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• 1.2.2
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• Annotations.kt

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commonMain.Annotations.kt Maven / Gradle / Ivy

/*
 * Copyright 2016-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
 */

package kotlinx.coroutines

import kotlinx.coroutines.flow.Flow

/**
 * Marks declarations that are still **experimental** in coroutines API, which means that the design of the
 * corresponding declarations has open issues which may (or may not) lead to their changes in the future.
 * Roughly speaking, there is a chance that those declarations will be deprecated in the near future or
 * the semantics of their behavior may change in some way that may break some code.
 */
@MustBeDocumented
@Retention(value = AnnotationRetention.BINARY)
@Experimental(level = Experimental.Level.WARNING)
public annotation class ExperimentalCoroutinesApi

/**
 * Marks all [Flow] declarations as a feature preview to indicate that [Flow] is still experimental and has a 'preview' status.
 *
 * Flow preview has **no** backward compatibility guarantees, including both binary and source compatibility.
 * Its API and semantics can and will be changed in next releases.
 *
 * Feature preview can be used to evaluate its real-world strengths and weaknesses, gather and provide feedback.
 * According to the feedback, [Flow] will be refined on its road to stabilization and promotion to a stable API.
 */
@MustBeDocumented
@Retention(value = AnnotationRetention.BINARY)
@Experimental(level = Experimental.Level.WARNING)
public annotation class FlowPreview

/**
 * Marks declarations that are **obsolete** in coroutines API, which means that the design of the corresponding
 * declarations has serious known flaws and they will be redesigned in the future.
 * Roughly speaking, these declarations will be deprecated in the future but there is no replacement for them yet,
 * so they cannot be deprecated right away.
 */
@MustBeDocumented
@Retention(value = AnnotationRetention.BINARY)
@Experimental(level = Experimental.Level.WARNING)
public annotation class ObsoleteCoroutinesApi

/**
 * Marks declarations that are **internal** in coroutines API, which means that should not be used outside of
 * `kotlinx.coroutines`, because their signatures and semantics will change between future releases without any
 * warnings and without providing any migration aids.
 */
@Retention(value = AnnotationRetention.BINARY)
@Experimental(level = Experimental.Level.ERROR)
public annotation class InternalCoroutinesApi