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swift-mirror/test/Interop/WebAssembly/extern-wasm-decls-to-swift.swift
Yuta Saito 79b3d2d626 Add underscore prefix to extern attribute
It's already guarded by a feature flag, but it would be nice to signal
users that it's not stable yet by adding an underscore prefix.
2023-11-07 02:01:02 +00:00

27 lines
1.0 KiB
Swift

// RUN: %empty-directory(%t)
// RUN: %target-swift-frontend %s -enable-experimental-feature Extern -emit-ir -module-name Extern | %FileCheck %s
// CHECK: declare {{.*}} void @"$s6Extern7import1yyF"() [[EA1:#[0-9]+]]
@_extern(wasm, module: "m0", name: "import1")
func import1()
// CHECK: declare {{.*}} i32 @"$s6Extern20import2WithReturnInts5Int32VyF"() [[EA2:#[0-9]+]]
@_extern(wasm, module: "m0", name: "import2")
func import2WithReturnInt() -> Int32
// CHECK: declare {{.*}} void @"$s6Extern16import3TakingIntyys5Int32VF"(i32) [[EA3:#[0-9]+]]
@_extern(wasm, module: "m0", name: "import3")
func import3TakingInt(_: Int32)
func test() {
import1()
_ = import2WithReturnInt()
import3TakingInt(0)
}
test()
// CHECK: attributes [[EA1]] = {{{.*}} "wasm-import-module"="m0" "wasm-import-name"="import1" {{.*}}}
// CHECK: attributes [[EA2]] = {{{.*}} "wasm-import-module"="m0" "wasm-import-name"="import2" {{.*}}}
// CHECK: attributes [[EA3]] = {{{.*}} "wasm-import-module"="m0" "wasm-import-name"="import3" {{.*}}}