invoke-restart-interactively
invoke-restart-interactively Function
Syntax:
invoke-restart-interactively restart → {result}*
Arguments and Values:
restart—a restart designator .
results—the values returned by the function associated with restart, if that function returns.
Description:
invoke-restart-interactively calls the function associated with restart, prompting for any necessary arguments. If restart is a name, it must be valid in the current dynamic environment.
invoke-restart-interactively prompts for arguments by executing the code provided in the :interactive keyword to restart-case or :interactive-function keyword to restart-bind.
If no such options have been supplied in the corresponding restart-bind or restart-case, then the consequences are undefined if the restart takes required arguments. If the arguments are optional, an argument list of nil is used.
Once the arguments have been determined, invoke-restart-interactively executes the following: (apply #’invoke-restart restart arguments)
Examples:
(defun add3 (x) (check-type x number) (+ x 3))
(add3 ’seven)
▷ Error: The value SEVEN was not of type NUMBER.
▷ To continue, type :CONTINUE followed by an option number:
▷ 1: Specify a different value to use.
▷ 2: Return to Lisp Toplevel.
▷ Debug> (invoke-restart-interactively ’store-value)
▷ Type a form to evaluate and use: 7
→ 10
Side Effects:
If prompting for arguments is necesary, some typeout may occur (on query I/O).
A non-local transfer of control might be done by the restart.
Affected By:
*query-io*, active restarts
Exceptional Situations:
If restart is not valid, an error of type control-error is signaled.
See Also:
find-restart, invoke-restart, restart-case, restart-bind
Notes:
invoke-restart-interactively is used internally by the debugger and may also be useful in implementing other portable, interactive debugging tools.
Expanded Reference: invoke-restart-interactively
TODO: Please contribute to this page by adding explanations and examples
(invoke-restart-interactively )