001/*
002 * Copyright 2010-2013 JetBrains s.r.o.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package org.jetbrains.k2js.translate.context;
018
019import com.google.dart.compiler.backend.js.ast.JsExpression;
020import com.google.dart.compiler.backend.js.ast.JsName;
021import org.jetbrains.annotations.NotNull;
022
023public final class TemporaryConstVariable extends TemporaryVariable{
024    private boolean initialized = false;
025
026    public TemporaryConstVariable(@NotNull JsName variableName, @NotNull JsExpression assignmentExpression) {
027        super(variableName, assignmentExpression);
028    }
029
030    @NotNull
031    public JsExpression value() {
032        if (initialized) {
033            return reference();
034        }
035        initialized = true;
036        return assignmentExpression();
037    }
038}