(%compile-defvar ',name))
(setq ,name ,value)))
-(defvar t 't)
-(defvar nil 'nil)
-
(defmacro defun (name args &rest body)
`(progn
(eval-when-compile
(%compile-defun ',name))
(fsetq ,name (lambda ,args ,@body))))
+(defvar *package* (new))
+
+(defun intern (name)
+ (let ((s (get *package* name)))
+ (if s s (set *package* name (make-symbol name)))))
+
+(defun find-symbol (name)
+ (get *package* name))
+
+(defvar t 't)
+(defvar nil 'nil)
+
+(defmacro when (condition &rest body)
+ `(if ,condition (progn ,@body) nil))
+
+(defmacro unless (condition &rest body)
+ `(if ,condition nil (progn ,@body)))
+
+(defmacro dolist (iter &rest body)
+ (let ((var (first iter))
+ (g!list (make-symbol "LIST")))
+ `(let ((,g!list ,(second iter))
+ (,var nil))
+ (while ,g!list
+ (setq ,var (car ,g!list))
+ ,@body
+ (setq ,g!list (cdr ,g!list))))))
+
(defun = (x y) (= x y))
(defun + (x y) (+ x y))
(defun - (x y) (- x y))
(defun car (x) (car x))
(defun caar (x) (car (car x)))
(defun cadr (x) (car (cdr x)))
+(defun caddr (x) (car (cdr (cdr x))))
+(defun cadddr (x) (car (cdr (cdr (cdr x)))))
(defun cdr (x) (cdr x))
(defun cdar (x) (cdr (car x)))
(defun cddr (x) (cdr (cdr x)))
+(defun cdddr (x) (cdr (cdr x)))
+
+(defun first (x) (car x))
+(defun second (x) (cadr x))
+(defun third (x) (caddr x))
+(defun fourth (x) (cadddr x))
+
+(defun list (&rest args)
+ args)
+
+(defun atom (x)
+ (not (consp x)))
+
+(defun ensure-list (x)
+ (if (listp x)
+ x
+ (list x)))
(defun append (list1 list2)
(if (null list1)
(defmacro decf (x)
`(setq ,x (1- ,x)))
-(defun length (list)
+(defun list-length (list)
(let ((l 0))
(while (not (null list))
(incf l)
(setq list (cdr list)))
l))
+(defun length (seq)
+ (if (stringp seq)
+ (string-length seq)
+ (list-length seq)))
+
(defun mapcar (func list)
(if (null list)
'()
(defmacro push (x place)
`(setq ,place (cons ,x ,place)))
-(defvar *package* (new))
-
-(defun intern (name)
- (let ((s (get *package* name)))
- (if s
- s
- (set *package* name (make-symbol name)))))
-
-(defun find-symbol (name)
- (get *package* name))
-
-
(defmacro cond (&rest clausules)
(if (null clausules)
nil
(progn ,@(cdar clausules))
(cond ,@(cdr clausules))))))
+
+(defmacro case (form &rest clausules)
+ (let ((!form (make-symbol "FORM")))
+ `(let ((,!form ,form))
+ (cond
+ ,@(mapcar (lambda (clausule)
+ (if (eq (car clausule) t)
+ clausule
+ `((eql ,!form ,(car clausule))
+ ,@(cdr clausule))))
+ clausules)))))
+
+(defmacro ecase (form &rest clausules)
+ `(case ,form
+ ,@(append
+ clausules
+ `((t
+ (error "ECASE expression failed."))))))
