Mercurial > hg > truffle
view truffle/com.oracle.truffle.api/src/com/oracle/truffle/api/source/LineLocation.java @ 22157:dc83cc1f94f2
Using fully qualified imports
author | Jaroslav Tulach <jaroslav.tulach@oracle.com> |
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date | Wed, 16 Sep 2015 11:33:22 +0200 |
parents | b2d1c8ff592a |
children | 5573f12b94f8 |
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/* * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.oracle.truffle.api.source; /** * A specification for a location in guest language source, expressed as a line number in a specific * instance of {@link Source}, suitable for hash table keys with equality defined in terms of * content. */ public final class LineLocation implements Comparable<LineLocation> { private final Source source; private final int line; LineLocation(Source source, int line) { assert source != null; this.source = source; this.line = line; } public Source getSource() { return source; } /** * Gets the 1-based number of a line in the source. * * @return value from 1 to infinity */ public int getLineNumber() { return line; } public String getShortDescription() { return source.getShortName() + ":" + line; } @Override public String toString() { return "Line[" + getShortDescription() + "]"; } @Override public int hashCode() { final int prime = 31; int result = 1; result = prime * result + line; result = prime * result + source.getHashKey().hashCode(); return result; } @Override public boolean equals(Object obj) { if (this == obj) { return true; } if (obj == null) { return false; } if (!(obj instanceof LineLocation)) { return false; } LineLocation other = (LineLocation) obj; if (line != other.line) { return false; } return source.getHashKey().equals(other.source.getHashKey()); } @Override public int compareTo(LineLocation o) { final int sourceResult = this.getSource().getPath().compareTo(o.getSource().getPath()); if (sourceResult != 0) { return sourceResult; } return Integer.compare(this.getLineNumber(), o.getLineNumber()); } }