Commit | Line | Data |
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0ce67a33 | 1 | (in-package "PARENSCRIPT") |
18dd299a VS |
2 | |
3 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
4 | ;;; literals | |
5 | (defmacro defpsliteral (name string) | |
4577df1c TC |
6 | `(progn |
7 | (add-ps-literal ',name) | |
e8fdcce7 | 8 | (define-ps-special-form ,name () |
0ce67a33 | 9 | (list 'js:literal ,string)))) |
18dd299a VS |
10 | |
11 | (defpsliteral this "this") | |
12 | (defpsliteral t "true") | |
13 | (defpsliteral true "true") | |
14 | (defpsliteral false "false") | |
15 | (defpsliteral f "false") | |
16 | (defpsliteral nil "null") | |
17 | (defpsliteral undefined "undefined") | |
18 | ||
c452748e TC |
19 | (macrolet ((def-for-literal (name printer) |
20 | `(progn | |
4577df1c | 21 | (add-ps-literal ',name) |
e8fdcce7 | 22 | (define-ps-special-form ,name (&optional label) |
c452748e | 23 | (list ',printer label))))) |
0ce67a33 VS |
24 | (def-for-literal break js:break) |
25 | (def-for-literal continue js:continue)) | |
18dd299a | 26 | |
fb469285 VS |
27 | (defpsmacro quote (x) |
28 | (typecase x | |
b4bb2bed | 29 | (cons (cons 'array (mapcar (lambda (x) (when x `',x)) x))) |
3e29db27 | 30 | (null '(array)) |
dd4442b8 VS |
31 | (keyword x) |
32 | (symbol (symbol-to-js-string x)) | |
fb469285 VS |
33 | (number x) |
34 | (string x))) | |
35 | ||
18dd299a VS |
36 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
37 | ;;; unary operators | |
6a46e1ef TC |
38 | (macrolet ((def-unary-ops (&rest ops) |
39 | `(progn ,@(mapcar (lambda (op) | |
40 | (let ((op (if (listp op) (car op) op)) | |
41 | (spacep (if (listp op) (second op) nil))) | |
e8fdcce7 | 42 | `(define-ps-special-form ,op (x) |
0ce67a33 | 43 | (list 'js:unary-operator ',op |
6a46e1ef TC |
44 | (compile-parenscript-form x :expecting :expression) |
45 | :prefix t :space ,spacep)))) | |
46 | ops)))) | |
47 | (def-unary-ops ~ ! (new t) (delete t) (void t) (typeof t))) | |
18dd299a | 48 | |
6a46e1ef TC |
49 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
50 | ;;; statements | |
e8fdcce7 | 51 | (define-ps-special-form return (&optional value) |
0ce67a33 | 52 | `(js:return ,(compile-parenscript-form value :expecting :expression))) |
18dd299a | 53 | |
e8fdcce7 | 54 | (define-ps-special-form throw (value) |
0ce67a33 | 55 | `(js:throw ,(compile-parenscript-form value :expecting :expression))) |
6a46e1ef | 56 | |
18dd299a VS |
57 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
58 | ;;; arrays | |
e8fdcce7 | 59 | (define-ps-special-form array (&rest values) |
0ce67a33 | 60 | `(js:array ,@(mapcar (lambda (form) (compile-parenscript-form form :expecting :expression)) |
18dd299a VS |
61 | values))) |
62 | ||
e8fdcce7 | 63 | (define-ps-special-form aref (array &rest coords) |
0ce67a33 VS |
64 | `(js:aref ,(compile-parenscript-form array :expecting :expression) |
65 | ,(mapcar (lambda (form) | |
66 | (compile-parenscript-form form :expecting :expression)) | |
67 | coords))) | |
18dd299a | 68 | |
18dd299a VS |
69 | (defpsmacro list (&rest values) |
70 | `(array ,@values)) | |
71 | ||
79630c82 VS |
72 | (defpsmacro make-array (&rest initial-values) |
73 | `(new (*array ,@initial-values))) | |
18dd299a VS |
74 | |
75 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
76 | ;;; operators | |
e8fdcce7 | 77 | (define-ps-special-form incf (x &optional (delta 1)) |
0ce67a33 VS |
78 | (if (eql delta 1) |
79 | `(js:unary-operator js:++ ,(compile-parenscript-form x :expecting :expression) :prefix t) | |
80 | `(js:operator js:+= ,(compile-parenscript-form x :expecting :expression) | |
81 | ,(compile-parenscript-form delta :expecting :expression)))) | |
18dd299a | 82 | |
e8fdcce7 | 83 | (define-ps-special-form decf (x &optional (delta 1)) |
0ce67a33 VS |
84 | (if (eql delta 1) |
85 | `(js:unary-operator js:-- ,(compile-parenscript-form x :expecting :expression) :prefix t) | |
86 | `(js:operator js:-= ,(compile-parenscript-form x :expecting :expression) | |
87 | ,(compile-parenscript-form delta :expecting :expression)))) | |
18dd299a | 88 | |
e8fdcce7 | 89 | (define-ps-special-form - (first &rest rest) |
0ce67a33 VS |
90 | (if rest |
91 | `(js:operator js:- ,@(mapcar (lambda (val) (compile-parenscript-form val :expecting :expression)) | |
92 | (cons first rest))) | |
93 | `(js:unary-operator js:- ,(compile-parenscript-form first :expecting :expression) :prefix t))) | |
18dd299a | 94 | |
e8fdcce7 | 95 | (define-ps-special-form not (x) |