+
(defun !reduce (func list initial)
(if (null list)
initial
(defun char= (x y) (= x y))
+(defun <= (x y) (or (< x y) (= x y)))
+(defun >= (x y) (not (< x y)))
+
+(defun listp (x)
+ (or (consp x) (null x)))
+
+(defun integerp (x)
+ (and (numberp x) (= (floor x) x)))
+
+(defun last (x)
+ (if (null (cdr x))
+ x
+ (last (cdr x))))
+
+(defun butlast (x)
+ (if (null (cdr x))
+ nil
+ (cons (car x) (butlast (cdr x)))))
+
+(defun member (x list)
+ (cond
+ ((null list)
+ nil)
+ ((eql x (car list))
+ list)
+ (t
+ (member x (cdr list)))))
+
+(defun remove (x list)
+ (cond
+ ((null list)
+ nil)
+ ((eql x (car list))
+ (remove x (cdr list)))
+ (t
+ (cons (car list) (remove x (cdr list))))))
+
+(defun digit-char-p (x)
+ (if (and (<= #\0 x) (<= x #\9))
+ (- x #\0)
+ nil))
+
+(defun parse-integer (string)
+ (let ((value 0)
+ (index 0)
+ (size (length string)))
+ (while (< index size)
+ (setq value (+ (* value 10) (digit-char-p (char string index))))
+ (incf index))
+ value))
+
+(defun every (function seq)
+ ;; string
+ (let ((ret t)
+ (index 0)
+ (size (length seq)))
+ (while (and ret (< index size))
+ (unless (funcall function (char seq index))
+ (setq ret nil))
+ (incf index))
+ ret))
+
+(defun eql (x y)
+ (eq x y))
+
+(defun assoc (x alist)
+ (cond
+ ((null alist)
+ nil)
+ ((eql x (caar alist))
+ (car alist))
+ (t
+ (assoc x (cdr alist)))))
+
+(defun string= (s1 s2)
+ (equal s1 s2))
;;;; Reader
(and (< (cdr stream) (length (car stream)))
(char (car stream) (cdr stream))))
-;; (defun %read-char (stream)
-;; (and (< (cdr stream) (length (car stream)))
-;; (prog1 (char (car stream) (cdr stream))
-;; (setcdr stream (1+ (cdr stream))))))
+(defun %read-char (stream)
+ (and (< (cdr stream) (length (car stream)))
+ (prog1 (char (car stream) (cdr stream))
+ (setcdr stream (1+ (cdr stream))))))
(defun whitespacep (ch)
(or (char= ch #\space) (char= ch #\newline) (char= ch #\tab)))
-;; (defun skip-whitespaces (stream)
-;; (let (ch)
-;; (setq ch (%peek-char stream))
-;; (while (and ch (whitespacep ch))
-;; (%read-char stream)
-;; (setq ch (%peek-char stream)))))
+(defun skip-whitespaces (stream)
+ (let (ch)
+ (setq ch (%peek-char stream))
+ (while (and ch (whitespacep ch))
+ (%read-char stream)
+ (setq ch (%peek-char stream)))))
+
+(defun terminalp (ch)
+ (or (null ch) (whitespacep ch) (char= #\) ch) (char= #\( ch)))
+
+(defun read-until (stream func)
+ (let ((string "")
+ (ch))
+ (setq ch (%peek-char stream))
+ (while (not (funcall func ch))
+ (setq string (concat string (string ch)))
+ (%read-char stream)
+ (setq ch (%peek-char stream)))
+ string))
+
+(defun skip-whitespaces-and-comments (stream)
+ (let (ch)
+ (skip-whitespaces stream)
+ (setq ch (%peek-char stream))
+ (while (and ch (char= ch #\;))
+ (read-until stream (lambda (x) (char= x #\newline)))
+ (skip-whitespaces stream)
+ (setq ch (%peek-char stream)))))
+
+(defun %read-list (stream)
+ (skip-whitespaces-and-comments stream)
+ (let ((ch (%peek-char stream)))
+ (cond
+ ((char= ch #\))
+ (%read-char stream)
+ nil)
+ ((char= ch #\.)
+ (%read-char stream)
+ (skip-whitespaces-and-comments stream)
+ (prog1 (ls-read stream)
+ (unless (char= (%read-char stream) #\))
+ (error "')' was expected."))))
