console/traceback

Experimental

Functionality similar to Python's traceback module.

Usage

Tracebacks are stored in JSON format. The stack is represented as an array in which the most recent stack frame is the last element; each element thus represents a stack frame and has the following keys:

filename The name of the file that the stack frame takes place in.
lineNo The line number is being executed at the stack frame.
funcName The name of the function being executed at the stack frame, or null if the function is anonymous or the stack frame is being executed in a top-level script or module.

See nsIException for more information.

Globals

Functions

fromException(exception)

Attempts to extract the traceback from exception.

Parameters

exception : exception
exception where exception is an nsIException.

Returns

traceback : JSON representation of the traceback or null if not found.

get()

Returns

JSON : Returns the JSON representation of the stack at the point that this function is called.

format(tbOrException)

Given a JSON representation of the stack or an exception instance, returns a formatted plain text representation of it, similar to Python's formatted stack tracebacks. If no argument is provided, the stack at the point this function is called is used.

Parameters

tbOrException : object

Document Tags and Contributors

Contributors to this page: wbamberg, jsantell
Last updated by: wbamberg,