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;;; cl-types.lisp -- type-related stuff
;;;
;;; author : Sandra Loosemore
;;; date : 5 Oct 1992
;;;
;;; Export CL symbols for type names
(define-mumble-import t)
#+lucid
(define-mumble-type mumble::procedure () 'system::procedure)
#+(or cmu akcl allegro mcl lispworks)
(define-mumble-type mumble::procedure () 'function)
#+wcl
(define-mumble-type mumble::procedure () 'lisp:procedure)
#-(or lucid cmu akcl allegro mcl lispworks wcl)
(missing-mumble-definition procedure)
(define-mumble-type mumble::pair () 'cons)
(define-mumble-import null)
(define-mumble-type mumble::list (&optional element-type)
;; *** Common Lisp provides no way to make use of the element type
;; *** without using SATISFIES.
(declare (ignore element-type))
'list)
(define-mumble-import symbol)
(define-mumble-type mumble::char () 'character)
(define-mumble-type mumble::string () 'simple-string)
(define-mumble-type mumble::vector () 'simple-vector)
(define-mumble-import number)
(define-mumble-import integer)
(define-mumble-import rational)
(define-mumble-import float)
(define-mumble-import fixnum)
(define-mumble-type mumble::int () 'fixnum)
(define-mumble-type mumble::table (&optional key-type value-type)
;; *** Common Lisp provides no way to make use of the element type
;; *** without using SATISFIES.
(declare (ignore key-type value-type))
'hash-table)
;;; Extensions
(define-mumble-type mumble::enum (&rest values)
`(member ,@values))
(define-mumble-type mumble::tuple (&rest element-types)
;; *** Common Lisp provides no way to make use of the element type
;; *** without using SATISFIES.
(let ((n (length element-types)))
(cond ((< n 2)
(error "Too few arguments to TUPLE type specifier."))
((eql n 2)
'cons)
(t
'simple-vector))))
(define-mumble-type mumble::bool () 't)
(define-mumble-type mumble::alist (&optional key-type value-type)
`(mumble::list (tuple ,key-type ,value-type)))
(define-mumble-type mumble::maybe (type)
`(or ,type null))
;;; Functions, etc.
(define-mumble-import the)
(define-mumble-synonym mumble::subtype? subtypep)
(define-mumble-function-inline mumble::is-type? (type object)
(typep object type))
(define-mumble-macro mumble::typecase (data &rest cases)
(let ((last (car (last cases))))
(if (eq (car last) 'mumble::else)
`(typecase ,data ,@(butlast cases) (t ,@(cdr last)))
`(typecase ,data ,@cases))))
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