+ (t
+ (cons (ls-read stream) (%read-list stream))))))
+
+(defun read-string (stream)
+ (let ((string "")
+ (ch nil))
+ (setq ch (%read-char stream))
+ (while (not (char= ch #\"))
+ (when (char= ch #\\)
+ (setq ch (%read-char stream)))
+ (setq string (concat string (string ch)))
+ (setq ch (%read-char stream)))
+ string))
+
+(defvar *eof* (make-symbol "EOF"))
+(defun ls-read (stream)
+ (skip-whitespaces-and-comments stream)
+ (let ((ch (%peek-char stream)))
+ (cond
+ ((null ch)
+ *eof*)
+ ((char= ch #\()
+ (%read-char stream)
+ (%read-list stream))
+ ((char= ch #\')
+ (%read-char stream)
+ (list 'quote (ls-read stream)))
+ ((char= ch #\`)
+ (%read-char stream)
+ (list 'backquote (ls-read stream)))
+ ((char= ch #\")
+ (%read-char stream)
+ (read-string stream))
+ ((char= ch #\,)
+ (%read-char stream)
+ (if (eql (%peek-char stream) #\@)
+ (progn (%read-char stream) (list 'unquote-splicing (ls-read stream)))
+ (list 'unquote (ls-read stream))))
+ ((char= ch #\#)
+ (%read-char stream)
+ (ecase (%read-char stream)
+ (#\'
+ (list 'function (ls-read stream)))
+ (#\\
+ (let ((cname
+ (concat (string (%read-char stream))
+ (read-until stream #'terminalp))))
+ (cond
+ ((string= cname "space") (char-code #\space))
+ ((string= cname "newline") (char-code #\newline))
+ (t (char-code (char cname 0))))))
+ (#\+
+ (let ((feature (read-until stream #'terminalp)))
+ (cond
+ ((string= feature "common-lisp")
+ (ls-read stream) ;ignore
+ (ls-read stream))
+ ((string= feature "lispstrack")
+ (ls-read stream))
+ (t
+ (error "Unknown reader form.")))))))
+ (t
+ (let ((string (read-until stream #'terminalp)))
+ (if (every #'digit-char-p string)
+ (parse-integer string)
+ (intern (string-upcase string))))))))
+
+(defun ls-read-from-string (string)
+ (ls-read (make-string-stream string)))
+
+
+;;;; Compiler
+
+(defvar *compilation-unit-checks* '())
+
+(defvar *env* '())
+(defvar *fenv* '())
+
+(defun make-binding (name type js declared)
+ (list name type js declared))
+
+(defun binding-name (b) (first b))
+(defun binding-type (b) (second b))
+(defun binding-translation (b) (third b))
+(defun binding-declared (b)
+ (and b (fourth b)))
+(defun mark-binding-as-declared (b)
+ (setcar (cdddr b) t))
+
+(let ((counter 0))
+ (defun gvarname (symbol)
+ (concat "v" (integer-to-string (incf counter))))
+
+ (defun lookup-variable (symbol env)
+ (or (assoc symbol env)
+ (assoc symbol *env*)
+ (let ((name (symbol-name symbol))
+ (binding (make-binding symbol 'variable (gvarname symbol) nil)))
+ (push binding *env*)
+ (push (lambda ()
+ (unless (binding-declared (assoc symbol *env*))
+ (error (concat "Undefined variable `" name "'"))))
+ *compilation-unit-checks*)
+ binding)))
+
+ (defun lookup-variable-translation (symbol env)
+ (binding-translation (lookup-variable symbol env)))
+
+ (defun extend-local-env (args env)
+ (append (mapcar (lambda (symbol)
+ (make-binding symbol 'variable (gvarname symbol) t))
+ args)
+ env)))
+
+(let ((counter 0))
+ (defun lookup-function (symbol env)
+ (or (assoc symbol env)
+ (assoc symbol *fenv*)
+ (let ((name (symbol-name symbol))
+ (binding
+ (make-binding symbol
+ 'function
+ (concat "f" (integer-to-string (incf counter)))
+ nil)))
+ (push binding *fenv*)
+ (push (lambda ()
+ (unless (binding-declared (assoc symbol *fenv*))
+ (error (concat "Undefined function `" name "'"))))
+ *compilation-unit-checks*)
+ binding)))
+
+ (defun lookup-function-translation (symbol env)
+ (binding-translation (lookup-function symbol env))))
+
+
+(defvar *toplevel-compilations* nil)
+
+(defun %compile-defvar (name)
+ (let ((b (lookup-variable name *env*)))
+ (mark-binding-as-declared b)
+ (push (concat "var " (binding-translation b)) *toplevel-compilations*)))
+
+(defun %compile-defun (name)
+ (let ((b (lookup-function name *env*)))
+ (mark-binding-as-declared b)
+ (push (concat "var " (binding-translation b)) *toplevel-compilations*)))
+
+(defun %compile-defmacro (name lambda)
+ (push (make-binding name 'macro lambda t) *fenv*))
+
+
+(defvar *compilations* nil)
+
+(defun ls-compile-block (sexps env fenv)
+ (join-trailing
+ (remove nil (mapcar (lambda (x)
+ (ls-compile x env fenv))
+ sexps))
+ ";
+"))
+(defmacro define-compilation (name args &rest body)
+ ;; Creates a new primitive `name' with parameters args and
+ ;; @body. The body can access to the local environment through the
+ ;; variable ENV.
