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.config;
018
019import com.intellij.openapi.util.text.StringUtil;
020import org.jetbrains.annotations.NotNull;
021import org.jetbrains.annotations.Nullable;
022
023public enum EcmaVersion {
024    v3, v5;
025
026    @NotNull
027    public static EcmaVersion fromString(@Nullable String target) {
028        return StringUtil.compareVersionNumbers(target, "v5") >= 0 ? v5 : v3;
029    }
030
031    @NotNull
032    public static EcmaVersion defaultVersion() {
033        return v3;
034    }
035}