X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcode%2Farray.lisp;h=b5e399977a0716d0c8fd8f0f162126ff141c9b48;hb=11aa29a68039d6fb3cf41d67352a6b263b1094b6;hp=8a4ddfe87b5f6c8eeca6596b1647720df0c6fcc9;hpb=a1019cb2ccde131d2466f2d70076a00059e3c71d;p=sbcl.git diff --git a/src/code/array.lisp b/src/code/array.lisp index 8a4ddfe..b5e3999 100644 --- a/src/code/array.lisp +++ b/src/code/array.lisp @@ -133,6 +133,28 @@ (bit #.sb!vm:complex-bit-vector-widetag) (t #.sb!vm:complex-vector-widetag))))) +(defglobal %%simple-array-n-bits%% (make-array (1+ sb!vm:widetag-mask))) +#.(loop for info across sb!vm:*specialized-array-element-type-properties* + collect `(setf (aref %%simple-array-n-bits%% ,(sb!vm:saetp-typecode info)) + ,(sb!vm:saetp-n-bits info)) into forms + finally (return `(progn ,@forms))) + +(defun allocate-vector-with-widetag (widetag length &optional n-bits) + (declare (type (unsigned-byte 8) widetag) + (type index length)) + (let ((n-bits (or n-bits (aref %%simple-array-n-bits%% widetag)))) + (declare (type (integer 0 256) n-bits)) + (allocate-vector widetag length + (ceiling + (* (if (or (= widetag sb!vm:simple-base-string-widetag) + #!+sb-unicode + (= widetag + sb!vm:simple-character-string-widetag)) + (1+ length) + length) + n-bits) + sb!vm:n-word-bits)))) + (defun make-array (dimensions &key (element-type t) (initial-element nil initial-element-p) @@ -159,18 +181,7 @@ (declare (type (unsigned-byte 8) type) (type (integer 0 256) n-bits)) (let* ((length (car dimensions)) - (array (allocate-vector - type - length - (ceiling - (* (if (or (= type sb!vm:simple-base-string-widetag) - #!+sb-unicode - (= type - sb!vm:simple-character-string-widetag)) - (1+ length) - length) - n-bits) - sb!vm:n-word-bits)))) + (array (allocate-vector-with-widetag type length n-bits))) (declare (type index length)) (when initial-element-p (fill array initial-element)) @@ -189,7 +200,7 @@ (let* ((total-size (reduce #'* dimensions)) (data (or displaced-to (data-vector-from-inits - dimensions total-size element-type + dimensions total-size element-type nil initial-contents initial-contents-p initial-element initial-element-p))) (array (make-array-header @@ -289,24 +300,22 @@ of specialized arrays is supported." ;;; specified array characteristics. Dimensions is only used to pass ;;; to FILL-DATA-VECTOR for error checking on the structure of ;;; initial-contents. -(defun data-vector-from-inits (dimensions total-size element-type +(defun data-vector-from-inits (dimensions total-size + element-type widetag initial-contents initial-contents-p initial-element initial-element-p) - (when (and initial-contents-p initial-element-p) - (error "cannot supply both :INITIAL-CONTENTS and :INITIAL-ELEMENT to + (when initial-element-p + (when initial-contents-p + (error "cannot supply both :INITIAL-CONTENTS and :INITIAL-ELEMENT to either MAKE-ARRAY or ADJUST-ARRAY.")) - (let ((data (if initial-element-p - (make-array total-size - :element-type element-type - :initial-element initial-element) - (make-array total-size - :element-type element-type)))) + (unless (typep initial-element element-type) + (error "~S cannot be used to initialize an array of type ~S." + initial-element element-type))) + (let ((data (if widetag + (allocate-vector-with-widetag widetag total-size) + (make-array total-size :element-type element-type)))) (cond (initial-element-p - (unless (simple-vector-p data) - (unless (typep initial-element element-type) - (error "~S cannot be used to initialize an array of type ~S." - initial-element element-type)) - (fill (the vector data) initial-element))) + (fill (the vector data) initial-element)) (initial-contents-p (fill-data-vector data dimensions initial-contents))) data)) @@ -871,7 +880,7 @@ of specialized arrays is supported." ;;;; ADJUST-ARRAY (defun adjust-array (array dimensions &key - (element-type (array-element-type array)) + (element-type (array-element-type array) element-type-p) (initial-element nil initial-element-p) (initial-contents nil initial-contents-p) fill-pointer @@ -884,7 +893,8 @@ of specialized arrays is supported." (cond ((/= (the fixnum (length (the list dimensions))) (the fixnum (array-rank array))) (error "The number of dimensions not equal to rank of array.")) - ((not (subtypep element-type (array-element-type array))) + ((and element-type-p + (not (subtypep element-type (array-element-type array)))) (error "The new element type, ~S, is incompatible with old type." element-type)) ((and fill-pointer (not (array-has-fill-pointer-p array))) @@ -899,11 +909,11 @@ of specialized arrays is supported." (cond (initial-contents-p ;; array former contents replaced by INITIAL-CONTENTS (if (or initial-element-p displaced-to) - (error "INITIAL-CONTENTS may not be specified with ~ + (error ":INITIAL-CONTENTS may not be specified with ~ the :INITIAL-ELEMENT or :DISPLACED-TO option.")) (let* ((array-size (apply #'* dimensions)) (array-data (data-vector-from-inits - dimensions array-size element-type + dimensions array-size element-type nil initial-contents initial-contents-p initial-element initial-element-p))) (if (adjustable-array-p array) @@ -957,9 +967,13 @@ of specialized arrays is supported." (setf new-data (data-vector-from-inits dimensions new-length element-type + (widetag-of old-data) initial-contents initial-contents-p initial-element initial-element-p)) + ;; Provide :END1 to avoid full call to LENGTH + ;; inside REPLACE. (replace new-data old-data + :end1 new-length :start2 old-start :end2 old-end)) (t (setf new-data (shrink-vector old-data new-length)))) @@ -981,7 +995,8 @@ of specialized arrays is supported." (> new-length old-length)) (data-vector-from-inits dimensions new-length - element-type () nil + element-type + (widetag-of old-data) () nil initial-element initial-element-p) old-data))) (if (or (zerop old-length) (zerop new-length))