Iceman

@swift-6.0.3 -swift-version 6

func foo(_: @MainActor () async throws -> ()) async throws { } func foo(_: () async throws -> ()) async throws { } struct S { func f() async throws { try await foo { @MainActor in print("") } } @MainActor func g() async throws { try await foo { print("") } } }

オーバーロードの解決もなんか変だ

exit status: 1 with

<stdin>:14:19: error: sending main actor-isolated value of type '() async -> ()' with later accesses to nonisolated context risks causing data races 12 | 13 | @MainActor func g() async throws { 14 | try await foo { | `- error: sending main actor-isolated value of type '() async -> ()' with later accesses to nonisolated context risks causing data races 15 | print("") 16 | }