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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 org.jetbrains.kotlin.resolve.scopes

import org.jetbrains.kotlin.descriptors.ConstructorDescriptor
import org.jetbrains.kotlin.descriptors.FunctionDescriptor
import org.jetbrains.kotlin.descriptors.PropertyDescriptor
import org.jetbrains.kotlin.incremental.components.LookupLocation
import org.jetbrains.kotlin.name.Name
import org.jetbrains.kotlin.types.KotlinType


interface SyntheticScope {
    fun getSyntheticExtensionProperties(receiverTypes: Collection, name: Name, location: LookupLocation): Collection
    fun getSyntheticMemberFunctions(receiverTypes: Collection, name: Name, location: LookupLocation): Collection
    fun getSyntheticStaticFunctions(scope: ResolutionScope, name: Name, location: LookupLocation): Collection
    fun getSyntheticConstructors(scope: ResolutionScope, name: Name, location: LookupLocation): Collection

    fun getSyntheticExtensionProperties(receiverTypes: Collection): Collection
    fun getSyntheticMemberFunctions(receiverTypes: Collection): Collection
    fun getSyntheticStaticFunctions(scope: ResolutionScope): Collection
    fun getSyntheticConstructors(scope: ResolutionScope): Collection

    fun getSyntheticConstructor(constructor: ConstructorDescriptor): ConstructorDescriptor?
}

interface SyntheticScopes {
    val scopes: Collection

    object Empty : SyntheticScopes {
        override val scopes: Collection = emptyList()
    }
}


fun SyntheticScopes.collectSyntheticExtensionProperties(receiverTypes: Collection, name: Name, location: LookupLocation)
        = scopes.flatMap { it.getSyntheticExtensionProperties(receiverTypes, name, location) }

fun SyntheticScopes.collectSyntheticMemberFunctions(receiverTypes: Collection, name: Name, location: LookupLocation)
        = scopes.flatMap { it.getSyntheticMemberFunctions(receiverTypes, name, location) }

fun SyntheticScopes.collectSyntheticStaticFunctions(scope: ResolutionScope, name: Name, location: LookupLocation)
        = scopes.flatMap { it.getSyntheticStaticFunctions(scope, name, location) }

fun SyntheticScopes.collectSyntheticConstructors(scope: ResolutionScope, name: Name, location: LookupLocation)
        = scopes.flatMap { it.getSyntheticConstructors(scope, name, location) }

fun SyntheticScopes.collectSyntheticExtensionProperties(receiverTypes: Collection)
        = scopes.flatMap { it.getSyntheticExtensionProperties(receiverTypes) }

fun SyntheticScopes.collectSyntheticMemberFunctions(receiverTypes: Collection)
        = scopes.flatMap { it.getSyntheticMemberFunctions(receiverTypes) }

fun SyntheticScopes.collectSyntheticStaticFunctions(scope: ResolutionScope)
        = scopes.flatMap { it.getSyntheticStaticFunctions(scope) }

fun SyntheticScopes.collectSyntheticConstructors(scope: ResolutionScope)
        = scopes.flatMap { it.getSyntheticConstructors(scope) }

fun SyntheticScopes.collectSyntheticConstructors(constructor: ConstructorDescriptor)
        = scopes.mapNotNull { it.getSyntheticConstructor(constructor) }