Current errors, failures, handlers, protect blocks, aborting, stack inspection, and defensive examples.
Returns current error code.
Returns the current error object or state.
Returns current error message.
Returns current error object.
Pops error state.
Pushes current error state.
Resets error state.
Sets current error code.
Sets current error message.
Returns error stack details.
Raises a failure.
Raises a failure when condition is true.
Handles a protected failure.
Handles a failure.
Runs code with failure handling.