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This can help work around problems when the names of a C++ declaration and a Swift declaration would collide, or to temporarily work around compiler bugs. rdar://152838988&140802127&158843666
73 lines
2.3 KiB
Swift
73 lines
2.3 KiB
Swift
// RUN: %target-typecheck-verify-swift
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@_cdecl("cdecl_foo") func foo(x: Int) -> Int { return x }
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@_expose(Cxx) func test() {}
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@_expose(Cxx, "renamed") func renamedFunc() {}
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@_expose(Cxx, "") func emptyNameOk() {}
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@_expose // expected-error {{expected '(' in '_expose' attribute}}
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func exposeWithoutArgs() {}
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@_expose(CplusPlus) // expected-error {{expected '_expose' option such as 'Cxx'}}
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func incorrectLangSpecifier() {}
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@_expose(Cxx) @_cdecl("test") // expected-error {{'@_expose' cannot be applied to an '@_cdecl' declaration}}
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func cdeclAndExpose() {}
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@_expose(Cxx) @_expose(!Cxx) // expected-error {{'@_expose' cannot be applied to an '@_expose(Cxx)' declaration}}
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func contradictingExpose() {}
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@_expose(!Cxx) @_expose(Cxx) // expected-error {{'@_expose' cannot be applied to an '@_expose(Cxx)' declaration}}
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func contradictingExpose2() {}
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@_expose(!Cxx, "name") // expected-error {{'@_expose(!Cxx)' does not accept a name argument}}
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func notExposeWithName() {}
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func hasNested() {
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@_expose(Cxx) // expected-error{{can only be used in a non-local scope}}
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func nested() { }
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}
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struct NotExposedStruct {
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@_expose(Cxx) // expected-error {{'@_expose' cannot be applied inside of unexposed declaration 'NotExposedStruct'}}
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func errorOnInnerExpose() {}
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}
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@_expose(Cxx)
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struct ExposedStruct {
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@_expose(Cxx, "create") // expected-error {{invalid declaration name 'create' specified in '@_expose'; exposed initializer name must start with 'init'}}
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init() {}
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@_expose(Cxx, "initWith")
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init(with y: Int) {}
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}
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@_expose(Cxx)
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@_expose(Cxx) // expected-error {{duplicate attribute}}
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func exposeToCxxCxx() {}
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@_expose(wasm) func exposeToWasm() {}
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@_expose(wasm, "with_name") func wasmName() {}
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@_expose(wasm, "") func wasmEmptyNameOk() {}
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@_expose(wasm) struct WasmErrorOnStruct { // expected-error {{'@_expose' with 'wasm' can only be applied to global functions}}
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@_expose(wasm) func errorOnMethod() {} // expected-error {{'@_expose' with 'wasm' can only be applied to global functions}}
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}
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func wasmNested() {
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@_expose(wasm) // expected-error {{attribute '_expose' can only be used in a non-local scope}}
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func errorOnInnerExpose() {}
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}
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@_expose(Cxx)
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@_expose(wasm)
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func exposeToCxxWasm() {}
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@_expose(wasm)
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@_expose(Cxx)
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func exposeToWasmCxx() {}
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@_expose(wasm)
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@_expose(wasm) // expected-error {{duplicate attribute}}
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func exposeToWasmWasm() {}
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