18dd299a | 96 | (let ((form (compile-parenscript-form x :expecting :expression)) |
0ce67a33 VS |
97 | inverse-op) |
98 | (if (and (eq (car form) 'js:operator) | |
99 | (= (length (cddr form)) 2) | |
100 | (setf inverse-op (case (cadr form) | |
101 | (== '!=) | |
102 | (< '>=) | |
103 | (> '<=) | |
104 | (<= '>) | |
105 | (>= '<) | |
106 | (!= '==) | |
107 | (=== '!==) | |
108 | (!== '===)))) | |
109 | `(js:operator ,inverse-op ,@(cddr form)) | |
110 | `(js:unary-operator js:! ,form :prefix t)))) | |
18dd299a | 111 | |
18dd299a VS |
112 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
113 | ;;; control structures | |
114 | (defun flatten-blocks (body) | |
115 | (when body | |
116 | (if (and (listp (car body)) | |
0ce67a33 | 117 | (eq 'js:block (caar body))) |
fdfa77fc | 118 | (append (cdr (car body)) (flatten-blocks (cdr body))) |
18dd299a VS |
119 | (cons (car body) (flatten-blocks (cdr body)))))) |
120 | ||
121 | (defun constant-literal-form-p (form) | |
122 | (or (numberp form) | |
123 | (stringp form) | |
124 | (and (listp form) | |
0ce67a33 | 125 | (eq 'js:literal (car form))))) |
18dd299a | 126 | |
e8fdcce7 VS |
127 | (define-ps-special-form progn (&rest body) |
128 | (if (and (eq expecting :expression) (= 1 (length body))) | |
18dd299a | 129 | (compile-parenscript-form (car body) :expecting :expression) |
fdfa77fc VS |
130 | `(,(if (eq expecting :expression) 'js:|,| 'js:block) |
131 | ,@(let* ((block (flatten-blocks (remove nil (mapcar (lambda (form) | |
132 | (compile-parenscript-form form :expecting expecting)) | |
133 | body))))) | |
0ce67a33 | 134 | (append (remove-if #'constant-literal-form-p (butlast block)) (last block)))))) |
18dd299a | 135 | |
e8fdcce7 | 136 | (define-ps-special-form cond (&rest clauses) |
18dd299a | 137 | (ecase expecting |
fdfa77fc VS |
138 | (:statement `(js:if ,(compile-parenscript-form (caar clauses) :expecting :expression) |
139 | ,(compile-parenscript-form `(progn ,@(cdar clauses))) | |
140 | ,@(loop for (test . body) in (cdr clauses) appending | |
141 | (if (eq t test) | |
142 | `(:else ,(compile-parenscript-form `(progn ,@body) :expecting :statement)) | |
143 | `(:else-if ,(compile-parenscript-form test :expecting :expression) | |
144 | ,(compile-parenscript-form `(progn ,@body) :expecting :statement)))))) | |
18dd299a VS |
145 | (:expression (make-cond-clauses-into-nested-ifs clauses)))) |
146 | ||
147 | (defun make-cond-clauses-into-nested-ifs (clauses) | |
148 | (if clauses | |
149 | (destructuring-bind (test &rest body) | |
150 | (car clauses) | |
151 | (if (eq t test) | |
152 | (compile-parenscript-form `(progn ,@body) :expecting :expression) | |
e8fdcce7 VS |
153 | `(js:? ,(compile-parenscript-form test :expecting :expression) |
154 | ,(compile-parenscript-form `(progn ,@body) :expecting :expression) | |
155 | ,(make-cond-clauses-into-nested-ifs (cdr clauses))))) | |
0ce67a33 | 156 | (compile-parenscript-form nil :expecting :expression))) ;; js:null |
18dd299a | 157 | |
e8fdcce7 | 158 | (define-ps-special-form if (test then &optional else) |
18dd299a | 159 | (ecase expecting |
e8fdcce7 VS |
160 | (:statement `(js:if ,(compile-parenscript-form test :expecting :expression) |
161 | ,(compile-parenscript-form `(progn ,then)) | |
fdfa77fc | 162 | ,@(when else `(:else ,(compile-parenscript-form `(progn ,else)))))) |
e8fdcce7 VS |
163 | (:expression `(js:? ,(compile-parenscript-form test :expecting :expression) |
164 | ,(compile-parenscript-form then :expecting :expression) | |
165 | ,(compile-parenscript-form else :expecting :expression))))) | |
166 | ||
167 | (define-ps-special-form switch (test-expr &rest clauses) | |
0ce67a33 VS |
168 | `(js:switch ,(compile-parenscript-form test-expr :expecting :expression) |
169 | ,(loop for (val . body) in clauses collect | |
b39a6394 | 170 | (cons (if (eq val 'default) |
0ce67a33 VS |
171 | 'default |
172 | (compile-parenscript-form val :expecting :expression)) | |
173 | (mapcar (lambda (x) (compile-parenscript-form x :expecting :statement)) | |
174 | body))))) | |
18dd299a VS |
175 | |
176 | (defpsmacro case (value &rest clauses) | |
177 | (labels ((make-clause (val body more) | |
587f3aa0 | 178 | (cond ((and (listp val) (not (eq (car val) 'quote))) |
18dd299a VS |
179 | (append (mapcar #'list (butlast val)) |
180 | (make-clause (first (last val)) body more))) | |
181 | ((member val '(t otherwise)) | |
182 | (make-clause 'default body more)) | |
183 | (more `((,val ,@body break))) | |
