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pixelrevision/Sequence+Walk.swift

Created December 5, 2017 22:15
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Sequence+Walk
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Sequence+Walk.swift
extension Sequence {
func walk(_ childSelector: (Element) -> [Element], handler: (Element) -> Void) {
for item in self {
handler(item)
let children = childSelector(item)
if children.count > 0 {
children.walk(childSelector, handler: handler)
}
}
}
}
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