(in-package "SB!KERNEL")
-(file-comment
- "$Header$")
+(/show0 "deftypes-for-target.lisp 14")
\f
;;;; Now that DEFTYPE is set up, any pending requests for it can
;;;; be honored.
\f
;;;; standard types
+;;; also has a definition in src/code/class.lisp, but we need it
+;;; earlier for array specialization.
+(sb!xc:deftype fixnum ()
+ '(integer #.sb!xc:most-negative-fixnum #.sb!xc:most-positive-fixnum))
+
(sb!xc:deftype boolean () '(member t nil))
(sb!xc:deftype mod (n)
#\n #\o #\p #\q #\r #\s #\t #\u #\v #\w #\x #\y #\z #\{
#\| #\} #\~))
-;;; FIXME: Would type inference be able to get more traction on this
-;;; if it were defined as (AND SYMBOL (SATISFIES KEYWORDP))?
(sb!xc:deftype keyword ()
- #!+sb-doc
- "Type for any keyword symbol."
- '(satisfies keywordp))
+ ;; Defining this as (AND SYMBOL ..) lets (SUBTYPEP 'KEYWORD 'SYMBOL)=>T,T.
+ '(and symbol (satisfies keywordp)))
(sb!xc:deftype eql (n) `(member ,n))
`(simple-array base-char (,size)))
(sb!xc:deftype string (&optional size)
`(or (array character (,size))
- (base-string ,size)))
+ (array nil (,size))
+ (base-string ,size)))
(sb!xc:deftype simple-string (&optional size)
`(or (simple-array character (,size))
- (simple-base-string ,size)))
+ (simple-array nil (,size))
+ (simple-base-string ,size)))
(sb!xc:deftype bit-vector (&optional size)
`(array bit (,size)))
(sb!xc:deftype simple-bit-vector (&optional size)
`(simple-array bit (,size)))
\f
-;;;; some private types that we use in defining the standard functions
+;;;; some private types that we use in defining the standard functions,
+;;;; or implementing declarations in standard compiler transforms
-;;; a type specifier
-(sb!xc:deftype type-specifier () '(or list symbol sb!xc:class))
+;;; semistandard types
+(sb!xc:deftype generalized-boolean () t)
;;; array rank, total size...
(sb!xc:deftype array-rank () `(integer 0 (,sb!xc:array-rank-limit)))
;;; something legal in an evaluated context
;;; FIXME: could probably go away
-(sb!xc:deftype form () 't)
+(sb!xc:deftype form () t)
;;; Maclisp compatibility...
;;; FIXME: should be STRING-DESIGNATOR (the term used in the ANSI spec)
;;; a thing legal in places where we want the name of a file
(sb!xc:deftype filename () '(or string pathname))
-;;; a legal arg to pathname functions
+;;; legal args to pathname functions
(sb!xc:deftype pathname-designator ()
- '(or string pathname stream))
+ '(or string pathname #+sb-xc-host stream #-sb-xc-host file-stream))
+(sb!xc:deftype logical-host-designator ()
+ '(or host string))
;;; a thing returned by the irrational functions. We assume that they
;;; never compute a rational result.
'(or float (complex float)))
;;; character components
-(sb!xc:deftype char-code () `(integer 0 (,char-code-limit)))
+(sb!xc:deftype char-code () `(integer 0 (,sb!xc:char-code-limit)))
;;; a consed sequence result. If a vector, is a simple array.
(sb!xc:deftype consed-sequence () '(or list (simple-array * (*))))
;;; the :END arg to a sequence
(sb!xc:deftype sequence-end () '(or null index))
+;;; the :COUNT arg to a sequence
+(sb!xc:deftype sequence-count ()
+ `(or null integer))
+
;;; a valid argument to a stream function
;;;
;;; FIXME: should probably be STREAM-DESIGNATOR, after the term
;;; used in the ANSI spec (if this is in fact exactly the same thing)
(sb!xc:deftype streamlike () '(or stream (member nil t)))
+;;; an object suitable for input to standard functions that accept
+;;; "environment objects" (of the ANSI glossary)
+(sb!xc:deftype lexenv-designator () '(or lexenv null))
+
;;; a thing that can be passed to FUNCALL & friends
;;;
;;; FIXME: should be FUNCTION-DESIGNATOR?
`(integer 0 (,(ash 1 sb!vm:single-float-digits))))
(sb!xc:deftype double-float-significand ()
`(integer 0 (,(ash 1 sb!vm:double-float-digits))))
+
+(/show0 "deftypes-for-target.lisp end of file")