184 | (t `((,val ,@body)))))) | |
185 | `(switch ,value ,@(mapcon (lambda (clause) | |
186 | (make-clause (car (first clause)) | |
187 | (cdr (first clause)) | |
188 | (rest clause))) | |
189 | clauses)))) | |
190 | ||
191 | (defpsmacro when (test &rest body) | |
192 | `(if ,test (progn ,@body))) | |
193 | ||
194 | (defpsmacro unless (test &rest body) | |
195 | `(if (not ,test) (progn ,@body))) | |
196 | ||
197 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
198 | ;;; function definition | |
199 | (defun compile-function-definition (args body) | |
200 | (list (mapcar (lambda (arg) (compile-parenscript-form arg :expecting :symbol)) args) | |
5ffb1eba VS |
201 | (let* ((*enclosing-lexical-block-declarations* ()) |
202 | (body (compile-parenscript-form `(progn ,@body))) | |
203 | (var-decls (compile-parenscript-form | |
204 | `(progn ,@(mapcar (lambda (var) `(var ,var)) *enclosing-lexical-block-declarations*))))) | |
205 | `(js:block ,@(cdr var-decls) ,@(cdr body))))) | |
18dd299a | 206 | |
e8fdcce7 | 207 | (define-ps-special-form %js-lambda (args &rest body) |
0ce67a33 | 208 | `(js:lambda ,@(compile-function-definition args body))) |
18dd299a | 209 | |
e8fdcce7 | 210 | (define-ps-special-form %js-defun (name args &rest body) |
0ce67a33 | 211 | `(js:defun ,name ,@(compile-function-definition args body))) |
18dd299a VS |
212 | |
213 | (defun parse-function-body (body) | |
214 | (let* ((docstring | |
215 | (when (stringp (first body)) | |
216 | (first body))) | |
217 | (body-forms (if docstring (rest body) body))) | |
218 | (values body-forms docstring))) | |
219 | ||
220 | (defun parse-key-spec (key-spec) | |
66acaf33 | 221 | "parses an &key parameter. Returns 5 values: |
18dd299a VS |
222 | var, init-form, keyword-name, supplied-p-var, init-form-supplied-p. |
223 | ||
224 | Syntax of key spec: | |
225 | [&key {var | ({var | (keyword-name var)} [init-form [supplied-p-parameter]])}* | |
226 | " | |
227 | (let* ((var (cond ((symbolp key-spec) key-spec) | |
228 | ((and (listp key-spec) (symbolp (first key-spec))) (first key-spec)) | |
62ddca23 | 229 | ((and (listp key-spec) (listp (first key-spec))) (second (first key-spec))))) |
18dd299a VS |
230 | (keyword-name (if (and (listp key-spec) (listp (first key-spec))) |
231 | (first (first key-spec)) | |
232 | (intern (string var) :keyword))) | |
233 | (init-form (if (listp key-spec) (second key-spec) nil)) | |
234 | (init-form-supplied-p (if (listp key-spec) t nil)) | |
235 | (supplied-p-var (if (listp key-spec) (third key-spec) nil))) | |
236 | (values var init-form keyword-name supplied-p-var init-form-supplied-p))) | |
237 | ||
238 | (defun parse-optional-spec (spec) | |
239 | "Parses an &optional parameter. Returns 3 values: var, init-form, supplied-p-var. | |
240 | [&optional {var | (var [init-form [supplied-p-parameter]])}*] " | |
241 | (let* ((var (cond ((symbolp spec) spec) | |
242 | ((and (listp spec) (first spec))))) | |
243 | (init-form (if (listp spec) (second spec))) | |
244 | (supplied-p-var (if (listp spec) (third spec)))) | |
245 | (values var init-form supplied-p-var))) | |
246 | ||
247 | (defun parse-aux-spec (spec) | |
248 | "Returns two values: variable and init-form" | |
249 | ;; [&aux {var | (var [init-form])}*]) | |
250 | (values (if (symbolp spec) spec (first spec)) | |
251 | (when (listp spec) (second spec)))) | |
252 | ||
253 | (defpsmacro defaultf (place value) | |
0e198f66 TC |
254 | `(when (=== ,place undefined) |
255 | (setf ,place ,value))) | |
18dd299a VS |
256 | |
257 | (defun parse-extended-function (lambda-list body &optional name) | |
258 | "Returns two values: the effective arguments and body for a function with | |
259 | the given lambda-list and body." | |
260 | ||
261 | ;; The lambda list is transformed as follows, since a javascript lambda list is just a | |
262 | ;; list of variable names, and you have access to the arguments variable inside the function: | |
263 | ;; * standard variables are the mapped directly into the js-lambda list | |
264 | ;; * optional variables' variable names are mapped directly into the lambda list, | |
265 | ;; and for each optional variable with name v and default value d, a form is produced | |
266 | ;; (defaultf v d) | |
66acaf33 DG |
267 | ;; * keyword variables are not included in the js-lambda list, but instead are |
268 | ;; obtained from the magic js ARGUMENTS pseudo-array. Code assigning values to | |
