Cleanup

core/common/src/DateTimePeriod.kt

@@ -13,6 +13,7 @@ import kotlinx.datetime.serializers.DateTimePeriodComponentSerializer
 import kotlin.math.*
 import kotlin.time.Duration
 import kotlinx.serialization.Serializable
+import kotlin.text.toLong
 
 /**
  * A difference between two [instants][Instant], decomposed into date and time components.
@@ -448,7 +449,8 @@ public class DatePeriod internal constructor(
      * (like "yearly" or "quarterly"), please consider using a multiple of [DateTimeUnit.DateBased] instead.
      * For example, instead of `DatePeriod(months = 6)`, one can use `DateTimeUnit.MONTH * 6`.
      *
-     * @throws IllegalArgumentException if the total number of months in [years] and [months] overflows an [Int].
+     * @throws IllegalArgumentException if the total number of years
+     * (together with full years in [months]) overflows an [Int].
      * @sample kotlinx.datetime.test.samples.DatePeriodSamples.construction
      */
     public constructor(years: Int = 0, months: Int = 0, days: Int = 0): this(totalMonths(years, months), days)
@@ -499,7 +501,11 @@ private class DateTimePeriodImpl(
     override val totalNanoseconds: Long,
 ) : DateTimePeriod()
 
-private fun totalMonths(years: Int, months: Int): Long = years.toLong() * 12 + months.toLong()
+private fun totalMonths(years: Int, months: Int): Long = (years.toLong() * 12 + months.toLong()).also {
+    require(it / 12 in Int.MIN_VALUE..Int.MAX_VALUE) {
+        "The total number of years in $years years and $months months overflows an Int"
+    }
+}
 
 private fun totalNanoseconds(hours: Int, minutes: Int, seconds: Int, nanoseconds: Long): Long {
     val totalMinutes: Long = hours.toLong() * 60 + minutes
@@ -536,9 +542,10 @@ internal fun buildDateTimePeriod(totalMonths: Long = 0, days: Int = 0, totalNano
  * (like "yearly" or "quarterly"), please consider using a multiple of [DateTimeUnit] instead.
  * For example, instead of `DateTimePeriod(months = 6)`, one can use `DateTimeUnit.MONTH * 6`.
  *
- * @throws IllegalArgumentException if the total number of months in [years] and [months] overflows an [Int].
- * @throws IllegalArgumentException if the total number of months in [hours], [minutes], [seconds] and [nanoseconds]
- * overflows a [Long].
+ * @throws IllegalArgumentException if the total number of years
+ * (together with full years in [months]) overflows an [Int].
+ * @throws IllegalArgumentException if the total number of nanoseconds in
+ * [hours], [minutes], [seconds] and [nanoseconds] overflows a [Long].
  * @sample kotlinx.datetime.test.samples.DateTimePeriodSamples.constructorFunction
  */
 public fun DateTimePeriod(

core/common/test/DateTimePeriodTest.kt

@@ -114,7 +114,7 @@ class DateTimePeriodTest {
 
         assertFailsWith<IllegalArgumentException> { DateTimePeriod.parse("P") }
 
-        // overflow of `Long.MAX_VALUE` months
+        // overflow of `Int.MAX_VALUE` years
         assertFailsWith<IllegalArgumentException> { DateTimePeriod.parse("P768614336404564651Y") }
         assertFailsWith<IllegalArgumentException> { DateTimePeriod.parse("P1Y9223372036854775805M") }
 

core/common/test/InstantTest.kt

@@ -11,6 +11,7 @@ import kotlinx.datetime.internal.*
 import kotlin.random.*
 import kotlin.test.*
 import kotlin.time.*
+import kotlin.time.Duration.Companion.days
 import kotlin.time.Duration.Companion.hours
 import kotlin.time.Duration.Companion.milliseconds
 import kotlin.time.Duration.Companion.nanoseconds
@@ -268,9 +269,8 @@ class InstantTest {
         val offset3 = instant3.offsetIn(zone)
         assertEquals(offset1, offset3)
 
