pjs/js/jsd/classes/netscape/jsdebug/SourceLocation.java

58 строки
2.0 KiB
Java

/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
package netscape.jsdebug;
/**
* An implementation of the SourceLocation interface is used to represent
* a location in a source file. Java classfiles only make source locations
* available at the line-by-line granularity, but other languages may
* include finer-grain information. At this time only line number
* information is included.
*
* @author John Bandhauer
* @author Nick Thompson
* @version 1.0
* @since 1.0
*/
/* XXX must source locations be contiguous? */
public abstract class SourceLocation {
/**
* Gets the first line number associated with this SourceLocation.
* This is the lowest common denominator information that will be
* available: some implementations may choose to include more
* specific location information in a subclass of SourceLocation.
*
* @returns source line number cooresponding to this location
*/
public abstract int getLine();
/**
* Get the first PC associated with a given SourceLocation.
* This is the place to set a breakpoint at that location.
*
* @returns pc object or null if there is no code corresponding
* to this source location.
*/
public abstract PC getPC();
}