Commit | Line | Data |
---|---|---|
18dd299a VS |
1 | (in-package :parenscript) |
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 () |
4577df1c | 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 TC |
23 | (list ',printer label))))) |
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 | |
29 | (cons (cons 'array (mapcar (lambda (x) `',x) x))) | |
30 | (null '(make-array)) | |
31 | (symbol (symbol-to-js-string x)) | |
32 | (number x) | |
33 | (string x))) | |
34 | ||
18dd299a VS |
35 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
36 | ;;; unary operators | |
6a46e1ef TC |
37 | (macrolet ((def-unary-ops (&rest ops) |
38 | `(progn ,@(mapcar (lambda (op) | |
39 | (let ((op (if (listp op) (car op) op)) | |
40 | (spacep (if (listp op) (second op) nil))) | |
e8fdcce7 | 41 | `(define-ps-special-form ,op (x) |
6a46e1ef TC |
42 | (list 'unary-operator ',op |
43 | (compile-parenscript-form x :expecting :expression) | |
44 | :prefix t :space ,spacep)))) | |
45 | ops)))) | |
46 | (def-unary-ops ~ ! (new t) (delete t) (void t) (typeof t))) | |
18dd299a | 47 | |
6a46e1ef TC |
48 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
49 | ;;; statements | |
e8fdcce7 | 50 | (define-ps-special-form return (&optional value) |
18dd299a VS |
51 | (list 'js-return (compile-parenscript-form value :expecting :expression))) |
52 | ||
e8fdcce7 | 53 | (define-ps-special-form throw (value) |
6a46e1ef TC |
54 | (list 'js-throw (compile-parenscript-form value :expecting :expression))) |
55 | ||
18dd299a VS |
56 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
57 | ;;; arrays | |
e8fdcce7 | 58 | (define-ps-special-form array (&rest values) |
18dd299a VS |
59 | (cons 'array-literal (mapcar (lambda (form) (compile-parenscript-form form :expecting :expression)) |
60 | values))) | |
61 | ||
e8fdcce7 | 62 | (define-ps-special-form aref (array &rest coords) |
18dd299a VS |
63 | (list 'js-aref (compile-parenscript-form array :expecting :expression) |
64 | (mapcar (lambda (form) | |
65 | (compile-parenscript-form form :expecting :expression)) | |
66 | coords))) | |
67 | ||
18dd299a VS |
68 | (defpsmacro list (&rest values) |
69 | `(array ,@values)) | |
70 | ||
79630c82 VS |
71 | (defpsmacro make-array (&rest initial-values) |
72 | `(new (*array ,@initial-values))) | |
18dd299a VS |
73 | |
74 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
75 | ;;; operators | |
e8fdcce7 | 76 | (define-ps-special-form incf (x &optional (delta 1)) |
18dd299a | 77 | (if (equal delta 1) |
6a46e1ef | 78 | (list 'unary-operator '++ (compile-parenscript-form x :expecting :expression) :prefix t) |
18dd299a VS |
79 | (list 'operator '+= (list (compile-parenscript-form x :expecting :expression) |
80 | (compile-parenscript-form delta :expecting :expression))))) | |
81 | ||
e8fdcce7 | 82 | (define-ps-special-form decf (x &optional (delta 1)) |
18dd299a | 83 | (if (equal delta 1) |
6a46e1ef | 84 | (list 'unary-operator '-- (compile-parenscript-form x :expecting :expression) :prefix t) |
18dd299a VS |
85 | (list 'operator '-= (list (compile-parenscript-form x :expecting :expression) |
86 | (compile-parenscript-form delta :expecting :expression))))) | |
87 | ||
e8fdcce7 | 88 | (define-ps-special-form - (first &rest rest) |
18dd299a | 89 | (if (null rest) |
6a46e1ef | 90 | (list 'unary-operator '- (compile-parenscript-form first :expecting :expression) :prefix t) |
18dd299a VS |
91 | (list 'operator '- (mapcar (lambda (val) (compile-parenscript-form val :expecting :expression)) |
92 | (cons first rest))))) | |
93 | ||
e8fdcce7 | 94 | (define-ps-special-form not (x) |
