`(setq ,x (- ,x ,delta)))
(defmacro push (x place)
- `(setq ,place (cons ,x ,place)))
+ (multiple-value-bind (dummies vals newval setter getter)
+ (get-setf-expansion place)
+ (let ((g (gensym)))
+ `(let* ((,g ,x)
+ ,@(mapcar #'list dummies vals)
+ (,(car newval) (cons ,g ,getter))
+ ,@(cdr newval))
+ ,setter))))
(defmacro dolist (iter &body body)
(let ((var (first iter))
,@body)
(cdr ,head))))
+ ;; A very simple defstruct built on lists. It supports just slot with
+ ;; an optional default initform, and it will create a constructor,
+ ;; predicate and accessors for you.
+ (defmacro defstruct (name &rest slots)
+ (unless (symbolp name)
+ (error "It is not a full defstruct implementation."))
+ (let* ((name-string (symbol-name name))
+ (slot-descriptions
+ (mapcar (lambda (sd)
+ (cond
+ ((symbolp sd)
+ (list sd))
+ ((and (listp sd) (car sd) (cddr sd))
+ sd)
+ (t
+ (error "Bad slot accessor."))))
+ slots))
+ (predicate (intern (concat name-string "P"))))
+ `(progn
+ ;; Constructor
+ (defun ,(intern (concat "MAKE-" name-string)) (&key ,@slot-descriptions)
+ (list ',name ,@(mapcar #'car slot-descriptions)))
+ ;; Predicate
+ (defun ,predicate (x)
+ (and (consp x) (eq (car x) ',name)))
+ ;; Slot accessors
+ ,@(with-collect
+ (let ((index 1))
+ (dolist (slot slot-descriptions)
+ (let ((name (car slot)))
+ (collect `(defun ,(intern (concat name-string "-" (string name))) (x)
+ (unless (,predicate x)
+ (error ,(concat "The object is not a type " name-string)))
+ (nth ,index x)))
+ (incf index)))))
+ ',name)))
+
(defun map1 (func list)
(with-collect
(while list
((funcall func (car list))
(remove-if func (cdr list)))
(t
+ ;;
(cons (car list) (remove-if func (cdr list))))))
(defun remove-if-not (func list)
(t
(error "Unsupported argument."))))
+ (defmacro do-sequence (iteration &body body)
+ (let ((seq (gensym))
+ (index (gensym)))
+ `(let ((,seq ,(second iteration)))
+ (cond
+ ;; Strings
+ ((stringp ,seq)
+ (let ((,index 0))
+ (dotimes (,index (length ,seq))
+ (let ((,(first iteration)
+ (char ,seq ,index)))
+ ,@body))))
+ ;; Lists
+ ((listp ,seq)
+ (dolist (,(first iteration) ,seq)
+ ,@body))
+ (t
+ (error "type-error!"))))))
+
(defun some (function seq)
- (cond
- ((stringp seq)
- (let ((index 0)
- (size (length seq)))
- (while (< index size)
- (when (funcall function (char seq index))
- (return-from some t))
- (incf index))
- nil))
- ((listp seq)
- (dolist (x seq nil)
- (when (funcall function x)
- (return t))))
- (t
- (error "Unknown sequence."))))
+ (do-sequence (elt seq)
+ (when (funcall function elt)
+ (return-from some t))))
(defun every (function seq)
- (cond
- ((stringp seq)
- (let ((index 0)
- (size (length seq)))
- (while (< index size)
- (unless (funcall function (char seq index))
- (return-from every nil))
- (incf index))
- t))
- ((listp seq)
- (dolist (x seq t)
- (unless (funcall function x)
- (return))))
- (t
- (error "Unknown sequence."))))
+ (do-sequence (elt seq)
+ (unless (funcall function elt)
+ (return-from every nil)))
+ t)
+
+ (defun position (elt sequence)
+ (let ((pos 0))
+ (do-sequence (x seq)
+ (when (eq elt x)
+ (return))
+ (incf pos))
+ pos))
(defun assoc (x alist)
(while alist
`(progn (rplacd ,cons ,new-value) ,new-value)
`(car ,cons))))
-<<<<<<< HEAD
- (defmacro push (x place)
- (multiple-value-bind (dummies vals newval setter getter)
- (get-setf-expansion place)
- (let ((g (gensym)))
- `(let* ((,g ,x)
- ,@(mapcar #'list dummies vals)
- (,(car newval) (cons ,g ,getter))
- ,@(cdr newval))
- ,setter))))
-=======
;; Incorrect typecase, but used in NCONC.
(defmacro typecase (x &rest clausules)
(let ((value (gensym)))
(defun nreconc (x y)
(do ((1st (cdr x) (if (endp 1st) 1st (cdr 1st)))
- (2nd x 1st) ; 2nd follows first down the list.
- (3rd y 2nd)) ;3rd follows 2nd down the list.
+ (2nd x 1st) ; 2nd follows first down the list.
+ (3rd y 2nd)) ;3rd follows 2nd down the list.
((atom 2nd) 3rd)
(rplacd 2nd 3rd)))
(defun notany (fn seq)
(not (some fn seq)))
->>>>>>> backquote
;; Packages
(concat (prin1-to-string (car last)) " . " (prin1-to-string (cdr last)))))
")"))
((arrayp form)
- (concat "#" (prin1-to-string (vector-to-list form))))
+ (concat "#" (if (zerop (length form))
+ "()"
+ (prin1-to-string (vector-to-list form)))))
((packagep form)
- (concat "#<PACKAGE " (package-name form) ">"))))
+ (concat "#<PACKAGE " (package-name form) ">"))
+ (t
+ (concat "#<javascript object>"))))
(defun write-line (x)
(write-string x)
(t
(error (concat "How should I compile " (prin1-to-string sexp) "?"))))))
+
+(defvar *compile-print-toplevels* nil)
+
+(defun truncate-string (string &optional (width 60))
+ (let ((size (length string))
+ (n (or (position #\newline string)
+ (min width (length string)))))
+ (subseq string 0 n)))
+
(defun ls-compile-toplevel (sexp &optional multiple-value-p)
(let ((*toplevel-compilations* nil))
(cond
(cdr sexp))))
(join (remove-if #'null-or-empty-p subs))))
(t
+ (when *compile-print-toplevels*
+ (let ((form-string (prin1-to-string sexp)))
+ (write-string "Compiling ")
+ (write-string (truncate-string form-string))
+ (write-line "...")))
+
(let ((code (ls-compile sexp multiple-value-p)))
(code (join-trailing (get-toplevel-compilations)
(code ";" *newline*))
(read-sequence seq in)
seq)))
- (defun ls-compile-file (filename output)
- (let ((*compiling-file* t))
+ (defun ls-compile-file (filename output &key print)
+ (let ((*compiling-file* t)
+ (*compile-print-toplevels* print))
(with-open-file (out output :direction :output :if-exists :supersede)
(write-string (read-whole-file "prelude.js") out)
(let* ((source (read-whole-file filename))
*gensym-counter* 0
*literal-counter* 0
*block-counter* 0)
- (ls-compile-file "ecmalisp.lisp" "ecmalisp.js")))
+ (ls-compile-file "ecmalisp.lisp" "ecmalisp.js" :print t)))
projects / jscl.git / blobdiff