-        // TODO: fails on JS
-        // // without the minus, this test fails on JVM
-        // (Instant.MAX - (2 * 365).days).offsetIn(zone)
+        // without the minus, this test fails on JVM
+        (Instant.MAX - (2 * 365).days).offsetIn(zone)
     }
 
     @Test
@@ -313,7 +313,9 @@ class InstantTest {
                 val diff2 = date1.periodUntil(date2)
 
                 if (diff1 != diff2)
-                    println("start: $instant1, end: $instant2, diff by instants: $diff1, diff by dates: $diff2")
+                    throw AssertionError(
+                        "start: $instant1, end: $instant2, diff by instants: $diff1, diff by dates: $diff2"
+                    )
             }
         }
     }

core/commonJs/src/PlatformSpecifics.kt

@@ -12,10 +12,10 @@ public expect interface InteropInterface
 
 @OptIn(ExperimentalMultiplatform::class)
 @Retention(AnnotationRetention.BINARY)
-@Target(AnnotationTarget.CLASS, AnnotationTarget.FILE)
+@Target(AnnotationTarget.FILE)
 @OptionalExpectation
 public expect annotation class JsNonModule()
 
 @Retention(AnnotationRetention.BINARY)
-@Target(AnnotationTarget.CLASS, AnnotationTarget.FILE)
+@Target(AnnotationTarget.FILE)
 public expect annotation class JsModule(val import: String)

core/commonJs/src/internal/Platform.kt

@@ -76,7 +76,6 @@ private val tzdb: Result<TimeZoneDatabase?> = runCatching {
             (unpackBase60(it) * SECONDS_PER_MINUTE * MILLIS_PER_ONE).roundToLong() / // minutes to milliseconds
                     MILLIS_PER_ONE // but we only need seconds
         }
-        println("Zone ${components[0]}: $offsets with ${components[2]} raw data")
         zones[components[0]] = TimeZoneRules(
             transitionEpochSeconds = lengthsOfPeriodsWithOffsets.partialSums().take<Long>(indices.size - 1),
             offsets = indices.map { UtcOffset(null, null, -(offsets[it] * 60).roundToInt()) },

core/commonJs/test/JsJodaTimezoneTest.kt

@@ -10,6 +10,8 @@ import kotlin.math.roundToInt
 import kotlin.test.*
 import kotlin.time.Duration.Companion.milliseconds
 import kotlin.time.Duration.Companion.seconds
+import kotlinx.datetime.test.JSJoda.Instant as jtInstant
+import kotlinx.datetime.test.JSJoda.ZoneId as jtZoneId
 
