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/*******************************************************************************
* Copyright (c) 2005, 2009 IBM Corporation 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.internal.core.dom.parser;
import java.io.IOException;
import org.eclipse.cdt.core.index.IIndexFileLocation;
import org.eclipse.cdt.core.parser.CodeReader;
import org.eclipse.cdt.core.parser.ICodeReaderCache;
import org.eclipse.cdt.internal.core.parser.InternalParserUtil;
import org.eclipse.core.runtime.CoreException;
/**
* This is an empty implementation of the ICodeReaderCache interface. It is used to implement a
* cache for the interface that isn't actually a cache, but rather always creates new CodeReaders
* every time a CodeReader is retrieved.
*
* This cache is not optimized to be run from within Eclipse (i.e. it ignores IResources).
* @deprecated
*/
@Deprecated
public class EmptyCodeReaderCache implements ICodeReaderCache {
/**
* Creates a new CodeReader for the given file location.
*/
public CodeReader get(String location) {
try {
return new CodeReader(location);
} catch (IOException e) {
}
return null;
}
public CodeReader get(String key, IIndexFileLocation ifl) throws CoreException, IOException {
return InternalParserUtil.createCodeReader(ifl, null);
}
/**
* Returns null.
*/
public CodeReader remove(String key) {
return null;
}
/**
* Returns 0.
*/
public int getCurrentSpace() {
return 0;
}
public void flush() {
// nothing to do
}
}
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