Modifying constructor for tyspec-union structures.
(change-tyspec-union x [:unwrap <unwrap>])
This is an often useful alternative to make-tyspec-union.
We construct a new tyspec-union structure that is a copy of
This is an ordinary
Macro:
(defmacro change-tyspec-union (x &rest args) (std::change-aggregate 'tyspec-union x args '((:unwrap . tyspec-union->unwrap)) 'change-tyspec-union 'nil))