269 | ;; keyword vars is prepended to the body of the function. | |
18dd299a VS |
270 | (declare (ignore name)) |
271 | (multiple-value-bind (requireds optionals rest? rest keys? keys allow? aux? aux | |
272 | more? more-context more-count key-object) | |
273 | (parse-lambda-list lambda-list) | |
66acaf33 DG |
274 | (declare (ignore allow? aux? aux more? more-context more-count key-object)) |
275 | (let* (;; optionals are of form (var default-value) | |
18dd299a VS |
276 | (effective-args |
277 | (remove-if | |
278 | #'null | |
279 | (append requireds | |
66acaf33 DG |
280 | (mapcar #'parse-optional-spec optionals)))) |
281 | (opt-forms | |
282 | (mapcar #'(lambda (opt-spec) | |
283 | (multiple-value-bind (var val) (parse-optional-spec opt-spec) | |
284 | `(defaultf ,var ,val))) | |
285 | optionals)) | |
286 | (key-forms | |
287 | (when keys? | |
4525e3cd VS |
288 | (if (< *js-target-version* 1.6) |
289 | (with-ps-gensyms (n) | |
290 | (let ((decls nil) (assigns nil) (defaults nil)) | |
291 | (mapc (lambda (k) | |
292 | (multiple-value-bind (var init-form keyword-str) | |
293 | (parse-key-spec k) | |
294 | (push `(var ,var) decls) | |
295 | (push `(,keyword-str (setf ,var (aref arguments (1+ ,n)))) assigns) | |
296 | (push (list 'defaultf var init-form) defaults))) | |
297 | (reverse keys)) | |
298 | `(,@decls | |
299 | (loop :for ,n :from ,(length requireds) | |
300 | :below (length arguments) :by 2 :do | |
301 | (case (aref arguments ,n) ,@assigns)) | |
302 | ,@defaults))) | |
303 | (mapcar (lambda (k) | |
304 | (multiple-value-bind (var init-form keyword-str) | |
305 | (parse-key-spec k) | |
306 | (with-ps-gensyms (x) | |
307 | `(let ((,x ((@ *Array prototype index-of call) arguments ,keyword-str ,(length requireds)))) | |
308 | (var ,var (if (= -1 ,x) ,init-form (aref arguments (1+ ,x)))))))) | |
309 | keys)))) | |
18dd299a VS |
310 | (rest-form |
311 | (if rest? | |
312 | (with-ps-gensyms (i) | |
f326f929 | 313 | `(progn (var ,rest (array)) |
0ce67a33 | 314 | (dotimes (,i (- (slot-value arguments 'length) ,(length effective-args))) |
18dd299a VS |
315 | (setf (aref ,rest ,i) (aref arguments (+ ,i ,(length effective-args))))))) |
316 | `(progn))) | |
66acaf33 DG |
317 | (body-paren-forms (parse-function-body body)) ; remove documentation |
318 | (effective-body (append opt-forms key-forms (list rest-form) body-paren-forms))) | |
18dd299a VS |
319 | (values effective-args effective-body)))) |
320 | ||
321 | (defpsmacro defun (name lambda-list &body body) | |
322 | "An extended defun macro that allows cool things like keyword arguments. | |
323 | lambda-list::= | |
324 | (var* | |
325 | [&optional {var | (var [init-form [supplied-p-parameter]])}*] | |
326 | [&rest var] | |
327 | [&key {var | ({var | (keyword-name var)} [init-form [supplied-p-parameter]])}* [&allow-other-keys]] | |
328 | [&aux {var | (var [init-form])}*])" | |
329 | (if (symbolp name) | |
330 | `(defun-function ,name ,lambda-list ,@body) | |
b39a6394 | 331 | (progn (assert (and (listp name) (= (length name) 2) (eq 'setf (car name))) () |
18dd299a VS |
332 | "(defun ~s ~s ...) needs to have a symbol or (setf symbol) for a name." name lambda-list) |
333 | `(defun-setf ,name ,lambda-list ,@body)))) | |
334 | ||
335 | (defpsmacro defun-function (name lambda-list &body body) | |
336 | (multiple-value-bind (effective-args effective-body) | |
337 | (parse-extended-function lambda-list body name) | |
338 | `(%js-defun ,name ,effective-args | |
339 | ,@effective-body))) | |
340 | ||
341 | (defvar *defun-setf-name-prefix* "__setf_") | |
342 | ||
343 | (defpsmacro defun-setf (setf-name lambda-list &body body) | |
344 | (let ((mangled-function-name (intern (concatenate 'string *defun-setf-name-prefix* (symbol-name (second setf-name))) | |
345 | (symbol-package (second setf-name)))) | |
346 | (function-args (cdr (ordered-set-difference lambda-list lambda-list-keywords)))) | |
347 | `(progn (defsetf ,(second setf-name) ,(cdr lambda-list) (store-var) | |
348 | `(,',mangled-function-name ,store-var ,@(list ,@function-args))) | |
349 | (defun ,mangled-function-name ,lambda-list ,@body)))) | |
350 | ||
351 | (defpsmacro lambda (lambda-list &body body) | |
352 | "An extended defun macro that allows cool things like keyword arguments. | |
353 | lambda-list::= | |
354 | (var* | |
355 | [&optional {var | (var [init-form [supplied-p-parameter]])}*] | |
356 | [&rest var] | |
357 | [&key {var | ({var | (keyword-name var)} [init-form [supplied-p-parameter]])}* [&allow-other-keys]] | |
