jdk8-mips64-public/langtools: src/share/classes/com/sun/tools/javac/parser/Keywords.java@9a66ca7c79fa (annotated)

src/share/classes/com/sun/tools/javac/parser/Keywords.java@9a66ca7c79fa (annotated)

src/share/classes/com/sun/tools/javac/parser/Keywords.java

Sat, 01 Dec 2007 00:00:00 +0000

author: duke
date: Sat, 01 Dec 2007 00:00:00 +0000
changeset 1: 9a66ca7c79fa
child 80: 5c9cdeb740f2
permissions: -rw-r--r--

Initial load

 /*
  * Copyright 2002-2006 Sun Microsystems, Inc.  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.  Sun designates this
  * particular file as subject to the "Classpath" exception as provided
  * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  * CA 95054 USA or visit www.sun.com if you need additional information or
  * have any questions.
  */
 package com.sun.tools.javac.parser;
 import com.sun.tools.javac.util.Context;
 import com.sun.tools.javac.util.Log;
 import com.sun.tools.javac.util.Name;
 import static com.sun.tools.javac.parser.Token.*;
 /**
  * Map from Name to Token and Token to String.
  *
  * <p><b>This is NOT part of any API supported by Sun Microsystems.
  * If you write code that depends on this, you do so at your own risk.
  * This code and its internal interfaces are subject to change or
  * deletion without notice.</b>
  */
 public class Keywords {
     public static final Context.Key<Keywords> keywordsKey =
         new Context.Key<Keywords>();
     public static Keywords instance(Context context) {
         Keywords instance = context.get(keywordsKey);
         if (instance == null)
             instance = new Keywords(context);
         return instance;
     }
     private final Log log;
     private final Name.Table names;
     protected Keywords(Context context) {
         context.put(keywordsKey, this);
         log = Log.instance(context);
         names = Name.Table.instance(context);
         for (Token t : Token.values()) {
             if (t.name != null)
                 enterKeyword(t.name, t);
             else
                 tokenName[t.ordinal()] = null;
         }
         key = new Token[maxKey+1];
         for (int i = 0; i <= maxKey; i++) key[i] = IDENTIFIER;
         for (Token t : Token.values()) {
             if (t.name != null)
                 key[tokenName[t.ordinal()].index] = t;
         }
     }
     public Token key(Name name) {
         return (name.index > maxKey) ? IDENTIFIER : key[name.index];
     }
     /**
      * Keyword array. Maps name indices to Token.
      */
     private final Token[] key;
     /**  The number of the last entered keyword.
      */
     private int maxKey = 0;
     /** The names of all tokens.
      */
     private Name[] tokenName = new Name[Token.values().length];
     public String token2string(Token token) {
         switch (token) {
         case IDENTIFIER:
             return log.getLocalizedString("token.identifier");
         case CHARLITERAL:
             return log.getLocalizedString("token.character");
         case STRINGLITERAL:
             return log.getLocalizedString("token.string");
         case INTLITERAL:
             return log.getLocalizedString("token.integer");
         case LONGLITERAL:
             return log.getLocalizedString("token.long-integer");
         case FLOATLITERAL:
             return log.getLocalizedString("token.float");
         case DOUBLELITERAL:
             return log.getLocalizedString("token.double");
         case ERROR:
             return log.getLocalizedString("token.bad-symbol");
         case EOF:
             return log.getLocalizedString("token.end-of-input");
         case DOT: case COMMA: case SEMI: case LPAREN: case RPAREN:
         case LBRACKET: case RBRACKET: case LBRACE: case RBRACE:
             return "'" + token.name + "'";
         default:
             return token.name;
         }
     }
     private void enterKeyword(String s, Token token) {
         Name n = names.fromString(s);
         tokenName[token.ordinal()] = n;
         if (n.index > maxKey) maxKey = n.index;
     }
 }

Mercurial > jdk8-mips64-public > langtools / annotate

src/share/classes/com/sun/tools/javac/parser/Keywords.java@9a66ca7c79fa (annotated)

src/share/classes/com/sun/tools/javac/parser/Keywords.java