| | | check-for-deleted-instance | |
|
| &optional operation | [Function] |
Purpose
Signal an error if the supplied unit instance has been
deleted.
Package :gbbopen
Module :gbbopen-core
Arguments and values
| unit-instance | A unit instance | |
| operation | A symbol (default is nil)
|
See also
delete-instance
instance-deleted-p
Examples
Create, then delete, then check, a hyp unit instance:
> (check-for-deleted-instance (delete-instance (make-instance 'hyp)))
Error: Instance #<deleted-unit-instance hyp 7> has been deleted
>> :abort
> (check-for-deleted-instance (delete-instance (make-instance 'hyp))
'my-operation)
Error: my-operation attempted with a deleted instance: #<deleted-unit-instance hyp 8>
>>
The GBBopen Project
| | | check-for-deleted-instance | |