Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: src/share/classes/com/sun/tools/javadoc/SourcePositionImpl.java
src/share/classes/com/sun/tools/javadoc/SourcePositionImpl.java
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| 1 /* | |
| 2 * Copyright 2001-2005 Sun Microsystems, Inc. All Rights Reserved. | |
| 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. Sun designates this | |
| 8 * particular file as subject to the "Classpath" exception as provided | |
| 9 * by Sun in the LICENSE file that accompanied this code. | |
| 10 * | |
| 11 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 * accompanied this code). | |
| 16 * | |
| 17 * You should have received a copy of the GNU General Public License version | |
| 18 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 * | |
| 21 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 22 * CA 95054 USA or visit www.sun.com if you need additional information or | |
| 23 * have any questions. | |
| 24 */ | |
| 25 | |
| 26 package com.sun.tools.javadoc; | |
| 27 | |
| 28 import com.sun.javadoc.SourcePosition; | |
| 29 import com.sun.tools.javac.util.Position; | |
| 30 | |
| 31 import java.io.File; | |
| 32 | |
| 33 /** | |
| 34 * A source position: filename, line number, and column number. | |
| 35 * | |
| 36 * @since J2SE1.4 | |
| 37 * @author Neal M Gafter | |
| 38 * @author Michael Van De Vanter (position representation changed to char offsets) | |
| 39 */ | |
| 40 class SourcePositionImpl implements SourcePosition { | |
| 41 String filename; | |
| 42 int position; | |
| 43 Position.LineMap lineMap; | |
| 44 | |
| 45 /** The source file. Returns null if no file information is | |
| 46 * available. */ | |
| 47 public File file() { | |
| 48 return (filename == null) ? null : new File(filename); | |
| 49 } | |
| 50 | |
| 51 /** The line in the source file. The first line is numbered 1; | |
| 52 * 0 means no line number information is available. */ | |
| 53 public int line() { | |
| 54 if (lineMap == null) { | |
| 55 return 0; | |
| 56 } else { | |
| 57 return lineMap.getLineNumber(position); | |
| 58 } | |
| 59 } | |
| 60 | |
| 61 /** The column in the source file. The first column is | |
| 62 * numbered 1; 0 means no column information is available. | |
| 63 * Columns count characters in the input stream; a tab | |
| 64 * advances the column number to the next 8-column tab stop. | |
| 65 */ | |
| 66 public int column() { | |
| 67 if (lineMap == null) { | |
| 68 return 0; | |
| 69 }else { | |
| 70 return lineMap.getColumnNumber(position); | |
| 71 } | |
| 72 } | |
| 73 | |
| 74 private SourcePositionImpl(String file, int position, | |
| 75 Position.LineMap lineMap) { | |
| 76 super(); | |
| 77 this.filename = file; | |
| 78 this.position = position; | |
| 79 this.lineMap = lineMap; | |
| 80 } | |
| 81 | |
| 82 public static SourcePosition make(String file, int pos, | |
| 83 Position.LineMap lineMap) { | |
| 84 if (file == null) return null; | |
| 85 return new SourcePositionImpl(file, pos, lineMap); | |
| 86 } | |
| 87 | |
| 88 public String toString() { | |
| 89 if (position == Position.NOPOS) | |
| 90 return filename; | |
| 91 else | |
| 92 return filename + ":" + line(); | |
| 93 } | |
| 94 } |
