Re:How knowing Lisp destroyed my programming career (2006)
by vzcx on Wednesday March 14, 2018 @06:42PM
(#16589009)
The CL condition system separates the signaling of a condition (of which errors are a subtype), the handling of a condition, and the definition of recovery strategies (restarts).
Instead of unwinding the stack when a condition is signaled, handler code is invoked in the dynamic context of the signal and thus has much more information available to decide how to recover.
If a decision on how to recover can't be made programmatically, the system kicks out to the user where they are presented with the choices you have given them.
Instead of unwinding the stack when a condition is signaled, handler code is invoked in the dynamic context of the signal and thus has much more information available to decide how to recover.
If a decision on how to recover can't be made programmatically, the system kicks out to the user where they are presented with the choices you have given them.
See: http://www.nhplace.com/kent/Papers/Condition-Handling-2001.h... for more.