- (numeric-type
- (let ((lo (numeric-type-low type))
- (hi (numeric-type-high type)))
- (case (numeric-type-complexp type)
- (:real
- (case (numeric-type-class type)
- (integer
- (cond ((and hi lo)
- (dolist (spec
- `((positive-fixnum 0 ,(1- (ash 1 29)))
- #!-alpha
- (unsigned-byte-31 0 ,(1- (ash 1 31)))
- #!-alpha
- (unsigned-byte-32 0 ,(1- (ash 1 32)))
- #!+alpha
- (unsigned-byte-63 0 ,(1- (ash 1 63)))
- #!+alpha
- (unsigned-byte-64 0 ,(1- (ash 1 64)))
- (fixnum ,(ash -1 29)
- ,(1- (ash 1 29)))
- #!-alpha
- (signed-byte-32 ,(ash -1 31)
- ,(1- (ash 1 31)))
- #!+alpha
- (signed-byte-64 ,(ash -1 63)
- ,(1- (ash 1 63))))
- (if (or (< hi (ash -1 29))
- (> lo (1- (ash 1 29))))
- (part-of bignum)
- (any)))
- (let ((type (car spec))
- (min (cadr spec))
- (max (caddr spec)))
- (when (<= min lo hi max)
- (return (values
- (primitive-type-or-lose type)
- (and (= lo min) (= hi max))))))))
- ((or (and hi (< hi most-negative-fixnum))
- (and lo (> lo most-positive-fixnum)))
- (part-of bignum))
- (t
- (any))))
- (float
- (let ((exact (and (null lo) (null hi))))
- (case (numeric-type-format type)
- ((short-float single-float)
- (values (primitive-type-or-lose 'single-float)
- exact))
- ((double-float #!-long-float long-float)
- (values (primitive-type-or-lose 'double-float)
- exact))
- #!+long-float
- (long-float
- (values (primitive-type-or-lose 'long-float)
- exact))
- (t
- (any)))))
- (t
- (any))))
- (:complex
- (if (eq (numeric-type-class type) 'float)
- (let ((exact (and (null lo) (null hi))))
- (case (numeric-type-format type)
- ((short-float single-float)
- (values (primitive-type-or-lose 'complex-single-float)
- exact))
- ((double-float #!-long-float long-float)
- (values (primitive-type-or-lose 'complex-double-float)
- exact))
- #!+long-float
- (long-float
- (values (primitive-type-or-lose 'complex-long-float)
- exact))
- (t
- (part-of complex))))
- (part-of complex)))
- (t
- (any)))))
- (array-type
- (if (array-type-complexp type)
- (any)
- (let* ((dims (array-type-dimensions type))
- (etype (array-type-specialized-element-type type))
- (type-spec (type-specifier etype))
- (ptype (cdr (assoc type-spec *simple-array-primitive-types*
- :test #'equal))))
- (if (and (consp dims) (null (rest dims)) ptype)
- (values (primitive-type-or-lose ptype)
- (eq (first dims) '*))
- (any)))))
- (union-type
- (if (type= type (specifier-type 'list))
- (exactly list)
- (let ((types (union-type-types type)))
- (multiple-value-bind (res exact) (primitive-type (first types))
- (dolist (type (rest types) (values res exact))
- (multiple-value-bind (ptype ptype-exact)
- (primitive-type type)
- (unless ptype-exact (setq exact nil))
- (unless (eq ptype res)
- (let ((new-ptype
- (or (maybe-numeric-type-union res ptype)
- (maybe-numeric-type-union ptype res))))
- (if new-ptype
- (setq res new-ptype)
- (return (any)))))))))))
- (member-type
- (let* ((members (member-type-members type))
- (res (primitive-type-of (first members))))
- (dolist (mem (rest members) (values res nil))
- (let ((ptype (primitive-type-of mem)))
- (unless (eq ptype res)