+ `(push (list ',name (lambda (env fenv ,@args) ,@body))
+ *compilations*))
+
+(define-compilation if (condition true false)
+ (concat "("
+ (ls-compile condition env fenv)
+ " ? "
+ (ls-compile true env fenv)
+ " : "
+ (ls-compile false env fenv)
+ ")"))
+
+;;; Return the required args of a lambda list
+(defun lambda-list-required-argument (lambda-list)
+ (if (or (null lambda-list) (eq (car lambda-list) '&rest))
+ nil
+ (cons (car lambda-list) (lambda-list-required-argument (cdr lambda-list)))))
+
+(defun lambda-list-rest-argument (lambda-list)
+ (second (member '&rest lambda-list)))
+
+(define-compilation lambda (lambda-list &rest body)
+ (let ((required-arguments (lambda-list-required-argument lambda-list))
+ (rest-argument (lambda-list-rest-argument lambda-list)))
+ (let ((new-env (extend-local-env
+ (append (and rest-argument (list rest-argument))
+ required-arguments)
+ env)))
+ (concat "(function ("
+ (join (mapcar (lambda (x)
+ (lookup-variable-translation x new-env))
+ required-arguments)
+ ",")
+ "){"
+ *newline*
+ (if rest-argument
+ (let ((js!rest (lookup-variable-translation rest-argument new-env)))
+ (concat "var " js!rest "= false;" *newline*
+ "for (var i = arguments.length-1; i>="
+ (integer-to-string (length required-arguments))
+ "; i--)" *newline*
+ js!rest " = "
+ "{car: arguments[i], cdr: " js!rest "};"
+ *newline*))
+ "")
+ (concat (ls-compile-block (butlast body) new-env fenv)
+ "return " (ls-compile (car (last body)) new-env fenv) ";")
+ *newline*
+ "})"))))
+
+(define-compilation fsetq (var val)
+ (concat (lookup-function-translation var fenv)
+ " = "
+ (ls-compile val env fenv)))
+
+(define-compilation setq (var val)
+ (concat (lookup-variable-translation var env)
+ " = "
+ (ls-compile val env fenv)))
+
+;;; Literals
+
+(defun escape-string (string)
+ (let ((output "")
+ (index 0)
+ (size (length string)))
+ (while (< index size)
+ (let ((ch (char string index)))
+ (when (or (char= ch #\") (char= ch #\\))
+ (setq output (concat output "\\")))
+ (when (or (char= ch #\newline))
+ (setq output (concat output "\\"))
+ (setq ch #\n))
+ (setq output (concat output (string ch))))
+ (incf index))
+ output))
+
+(defun literal->js (sexp)
+ (cond
+ ((null sexp) "false")
+ ((integerp sexp) (integer-to-string sexp))
+ ((stringp sexp) (concat "\"" (escape-string sexp) "\""))
+ ((symbolp sexp) (ls-compile `(intern ,(escape-string (symbol-name sexp))) *env* *fenv*))
+ ((consp sexp) (concat "{car: "
+ (literal->js (car sexp))
+ ", cdr: "
+ (literal->js (cdr sexp)) "}"))))
+
+(let ((counter 0))
+ (defun literal (form)
+ (cond
+ ((null form)
+ (literal->js form))
+ (t
+ (let ((var (concat "l" (integer-to-string (incf counter)))))
+ (push (concat "var " var " = " (literal->js form)) *toplevel-compilations*)
+ var)))))
+
+(define-compilation quote (sexp)
+ (literal sexp))
+
+(define-compilation debug (form)
+ (concat "console.log(" (ls-compile form env fenv) ")"))
+
