org.jetbrains.jet.j2k.ast.CallChainExpression.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

class CallChainExpression(val expression: Expression, val identifier: Expression) : Expression() {
    override fun isNullable(): Boolean {
        if (!expression.isEmpty() && expression.isNullable()) return true
        return identifier.isNullable()
    }

    override fun toKotlin(): String {
        if (!expression.isEmpty()) {
            return expression.toKotlin() + (if (expression.isNullable()) "?." else ".") + identifier.toKotlin()
        }

        return identifier.toKotlin()
    }
}