gecko-dev/js/jsdj/classes/netscape/jsdebug/JSStackFrameInfo.java

65 lines
2.1 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;
/**
* This interface provides access to the execution stack of a thread.
* It has several subclasses to distinguish between different kinds of
* stack frames: these currently include activations of Java methods
* or JavaScript functions.
* It is possible that synchronize blocks and try blocks deserve their own
* stack frames - to allow for later extensions a debugger should skip over
* stack frames it doesn't understand.
* Note that this appears very Java-specific. However, multiple threads and
* exceptions are relevant to JavaScript as well because of its
* interoperation with Java.
*
* @author John Bandhauer
* @version 1.0
* @since 1.0
*/
public final class JSStackFrameInfo extends StackFrameInfo
{
public JSStackFrameInfo(JSThreadState threadState) {
super(threadState);
}
protected native StackFrameInfo getCaller0()
throws InvalidInfoException;
public native PC getPC()
throws InvalidInfoException;
public native Value getCallObject()
throws InvalidInfoException;
public native Value getScopeChain()
throws InvalidInfoException;
public native Value getThis()
throws InvalidInfoException;
private int _nativePtr; // used internally
}