Syntax:
slot-makunbound instance slot-name => instance
Arguments and Values:
instance -- instance.
Slot-name---a symbol.
Description:
The function slot-makunbound restores a slot of the name slot-name in an instance to the unbound state.
Examples: None.
Affected By: None.
Exceptional Situations:
If no slot of the name slot-name exists in the instance, slot-missing is called as follows:
(slot-missing (class-of instance)
instance
slot-name
'slot-makunbound)
(Any values returned by slot-missing in this case are ignored by slot-makunbound.)
The specific behavior depends on instance's metaclass. An error is never signaled if instance has metaclass standard-class. An error is always signaled if instance has metaclass built-in-class. The consequences are undefined if instance has any other metaclass--an error might or might not be signaled in this situation. Note in particular that the behavior for conditions and structures is not specified.
See Also:
Notes:
Although no implementation is required to do so, implementors are strongly encouraged to implement the function slot-makunbound using the function slot-makunbound-using-class described in the Metaobject Protocol.
The following X3J13 cleanup issues, not part of the specification, apply to this section:RetroSearch is an open source project built by @garambo | Open a GitHub Issue
Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo
HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.4