/*******************************************************************************
* Copyright (c) 2009 Wind River Systems, Inc. and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Markus Schorn - initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.internal.core.parser;
import org.eclipse.cdt.core.parser.FileContent;
import org.eclipse.cdt.internal.core.parser.scanner.AbstractCharArray;
import org.eclipse.cdt.internal.core.parser.scanner.CharArray;
import org.eclipse.cdt.internal.core.parser.scanner.InternalFileContent;
public abstract class CodeReaderAdapter {
/**
* @deprecated avoid using the adapter, its for backwards compatibility, only.
*/
@Deprecated
public static org.eclipse.cdt.core.parser.CodeReader adapt(FileContent content) {
if (content == null)
return null;
return new org.eclipse.cdt.core.parser.CodeReader(content.getFileLocation(), extractBuffer(content));
}
private static char[] extractBuffer(FileContent content) {
if (!(content instanceof InternalFileContent)) {
throw new IllegalArgumentException("Invalid file content object!"); //$NON-NLS-1$
}
AbstractCharArray source= ((InternalFileContent) content).getSource();
if (source instanceof CharArray) {
return ((CharArray)source).getArray();
}
int len= source.tryGetLength();
if (len < 0) {
len=0;
while (source.isValidOffset(len))
len++;
}
char[] result= new char[len];
source.arraycopy(0, result, 0, len);
return result;
}
}