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death/with-list-properties.lisp

Created December 8, 2017 12:54
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with-list-properties.lisp
(defmacro with-list-properties (((&rest vars) plist &key modify) &body forms)
(if modify
(once-only (plist)
(let* ((keys (mapcar #'make-keyword vars))
(bindings (mapcar (lambda (var key)
`(,var (getf ,plist ,key)))
vars keys)))
`(symbol-macrolet ,bindings
,@forms)))
`(destructuring-bind (&key ,@vars &allow-other-keys) ,plist
,@forms)))
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