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[SR-9032] Add ability to create ‘character' literals to compiler. #51535

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johnno1962 opened this issue Oct 18, 2018 · 1 comment
Open

[SR-9032] Add ability to create ‘character' literals to compiler. #51535

johnno1962 opened this issue Oct 18, 2018 · 1 comment
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@johnno1962
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compiler The Swift compiler in itself feature A feature request or implementation swift evolution proposal needed Flag → feature: A feature that warrants a Swift evolution proposal

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@johnno1962
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Previous ID SR-9032
Radar None
Original Reporter @johnno1962
Type New Feature
Additional Detail from JIRA
Votes 1
Component/s Compiler
Labels New Feature, LanguageFeatureRequest
Assignee @johnno1962
Priority Medium

md5: 82dd26a9f4af318193363fdfc65d9a9d

Issue Description:

It is sometimes useful to be able to express the ascii value of a character more conveniently than the existing UInt8(ascii: “a”) and now that the syntax for raw strings has taken a different direction it is suggested this be simply ‘a’ as it is in many other languages. These would be Character literals in the Swift sense, able to express any UNICODE extended grapheme cluster but if the cluster contains only a single code point it should be possible to express Swift’s integer types using this literal syntax. As examples:

let a: Int8 = ‘a’
let newline: Int8 = ‘\n’
@belkadan
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I know there's a long thread about this but I feel it's worth pointing out that we have this: it's UnicodeScalar.

let x: UnicodeScalar = "x"

The proposal here would be extending that to work for plain integers if the value is known to fit in the integer, I guess.

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
@johnno1962 johnno1962 mentioned this issue Oct 6, 2022
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@AnthonyLatsis AnthonyLatsis added swift evolution proposal needed Flag → feature: A feature that warrants a Swift evolution proposal and removed new feature labels Nov 11, 2022
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compiler The Swift compiler in itself feature A feature request or implementation swift evolution proposal needed Flag → feature: A feature that warrants a Swift evolution proposal
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Single Quoted Literals. johnno1962/swift
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@belkadan @johnno1962 @AnthonyLatsis