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/*
 * Copyright 2010-2015 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 org.jetbrains.kotlin.storage

import kotlin.reflect.KProperty

interface MemoizedFunctionToNotNull : Function1 {
    fun isComputed(key: P): Boolean
}

interface MemoizedFunctionToNullable : Function1 {
    fun isComputed(key: P): Boolean
}

interface NotNullLazyValue : Function0 {
    fun isComputed(): Boolean
    fun isComputing(): Boolean
}

interface NullableLazyValue : Function0 {
    fun isComputed(): Boolean
    fun isComputing(): Boolean
}

operator fun  NotNullLazyValue.getValue(_this: Any?, p: KProperty<*>): T = invoke()

operator fun  NullableLazyValue.getValue(_this: Any?, p: KProperty<*>): T? = invoke()