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Merge kotlinx-coroutines-core and kotlinx-coroutines-jdk8 modules (Ko…
…tlin#3415) * Configure source sets and compilations for module merger * Programmatically split the structure of compilation for the sake of separate compilation and dependencies * Add new integration test * Merge ABI signatures * Exclude jdk8 from animal sniffer Fixes Kotlin#3268
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integration-testing/src/jvmCoreTest/kotlin/Jdk8InCoreIntegration.kt
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| /* | ||
| * Copyright 2016-2022 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license. | ||
| */ | ||
| package kotlinx.coroutines | ||
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| import kotlinx.coroutines.future.* | ||
| import org.junit.Test | ||
| import kotlin.test.* | ||
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| /* | ||
| * Integration test that ensures signatures from both the jdk8 and the core source sets of the kotlinx-coroutines-core subproject are used. | ||
| */ | ||
| class Jdk8InCoreIntegration { | ||
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| @Test | ||
| fun testFuture() = runBlocking<Unit> { | ||
| val future = future { yield(); 42 } | ||
| future.whenComplete { r, _ -> assertEquals(42, r) } | ||
| assertEquals(42, future.await()) | ||
| } | ||
| } |
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| # Module kotlinx-coroutines-jdk8 | ||
| # Stub module | ||
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| Integration with JDK8 [CompletableFuture] (Android API level 24). | ||
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| Coroutine builders: | ||
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| | **Name** | **Result** | **Scope** | **Description** | ||
| | -------- | ------------------- | ---------------- | --------------- | ||
| | [future] | [CompletableFuture] | [CoroutineScope] | Returns a single value with the future result | ||
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| Extension functions: | ||
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| | **Name** | **Description** | ||
| | -------- | --------------- | ||
| | [CompletionStage.await][java.util.concurrent.CompletionStage.await] | Awaits for completion of the completion stage | ||
| | [CompletionStage.asDeferred][java.util.concurrent.CompletionStage.asDeferred] | Converts completion stage to an instance of [Deferred] | ||
| | [Deferred.asCompletableFuture][kotlinx.coroutines.Deferred.asCompletableFuture] | Converts a deferred value to the future | ||
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| ## Example | ||
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| Given the following functions defined in some Java API: | ||
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| ```java | ||
| public CompletableFuture<Image> loadImageAsync(String name); // starts async image loading | ||
| public Image combineImages(Image image1, Image image2); // synchronously combines two images using some algorithm | ||
| ``` | ||
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| We can consume this API from Kotlin coroutine to load two images and combine then asynchronously. | ||
| The resulting function returns `CompletableFuture<Image>` for ease of use back from Java. | ||
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| ```kotlin | ||
| fun combineImagesAsync(name1: String, name2: String): CompletableFuture<Image> = future { | ||
| val future1 = loadImageAsync(name1) // start loading first image | ||
| val future2 = loadImageAsync(name2) // start loading second image | ||
| combineImages(future1.await(), future2.await()) // wait for both, combine, and return result | ||
| } | ||
| ``` | ||
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| Note that this module should be used only for integration with existing Java APIs based on `CompletableFuture`. | ||
| Writing pure-Kotlin code that uses `CompletableFuture` is highly not recommended, since the resulting APIs based | ||
| on the futures are quite error-prone. See the discussion on | ||
| [Asynchronous Programming Styles](https://github.com/Kotlin/KEEP/blob/master/proposals/coroutines.md#asynchronous-programming-styles) | ||
| for details on general problems pertaining to any future-based API and keep in mind that `CompletableFuture` exposes | ||
| a _blocking_ method | ||
| [get](https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/Future.html#get--) | ||