358 | [&aux {var | (var [init-form])}*])" | |
359 | (multiple-value-bind (effective-args effective-body) | |
360 | (parse-extended-function lambda-list body) | |
361 | `(%js-lambda ,effective-args | |
362 | ,@effective-body))) | |
363 | ||
ef3be63e VS |
364 | (defpsmacro flet (fn-defs &rest body) |
365 | (flet ((process-fn-def (def) | |
366 | `(var ,(car def) (lambda ,@(cdr def))))) | |
367 | `(progn ,@(mapcar #'process-fn-def fn-defs) ,@body))) | |
368 | ||
369 | (defpsmacro labels (fn-defs &rest body) | |
370 | (flet ((process-fn-def (def) | |
371 | `(var ,(car def) (defun ,(car def) ,@(cdr def))))) | |
372 | `(progn ,@(mapcar #'process-fn-def fn-defs) ,@body))) | |
373 | ||
18dd299a | 374 | (defpsmacro defsetf-long (access-fn lambda-list (store-var) form) |
462ca010 | 375 | (setf (get-macro-spec access-fn *ps-setf-expanders*) |
18dd299a VS |
376 | (compile nil |
377 | (let ((var-bindings (ordered-set-difference lambda-list lambda-list-keywords))) | |
378 | `(lambda (access-fn-args store-form) | |
379 | (destructuring-bind ,lambda-list | |
380 | access-fn-args | |
381 | (let* ((,store-var (ps-gensym)) | |
382 | (gensymed-names (loop repeat ,(length var-bindings) collecting (ps-gensym))) | |
383 | (gensymed-arg-bindings (mapcar #'list gensymed-names (list ,@var-bindings)))) | |
384 | (destructuring-bind ,var-bindings | |
385 | gensymed-names | |
58c4ef4f VS |
386 | `(let* (,@gensymed-arg-bindings |
387 | (,,store-var ,store-form)) | |
18dd299a VS |
388 | ,,form)))))))) |
389 | nil) | |
390 | ||
391 | (defpsmacro defsetf-short (access-fn update-fn &optional docstring) | |
392 | (declare (ignore docstring)) | |
462ca010 | 393 | (setf (get-macro-spec access-fn *ps-setf-expanders*) |
18dd299a VS |
394 | (lambda (access-fn-args store-form) |
395 | `(,update-fn ,@access-fn-args ,store-form))) | |
396 | nil) | |
397 | ||
398 | (defpsmacro defsetf (access-fn &rest args) | |
399 | `(,(if (= (length args) 3) 'defsetf-long 'defsetf-short) ,access-fn ,@args)) | |
400 | ||
59217e4c VS |
401 | (defpsmacro funcall (&rest arg-form) |
402 | arg-form) | |
403 | ||
18dd299a VS |
404 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
405 | ;;; macros | |
406 | (defmacro with-temp-macro-environment ((var) &body body) | |
407 | `(let* ((,var (make-macro-env-dictionary)) | |
462ca010 | 408 | (*ps-macro-env* (cons ,var *ps-macro-env*))) |
18dd299a VS |
409 | ,@body)) |
410 | ||
e8fdcce7 | 411 | (define-ps-special-form macrolet (macros &body body) |
18dd299a VS |
412 | (with-temp-macro-environment (macro-env-dict) |
413 | (dolist (macro macros) | |
414 | (destructuring-bind (name arglist &body body) | |
415 | macro | |
b508414b | 416 | (setf (get-macro-spec name macro-env-dict) |
8cfc6fe9 | 417 | (cons nil (eval (make-ps-macro-function arglist body)))))) |
18dd299a VS |
418 | (compile-parenscript-form `(progn ,@body)))) |
419 | ||
e8fdcce7 | 420 | (define-ps-special-form symbol-macrolet (symbol-macros &body body) |
18dd299a VS |
421 | (with-temp-macro-environment (macro-env-dict) |
422 | (dolist (macro symbol-macros) | |
423 | (destructuring-bind (name expansion) | |
424 | macro | |
b508414b | 425 | (setf (get-macro-spec name macro-env-dict) |
fb469285 | 426 | (cons t (lambda (x) (declare (ignore x)) expansion))))) |
18dd299a VS |
427 | (compile-parenscript-form `(progn ,@body)))) |
428 | ||
0ce67a33 | 429 | (define-ps-special-form defmacro (name args &body body) ;; should this be a macro? |
8cfc6fe9 | 430 | (eval `(defpsmacro ,name ,args ,@body)) |
18dd299a VS |
431 | nil) |
432 | ||
0ce67a33 | 433 | (define-ps-special-form define-symbol-macro (name expansion) ;; should this be a macro? |
8cfc6fe9 | 434 | (eval `(define-ps-symbol-macro ,name ,expansion)) |
18dd299a VS |
435 | nil) |
436 | ||
437 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
438 | ;;; objects | |
79630c82 VS |
439 | (add-ps-literal '{}) |
440 | (define-ps-symbol-macro {} (create)) | |
441 | ||
e8fdcce7 | 442 | (define-ps-special-form create (&rest arrows) |
0ce67a33 VS |
443 | `(js:object ,@(loop for (key-expr val-expr) on arrows by #'cddr collecting |
444 | (let ((key (compile-parenscript-form key-expr :expecting :expression))) | |
445 | (when (keywordp key) | |
446 | (setf key `(js:variable ,key))) | |
447 | (assert (or (stringp key) | |
448 | (numberp key) | |
449 | (and (listp key) | |
450 | (or (eq 'js:variable (car key)) | |
451 | (eq 'quote (car key))))) | |
452 | () | |