- (let ((new-ptype (or (maybe-numeric-type-union res ptype)
- (maybe-numeric-type-union ptype res))))
- (if new-ptype
- (setq res new-ptype)
- (return (any)))))))))
- (named-type
- (ecase (named-type-name type)
- ((t *) (values *backend-t-primitive-type* t))
- ((nil) (any))))
- (sb!xc:built-in-class
- (case (sb!xc:class-name type)
- ((complex function instance
- system-area-pointer weak-pointer)
- (values (primitive-type-or-lose (sb!xc:class-name type)) t))
- (funcallable-instance
- (part-of function))
- (base-char
- (exactly base-char))
- (cons-type
- (part-of list))
- (t
- (any))))
- (function-type
- (exactly function))
- (sb!xc:class
- (if (csubtypep type (specifier-type 'function))
- (part-of function)
- (part-of instance)))
- (ctype
- (any))))))
+ (numeric-type
+ (let ((lo (numeric-type-low type))
+ (hi (numeric-type-high type)))
+ (case (numeric-type-complexp type)
+ (:real
+ (case (numeric-type-class type)
+ (integer
+ (cond ((and hi lo)
+ (dolist (spec
+ `((positive-fixnum 0 ,sb!xc:most-positive-fixnum)
+ ,@(ecase sb!vm::n-machine-word-bits
+ (32
+ `((unsigned-byte-31
+ 0 ,(1- (ash 1 31)))
+ (unsigned-byte-32
+ 0 ,(1- (ash 1 32)))))
+ (64
+ `((unsigned-byte-63
+ 0 ,(1- (ash 1 63)))
+ (unsigned-byte-64
+ 0 ,(1- (ash 1 64))))))
+ (fixnum ,sb!xc:most-negative-fixnum
+ ,sb!xc:most-positive-fixnum)
+ ,(ecase sb!vm::n-machine-word-bits
+ (32
+ `(signed-byte-32 ,(ash -1 31)
+ ,(1- (ash 1 31))))
+ (64
+ `(signed-byte-64 ,(ash -1 63)
+ ,(1- (ash 1 63))))))
+ (if (or (< hi sb!xc:most-negative-fixnum)
+ (> lo sb!xc:most-positive-fixnum))
+ (part-of bignum)
+ (any)))
+ (let ((type (car spec))
+ (min (cadr spec))
+ (max (caddr spec)))
+ (when (<= min lo hi max)
+ (return (values
+ (primitive-type-or-lose type)
+ (and (= lo min) (= hi max))))))))
+ ((or (and hi (< hi sb!xc:most-negative-fixnum))
+ (and lo (> lo sb!xc:most-positive-fixnum)))
+ (part-of bignum))
+ (t
+ (any))))
+ (float
+ (let ((exact (and (null lo) (null hi))))
+ (case (numeric-type-format type)
+ ((short-float single-float)
+ (values (primitive-type-or-lose 'single-float)
+ exact))
+ ((double-float)
+ (values (primitive-type-or-lose 'double-float)
+ exact))
+ (t
+ (any)))))
+ (t
+ (any))))
+ (:complex
+ (if (eq (numeric-type-class type) 'float)
+ (let ((exact (and (null lo) (null hi))))
+ (case (numeric-type-format type)
+ ((short-float single-float)
+ (values (primitive-type-or-lose 'complex-single-float)
+ exact))
+ ((double-float long-float)
+ (values (primitive-type-or-lose 'complex-double-float)
+ exact))
+ (t
+ (part-of complex))))
+ (part-of complex)))
+ (t
+ (any)))))
+ (array-type
+ (if (array-type-complexp type)
+ (any)
+ (let* ((dims (array-type-dimensions type))
+ (etype (array-type-specialized-element-type type))
+ (type-spec (type-specifier etype))
+ ;; FIXME: We're _WHAT_? Testing for type equality
+ ;; with a specifier and #'EQUAL? *BOGGLE*. --
+ ;; CSR, 2003-06-24
+ (ptype (cdr (assoc type-spec *simple-array-primitive-types*
+ :test #'equal))))
+ (if (and (consp dims) (null (rest dims)) ptype)
+ (values (primitive-type-or-lose ptype)
