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Foundation/Unit: add {m,u,p,n}second units to UnitDuration #4708

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Merged
merged 1 commit into from
Mar 30, 2023
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Foundation/Unit: add {m,u,p,n}second units to UnitDuration #4708

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32 changes: 32 additions & 0 deletions Sources/Foundation/Unit.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -627,12 +627,20 @@ public final class UnitDuration : Dimension {
*/

private struct Symbol {
static let picoseconds = "ps"
static let nanoseconds = "ns"
static let microseconds = "µs"
static let milliseconds = "ms"
static let seconds = "s"
static let minutes = "m"
static let hours = "h"
}

private struct Coefficient {
static let picoseconds = 1e-12
static let nanoseconds = 1e-9
static let microseconds = 1e-6
static let milliseconds = 1e-3
static let seconds = 1.0
static let minutes = 60.0
static let hours = 3600.0
Expand All @@ -642,6 +650,30 @@ public final class UnitDuration : Dimension {
self.init(symbol: symbol, converter: UnitConverterLinear(coefficient: coefficient))
}

public class var picoseconds: UnitDuration {
get {
return UnitDuration(symbol: Symbol.picoseconds, coefficient: Coefficient.picoseconds)
}
}

public class var nanoseconds: UnitDuration {
get {
return UnitDuration(symbol: Symbol.nanoseconds, coefficient: Coefficient.nanoseconds)
}
}

public class var microseconds: UnitDuration {
get {
return UnitDuration(symbol: Symbol.microseconds, coefficient: Coefficient.microseconds)
}
}

public class var milliseconds: UnitDuration {
get {
return UnitDuration(symbol: Symbol.milliseconds, coefficient: Coefficient.milliseconds)
}
}

public class var seconds: UnitDuration {
get {
return UnitDuration(symbol: Symbol.seconds, coefficient: Coefficient.seconds)
Expand Down