453 | "Slot key ~s is not one of js-variable, keyword, string or number." key) | |
454 | (cons key (compile-parenscript-form val-expr :expecting :expression)))))) | |
18dd299a | 455 | |
e8fdcce7 | 456 | (define-ps-special-form %js-slot-value (obj slot) |
0ce67a33 VS |
457 | `(js:slot-value ,(compile-parenscript-form obj :expecting :expression) |
458 | ,(if (and (listp slot) (eq 'quote (car slot))) | |
459 | (second slot) ;; assume we're quoting a symbol | |
460 | (compile-parenscript-form slot)))) | |
18dd299a | 461 | |
e8fdcce7 | 462 | (define-ps-special-form instanceof (value type) |
0ce67a33 VS |
463 | `(js:instanceof ,(compile-parenscript-form value :expecting :expression) |
464 | ,(compile-parenscript-form type :expecting :expression))) | |
18dd299a VS |
465 | |
466 | (defpsmacro slot-value (obj &rest slots) | |
467 | (if (null (rest slots)) | |
468 | `(%js-slot-value ,obj ,(first slots)) | |
469 | `(slot-value (slot-value ,obj ,(first slots)) ,@(rest slots)))) | |
470 | ||
471 | (defpsmacro with-slots (slots object &rest body) | |
472 | (flet ((slot-var (slot) (if (listp slot) (first slot) slot)) | |
b508414b | 473 | (slot-symbol (slot) (if (listp slot) (second slot) slot))) |
18dd299a | 474 | `(symbol-macrolet ,(mapcar #'(lambda (slot) |
b508414b TC |
475 | `(,(slot-var slot) (slot-value ,object ',(slot-symbol slot)))) |
476 | slots) | |
18dd299a VS |
477 | ,@body))) |
478 | ||
479 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
480 | ;;; assignment and binding | |
481 | (defun assignment-op (op) | |
482 | (case op | |
483 | (+ '+=) | |
484 | (~ '~=) | |
485 | (\& '\&=) | |
486 | (\| '\|=) | |
487 | (- '-=) | |
488 | (* '*=) | |
489 | (% '%=) | |
490 | (>> '>>=) | |
491 | (^ '^=) | |
492 | (<< '<<=) | |
493 | (>>> '>>>=) | |
494 | (/ '/=) | |
495 | (t nil))) | |
496 | ||
e8fdcce7 | 497 | (define-ps-special-form setf1% (lhs rhs) |
0ce67a33 VS |
498 | (let ((lhs (compile-parenscript-form lhs :expecting :expression)) |
499 | (rhs (compile-parenscript-form rhs :expecting :expression))) | |
500 | (if (and (listp rhs) | |
501 | (eq 'js:operator (car rhs)) | |
502 | (member (cadr rhs) '(+ *)) | |
503 | (equalp lhs (caddr rhs))) | |
504 | `(js:operator ,(assignment-op (cadr rhs)) ,lhs (js:operator ,(cadr rhs) ,@(cdddr rhs))) | |
505 | `(js:= ,lhs ,rhs)))) | |
18dd299a VS |
506 | |
507 | (defpsmacro setf (&rest args) | |
508 | (flet ((process-setf-clause (place value-form) | |
462ca010 TC |
509 | (if (and (listp place) (get-macro-spec (car place) *ps-setf-expanders*)) |
510 | (funcall (get-macro-spec (car place) *ps-setf-expanders*) (cdr place) value-form) | |
18dd299a | 511 | (let ((exp-place (ps-macroexpand place))) |
462ca010 TC |
512 | (if (and (listp exp-place) (get-macro-spec (car exp-place) *ps-setf-expanders*)) |
513 | (funcall (get-macro-spec (car exp-place) *ps-setf-expanders*) (cdr exp-place) value-form) | |
18dd299a VS |
514 | `(setf1% ,exp-place ,value-form)))))) |
515 | (assert (evenp (length args)) () | |
516 | "~s does not have an even number of arguments." (cons 'setf args)) | |
517 | `(progn ,@(loop for (place value) on args by #'cddr collect (process-setf-clause place value))))) | |
518 | ||
1fe28ee1 | 519 | (defpsmacro psetf (&rest args) |
5ffb1eba | 520 | (let ((places (loop for x in args by #'cddr collect x)) |
1fe28ee1 | 521 | (vals (loop for x in (cdr args) by #'cddr collect x))) |
5ffb1eba VS |
522 | (let ((gensyms (mapcar (lambda (x) (declare (ignore x)) (ps-gensym)) places))) |
523 | `(let ,(mapcar #'list gensyms vals) | |
524 | (setf ,@(mapcan #'list places gensyms)))))) | |
1fe28ee1 | 525 | |
ec227186 TC |
526 | (defun check-setq-args (args) |
527 | (let ((vars (loop for x in args by #'cddr collect x))) | |
528 | (let ((non-var (find-if (complement #'symbolp) vars))) | |
529 | (when non-var | |
530 | (error 'type-error :datum non-var :expected-type 'symbol))))) | |
531 | ||
532 | (defpsmacro setq (&rest args) | |
533 | (check-setq-args args) | |
534 | `(setf ,@args)) | |
535 | ||
536 | (defpsmacro psetq (&rest args) | |
537 | (check-setq-args args) | |
538 | `(psetf ,@args)) | |
539 | ||
0ce67a33 VS |
540 | (define-ps-special-form var (name &optional (value (values) value-provided?) documentation) |
541 | (declare (ignore documentation)) | |
5ffb1eba VS |
542 | (ecase expecting |
543 | (:statement | |
544 | `(js:var ,name ,@(when value-provided? | |
545 | (list (compile-parenscript-form value :expecting :expression))))) | |
546 | (:expression | |
