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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.
38 lines
1.7 KiB
Swift
38 lines
1.7 KiB
Swift
// RUN: %empty-directory(%t)
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// RUN: %target-swift-frontend %s -module-name Struct -clang-header-expose-decls=all-public -typecheck -verify -emit-clang-header-path %t/struct.h
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// RUN: %FileCheck %s < %t/struct.h
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// RUN: %check-interop-cxx-header-in-clang(%t/struct.h)
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@available(macOS 11, *)
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public struct StructWithMacAvailability {
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var field: Int16
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init() {
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field = 0
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}
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}
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// CHECK: class SWIFT_AVAILABILITY(macos,introduced=11) SWIFT_SYMBOL("s:6Struct0A19WithMacAvailabilityV") StructWithMacAvailability;
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// CHECK: class SWIFT_AVAILABILITY(macos,introduced=11) _impl_StructWithMacAvailability;
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// CHECK: class SWIFT_AVAILABILITY(macos,introduced=11) SWIFT_SYMBOL("s:6Struct0A19WithMacAvailabilityV") StructWithMacAvailability final {
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// CHECK: class SWIFT_AVAILABILITY(macos,introduced=11) _impl_StructWithMacAvailability {
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// CHECK: struct SWIFT_AVAILABILITY(macos,introduced=11) TypeMetadataTrait<Struct::StructWithMacAvailability> {
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// CHECK: struct SWIFT_AVAILABILITY(macos,introduced=11) implClassFor<Struct::StructWithMacAvailability>
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@available(*, unavailable, message: "stuff happened")
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public struct StructWithUnavailable {
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var field: Int16
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init() {
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field = 0
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}
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}
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// CHECK: class SWIFT_UNAVAILABLE_MSG("stuff happened") _impl_StructWithUnavailable;
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// CHECK: class SWIFT_UNAVAILABLE_MSG("stuff happened") SWIFT_SYMBOL("s:6Struct0A15WithUnavailableV") StructWithUnavailable final
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// CHECK: class SWIFT_UNAVAILABLE_MSG("stuff happened") _impl_StructWithUnavailable {
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// CHECK: struct SWIFT_UNAVAILABLE_MSG("stuff happened") TypeMetadataTrait<Struct::StructWithUnavailable> {
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// CHECK: struct SWIFT_UNAVAILABLE_MSG("stuff happened") implClassFor<Struct::StructWithUnavailable>
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