Created
June 29, 2016 15:59
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Swift coalescing assignment operator
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| infix operator ??= { | |
| associativity right | |
| precedence 90 | |
| assignment | |
| } | |
| func ??=<T>(inout optional: T?, @autoclosure defaultValue: () -> T?) { | |
| optional = optional ?? defaultValue() | |
| } |
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