Provide conversions between Kotlin and Java time durations

2019-06-18 05:35:29 +03:00
parent d7252548fc
commit ff9d2744ce
2 changed files with 107 additions and 0 deletions
@@ -0,0 +1,35 @@
+/*
+ * Copyright 2010-2019 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+@file:Suppress("INVISIBLE_MEMBER", "INVISIBLE_REFERENCE")
+@file:JvmName("DurationConversionsJDK8Kt")
+@file:kotlin.jvm.JvmPackageName("kotlin.time.jdk8")
+package kotlin.time
+
+import java.time.*
+
+/**
+ * Converts [java.time.Duration][java.time.Duration] value to [kotlin.time.Duration][Duration] value.
+ *
+ * Durations less than 104 days are converted exactly, and durations greater than that can lose some precision
+ * due to rounding.
+ */
+@SinceKotlin("1.3")
+@ExperimentalTime
+@kotlin.internal.InlineOnly
+public inline fun java.time.Duration.toKotlinDuration(): Duration =
+    this.seconds.seconds + this.nano.nanoseconds
+
+
+/**
+ * Converts [kotlin.time.Duration][Duration] value to value [java.time.Duration][java.time.Duration].
+ *
+ * Durations greater than [Long.MAX_VALUE] seconds are cut to that value.
+ */
+@SinceKotlin("1.3")
+@ExperimentalTime
+@kotlin.internal.InlineOnly
+public inline fun Duration.toJavaDuration(): java.time.Duration =
+    toComponents { seconds, nanoseconds -> java.time.Duration.ofSeconds(seconds, nanoseconds.toLong()) }