+(define-compilation while (pred &rest body)
+ (concat "(function(){ while("
+ (ls-compile pred env fenv)
+ "){"
+ (ls-compile-block body env fenv)
+ "}})()"))
+
+(define-compilation function (x)
+ (cond
+ ((and (listp x) (eq (car x) 'lambda))
+ (ls-compile x env fenv))
+ ((symbolp x)
+ (lookup-function-translation x fenv))))
+
+#+common-lisp
+(defmacro eval-when-compile (&body body)
+ `(eval-when (:compile-toplevel :load-toplevel :execute)
+ ,@body))
+
+(define-compilation eval-when-compile (&rest body)
+ (eval (cons 'progn body))
+ nil)
+
+(defmacro define-transformation (name args form)
+ `(define-compilation ,name ,args
+ (ls-compile ,form env fenv)))
+
+(define-transformation progn (&rest body)
+ `((lambda () ,@body)))
+
+(define-transformation let (bindings &rest body)
+ (let ((bindings (mapcar #'ensure-list bindings)))
+ `((lambda ,(mapcar 'car bindings) ,@body)
+ ,@(mapcar 'cadr bindings))))
+
+;;; A little backquote implementation without optimizations of any
+;;; kind for lispstrack.
+(defun backquote-expand-1 (form)
+ (cond
+ ((symbolp form)
+ (list 'quote form))
+ ((atom form)
+ form)
+ ((eq (car form) 'unquote)
+ (car form))
+ ((eq (car form) 'backquote)
+ (backquote-expand-1 (backquote-expand-1 (cadr form))))
+ (t
+ (cons 'append
+ (mapcar (lambda (s)
+ (cond
+ ((and (listp s) (eq (car s) 'unquote))
+ (list 'list (cadr s)))
+ ((and (listp s) (eq (car s) 'unquote-splicing))
+ (cadr s))
+ (t
+ (list 'list (backquote-expand-1 s)))))
+ form)))))
+
+(defun backquote-expand (form)
+ (if (and (listp form) (eq (car form) 'backquote))
+ (backquote-expand-1 (cadr form))
+ form))
+
+(defmacro backquote (form)
+ (backquote-expand-1 form))
+
+(define-transformation backquote (form)
+ (backquote-expand-1 form))
+
+;;; Primitives
+
+(define-compilation + (x y)
+ (concat "((" (ls-compile x env fenv) ") + (" (ls-compile y env fenv) "))"))
+
+(define-compilation - (x y)
+ (concat "((" (ls-compile x env fenv) ") - (" (ls-compile y env fenv) "))"))
+
+(define-compilation * (x y)
+ (concat "((" (ls-compile x env fenv) ") * (" (ls-compile y env fenv) "))"))
+
+(define-compilation / (x y)
+ (concat "((" (ls-compile x env fenv) ") / (" (ls-compile y env fenv) "))"))
+
+(define-compilation < (x y)
+ (concat "((" (ls-compile x env fenv) ") < (" (ls-compile y env fenv) "))"))
+
+(define-compilation = (x y)
+ (concat "((" (ls-compile x env fenv) ") == (" (ls-compile y env fenv) "))"))
+
+(define-compilation numberp (x)
+ (concat "(typeof (" (ls-compile x env fenv) ") == \"number\")"))
+
+
+(define-compilation mod (x y)
+ (concat "((" (ls-compile x env fenv) ") % (" (ls-compile y env fenv) "))"))
+
+(define-compilation floor (x)
+ (concat "(Math.floor(" (ls-compile x env fenv) "))"))
+
+(define-compilation null (x)
+ (concat "(" (ls-compile x env fenv) "== false)"))
+
+(define-compilation cons (x y)
+ (concat "{car: " (ls-compile x env fenv) ", cdr: " (ls-compile y env fenv) "}"))
+
