org.jetbrains.jet.j2k.ast.Function.kt Maven / Gradle / Ivy

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/*
 * Copyright 2010-2013 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.jet.j2k.ast

import org.jetbrains.jet.j2k.ast.types.Type
import java.util.ArrayList
import org.jetbrains.jet.j2k.ast.types.isUnit
import org.jetbrains.jet.j2k.Converter

open class Function(
        val converter: Converter,
        val name: Identifier,
        comments: MemberComments,
        modifiers: Set,
        val `type`: Type,
        val typeParameterList: TypeParameterList,
        val params: Element,
        var block: Block?
) : Member(comments, modifiers) {

    private fun modifiersToKotlin(): String {
        val resultingModifiers = ArrayList()
        val isOverride = modifiers.contains(Modifier.OVERRIDE)
        if (isOverride) {
            resultingModifiers.add(Modifier.OVERRIDE)
        }

        val accessModifier = accessModifier()
        if (accessModifier != null && !isOverride) {
            resultingModifiers.add(accessModifier)
        }

        if (isAbstract()) {
            resultingModifiers.add(Modifier.ABSTRACT)
        }

        if (converter.settings.openByDefault &&
        !modifiers.contains(Modifier.ABSTRACT) &&
        !isOverride &&
        !modifiers.contains(Modifier.FINAL) &&
        !modifiers.contains(Modifier.PRIVATE)) {
            resultingModifiers.add(Modifier.OPEN)
        }

        if (modifiers.contains(Modifier.NOT_OPEN)) {
            resultingModifiers.remove(Modifier.OPEN)
        }

        return resultingModifiers.toKotlin()
    }

    private fun returnTypeToKotlin() = if (!`type`.isUnit()) " : " + `type`.toKotlin() + " " else " "

    override fun toKotlin(): String {
        return commentsToKotlin() +
        modifiersToKotlin() +
        "fun ${typeParameterList.toKotlin().withSuffix(" ")}${name.toKotlin()}" +
        "(${params.toKotlin()})" +
        returnTypeToKotlin() +
        typeParameterList.whereToKotlin() +
        block?.toKotlin()
    }
}