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Introduce erroneous operators ClockMark.minus/compareTo(ClockMark)

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To provide a better diagnostic message on their misuse.
This commit is contained in:
Ilya Gorbunov
2019-08-15 19:34:58 +03:00
parent ac07cb686b
commit fba22606e6
1 changed files with 14 additions and 0 deletions
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libraries/stdlib/src/kotlin/time/Clock.kt
+14
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@@ -71,6 +71,20 @@ public abstract class ClockMark {
public fun hasNotPassedNow(): Boolean = elapsedNow().isNegative()
}
@ExperimentalTime
@SinceKotlin("1.3")
@kotlin.internal.InlineOnly
@Deprecated("Subtracting one ClockMark from another is not a well defined operation because these clock marks could have been obtained from the different clocks.", level = DeprecationLevel.ERROR)
public inline operator fun ClockMark.minus(other: ClockMark): Duration = throw Error("Operation is disallowed.")
@ExperimentalTime
@SinceKotlin("1.3")
@kotlin.internal.InlineOnly
@Deprecated("Comparing one ClockMark to another is not a well defined operation because these clock marks could have been obtained from the different clocks.", level = DeprecationLevel.ERROR)
public inline operator fun ClockMark.compareTo(other: ClockMark): Int = throw Error("Operation is disallowed.")
@ExperimentalTime
private class AdjustedClockMark(val mark: ClockMark, val adjustment: Duration) : ClockMark() {
override fun elapsedNow(): Duration = mark.elapsedNow() - adjustment