+(define-compilation consp (x)
+ (concat "(function(){ var tmp = "
+ (ls-compile x env fenv)
+ "; return (typeof tmp == 'object' && 'car' in tmp);})()"))
+
+(define-compilation car (x)
+ (concat "(" (ls-compile x env fenv) ").car"))
+
+(define-compilation cdr (x)
+ (concat "(" (ls-compile x env fenv) ").cdr"))
+
+(define-compilation setcar (x new)
+ (concat "((" (ls-compile x env fenv) ").car = " (ls-compile new env fenv) ")"))
+
+(define-compilation setcdr (x new)
+ (concat "((" (ls-compile x env fenv) ").cdr = " (ls-compile new env fenv) ")"))
+
+(define-compilation symbolp (x)
+ (concat "(function(){ var tmp = "
+ (ls-compile x env fenv)
+ "; return (typeof tmp == 'object' && 'name' in tmp); })()"))
+
+(define-compilation make-symbol (name)
+ (concat "{name: " (ls-compile name env fenv) "}"))
+
+(define-compilation symbol-name (x)
+ (concat "(" (ls-compile x env fenv) ").name"))
+
+(define-compilation eq (x y)
+ (concat "(" (ls-compile x env fenv) " === " (ls-compile y env fenv) ")"))
+
+(define-compilation equal (x y)
+ (concat "(" (ls-compile x env fenv) " == " (ls-compile y env fenv) ")"))
+
+(define-compilation string (x)
+ (concat "String.fromCharCode(" (ls-compile x env fenv) ")"))
+
+(define-compilation stringp (x)
+ (concat "(typeof(" (ls-compile x env fenv) ") == \"string\")"))
+
+(define-compilation string-upcase (x)
+ (concat "(" (ls-compile x env fenv) ").toUpperCase()"))
+
+(define-compilation string-length (x)
+ (concat "(" (ls-compile x env fenv) ").length"))
+
+(define-compilation char (string index)
+ (concat "("
+ (ls-compile string env fenv)
+ ").charCodeAt("
+ (ls-compile index env fenv)
+ ")"))
+
+(define-compilation concat-two (string1 string2)
+ (concat "("
+ (ls-compile string1 env fenv)
+ ").concat("
+ (ls-compile string2 env fenv)
+ ")"))
+
+(define-compilation funcall (func &rest args)
+ (concat "("
+ (ls-compile func env fenv)
+ ")("
+ (join (mapcar (lambda (x)
+ (ls-compile x env fenv))
+ args)
+ ", ")
+ ")"))
+
+(define-compilation apply (func &rest args)
+ (if (null args)
+ (concat "(" (ls-compile func env fenv) ")()")
+ (let ((args (butlast args))
+ (last (car (last args))))
+ (concat "function(){" *newline*
+ "var f = " (ls-compile func env fenv) ";" *newline*
+ "var args = [" (join (mapcar (lambda (x)
+ (ls-compile x env fenv))
+ args)
+ ", ")
+ "];" *newline*
+ "var tail = (" (ls-compile last env fenv) ");" *newline*
+ "while (tail != false){" *newline*
+ " args.push(tail[0]);" *newline*
+ " args = args.slice(1);" *newline*
+ "}" *newline*
+ "return f.apply(this, args);" *newline*
+ "}" *newline*))))
+
+(define-compilation js-eval (string)
+ (concat "eval(" (ls-compile string env fenv) ")"))
+
+
+(define-compilation error (string)
+ (concat "(function (){ throw " (ls-compile string env fenv) ";" "return 0;})()"))
+
+(define-compilation new ()
+ "{}")
+
+(define-compilation get (object key)
+ (concat "(" (ls-compile object env fenv) ")[" (ls-compile key env fenv) "]"))
