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reduce compile time of TimeInterval extension (14s -> 92ms)

This commit is contained in:
Ivan Smolin 2017-05-16 12:44:46 +03:00
parent 680e588e4d
commit d1e649c4ef
1 changed files with 11 additions and 4 deletions
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15
LeadKit/Sources/Extensions/TimeInterval/TimeInterval+DateComponents.swift
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@ -42,14 +42,21 @@ extension TimeInterval {
*/
public init(timeString: String, timeSeparator: String = ":", daySeparator: String = ".") {
let timeComponents = timeString.components(separatedBy: daySeparator)
let fullDays = Double(timeComponents.first ?? "") ?? 0
let timeValue = (timeComponents.last ?? "")
let dayComponent = timeComponents.first ?? ""
let fullDays = Double(dayComponent) ?? 0
let timeComponent = timeComponents.last ?? ""
let timeValue = timeComponent
.components(separatedBy: timeSeparator)
.reversed()
.enumerated()
.reduce(0) { interval, part in
interval + (Double(part.element) ?? 0) * pow(Double(TimeInterval.secondsInMinute), Double(part.offset))
.reduce(0.0) { interval, part in
let partElement = Double(part.element) ?? 0
return interval + partElement * pow(Double(TimeInterval.secondsInMinute), Double(part.offset))
}
self = (fullDays * Double(TimeInterval.secondsInDay)) + timeValue