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