traceback module contains functionality similar to
Python's traceback module.
JSON Traceback Objects
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:
||The name of the file that the stack frame takes place in.|
||The line number is being executed at the stack frame.|
||The name of the function being executed at the stack frame, or
See nsIException for more information.
Attempts to extract the traceback from
exception where exception is an
JSON representation of the traceback or
null if not found.
Returns the JSON representation of the stack at the point that this function is called.
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.