18dd299a VS |
95 | (let ((form (compile-parenscript-form x :expecting :expression)) |
96 | (not-op nil)) | |
97 | (if (and (eql (first form) 'operator) | |
b508414b | 98 | (= (length (third form)) 2) |
18dd299a VS |
99 | (setf not-op (case (second form) |
100 | (== '!=) | |
101 | (< '>=) | |
102 | (> '<=) | |
103 | (<= '>) | |
104 | (>= '<) | |
105 | (!= '==) | |
106 | (=== '!==) | |
107 | (!== '===) | |
108 | (t nil)))) | |
109 | (list 'operator not-op (third form)) | |
6a46e1ef | 110 | (list 'unary-operator '! 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)) | |
117 | (eql 'js-block (caar body))) | |
118 | (append (third (car body)) (flatten-blocks (cdr body))) | |
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) | |
125 | (eql 'js-literal (car form))))) | |
126 | ||
e8fdcce7 VS |
127 | (define-ps-special-form progn (&rest body) |
128 | (if (and (eq expecting :expression) (= 1 (length body))) | |
18dd299a VS |
129 | (compile-parenscript-form (car body) :expecting :expression) |
130 | (list 'js-block | |
131 | expecting | |
132 | (let* ((block (mapcar (lambda (form) | |
133 | (compile-parenscript-form form :expecting expecting)) | |
134 | body)) | |
135 | (clean-block (remove nil block)) | |
136 | (flat-block (flatten-blocks clean-block)) | |
137 | (reachable-block (append (remove-if #'constant-literal-form-p (butlast flat-block)) | |
138 | (last flat-block)))) | |
139 | reachable-block)))) | |
140 | ||
e8fdcce7 | 141 | (define-ps-special-form cond (&rest clauses) |
18dd299a VS |
142 | (ecase expecting |
143 | (:statement (list 'js-cond-statement | |
144 | (mapcar (lambda (clause) | |
145 | (destructuring-bind (test &rest body) | |
146 | clause | |
147 | (list (compile-parenscript-form test :expecting :expression) | |
148 | (compile-parenscript-form `(progn ,@body) :expecting :statement)))) | |
149 | clauses))) | |
150 | (:expression (make-cond-clauses-into-nested-ifs clauses)))) | |
151 | ||
152 | (defun make-cond-clauses-into-nested-ifs (clauses) | |
153 | (if clauses | |
154 | (destructuring-bind (test &rest body) | |
155 | (car clauses) | |
156 | (if (eq t test) | |
157 | (compile-parenscript-form `(progn ,@body) :expecting :expression) | |
e8fdcce7 VS |
158 | `(js:? ,(compile-parenscript-form test :expecting :expression) |
159 | ,(compile-parenscript-form `(progn ,@body) :expecting :expression) | |
160 | ,(make-cond-clauses-into-nested-ifs (cdr clauses))))) | |
18dd299a VS |
161 | (compile-parenscript-form nil :expecting :expression))) |
162 | ||
e8fdcce7 | 163 | (define-ps-special-form if (test then &optional else) |
18dd299a | 164 | (ecase expecting |
e8fdcce7 VS |
165 | (:statement `(js:if ,(compile-parenscript-form test :expecting :expression) |
166 | ,(compile-parenscript-form `(progn ,then)) | |
167 | ,(when else (compile-parenscript-form `(progn ,else))))) | |
168 | (:expression `(js:? ,(compile-parenscript-form test :expecting :expression) | |
169 | ,(compile-parenscript-form then :expecting :expression) | |
170 | ,(compile-parenscript-form else :expecting :expression))))) | |
171 | ||
172 | (define-ps-special-form switch (test-expr &rest clauses) | |
18dd299a | 173 | (let ((clauses (mapcar (lambda (clause) |
b508414b TC |
174 | (let ((val (car clause)) |
175 | (body (cdr clause))) | |
675edae3 TC |
176 | (cons (if (and (symbolp val) |
177 | (eq (ensure-ps-symbol val) 'default)) | |
b508414b TC |
178 | 'default |
179 | (compile-parenscript-form val :expecting :expression)) | |
18dd299a VS |
180 | (mapcar (lambda (statement) (compile-parenscript-form statement :expecting :statement)) |
