/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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 * The Original Code is mozilla.org code.
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package com.netscape.jsdebugging.api.rhino;

import com.netscape.jsdebugging.api.*;

/**
 * DebugBreakHook must be subclassed to respond to hooks
 * at a particular program instruction.
 */
public class DebugBreakHookRhino implements com.netscape.javascript.debug.IDebugBreakHook
{
    public DebugBreakHookRhino( DebugBreakHook hook )
    {
        _hook = hook;
    }

    public void aboutToExecute(com.netscape.javascript.debug.IThreadState debug, 
                               com.netscape.javascript.debug.IPC pc)
    {
        try
        {
            JSThreadStateRhino ts = new JSThreadStateRhino(debug);
            JSPCRhino jspc = (JSPCRhino) ts.getCurrentFrame().getPC();
            ts.aboutToCallHook();
            _hook.aboutToExecute(ts, jspc);
            ts.returnedFromCallHook();
        }
        catch( Exception e )
        {
            e.printStackTrace();
            // eat it.
        }
    }

    public DebugBreakHook getWrappedHook() {return _hook;}

    private DebugBreakHook _hook;
}