Created
July 12, 2017 13:53
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将来的にこういうのができるようになるっぽい？(任意の列挙子を全網羅の対象から外す) #swift #CodePiece
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| enum Enum { | |
| case a | |
| case b | |
| @_downgrade_exhaustivity_check | |
| case c | |
| } | |
| // Compile: OK (warning) | |
| switch Enum.a { | |
| case .a: break | |
| case .b: break | |
| // case .c: break // not need | |
| } |
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https://github.com/apple/swift/blob/b115ae528679ddc953fb2f33ce4f1fb56e8f2502/test/stmt/nonexhaustive_switch_stmt_editor.swift#L8-L29