Swiftの構文で知りたいことがあったのでSwiftの公式BNFを探したら、存在しないのね。 https://github.com/swiftlang/swift/issues/50123 (edited)

[SR-7581] Formal BNF (grammar) of Swift is unavailable. · Issue #5...

Previous ID SR-7581 Radar None Original Reporter Vatsal Manot (JIRA User) Type Bug Additional Detail from JIRA Votes 1 Component/s Labels Bug Assignee None Priority Medium md5: b343afe0a51ee78356c9...