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Small durations are formatted with sub-second units KT-42851

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This commit is contained in:
Ilya Gorbunov
2021-06-29 04:40:18 +03:00
committed by Space
parent 150ce812f1
commit ae3d9cc3cd
3 changed files with 39 additions and 45 deletions
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libraries/stdlib/src/kotlin/time/Duration.kt
+22 -28
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@@ -692,19 +692,16 @@ public value class Duration internal constructor(private val rawValue: Long) : C
}
if (hasSeconds) {
if (length > 1) append(' ')
append(seconds)
if (nanoseconds != 0) {
append('.')
when {
(nanoseconds % 1_000_000 == 0) ->
append((nanoseconds / 1_000_000).toString().padStart(3, '0'))
(nanoseconds % 1_000 == 0) ->
append((nanoseconds / 1_000).toString().padStart(6, '0'))
else ->
append(nanoseconds.toString().padStart(9, '0'))
}
when {
seconds != 0 || hasDays || hasHours || hasMinutes ->
appendFractional(seconds, nanoseconds, "s")
nanoseconds >= 1_000_000 ->
appendFractional(nanoseconds / 1_000_000, nanoseconds % 1_000_000 * 1_000, "ms")
nanoseconds >= 1_000 ->
appendFractional(nanoseconds / 1_000, nanoseconds % 1_000 * 1_000_000, "us")
else ->
append(nanoseconds).append("ns")
}
append('s')
}
}
}
@@ -712,11 +709,18 @@ public value class Duration internal constructor(private val rawValue: Long) : C
}
}
private fun precision(value: Double): Int = when {
value < 1 -> 3
value < 10 -> 2
value < 100 -> 1
else -> 0
private fun StringBuilder.appendFractional(whole: Int, nanoFractional: Int, unit: String) {
append(whole)
if (nanoFractional != 0) {
append('.')
val nanoString = nanoFractional.toString().padStart(9, '0')
when {
nanoFractional % 1_000_000 == 0 -> appendRange(nanoString, 0, 3)
nanoFractional % 1_000 == 0 -> appendRange(nanoString, 0, 6)
else -> append(nanoString)
}
}
append(unit)
}
/**
@@ -771,17 +775,7 @@ public value class Duration internal constructor(private val rawValue: Long) : C
append(minutes).append('M')
}
if (hasSeconds || (!hasHours && !hasMinutes)) {
append(seconds)
if (nanoseconds != 0) {
append('.')
val nss = nanoseconds.toString().padStart(9, '0')
when {
nanoseconds % 1_000_000 == 0 -> appendRange(nss, 0, 3)
nanoseconds % 1_000 == 0 -> appendRange(nss, 0, 6)
else -> append(nss)
}
}
append('S')
appendFractional(seconds, nanoseconds, "S")
}
}
}