 class JsJodaTimezoneTest {
     @Test
@@ -25,33 +27,35 @@ class JsJodaTimezoneTest {
     fun iterateOverAllTimezones() {
         for (id in TimeZone.availableZoneIds) {
             val rules = rulesForId(id) ?: throw AssertionError("No rules for $id")
-            val jodaZone = kotlinx.datetime.test.JSJoda.ZoneId.of(id)
-            assertNull(rules.recurringZoneRules)
+            val jodaZone = jtZoneId.of(id)
+            assertNull(rules.recurringZoneRules) // js-joda doesn't expose recurring rules
             fun checkAtInstant(instant: Instant) {
-                val jodaInstant = kotlinx.datetime.test.JSJoda.Instant.ofEpochMilli(instant.toEpochMilliseconds().toDouble())
-                val zdt = jodaInstant.atZone(jodaZone)
                 val offset = rules.infoAtInstant(instant)
                 val ourLdt = instant.toLocalDateTime(offset)
-                val theirLdt = LocalDateTime(
-                    zdt.year(),
-                    zdt.monthValue(),
-                    zdt.dayOfMonth(),
-                    zdt.hour(),
-                    zdt.minute(),
-                    zdt.second(),
-                    zdt.nano().roundToInt()
-                )
-                if ((ourLdt.toInstant(TimeZone.UTC) - theirLdt.toInstant(TimeZone.UTC)).absoluteValue > 1.seconds) {
-                    // It seems that sometimes, js-joda interprets its data incorrectly by at most one second,
-                    // and we don't want to replicate that.
-                    // Example: America/Noronha at 1914-01-01T02:09:39.998Z:
-                    // - Computed 1913-12-31T23:59:59.998 with offset -02:09:40
-                    // - 1914-01-01T00:00:00.998-02:09:39[America/Noronha] is js-joda's interpretation
-                    // The raw data representing the offset is `29.E`, which is `2 * 60 + 9 + (ord 'E' - 29) / 60`,
-                    // and `ord 'E'` is 69, so the offset is -2:09:40.
-                    // Thus, we allow a difference of 1 second.
-                    throw AssertionError("Failed for $id at $instant: computed $ourLdt with offset $offset, but $zdt is correct")
+                val zdt = jtInstant.ofEpochMilli(instant.toEpochMilliseconds().toDouble()).atZone(jodaZone)
+                val theirLdt = with(zdt) {
+                    LocalDateTime(
+                        year(),
+                        monthValue(),
+                        dayOfMonth(),
+                        hour(),
+                        minute(),
+                        second(),
+                        nano().roundToInt()
+                    )
                 }
+                // It seems that sometimes, js-joda interprets its data incorrectly by at most one second,
+                // and we don't want to replicate that.
+                // Example: America/Noronha at 1914-01-01T02:09:39.998Z:
+                // - Computed 1913-12-31T23:59:59.998 with offset -02:09:40
+                // - 1914-01-01T00:00:00.998-02:09:39[America/Noronha] is js-joda's interpretation
+                // The raw data representing the offset is `29.E`, which is `2 * 60 + 9 + (ord 'E' - 29) / 60`,
+                // and `ord 'E'` is 69, so the offset is -2:09:40.
+                // Thus, we allow a difference of 1 second.
+                assertTrue(
+                    (ourLdt.toInstant(TimeZone.UTC) - theirLdt.toInstant(TimeZone.UTC)).absoluteValue <= 1.seconds,
+                    "Failed for $id at $instant: computed $ourLdt with offset $offset, but $zdt is correct"
+                )
             }
             fun checkTransition(instant: Instant) {
                 checkAtInstant(instant - 2.milliseconds)

core/commonKotlin/src/Instant.kt

@@ -242,12 +242,12 @@ public actual fun Instant.periodUntil(other: Instant, timeZone: TimeZone): DateT
     val otherLdt = other.toZonedDateTimeFailing(timeZone)
 
     val months = thisLdt.until(otherLdt, DateTimeUnit.MONTH) // `until` on dates never fails
-    thisLdt = thisLdt.plus(months.toLong(), DateTimeUnit.MONTH) // won't throw: thisLdt + months <= otherLdt, which is known to be valid
-    val days = thisLdt.until(otherLdt, DateTimeUnit.DAY).toInt() // `until` on dates never fails
-    thisLdt = thisLdt.plus(days.toLong(), DateTimeUnit.DAY) // won't throw: thisLdt + days <= otherLdt
+    thisLdt = thisLdt.plus(months, DateTimeUnit.MONTH) // won't throw: thisLdt + months <= otherLdt, which is known to be valid
+    val days = thisLdt.until(otherLdt, DateTimeUnit.DAY) // `until` on dates never fails
+    thisLdt = thisLdt.plus(days, DateTimeUnit.DAY) // won't throw: thisLdt + days <= otherLdt
     val nanoseconds = thisLdt.until(otherLdt, DateTimeUnit.NANOSECOND) // |otherLdt - thisLdt| < 24h
 
