Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: src/share/classes/com/sun/source/tree/LineMap.java
src/share/classes/com/sun/source/tree/LineMap.java
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- 2eb010b6cb22
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| 1 /* | |
| 2 * Copyright (c) 2006, 2013, Oracle and/or its affiliates. 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. Oracle designates this | |
| 8 * particular file as subject to the "Classpath" exception as provided | |
| 9 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 * or visit www.oracle.com if you need additional information or have any | |
| 23 * questions. | |
| 24 */ | |
| 25 | |
| 26 package com.sun.source.tree; | |
| 27 | |
| 28 /** | |
| 29 * Provides methods to convert between character positions and line numbers | |
| 30 * for a compilation unit. | |
| 31 * | |
| 32 * @since 1.6 | |
| 33 */ | |
| 34 @jdk.Exported | |
| 35 public interface LineMap { | |
| 36 /** | |
| 37 * Find the start position of a line. | |
| 38 * | |
| 39 * @param line line number (beginning at 1) | |
| 40 * @return position of first character in line | |
| 41 * @throws IndexOutOfBoundsException | |
| 42 * if {@code lineNumber < 1} | |
| 43 * if {@code lineNumber > no. of lines} | |
| 44 */ | |
| 45 long getStartPosition(long line); | |
| 46 | |
| 47 /** | |
| 48 * Find the position corresponding to a (line,column). | |
| 49 * | |
| 50 * @param line line number (beginning at 1) | |
| 51 * @param column tab-expanded column number (beginning 1) | |
| 52 * | |
| 53 * @return position of character | |
| 54 * @throws IndexOutOfBoundsException | |
| 55 * if {@code line < 1} | |
| 56 * if {@code line > no. of lines} | |
| 57 */ | |
| 58 long getPosition(long line, long column); | |
| 59 | |
| 60 /** | |
| 61 * Find the line containing a position; a line termination | |
| 62 * character is on the line it terminates. | |
| 63 * | |
| 64 * @param pos character offset of the position | |
| 65 * @return the line number of pos (first line is 1) | |
| 66 */ | |
| 67 long getLineNumber(long pos); | |
| 68 | |
| 69 /** | |
| 70 * Find the column for a character position. | |
| 71 * Tab characters preceding the position on the same line | |
| 72 * will be expanded when calculating the column number. | |
| 73 * | |
| 74 * @param pos character offset of the position | |
| 75 * @return the tab-expanded column number of pos (first column is 1) | |
| 76 */ | |
| 77 long getColumnNumber(long pos); | |
| 78 | |
| 79 } |
