Simple operators for character value comparisons. #71749
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@rintaro, there is a proposal mentioned in the opening comment. |
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Hi Apple,
After a long deliberation on swift-evolution I'd like to propose these operators and initialisers be added to the standard library to improve the ergonomics of working with the integer representation of character values. This has already be explored and benchmarked extensively on this PR to the
swift-syntaxproject which was merged some weeks ago. I've tried to pair it down to the absolute minimum so there shouldn't be anything too contentious in what remains. In summary you can compare aUInt8value to a double quoted single unicode code point string literal for equality, make this comparison in aswitch. There is also a new initialiser for all integer types from a unicode scalar and finally a new Array initialiser from the unicode scalars in a String.These operators use the existing language to improve the ergonomics of parser code without having to press into service single quotes and make changes to the compiler as has been previously proposed. PR to swift-evolution with the proposal to follow.
Resolves #SR-9032