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/*
* Copyright 2016-2017 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 kotlinx.coroutines.experimental.intrinsics
import kotlin.coroutines.experimental.Continuation
import kotlin.coroutines.experimental.intrinsics.COROUTINE_SUSPENDED
/**
* Starts coroutine without receiver and with result type [T].
* This function creates and start a new, fresh instance of suspendable computation every time it is invoked.
* If the coroutine never suspends, then its result is returned directly,
* otherwise it returns [COROUTINE_SUSPENDED] and the [completion] continuation is invoked when coroutine completes.
*
* @suppress **This is unstable API and it is subject to change.**
*/
@Suppress("PLATFORM_CLASS_MAPPED_TO_KOTLIN", "UNCHECKED_CAST")
public fun <T> (suspend () -> T).startCoroutineOrReturn(completion: Continuation<T>): Any? =
(this as kotlin.jvm.functions.Function1<Continuation<T>, Any?>).invoke(completion)