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February 29, 2016 13:29
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Optional assignment operator implementation. `foo ??= bar` will evaluate and assign bar to foo if and only if foo is nil. Equivalent to `||=` in Ruby and other languages.
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| infix operator ??= { | |
| associativity right | |
| precedence 90 | |
| assignment | |
| } | |
| func ??= <T>(inout variable: T?, expr: @autoclosure () -> T) { | |
| if variable == nil { | |
| variable = expr() | |
| } | |
| } |
Why isn't this change merged into the SwiftyUserDefaults project?
@semireg Because it's not User Defaults-specific, and although I like this operator, I don't want to add it to everyone's code in an unrelated project.
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Why isn't this change merged into the SwiftyUserDefaults project?