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This commit compares the attributes on the decl inside the `@abi` attribute to those in the decl it’s attached to, diagnosing ABI-incompatible differences. It also rejects many attributes that don’t need to be specified in the `@abi` attribute, such as ObjC-ness, access control, or ABI-neutral traits like `@discardableResult`, so developers know to remove them.
19 lines
550 B
Swift
19 lines
550 B
Swift
// RUN: %target-typecheck-verify-swift -enable-experimental-feature ABIAttribute
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// UNSUPPORTED: OS=windows-msvc
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// REQUIRES: swift_feature_ABIAttribute
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@_weakLinked public func f() { }
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// @_weakLinked -- banned in @abi
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struct WeakLinked {
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@abi(@_weakLinked func fn1()) // expected-error {{unused '_weakLinked' attribute in '@abi'}} {{8-20=}}
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@_weakLinked func fn1() {}
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@abi(@_weakLinked func fn2()) // expected-error {{unused '_weakLinked' attribute in '@abi'}} {{8-20=}}
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func fn2() {}
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@abi(func fn3())
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@_weakLinked func fn3() {}
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}
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