Created
July 15, 2016 12:51
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F# forward pipe operator in Swift
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infix operator |> { precedence 95 associativity left } | |
infix operator <| { precedence 95 associativity right } | |
infix operator ?> { precedence 95 associativity left } | |
/// Forward pipe operator. | |
func |> <T, U>(arg: T, @noescape f: T -> U) -> U { | |
return f(arg) | |
} | |
/// Backward pipe operator. | |
func <| <T, U>(@noescape f: T -> U, arg: T) -> U { | |
return f(arg) | |
} | |
/// Forward pipe operator for optional argument. | |
func ?> <T, U>(arg: T?, @noescape f: T -> U) -> U? { | |
return arg.map(f) | |
} |
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