547 | (push name *enclosing-lexical-block-declarations*) | |
548 | (when value-provided? | |
549 | (compile-parenscript-form `(setf ,name ,value) :expecting :expression))))) | |
18dd299a | 550 | |
0ce67a33 | 551 | (defpsmacro defvar (name &optional (value (values) value-provided?) documentation) |
5ffb1eba VS |
552 | ;; this must be used as a top-level form, otherwise the resulting behavior will be undefined. |
553 | (declare (ignore documentation)) | |
58c4ef4f | 554 | (pushnew name *ps-special-variables*) |
0ce67a33 | 555 | `(var ,name ,@(when value-provided? (list value)))) |
58c4ef4f | 556 | |
5ffb1eba VS |
557 | (defpsmacro let (bindings &body body) |
558 | (flet ((add-renamed-vars (bindings predicate) | |
559 | (mapcar (lambda (x) (append x (list (ps-gensym (car x))))) | |
560 | (remove-if predicate bindings :key #'car))) | |
561 | (var (x) (first x)) | |
562 | (val (x) (second x)) | |
563 | (renamed (x) (third x))) | |
564 | (let* ((normalized-bindings (mapcar (lambda (x) (if (symbolp x) `(,x nil) x)) bindings)) | |
565 | (lexical-bindings (add-renamed-vars normalized-bindings #'ps-special-variable-p)) | |
566 | (dynamic-bindings (add-renamed-vars normalized-bindings (complement #'ps-special-variable-p))) | |
567 | (renamed-body `(symbol-macrolet ,(mapcar (lambda (x) (list (var x) (renamed x))) | |
568 | lexical-bindings) | |
569 | ,@body))) | |
570 | `(progn | |
571 | ,@(mapcar (lambda (x) `(var ,(renamed x) ,(val x))) lexical-bindings) | |
572 | ,(if dynamic-bindings | |
573 | `(progn ,@(mapcar (lambda (x) `(var ,(renamed x))) dynamic-bindings) | |
574 | (try (progn (setf ,@(loop for x in dynamic-bindings append | |
575 | `(,(renamed x) ,(var x) | |
576 | ,(var x) ,(val x)))) | |
577 | ,renamed-body) | |
578 | (:finally | |
579 | (setf ,@(mapcan (lambda (x) `(,(var x) ,(renamed x))) dynamic-bindings))))) | |
580 | renamed-body))))) | |
3530f5e1 | 581 | |
5ffb1eba | 582 | (defpsmacro let* (bindings &body body) |
58c4ef4f | 583 | (if bindings |
5ffb1eba VS |
584 | `(let (,(car bindings)) |
585 | (let* ,(cdr bindings) | |
586 | ,@body)) | |
58c4ef4f VS |
587 | `(progn ,@body))) |
588 | ||
18dd299a VS |
589 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
590 | ;;; iteration | |
6a2ce72d TC |
591 | (defun make-for-vars/inits (init-forms) |
592 | (mapcar (lambda (x) | |
593 | (cons (compile-parenscript-form (if (atom x) x (first x)) :expecting :symbol) | |
083b7f89 | 594 | (compile-parenscript-form (if (atom x) nil (second x)) :expecting :expression))) |
6a2ce72d | 595 | init-forms)) |
18dd299a | 596 | |
e8fdcce7 | 597 | (define-ps-special-form labeled-for (label init-forms cond-forms step-forms &rest body) |
0ce67a33 VS |
598 | `(js:for ,label |
599 | ,(make-for-vars/inits init-forms) | |
600 | ,(mapcar (lambda (x) (compile-parenscript-form x :expecting :expression)) cond-forms) | |
601 | ,(mapcar (lambda (x) (compile-parenscript-form x :expecting :expression)) step-forms) | |
602 | ,(compile-parenscript-form `(progn ,@body)))) | |
6a2ce72d TC |
603 | |
604 | (defpsmacro for (init-forms cond-forms step-forms &body body) | |
605 | `(labeled-for nil ,init-forms ,cond-forms ,step-forms ,@body)) | |
606 | ||
607 | (defun do-make-let-bindings (decls) | |
608 | (mapcar (lambda (x) | |
609 | (if (atom x) x | |
610 | (if (endp (cdr x)) (list (car x)) | |
611 | (subseq x 0 2)))) | |
612 | decls)) | |
613 | ||
614 | (defun do-make-init-vars (decls) | |
615 | (mapcar (lambda (x) (if (atom x) x (first x))) decls)) | |
616 | ||
617 | (defun do-make-init-vals (decls) | |
618 | (mapcar (lambda (x) (if (or (atom x) (endp (cdr x))) nil (second x))) decls)) | |
619 | ||
620 | (defun do-make-for-vars/init (decls) | |
621 | (mapcar (lambda (x) | |
622 | (if (atom x) x | |
623 | (if (endp (cdr x)) x | |
624 | (subseq x 0 2)))) | |
625 | decls)) | |
626 | ||
627 | (defun do-make-for-steps (decls) | |
628 | (mapcar (lambda (x) | |
629 | `(setf ,(first x) ,(third x))) | |
630 | (remove-if (lambda (x) (or (atom x) (< (length x) 3))) decls))) | |
631 | ||
632 | (defun do-make-iter-psteps (decls) | |
633 | `(psetq | |
634 | ,@(mapcan (lambda (x) (list (first x) (third x))) | |
635 | (remove-if (lambda (x) (or (atom x) (< (length x) 3))) decls)))) | |
636 | ||
637 | (defpsmacro do* (decls (termination &optional (result nil result?)) &body body) | |
638 | (if result? | |
639 | `((lambda () | |
640 | (for ,(do-make-for-vars/init decls) ((not ,termination)) ,(do-make-for-steps decls) | |
