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leemorgan/arrayExtension.swift

Created August 16, 2015 21:37
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Array extension where Element: Int
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arrayExtension.swift
extension Array where Element: Int {
func foo() {
}
}
var anArray = [Int]()
anArray.foo() // '[Int]' does not have a member named 'foo'
@leemorgan
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Ok. So this works...
It appears 'where' can only mark conformance to a protocol, and not that Element is of a certain type.

    extension Array where Element: IntegerType {
        func foo() {
        }
    }

    var anArray = [Int]()
    anArray.foo()

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