+ (eq (first dims) '*))
+ (any)))))
+ (union-type
+ (if (type= type (specifier-type 'list))
+ (exactly list)
+ (let ((types (union-type-types type)))
+ (multiple-value-bind (res exact) (primitive-type (first types))
+ (dolist (type (rest types) (values res exact))
+ (multiple-value-bind (ptype ptype-exact)
+ (primitive-type type)
+ (unless ptype-exact (setq exact nil))
+ (unless (eq ptype res)
+ (let ((new-ptype
+ (or (maybe-numeric-type-union res ptype)
+ (maybe-numeric-type-union ptype res))))
+ (if new-ptype
+ (setq res new-ptype)
+ (return (any)))))))))))
+ (intersection-type
+ (let ((types (intersection-type-types type))
+ (res (any)))
+ ;; why NIL for the exact? Well, we assume that the
+ ;; intersection type is in fact doing something for us:
+ ;; that is, that each of the types in the intersection is
+ ;; in fact cutting off some of the type lattice. Since no
+ ;; intersection type is represented by a primitive type and
+ ;; primitive types are mutually exclusive, it follows that
+ ;; no intersection type can represent the entirety of the
+ ;; primitive type. (And NIL is the conservative answer,
+ ;; anyway). -- CSR, 2006-09-14
+ (dolist (type types (values res nil))
+ (multiple-value-bind (ptype)
+ (primitive-type type)
+ (cond
+ ;; if the result so far is (any), any improvement on
+ ;; the specificity of the primitive type is valid.
+ ((eq res (any))
+ (setq res ptype))
+ ;; if the primitive type returned is (any), the
+ ;; result so far is valid. Likewise, if the
+ ;; primitive type is the same as the result so far,
+ ;; everything is fine.
+ ((or (eq ptype (any)) (eq ptype res)))
+ ;; otherwise, we have something hairy and confusing,
+ ;; such as (and condition funcallable-instance).
+ ;; Punt.
+ (t (return (any))))))))
+ (member-type
+ (let* ((members (member-type-members type))
+ (res (primitive-type-of (first members))))
+ (dolist (mem (rest members) (values res nil))
+ (let ((ptype (primitive-type-of mem)))
+ (unless (eq ptype res)
+ (let ((new-ptype (or (maybe-numeric-type-union res ptype)
+ (maybe-numeric-type-union ptype res))))
+ (if new-ptype
+ (setq res new-ptype)
+ (return (any)))))))))
+ (named-type
+ (ecase (named-type-name type)
+ ((t *) (values *backend-t-primitive-type* t))
+ ((instance) (exactly instance))
+ ((funcallable-instance) (part-of function))
+ ((extended-sequence) (any))
+ ((nil) (any))))
+ (character-set-type
+ (let ((pairs (character-set-type-pairs type)))
+ (if (and (= (length pairs) 1)
+ (= (caar pairs) 0)
+ (= (cdar pairs) (1- sb!xc:char-code-limit)))
+ (exactly character)
+ (part-of character))))
+ (built-in-classoid
+ (case (classoid-name type)
+ ((complex function system-area-pointer weak-pointer)
+ (values (primitive-type-or-lose (classoid-name type)) t))
+ (cons-type
+ (part-of list))
+ (t
+ (any))))
+ (fun-type
+ (exactly function))
+ (classoid
+ (if (csubtypep type (specifier-type 'function))
+ (part-of function)
+ (part-of instance)))
+ (ctype
+ (if (csubtypep type (specifier-type 'function))
+ (part-of function)
+ (any)))))))
+
+(/show0 "primtype.lisp end of file")