/*******************************************************************************
* Copyright (c) 2014 Willink Transformations 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:
* R.Dvorak and others - QVTo debugger framework
* E.D.Willink - revised API for OCL debugger framework
*******************************************************************************/
package org.eclipse.ocl.examples.debug.vm.utils;
/**
* An interface for objects providing lines
*/
public interface LineNumberProvider {
/**
* Returns offset of the given line end
*
* @param lineNumber -
* number of line (one-based)
* @return offset of the last character of the line that is line-delimiter -
* '\n'
*/
public int getLineEnd(int lineNumber);
/**
* @return Number of lines
*/
public int getLineCount();
/**
* Returns number of a line containing given offset
*
* @param offset -
* an offset to look for
* @return (one-based) line number or -1 if no line found
*/
public int getLineNumber(int offset);
}