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/*
 * Copyright 2010-2017 JetBrains s.r.o.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package kotlin.coroutines.experimental

/**
 * Interface representing a continuation after a suspension point that returns value of type `T`.
 */
@SinceKotlin("1.1")
public interface Continuation {
    /**
     * Context of the coroutine that corresponds to this continuation.
     */
    public val context: CoroutineContext

    /**
     * Resumes the execution of the corresponding coroutine passing [value] as the return value of the last suspension point.
     */
    public fun resume(value: T)

    /**
     * Resumes the execution of the corresponding coroutine so that the [exception] is re-thrown right after the
     * last suspension point.
     */
    public fun resumeWithException(exception: Throwable)
}

/**
 * Classes and interfaces marked with this annotation are restricted when used as receivers for extension
 * `suspend` functions. These `suspend` extensions can only invoke other member or extension `suspend` functions on this particular
 * receiver only and are restricted from calling arbitrary suspension functions.
 */
@SinceKotlin("1.1")
@Target(AnnotationTarget.CLASS)
@Retention(AnnotationRetention.BINARY)
public annotation class RestrictsSuspension