/*
 * Copyright 2010-2016 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

import com.intellij.psi.PsiElement
import com.intellij.util.containers.MultiMap
import org.jetbrains.kotlin.config.LanguageVersionSettings
import org.jetbrains.kotlin.container.DefaultImplementation
import org.jetbrains.kotlin.descriptors.*
import org.jetbrains.kotlin.diagnostics.DiagnosticFactory1
import org.jetbrains.kotlin.diagnostics.Errors
import org.jetbrains.kotlin.diagnostics.reportOnDeclaration
import org.jetbrains.kotlin.idea.MainFunctionDetector
import org.jetbrains.kotlin.incremental.components.NoLookupLocation
import org.jetbrains.kotlin.name.FqNameUnsafe
import org.jetbrains.kotlin.name.Name
import org.jetbrains.kotlin.resolve.descriptorUtil.platform

import org.jetbrains.kotlin.resolve.scopes.MemberScope
import java.util.*

@DefaultImplementation(impl = ConflictingOverloadsDispatcher.Default::class)
interface ConflictingOverloadsDispatcher {
    fun getDiagnostic(
        languageVersionSettings: LanguageVersionSettings,
        declaration: DeclarationDescriptor,
        redeclarations: Collection<DeclarationDescriptor>
    ): DiagnosticFactory1<PsiElement, Collection<DeclarationDescriptor>>?

    object Default : ConflictingOverloadsDispatcher {
        override fun getDiagnostic(
            languageVersionSettings: LanguageVersionSettings,
            declaration: DeclarationDescriptor,
            redeclarations: Collection<DeclarationDescriptor>
        ): DiagnosticFactory1<PsiElement, Collection<DeclarationDescriptor>>? {
            return when (declaration) {
