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org.apache.cocoon.components.flow.javascript
Class LocationTrackingDebugger

java.lang.Object
  org.apache.cocoon.components.flow.javascript.LocationTrackingDebugger

All Implemented Interfaces:

org.mozilla.javascript.debug.Debugger

public class LocationTrackingDebugger

extends Object

implements org.mozilla.javascript.debug.Debugger

A Rhino debugger that tracks location information when an exception is raised in some JavaScript code. It's purpose is to build a ProcessingException that holds the stacktrace in the JavaScript code.

This debugger implementation is designed to be as lightweight and fast as possible, in order to have a negligible impact on the performances of the Rhino interpreter.

Since:

2.1.8

Version:

$Id: LocationTrackingDebugger.html 1304280 2012-03-23 11:18:01Z ilgrosso $

Field Summary

protected List	locations
protected Throwable	throwable

Constructor Summary

LocationTrackingDebugger()

Method Summary

Exception	getException(String description, Exception originalException) Get an exception that reflects the known location stack
org.mozilla.javascript.debug.DebugFrame	getFrame(org.mozilla.javascript.Context cx, org.mozilla.javascript.debug.DebuggableScript fnOrScript)
void	handleCompilationDone(org.mozilla.javascript.Context cx, org.mozilla.javascript.debug.DebuggableScript fnOrScript, String source)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

locations

protected List locations

throwable

protected Throwable throwable

Constructor Detail

LocationTrackingDebugger

public LocationTrackingDebugger()

Method Detail

handleCompilationDone

public void handleCompilationDone(org.mozilla.javascript.Context cx,
                                  org.mozilla.javascript.debug.DebuggableScript fnOrScript,
                                  String source)

Specified by:

handleCompilationDone in interface org.mozilla.javascript.debug.Debugger

getFrame

public org.mozilla.javascript.debug.DebugFrame getFrame(org.mozilla.javascript.Context cx,
                                                        org.mozilla.javascript.debug.DebuggableScript fnOrScript)

Specified by:

getFrame in interface org.mozilla.javascript.debug.Debugger

getException

public Exception getException(String description,
                              Exception originalException)
                       throws org.apache.cocoon.ProcessingException

Get an exception that reflects the known location stack

Parameters:

description - a description for the exception

originalException - the original exception

Returns:

a suitable exception to throw

Throws:

org.apache.cocoon.ProcessingException

See Also:

ProcessingException.throwLocated(String, Throwable, Location)