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diff --git a/trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/debug/DebugFrame.java b/trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/debug/DebugFrame.java
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+/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0
+ *
+ * The contents of this file are subject to the Mozilla 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/MPL/
+ *
+ * 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 Rhino code, released
+ * May 6, 1999.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1997-2000
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   Norris Boyd
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * the GNU General Public License Version 2 or later (the "GPL"), in which
+ * case the provisions of the GPL are applicable instead of those above. If
+ * you wish to allow use of your version of this file only under the terms of
+ * the GPL and not to allow others to use your version of this file under the
+ * MPL, indicate your decision by deleting the provisions above and replacing
+ * them with the notice and other provisions required by the GPL. If you do
+ * not delete the provisions above, a recipient may use your version of this
+ * file under either the MPL or the GPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+// API class
+
+package org.mozilla.javascript.debug;
+
+import org.mozilla.javascript.Context;
+import org.mozilla.javascript.Scriptable;
+
+/**
+Interface to implement if the application is interested in receiving debug
+information during execution of a particular script or function.
+*/
+public interface DebugFrame {
+
+/**
+Called when execution is ready to start bytecode interpretation for entered a particular function or script.
+
+@param cx current Context for this thread
+@param activation the activation scope for the function or script.
+@param thisObj value of the JavaScript <code>this</code> object
+@param args the array of arguments
+*/
+    public void onEnter(Context cx, Scriptable activation,
+                        Scriptable thisObj, Object[] args);
+/**
+Called when executed code reaches new line in the source.
+@param cx current Context for this thread
+@param lineNumber current line number in the script source
+*/
+    public void onLineChange(Context cx, int lineNumber);
+
+/**
+Called when thrown exception is handled by the function or script.
+@param cx current Context for this thread
+@param ex exception object
+*/
+    public void onExceptionThrown(Context cx, Throwable ex);
+
+/**
+Called when the function or script for this frame is about to return.
+@param cx current Context for this thread
+@param byThrow if true function will leave by throwing exception, otherwise it
+       will execute normal return
+@param resultOrException function result in case of normal return or
+       exception object if about to throw exception
+*/
+    public void onExit(Context cx, boolean byThrow, Object resultOrException);
+
+/**
+Called when the function or script executes a 'debugger' statement.
+@param cx current Context for this thread
+*/
+    public void onDebuggerStatement(Context cx);
+}