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/*******************************************************************************
* Copyright (c) 2009, 2021 Mountainminds GmbH & Co. KG and Contributors
* This program and the accompanying materials are made available under
* the terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Marc R. Hoffmann - initial API and implementation
*
*******************************************************************************/
package org.jacoco.report;
import java.io.IOException;
import java.io.Reader;
/**
* Interface to look-up source files that will be included with the report.
*/
public interface ISourceFileLocator {
/**
* Tries to locate the given source file and opens a reader with the
* appropriate encoding.
*
* @param packageName
* VM name of the package
* @param fileName
* name of the source file
* @return reader if the file could be located, <code>null</code> otherwise
* @throws IOException
* in case of problems while opening the file
*/
Reader getSourceFile(String packageName, String fileName)
throws IOException;
/**
* Returns number of blank characters that represent a tab in source code.
*
* @return tab width as number of blanks
*/
int getTabWidth();
}
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