181 | body)))) | |
b508414b TC |
182 | clauses)) |
183 | (expr (compile-parenscript-form test-expr :expecting :expression))) | |
18dd299a VS |
184 | (list 'js-switch expr clauses))) |
185 | ||
186 | (defpsmacro case (value &rest clauses) | |
187 | (labels ((make-clause (val body more) | |
587f3aa0 | 188 | (cond ((and (listp val) (not (eq (car val) 'quote))) |
18dd299a VS |
189 | (append (mapcar #'list (butlast val)) |
190 | (make-clause (first (last val)) body more))) | |
191 | ((member val '(t otherwise)) | |
192 | (make-clause 'default body more)) | |
193 | (more `((,val ,@body break))) | |
194 | (t `((,val ,@body)))))) | |
195 | `(switch ,value ,@(mapcon (lambda (clause) | |
196 | (make-clause (car (first clause)) | |
197 | (cdr (first clause)) | |
198 | (rest clause))) | |
199 | clauses)))) | |
200 | ||
201 | (defpsmacro when (test &rest body) | |
202 | `(if ,test (progn ,@body))) | |
203 | ||
204 | (defpsmacro unless (test &rest body) | |
205 | `(if (not ,test) (progn ,@body))) | |
206 | ||
207 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
208 | ;;; function definition | |
209 | (defun compile-function-definition (args body) | |
210 | (list (mapcar (lambda (arg) (compile-parenscript-form arg :expecting :symbol)) args) | |
211 | (let ((*enclosing-lexical-block-declarations* ())) | |
212 | ;; the first compilation will produce a list of variables we need to declare in the function body | |
213 | (compile-parenscript-form `(progn ,@body) :expecting :statement) | |
214 | ;; now declare and compile | |
58c4ef4f | 215 | (compile-parenscript-form `(progn ,@(loop for var in *enclosing-lexical-block-declarations* collect `(var ,var)) |
18dd299a VS |
216 | ,@body) :expecting :statement)))) |
217 | ||
e8fdcce7 | 218 | (define-ps-special-form %js-lambda (args &rest body) |
18dd299a VS |
219 | (cons 'js-lambda (compile-function-definition args body))) |
220 | ||
e8fdcce7 | 221 | (define-ps-special-form %js-defun (name args &rest body) |
18dd299a VS |
222 | (append (list 'js-defun name) (compile-function-definition args body))) |
223 | ||
224 | (defun parse-function-body (body) | |
225 | (let* ((docstring | |
226 | (when (stringp (first body)) | |
227 | (first body))) | |
228 | (body-forms (if docstring (rest body) body))) | |
229 | (values body-forms docstring))) | |
230 | ||
231 | (defun parse-key-spec (key-spec) | |
232 | "parses an &key parameter. Returns 4 values: | |
233 | var, init-form, keyword-name, supplied-p-var, init-form-supplied-p. | |
234 | ||
235 | Syntax of key spec: | |
236 | [&key {var | ({var | (keyword-name var)} [init-form [supplied-p-parameter]])}* | |
237 | " | |
238 | (let* ((var (cond ((symbolp key-spec) key-spec) | |
239 | ((and (listp key-spec) (symbolp (first key-spec))) (first key-spec)) | |
240 | ((and (listp key-spec) (listp (first key-spec))) (second key-spec)))) | |
241 | (keyword-name (if (and (listp key-spec) (listp (first key-spec))) | |
242 | (first (first key-spec)) | |
243 | (intern (string var) :keyword))) | |
244 | (init-form (if (listp key-spec) (second key-spec) nil)) | |
245 | (init-form-supplied-p (if (listp key-spec) t nil)) | |
246 | (supplied-p-var (if (listp key-spec) (third key-spec) nil))) | |
247 | (values var init-form keyword-name supplied-p-var init-form-supplied-p))) | |
248 | ||
249 | (defun parse-optional-spec (spec) | |
250 | "Parses an &optional parameter. Returns 3 values: var, init-form, supplied-p-var. | |
251 | [&optional {var | (var [init-form [supplied-p-parameter]])}*] " | |
252 | (let* ((var (cond ((symbolp spec) spec) | |
