Test if a class is a subclass of another class in common lisp
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24-10-2019 - |
Question
How do I see if one CLOS class is a subclass of another CLOS class?
Solution
You can get the CLASS-NAME of a class.
A class has also a type of the same name.
SUBTYPEP tests if a type is a subtype of another type.
OTHER TIPS
closer-mop provides a subclassp
predicate
CL-USER> (c2mop:subclassp (find-class 'condition) (find-class 'error))
NIL
CL-USER> (c2mop:subclassp (find-class 'error) (find-class 'condition))
T
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