91 lines
3.3 KiB
Java
91 lines
3.3 KiB
Java
/*
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* Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package com.sun.tools.javac.parser;
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import java.nio.CharBuffer;
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import com.sun.tools.javac.code.Source;
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import com.sun.tools.javac.util.Context;
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import com.sun.tools.javac.util.Log;
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import com.sun.tools.javac.util.Names;
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/**
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* A factory for creating scanners.
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*
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* <p><b>This is NOT part of any supported API.
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* If you write code that depends on this, you do so at your own
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* risk. This code and its internal interfaces are subject to change
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* or deletion without notice.</b>
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*/
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public class ScannerFactory {
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/** The context key for the scanner factory. */
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public static final Context.Key<ScannerFactory> scannerFactoryKey =
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new Context.Key<ScannerFactory>();
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/** Get the Factory instance for this context. */
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public static ScannerFactory instance(Context context) {
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ScannerFactory instance = context.get(scannerFactoryKey);
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if (instance == null)
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instance = new ScannerFactory(context);
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return instance;
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}
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final Log log;
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final Names names;
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final Source source;
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final Tokens tokens;
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/** Create a new scanner factory. */
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protected ScannerFactory(Context context) {
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context.put(scannerFactoryKey, this);
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this.log = Log.instance(context);
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this.names = Names.instance(context);
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this.source = Source.instance(context);
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this.tokens = Tokens.instance(context);
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}
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public Scanner newScanner(CharSequence input, boolean keepDocComments) {
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if (input instanceof CharBuffer) {
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CharBuffer buf = (CharBuffer) input;
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if (keepDocComments)
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return new Scanner(this, new JavadocTokenizer(this, buf));
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else
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return new Scanner(this, buf);
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} else {
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char[] array = input.toString().toCharArray();
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return newScanner(array, array.length, keepDocComments);
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}
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}
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public Scanner newScanner(char[] input, int inputLength, boolean keepDocComments) {
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if (keepDocComments)
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return new Scanner(this, new JavadocTokenizer(this, input, inputLength));
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else
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return new Scanner(this, input, inputLength);
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}
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}
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