253 | ((and (listp spec) (first spec))))) | |
254 | (init-form (if (listp spec) (second spec))) | |
255 | (supplied-p-var (if (listp spec) (third spec)))) | |
256 | (values var init-form supplied-p-var))) | |
257 | ||
258 | (defun parse-aux-spec (spec) | |
259 | "Returns two values: variable and init-form" | |
260 | ;; [&aux {var | (var [init-form])}*]) | |
261 | (values (if (symbolp spec) spec (first spec)) | |
262 | (when (listp spec) (second spec)))) | |
263 | ||
264 | (defpsmacro defaultf (place value) | |
0e198f66 TC |
265 | `(when (=== ,place undefined) |
266 | (setf ,place ,value))) | |
18dd299a VS |
267 | |
268 | (defun parse-extended-function (lambda-list body &optional name) | |
269 | "Returns two values: the effective arguments and body for a function with | |
270 | the given lambda-list and body." | |
271 | ||
272 | ;; The lambda list is transformed as follows, since a javascript lambda list is just a | |
273 | ;; list of variable names, and you have access to the arguments variable inside the function: | |
274 | ;; * standard variables are the mapped directly into the js-lambda list | |
275 | ;; * optional variables' variable names are mapped directly into the lambda list, | |
276 | ;; and for each optional variable with name v and default value d, a form is produced | |
277 | ;; (defaultf v d) | |
278 | ;; * when any keyword variables are in the lambda list, a single 'optional-args' variable is | |
279 | ;; appended to the js-lambda list as the last argument. WITH-SLOTS is used for all | |
280 | ;; the variables with inside the body of the function, | |
281 | ;; a (with-slots ((var-name key-name)) optional-args ...) | |
282 | (declare (ignore name)) | |
283 | (multiple-value-bind (requireds optionals rest? rest keys? keys allow? aux? aux | |
284 | more? more-context more-count key-object) | |
285 | (parse-lambda-list lambda-list) | |
286 | (declare (ignore allow? aux? aux more? more-context more-count)) | |
287 | (let* ((options-var (or key-object (ps-gensym))) | |
288 | ;; optionals are of form (var default-value) | |
289 | (effective-args | |
290 | (remove-if | |
291 | #'null | |
292 | (append requireds | |
293 | (mapcar #'parse-optional-spec optionals) | |
294 | (when keys (list options-var))))) | |
295 | ;; an alist of arg -> default val | |
296 | (initform-pairs | |
297 | (remove | |
298 | nil | |
299 | (append | |
300 | ;; optional arguments first | |
301 | (mapcar #'(lambda (opt-spec) | |
302 | (multiple-value-bind (var val) (parse-optional-spec opt-spec) | |
303 | (cons var val))) | |
304 | optionals) | |
305 | (if keys? (list (cons options-var '(create)))) | |
306 | (mapcar #'(lambda (key-spec) | |
307 | (multiple-value-bind (var val x y specified?) (parse-key-spec key-spec) | |
308 | (declare (ignore x y)) | |
309 | (when specified? (cons var val)))) | |
310 | keys)))) | |
45c9f9c2 | 311 | (body-paren-forms (parse-function-body body)) ; remove documentation |
18dd299a VS |
312 | (initform-forms |
313 | (mapcar #'(lambda (default-pair) | |
314 | `(defaultf ,(car default-pair) ,(cdr default-pair))) | |
315 | initform-pairs)) | |
316 | (rest-form | |
317 | (if rest? | |
318 | (with-ps-gensyms (i) | |
f326f929 | 319 | `(progn (var ,rest (array)) |
18dd299a VS |
320 | (dotimes (,i (- arguments.length ,(length effective-args))) |
321 | (setf (aref ,rest ,i) (aref arguments (+ ,i ,(length effective-args))))))) | |
322 | `(progn))) | |
323 | (effective-body (append initform-forms (list rest-form) body-paren-forms)) | |
324 | (effective-body | |
325 | (if keys? | |
326 | (list `(with-slots ,(mapcar #'(lambda (key-spec) | |