-    return buildDateTimePeriod(months, days, nanoseconds)
+    return buildDateTimePeriod(months, days.toInt(), nanoseconds)
 }
 
 public actual fun Instant.until(other: Instant, unit: DateTimeUnit, timeZone: TimeZone): Long =

core/commonKotlin/src/internal/Platform.kt

@@ -8,7 +8,6 @@ package kotlinx.datetime.internal
 import kotlinx.datetime.Instant
 import kotlinx.datetime.TimeZone
 
-// RegionTimeZone(systemTzdb.rulesForId(zoneId), zoneId)
 internal expect fun timeZoneById(zoneId: String): TimeZone
 
 internal expect fun getAvailableZoneIds(): Set<String>

js-without-timezones/build.gradle.kts

@@ -8,27 +8,12 @@ plugins {
     id("org.jetbrains.kotlinx.kover")
 }
 
-val mainJavaToolchainVersion: String by project
-
-java {
-    toolchain { languageVersion.set(JavaLanguageVersion.of(mainJavaToolchainVersion)) }
-}
-
 kotlin {
-
     js {
         nodejs {
         }
-        compilations.all {
-            kotlinOptions {
-                sourceMap = true
-                moduleKind = "umd"
-                metaInfo = true
-            }
-        }
     }
 
-
     wasmJs {
         nodejs {
         }
@@ -42,12 +27,6 @@ kotlin {
         resources.srcDir("$targetName/${suffix?.let { it + "Resources" } ?: "resources"}")
     }
 
-    targets.withType<org.jetbrains.kotlin.gradle.plugin.mpp.KotlinNativeTarget> {
-        compilations["test"].kotlinOptions {
-            freeCompilerArgs += listOf("-trw")
-        }
-    }
-
     sourceSets {
         commonMain {
             dependencies {

license/README.md

@@ -6,23 +6,19 @@ may apply:
     - Origin: implementation of date/time calculations is based on ThreeTen backport project.
     - License: BSD 3-Clause ([license/thirdparty/threetenbp_license.txt][threetenbp])
 
-- Path: `core/nativeMain/src`
+- Path: `core/commonKotlin/src`
     - Origin: implementation of date/time entities is based on ThreeTen backport project.
     - License: BSD 3-Clause ([license/thirdparty/threetenbp_license.txt][threetenbp])
 
-- Path: `core/nativeTest/src`
+- Path: `core/commonKotlin/src`
     - Origin: Derived from tests of ThreeTen backport project
     - License: BSD 3-Clause ([license/thirdparty/threetenbp_license.txt][threetenbp])
 
 - Path: `core/commonTest/src`
     - Origin: Some tests are derived from tests of ThreeTen backport project
     - License: BSD 3-Clause ([license/thirdparty/threetenbp_license.txt][threetenbp])
 
-- Path: `thirdparty/date`
-    - Origin: https://github.com/HowardHinnant/date library
-    - License: MIT ([license/thirdparty/cppdate_license.txt](thirdparty/cppdate_license.txt))
-
-- Path: `core/nativeMain/cinterop/public/windows_zones.hpp`
+- Path: `core/windows/src/internal/WindowsZoneNames.kt`
     - Origin: time zone name mappings for Windows are generated from
       https://raw.githubusercontent.com/unicode-org/cldr/master/common/supplemental/windowsZones.xml
     - License: Unicode ([license/thirdparty/unicode_license.txt](thirdparty/unicode_license.txt))
@@ -31,4 +27,8 @@ may apply:
     - Origin: implementation is based on the bionic project.
     - License: BSD ([license/thirdparty/bionic_license.txt](thirdparty/bionic_license.txt))
 
+- Path: `core/commonJs/src`
+    - Origin: implementation accesses the internals of js-joda.
+    - License: BSD ([license/thirdparty/js-joda_license.txt](thirdparty/js-joda_license.txt))
+
 [threetenbp]: thirdparty/threetenbp_license.txt