641 | ,@body) | |
642 | (return ,result))) | |
643 | `(progn | |
644 | (for ,(do-make-for-vars/init decls) ((not ,termination)) ,(do-make-for-steps decls) | |
645 | ,@body)))) | |
646 | ||
647 | (defpsmacro do (decls (termination &optional (result nil result?)) &body body) | |
648 | (if result? | |
649 | `((lambda ,(do-make-init-vars decls) | |
650 | (for () ((not ,termination)) () | |
651 | ,@body | |
652 | ,(do-make-iter-psteps decls)) | |
653 | (return ,result)) | |
654 | ,@(do-make-init-vals decls)) | |
655 | `(let ,(do-make-let-bindings decls) | |
656 | (for () ((not ,termination)) () | |
657 | ,@body | |
658 | ,(do-make-iter-psteps decls))))) | |
659 | ||
0ce67a33 | 660 | (define-ps-special-form for-in ((var object) &rest body) |
5ffb1eba | 661 | `(js:for-in ,(compile-parenscript-form var :expecting :expression) |
0ce67a33 VS |
662 | ,(compile-parenscript-form object :expecting :expression) |
663 | ,(compile-parenscript-form `(progn ,@body)))) | |
6a2ce72d | 664 | |
e8fdcce7 | 665 | (define-ps-special-form while (test &rest body) |
0ce67a33 VS |
666 | `(js:while ,(compile-parenscript-form test :expecting :expression) |
667 | ,(compile-parenscript-form `(progn ,@body)))) | |
18dd299a | 668 | |
6a2ce72d TC |
669 | (defpsmacro dotimes ((var count &optional (result nil result?)) &rest body) |
670 | `(do* ((,var 0 (1+ ,var))) | |
671 | ((>= ,var ,count) ,@(when result? (list result))) | |
672 | ,@body)) | |
673 | ||
674 | (defpsmacro dolist ((var array &optional (result nil result?)) &body body) | |
675 | (let ((idx (ps-gensym "_js_idx")) | |
676 | (arrvar (ps-gensym "_js_arrvar"))) | |
677 | `(do* (,var | |
678 | (,arrvar ,array) | |
679 | (,idx 0 (1+ ,idx))) | |
680 | ((>= ,idx (slot-value ,arrvar 'length)) | |
681 | ,@(when result? (list result))) | |
682 | (setq ,var (aref ,arrvar ,idx)) | |
683 | ,@body))) | |
18dd299a VS |
684 | |
685 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
686 | ;;; misc | |
e8fdcce7 | 687 | (define-ps-special-form with (expression &rest body) |
0ce67a33 VS |
688 | `(js:with ,(compile-parenscript-form expression :expecting :expression) |
689 | ,(compile-parenscript-form `(progn ,@body)))) | |
18dd299a | 690 | |
e8fdcce7 | 691 | (define-ps-special-form try (form &rest clauses) |
18dd299a VS |
692 | (let ((catch (cdr (assoc :catch clauses))) |
693 | (finally (cdr (assoc :finally clauses)))) | |
694 | (assert (not (cdar catch)) nil "Sorry, currently only simple catch forms are supported.") | |
695 | (assert (or catch finally) () | |
696 | "Try form should have either a catch or a finally clause or both.") | |
0ce67a33 VS |
697 | `(js:try ,(compile-parenscript-form `(progn ,form)) |
698 | :catch ,(when catch (list (compile-parenscript-form (caar catch) :expecting :symbol) | |
18dd299a | 699 | (compile-parenscript-form `(progn ,@(cdr catch))))) |
0ce67a33 | 700 | :finally ,(when finally (compile-parenscript-form `(progn ,@finally)))))) |
18dd299a | 701 | |
e8fdcce7 | 702 | (define-ps-special-form cc-if (test &rest body) |
0ce67a33 | 703 | `(js:cc-if ,test ,@(mapcar #'compile-parenscript-form body))) |
18dd299a | 704 | |
e8fdcce7 | 705 | (define-ps-special-form regex (regex) |
0ce67a33 | 706 | `(js:regex ,(string regex))) |
18dd299a | 707 | |
ceb1f277 VS |
708 | (define-ps-special-form lisp (lisp-form) |
709 | ;; (ps (foo (lisp bar))) is in effect equivalent to (ps* `(foo ,bar)) | |
710 | ;; when called from inside of ps*, lisp-form has access only to the dynamic environment (like for eval) | |
711 | `(js:escape (ps1* ,lisp-form))) | |
8877a380 VS |
712 | |
713 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
714 | ;;; eval-when | |
715 | (define-ps-special-form eval-when (situation-list &body body) | |
716 | "(eval-when (situation*) body-form*) | |
717 | ||
718 | The body forms are evaluated only during the given SITUATION. The accepted SITUATIONS are | |
719 | :load-toplevel, :compile-toplevel, and :execute. The code in BODY-FORM is assumed to be | |
720 | COMMON-LISP code in :compile-toplevel and :load-toplevel sitations, and parenscript code in | |
721 | :execute. " | |
722 | (when (and (member :compile-toplevel situation-list) | |
723 | (member *toplevel-compilation-level* '(:toplevel :inside-toplevel-form))) | |
724 | (eval `(progn ,@body))) | |
725 | (if (member :execute situation-list) | |
726 | (compile-parenscript-form `(progn ,@body) :expecting expecting) | |
727 | (compile-parenscript-form `(progn) :expecting expecting))) |