-NEXT: };
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// CHECK-EMPTY:
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// CHECK-NEXT: template<>
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// CHECK-NEXT: inline const constexpr bool isUsableInGenericContext<swift::Int> = true;
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// CHECK-EMPTY:
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// CHECK-NEXT: template<>
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// CHECK-NEXT: struct TypeMetadataTrait<swift::Int> {
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// CHECK-NEXT: static SWIFT_INLINE_THUNK void * _Nonnull getTypeMetadata() {
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// CHECK-NEXT: return &_impl::$sSiN;
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// CHECK-NEXT: }
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// CHECK-NEXT: };
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// CHECK-EMPTY:
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// CHECK-NEXT: template<>
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// CHECK-NEXT: inline const constexpr bool isUsableInGenericContext<swift::UInt> = true;
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// CHECK-EMPTY:
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// CHECK-NEXT: template<>
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// CHECK-NEXT: struct TypeMetadataTrait<swift::UInt> {
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// CHECK-NEXT: static SWIFT_INLINE_THUNK void * _Nonnull getTypeMetadata() {
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// CHECK-NEXT: return &_impl::$sSuN;
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// CHECK-NEXT: }
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// CHECK-NEXT: };
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// CHECK-EMPTY:
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// CHECK-NEXT: #pragma clang diagnostic pop
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// CHECK-EMPTY:
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// CHECK-NEXT: } // namespace swift
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