/*
 * 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.psi

import com.intellij.psi.impl.source.tree.LeafPsiElement
import org.jetbrains.kotlin.name.Name

interface ValueArgument {
    @IfNotParsed
    fun getArgumentExpression(): KtExpression?

    fun getArgumentName(): ValueArgumentName?

    fun isNamed(): Boolean

    fun asElement(): KtElement

    /* The '*' in something like foo(*arr) i.e. pass an array as a number of vararg arguments */
    fun getSpreadElement(): LeafPsiElement?

    /* The argument is placed externally to call element, e.g. in 'when' condition with subject: 'when (a) { in c -> }' */
    fun isExternal(): Boolean
}

interface FakePositionalValueArgumentForCallableReference : ValueArgument {
    val index: Int
}

interface FakeImplicitSpreadValueArgumentForCallableReference : ValueArgument {
    val expression: ValueArgument
}

interface LambdaArgument : ValueArgument {
    fun getLambdaExpression(): KtLambdaExpression?
}

interface ValueArgumentName {
    val asName: Name
    val referenceExpression: KtSimpleNameExpression?
}
