自前のDecoderにさっきのエクステンションを足してみたけど、とりあえず問題なさげ。

1:25 AM

新しくなる実装ではまだ試せてない。 https://github.com/apple/swift/pull/10667

Optionality updates to Codable API by itaiferber · Pull Request #10667 · apple/swift

What's in this pull request? As laid out in a proposed update to SE-0166 and SE-0167, there are optionality updates that we wanted to introduce to the Codable API. This implements the remainder of ...