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.jet.cli.common.messages;
018
019import org.jetbrains.annotations.Nullable;
020
021public class CompilerMessageLocation {
022
023    public static final CompilerMessageLocation NO_LOCATION = new CompilerMessageLocation(null, -1, -1);
024
025    public static CompilerMessageLocation create(@Nullable String path, int line, int column) {
026        if (path == null) {
027            return NO_LOCATION;
028        }
029        return new CompilerMessageLocation(path, line, column);
030    }
031
032    private final String path;
033    private final int line;
034    private final int column;
035
036    private CompilerMessageLocation(@Nullable String path, int line, int column) {
037        this.path = path;
038        this.line = line;
039        this.column = column;
040    }
041
042    @Nullable
043    public String getPath() {
044        return path;
045    }
046
047    public int getLine() {
048        return line;
049    }
050
051    public int getColumn() {
052        return column;
053    }
054
055    @Override
056    public boolean equals(Object o) {
057        if (this == o) return true;
058        if (o == null || getClass() != o.getClass()) return false;
059
060        CompilerMessageLocation location = (CompilerMessageLocation) o;
061
062        if (column != location.column) return false;
063        if (line != location.line) return false;
064        if (path != null ? !path.equals(location.path) : location.path != null) return false;
065
066        return true;
067    }
068
069    @Override
070    public int hashCode() {
071        int result = path != null ? path.hashCode() : 0;
072        result = 31 * result + line;
073        result = 31 * result + column;
074        return result;
075    }
076}