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Common Lisp the Language, 2nd Edition
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Up: Inheritance
Previous: Inheritance of
Slots
The :default-initargs class option is inherited. The set of
defaulted initialization arguments for a class is the union of the sets
of initialization arguments specified in the
:default-initargs class options of the class and its
superclasses. When more than one default initial value form is supplied
for a given initialization argument, the default initial value form that
is used is the one supplied by the class that is most specific according
to the class precedence list.
If a given :default-initargs class option specifies an
initialization argument of the same name more than once, an error is
signaled.
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