| that makes it especially bad choice for coroutine-based Kotlin code. | ||
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| # Package kotlinx.coroutines.future | ||
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| Integration with JDK8 [CompletableFuture] (Android API level 24). | ||
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| [CompletableFuture]: https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/CompletableFuture.html | ||
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| <!--- MODULE kotlinx-coroutines-core --> | ||
| <!--- INDEX kotlinx.coroutines --> | ||
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| [CoroutineScope]: https://kotlinlang.org/api/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines/-coroutine-scope/index.html | ||
| [Deferred]: https://kotlinlang.org/api/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines/-deferred/index.html | ||
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| <!--- MODULE kotlinx-coroutines-jdk8 --> | ||
| <!--- INDEX kotlinx.coroutines.future --> | ||
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| [future]: https://kotlinlang.org/api/kotlinx.coroutines/kotlinx-coroutines-jdk8/kotlinx.coroutines.future/future.html | ||
| [java.util.concurrent.CompletionStage.await]: https://kotlinlang.org/api/kotlinx.coroutines/kotlinx-coroutines-jdk8/kotlinx.coroutines.future/await.html | ||
| [java.util.concurrent.CompletionStage.asDeferred]: https://kotlinlang.org/api/kotlinx.coroutines/kotlinx-coroutines-jdk8/kotlinx.coroutines.future/as-deferred.html | ||
| [kotlinx.coroutines.Deferred.asCompletableFuture]: https://kotlinlang.org/api/kotlinx.coroutines/kotlinx-coroutines-jdk8/kotlinx.coroutines.future/as-completable-future.html | ||
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| <!--- END --> | ||
| Stub module for backwards compatibility. Since 1.7.0, this module was merged with core. |
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integration/kotlinx-coroutines-jdk8/api/kotlinx-coroutines-jdk8.api
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| public final class kotlinx/coroutines/future/FutureKt { | ||
| public static final fun asCompletableFuture (Lkotlinx/coroutines/Deferred;)Ljava/util/concurrent/CompletableFuture; | ||
| public static final fun asCompletableFuture (Lkotlinx/coroutines/Job;)Ljava/util/concurrent/CompletableFuture; | ||
| public static final fun asDeferred (Ljava/util/concurrent/CompletionStage;)Lkotlinx/coroutines/Deferred; | ||
| public static final fun await (Ljava/util/concurrent/CompletionStage;Lkotlin/coroutines/Continuation;)Ljava/lang/Object; | ||
| public static final fun future (Lkotlinx/coroutines/CoroutineScope;Lkotlin/coroutines/CoroutineContext;Lkotlinx/coroutines/CoroutineStart;Lkotlin/jvm/functions/Function2;)Ljava/util/concurrent/CompletableFuture; | ||
| public static synthetic fun future$default (Lkotlinx/coroutines/CoroutineScope;Lkotlin/coroutines/CoroutineContext;Lkotlinx/coroutines/CoroutineStart;Lkotlin/jvm/functions/Function2;ILjava/lang/Object;)Ljava/util/concurrent/CompletableFuture; | ||
| } | ||
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| public final class kotlinx/coroutines/stream/StreamKt { | ||
| public static final fun consumeAsFlow (Ljava/util/stream/Stream;)Lkotlinx/coroutines/flow/Flow; | ||
| } | ||
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| public final class kotlinx/coroutines/time/TimeKt { | ||
| public static final fun debounce (Lkotlinx/coroutines/flow/Flow;Ljava/time/Duration;)Lkotlinx/coroutines/flow/Flow; | ||
| public static final fun delay (Ljava/time/Duration;Lkotlin/coroutines/Continuation;)Ljava/lang/Object; | ||
| public static final fun onTimeout (Lkotlinx/coroutines/selects/SelectBuilder;Ljava/time/Duration;Lkotlin/jvm/functions/Function1;)V | ||
| public static final fun sample (Lkotlinx/coroutines/flow/Flow;Ljava/time/Duration;)Lkotlinx/coroutines/flow/Flow; | ||
| public static final fun withTimeout (Ljava/time/Duration;Lkotlin/jvm/functions/Function2;Lkotlin/coroutines/Continuation;)Ljava/lang/Object; | ||
| public static final fun withTimeoutOrNull (Ljava/time/Duration;Lkotlin/jvm/functions/Function2;Lkotlin/coroutines/Continuation;)Ljava/lang/Object; | ||
| } | ||
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...ferredUnhandledCompletionExceptionTest.kt → ...ferredUnhandledCompletionExceptionTest.kt
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