+
+(define-compilation set (object key value)
+ (concat "(("
+ (ls-compile object env fenv)
+ ")["
+ (ls-compile key env fenv) "]"
+ " = " (ls-compile value env fenv) ")"))
+
+(defun macrop (x)
+ (and (symbolp x) (eq (binding-type (lookup-function x *fenv*)) 'macro)))
+
+(defun ls-macroexpand-1 (form env fenv)
+ (when (macrop (car form))
+ (let ((binding (lookup-function (car form) *env*)))
+ (if (eq (binding-type binding) 'macro)
+ (apply (eval (binding-translation binding)) (cdr form))
+ form))))
+
+(defun compile-funcall (function args env fenv)
+ (cond
+ ((symbolp function)
+ (concat (lookup-function-translation function fenv)
+ "("
+ (join (mapcar (lambda (x) (ls-compile x env fenv)) args)
+ ", ")
+ ")"))
+ ((and (listp function) (eq (car function) 'lambda))
+ (concat "(" (ls-compile function env fenv) ")("
+ (join (mapcar (lambda (x) (ls-compile x env fenv)) args)
+ ", ")
+ ")"))
+ (t
+ (error (concat "Invalid function designator " (symbol-name function))))))
+
+(defun ls-compile (sexp env fenv)
+ (cond
+ ((symbolp sexp) (lookup-variable-translation sexp env))
+ ((integerp sexp) (integer-to-string sexp))
+ ((stringp sexp) (concat "\"" (escape-string sexp) "\""))
+ ((listp sexp)
+ (if (assoc (car sexp) *compilations*)
+ (let ((comp (second (assoc (car sexp) *compilations*))))
+ (apply comp env fenv (cdr sexp)))
+ (if (macrop (car sexp))
+ (ls-compile (ls-macroexpand-1 sexp env fenv) env fenv)
+ (compile-funcall (car sexp) (cdr sexp) env fenv))))))
+
+(defun ls-compile-toplevel (sexp)
+ (setq *toplevel-compilations* nil)
+ (let ((code (ls-compile sexp nil nil)))
+ (prog1
+ (join (mapcar (lambda (x) (concat x ";" *newline*))
+ *toplevel-compilations*)
+ "")
+ code
+ (setq *toplevel-compilations* nil))))
+
+
+(defmacro with-compilation-unit (&rest body)
+ `(progn
+ (setq *compilation-unit-checks* nil)
+ ,@body
+ (dolist (check *compilation-unit-checks*)
+ (funcall check))
+ (setq *compilation-unit-checks* nil)))
+
+
+#+common-lisp
+(progn
+ (defun read-whole-file (filename)
+ (with-open-file (in filename)
+ (let ((seq (make-array (file-length in) :element-type 'character)))
+ (read-sequence seq in)
+ seq)))
+
+ (defun ls-compile-file (filename output)
+ (setq *env* nil *fenv* nil)
+ (setq *compilation-unit-checks* nil)
+ (with-open-file (out output :direction :output :if-exists :supersede)
+ (let* ((source (read-whole-file filename))
+ (in (make-string-stream source)))
+ (loop
+ for x = (ls-read in)
+ until (eq x *eof*)
+ for compilation = (ls-compile-toplevel x)
+ when (plusp (length compilation))
+ do (write-line (concat compilation "; ") out))
+ (dolist (check *compilation-unit-checks*)
+ (funcall check))
+ (setq *compilation-unit-checks* nil))))
+
+ (defun bootstrap ()
+ (ls-compile-file "lispstrack.lisp" "lispstrack.js")))
+
+
+
+(defun eval (x)
+ (js-eval (ls-compile x nil nil)))
+
+
+(debug (ls-compile 't nil nil))
projects / jscl.git / blobdiff