Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: src/share/classes/com/sun/tools/javac/parser/ScannerFactory.java
src/share/classes/com/sun/tools/javac/parser/ScannerFactory.java
- changeset 695
- 3c9b64e55c5d
- parent 674
- 584365f256a7
- child 1113
- d346ab55031b
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| 694:f6fe12839a8a | 695:3c9b64e55c5d |
|---|---|
| 1 /* | |
| 2 * Copyright (c) 1999, 2010, 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.tools.javac.parser; | |
| 27 | |
| 28 import java.nio.CharBuffer; | |
| 29 | |
| 30 import com.sun.tools.javac.code.Source; | |
| 31 import com.sun.tools.javac.util.Context; | |
| 32 import com.sun.tools.javac.util.Log; | |
| 33 import com.sun.tools.javac.util.Names; | |
| 34 | |
| 35 | |
| 36 /** | |
| 37 * A factory for creating scanners. | |
| 38 * | |
| 39 * <p><b>This is NOT part of any supported API. | |
| 40 * If you write code that depends on this, you do so at your own | |
| 41 * risk. This code and its internal interfaces are subject to change | |
| 42 * or deletion without notice.</b> | |
| 43 */ | |
| 44 public class ScannerFactory { | |
| 45 /** The context key for the scanner factory. */ | |
| 46 public static final Context.Key<ScannerFactory> scannerFactoryKey = | |
| 47 new Context.Key<ScannerFactory>(); | |
| 48 | |
| 49 /** Get the Factory instance for this context. */ | |
| 50 public static ScannerFactory instance(Context context) { | |
| 51 ScannerFactory instance = context.get(scannerFactoryKey); | |
| 52 if (instance == null) | |
| 53 instance = new ScannerFactory(context); | |
| 54 return instance; | |
| 55 } | |
| 56 | |
| 57 final Log log; | |
| 58 final Names names; | |
| 59 final Source source; | |
| 60 final Keywords keywords; | |
| 61 | |
| 62 /** Create a new scanner factory. */ | |
| 63 protected ScannerFactory(Context context) { | |
| 64 context.put(scannerFactoryKey, this); | |
| 65 this.log = Log.instance(context); | |
| 66 this.names = Names.instance(context); | |
| 67 this.source = Source.instance(context); | |
| 68 this.keywords = Keywords.instance(context); | |
| 69 } | |
| 70 | |
| 71 public Scanner newScanner(CharSequence input, boolean keepDocComments) { | |
| 72 if (input instanceof CharBuffer) { | |
| 73 CharBuffer buf = (CharBuffer) input; | |
| 74 if (keepDocComments) | |
| 75 return new DocCommentScanner(this, buf); | |
| 76 else | |
| 77 return new Scanner(this, buf); | |
| 78 } else { | |
| 79 char[] array = input.toString().toCharArray(); | |
| 80 return newScanner(array, array.length, keepDocComments); | |
| 81 } | |
| 82 } | |
| 83 | |
| 84 public Scanner newScanner(char[] input, int inputLength, boolean keepDocComments) { | |
| 85 if (keepDocComments) | |
| 86 return new DocCommentScanner(this, input, inputLength); | |
| 87 else | |
| 88 return new Scanner(this, input, inputLength); | |
| 89 } | |
| 90 } |
