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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.
71 lines
2.2 KiB
Swift
71 lines
2.2 KiB
Swift
// RUN: %empty-directory(%t)
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// RUN: %target-swift-frontend %s -module-name Functions -verify -clang-header-expose-decls=has-expose-attr -disable-availability-checking -typecheck -verify -emit-clang-header-path %t/functions.h
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// RUN: cat %s | grep -v _expose > %t/clean.swift
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// RUN: %target-swift-frontend %t/clean.swift -module-name Functions -clang-header-expose-decls=all-public -disable-availability-checking -typecheck -verify -emit-clang-header-path %t/header.h
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// RUN: %FileCheck %s < %t/header.h
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// REQUIRES: concurrency
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// REQUIRES: distributed
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// CHECK-NOT: Unsupported
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// CHECK: supported
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import Distributed
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public func supported() {}
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@_expose(Cxx)
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public actor ActorClass {
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@_expose(Cxx) // expected-error {{actor-isolated instance method 'unsupported()' can not be exposed to C++}}
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public func unsupported() {}
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@_expose(Cxx) // expected-error {{actor-isolated property 'prop' can not be exposed to C++}}
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public var prop: Int { 42 }
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@_expose(Cxx) // ok
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public init() {
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}
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@_expose(Cxx) // ok
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nonisolated public func supported() {}
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@_expose(Cxx) // ok
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nonisolated public var prop2: Int { 42 }
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@_expose(Cxx) // expected-error {{async instance method 'methodAsync()' can not be exposed to C++}}
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public nonisolated func methodAsync() async {
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}
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}
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@_expose(Cxx)
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public distributed actor DistributedActorClass {
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public typealias ActorSystem = LocalTestingDistributedActorSystem
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public init(actorSystem: LocalTestingDistributedActorSystem) {
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self.actorSystem = actorSystem
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}
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@_expose(Cxx) // expected-error {{actor-isolated instance method 'unsupported()' can not be exposed to C++}}
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public func unsupported() {}
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@_expose(Cxx) // expected-error {{actor-isolated property 'prop' can not be exposed to C++}}
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public var prop: Int { 42 }
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@_expose(Cxx) // expected-error {{actor-isolated distributed instance method 'dist()' can not be exposed to C++}}
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distributed public func dist() {}
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@_expose(Cxx) // ok
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public init() {
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}
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@_expose(Cxx) // ok
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nonisolated public func supported() {}
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@_expose(Cxx) // ok
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nonisolated public var prop2: Int { 42 }
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@_expose(Cxx) // ok
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public struct NestedStruct {}
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}
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