Mercurial > jdk8-mips64-public > langtools / annotate
src/share/classes/com/sun/tools/javac/parser/Lexer.java@7375d4979bd3 (annotated)
src/share/classes/com/sun/tools/javac/parser/Lexer.java
Mon, 14 Nov 2011 15:11:10 -0800
- author
- ksrini
- date
- Mon, 14 Nov 2011 15:11:10 -0800
- changeset 1138
- 7375d4979bd3
- parent 1113
- d346ab55031b
- child 1144
- 9448fe783fd2
- permissions
- -rw-r--r--
7106166: (javac) re-factor EndPos parser
Reviewed-by: jjg
| duke@1 | 1 | /* |
| ohair@554 | 2 | * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved. |
| duke@1 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| duke@1 | 4 | * |
| duke@1 | 5 | * This code is free software; you can redistribute it and/or modify it |
| duke@1 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| ohair@554 | 7 | * published by the Free Software Foundation. Oracle designates this |
| duke@1 | 8 | * particular file as subject to the "Classpath" exception as provided |
| ohair@554 | 9 | * by Oracle in the LICENSE file that accompanied this code. |
| duke@1 | 10 | * |
| duke@1 | 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| duke@1 | 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| duke@1 | 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| duke@1 | 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| duke@1 | 15 | * accompanied this code). |
| duke@1 | 16 | * |
| duke@1 | 17 | * You should have received a copy of the GNU General Public License version |
| duke@1 | 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| duke@1 | 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| duke@1 | 20 | * |
| ohair@554 | 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| ohair@554 | 22 | * or visit www.oracle.com if you need additional information or have any |
| ohair@554 | 23 | * questions. |
| duke@1 | 24 | */ |
| duke@1 | 25 | |
| duke@1 | 26 | package com.sun.tools.javac.parser; |
| duke@1 | 27 | |
| mcimadamore@1113 | 28 | import com.sun.tools.javac.parser.Tokens.*; |
| duke@1 | 29 | import com.sun.tools.javac.util.Position.LineMap; |
| duke@1 | 30 | |
| duke@1 | 31 | /** |
| duke@1 | 32 | * The lexical analyzer maps an input stream consisting of ASCII |
| duke@1 | 33 | * characters and Unicode escapes into a token sequence. |
| duke@1 | 34 | * |
| jjg@581 | 35 | * <p><b>This is NOT part of any supported API. |
| duke@1 | 36 | * If you write code that depends on this, you do so at your own risk. |
| duke@1 | 37 | * This code and its internal interfaces are subject to change or |
| duke@1 | 38 | * deletion without notice.</b> |
| duke@1 | 39 | */ |
| duke@1 | 40 | public interface Lexer { |
| duke@1 | 41 | |
| duke@1 | 42 | /** |
| mcimadamore@1113 | 43 | * Consume the next token. |
| duke@1 | 44 | */ |
| mcimadamore@1113 | 45 | void nextToken(); |
| duke@1 | 46 | |
| duke@1 | 47 | /** |
| mcimadamore@1113 | 48 | * Return current token. |
| duke@1 | 49 | */ |
| mcimadamore@1113 | 50 | Token token(); |
| duke@1 | 51 | |
| duke@1 | 52 | /** |
| mcimadamore@1113 | 53 | * Return the last character position of the previous token. |
| duke@1 | 54 | */ |
| mcimadamore@1113 | 55 | Token prevToken(); |
| mcimadamore@1113 | 56 | |
| mcimadamore@1113 | 57 | /** |
| mcimadamore@1113 | 58 | * Splits the current token in two and return the first (splitted) token. |
| mcimadamore@1113 | 59 | * For instance '<<<' is splitted into two tokens '<' and '<<' respectively, |
| mcimadamore@1113 | 60 | * and the latter is returned. |
| mcimadamore@1113 | 61 | */ |
| mcimadamore@1113 | 62 | Token split(); |
| duke@1 | 63 | |
| duke@1 | 64 | /** |
| duke@1 | 65 | * Return the position where a lexical error occurred; |
| duke@1 | 66 | */ |
| duke@1 | 67 | int errPos(); |
| duke@1 | 68 | |
| duke@1 | 69 | /** |
| duke@1 | 70 | * Set the position where a lexical error occurred; |
| duke@1 | 71 | */ |
| duke@1 | 72 | void errPos(int pos); |
| duke@1 | 73 | |
| duke@1 | 74 | /** |
| duke@1 | 75 | * Build a map for translating between line numbers and |
| duke@1 | 76 | * positions in the input. |
| duke@1 | 77 | * |
| duke@1 | 78 | * @return a LineMap |
| duke@1 | 79 | */ |
| duke@1 | 80 | LineMap getLineMap(); |
| duke@1 | 81 | } |
