invoke-restart
invoke-restart Function
Syntax:
invoke-restart restart &rest arguments → {result}*
Arguments and Values:
restart—a restart designator .
argument—an object.
results—the values returned by the function associated with restart, if that function returns.
Description:
Calls the function associated with restart, passing arguments to it. Restart must be valid in the current dynamic environment.
Examples:
(defun add3 (x) (check-type x number) (+ x 3))
(foo ’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 ’store-value 7)
→ 10
Side Effects:
A non-local transfer of control might be done by the restart.
Affected By:
Existing restarts.
Exceptional Situations:
If restart is not valid, an error of type control-error is signaled.
See Also:
find-restart, restart-bind, restart-case, invoke-restart-interactively
Notes:
The most common use for invoke-restart is in a handler . It might be used explicitly, or implicitly through invoke-restart-interactively or a restart function.
Restart functions call invoke-restart, not vice versa. That is, invoke-restart provides primitive functionality, and restart functions are non-essential “syntactic sugar.”
invoke-restart-interactivelyExpanded Reference: invoke-restart
TODO: Please contribute to this page by adding explanations and examples
(invoke-restart )