org.jetbrains.jet.j2k.ast.ArrayWithoutInitializationExpression.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.ArrayType
import org.jetbrains.jet.j2k.ast.types.Type
import org.jetbrains.jet.j2k.ast.types.PrimitiveType

open class ArrayWithoutInitializationExpression(val `type`: Type, val expressions: List) : Expression() {
    override fun toKotlin(): String {
        if (`type` is ArrayType) {
            return constructInnerType(`type`, expressions)
        }

        return getConstructorName(`type`, expressions.size() != 0)
    }

    private fun constructInnerType(hostType: ArrayType, expressions: List): String {
        if (expressions.size() == 1) {
            return oneDim(hostType, expressions[0])
        }

        val innerType = hostType.elementType
        if (expressions.size() > 1 && innerType is ArrayType) {
            return oneDim(hostType, expressions[0], "{" + constructInnerType(innerType, expressions.subList(1, expressions.size())) + "}")
        }

        return getConstructorName(hostType, expressions.size() != 0)
    }

    class object {
        private open fun oneDim(`type`: Type, size: Expression): String {
            return oneDim(`type`, size, "")
        }

        private open fun oneDim(`type`: Type, size: Expression, init: String): String {
            return getConstructorName(`type`, !init.isEmpty()) + "(" + size.toKotlin() + init.withPrefix(", ") + ")"
        }

        private open fun getConstructorName(`type`: Type, hasInit: Boolean): String {
            return if (`type` is ArrayType)
                when (`type`.elementType) {
                    is PrimitiveType ->
                        `type`.convertedToNotNull().toKotlin()
                    is ArrayType ->
                        if (hasInit)
                            `type`.convertedToNotNull().toKotlin()
                        else
                            "arrayOfNulls<" + `type`.elementType.toKotlin() + ">"
                    else ->
                        "arrayOfNulls<" + `type`.elementType.toKotlin() + ">"
                }
            else
                `type`.convertedToNotNull().toKotlin()
        }
    }
}