327 | (multiple-value-bind (var x key-name) | |
328 | (parse-key-spec key-spec) | |
329 | (declare (ignore x)) | |
330 | (list var key-name))) | |
331 | keys) | |
332 | ,options-var | |
333 | ,@effective-body)) | |
334 | effective-body))) | |
335 | (values effective-args effective-body)))) | |
336 | ||
337 | (defpsmacro defun (name lambda-list &body body) | |
338 | "An extended defun macro that allows cool things like keyword arguments. | |
339 | lambda-list::= | |
340 | (var* | |
341 | [&optional {var | (var [init-form [supplied-p-parameter]])}*] | |
342 | [&rest var] | |
343 | [&key {var | ({var | (keyword-name var)} [init-form [supplied-p-parameter]])}* [&allow-other-keys]] | |
344 | [&aux {var | (var [init-form])}*])" | |
345 | (if (symbolp name) | |
346 | `(defun-function ,name ,lambda-list ,@body) | |
675edae3 | 347 | (progn (assert (and (= (length name) 2) (eq 'setf (ensure-ps-symbol (car name)))) () |
18dd299a VS |
348 | "(defun ~s ~s ...) needs to have a symbol or (setf symbol) for a name." name lambda-list) |
349 | `(defun-setf ,name ,lambda-list ,@body)))) | |
350 | ||
351 | (defpsmacro defun-function (name lambda-list &body body) | |
352 | (multiple-value-bind (effective-args effective-body) | |
353 | (parse-extended-function lambda-list body name) | |
354 | `(%js-defun ,name ,effective-args | |
355 | ,@effective-body))) | |
356 | ||
357 | (defvar *defun-setf-name-prefix* "__setf_") | |
358 | ||
359 | (defpsmacro defun-setf (setf-name lambda-list &body body) | |
360 | (let ((mangled-function-name (intern (concatenate 'string *defun-setf-name-prefix* (symbol-name (second setf-name))) | |
361 | (symbol-package (second setf-name)))) | |
362 | (function-args (cdr (ordered-set-difference lambda-list lambda-list-keywords)))) | |
363 | `(progn (defsetf ,(second setf-name) ,(cdr lambda-list) (store-var) | |
364 | `(,',mangled-function-name ,store-var ,@(list ,@function-args))) | |
365 | (defun ,mangled-function-name ,lambda-list ,@body)))) | |
366 | ||
367 | (defpsmacro lambda (lambda-list &body body) | |
368 | "An extended defun macro that allows cool things like keyword arguments. | |
369 | lambda-list::= | |
370 | (var* | |
371 | [&optional {var | (var [init-form [supplied-p-parameter]])}*] | |
372 | [&rest var] | |
373 | [&key {var | ({var | (keyword-name var)} [init-form [supplied-p-parameter]])}* [&allow-other-keys]] | |
374 | [&aux {var | (var [init-form])}*])" | |
375 | (multiple-value-bind (effective-args effective-body) | |
376 | (parse-extended-function lambda-list body) | |
377 | `(%js-lambda ,effective-args | |
378 | ,@effective-body))) | |
379 | ||
ef3be63e VS |
380 | (defpsmacro flet (fn-defs &rest body) |
381 | (flet ((process-fn-def (def) | |
382 | `(var ,(car def) (lambda ,@(cdr def))))) | |
383 | `(progn ,@(mapcar #'process-fn-def fn-defs) ,@body))) | |
384 | ||
385 | (defpsmacro labels (fn-defs &rest body) | |
386 | (flet ((process-fn-def (def) | |
387 | `(var ,(car def) (defun ,(car def) ,@(cdr def))))) | |
388 | `(progn ,@(mapcar #'process-fn-def fn-defs) ,@body))) | |
389 | ||
18dd299a | 390 | (defpsmacro defsetf-long (access-fn lambda-list (store-var) form) |
462ca010 | 391 | (setf (get-macro-spec access-fn *ps-setf-expanders*) |
18dd299a VS |
392 | (compile nil |
393 | (let ((var-bindings (ordered-set-difference lambda-list lambda-list-keywords))) | |
394 | `(lambda (access-fn-args store-form) | |
395 | (destructuring-bind ,lambda-list | |
396 | access-fn-args | |
397 | (let* ((,store-var (ps-gensym)) | |
398 | (gensymed-names (loop repeat ,(length var-bindings) collecting (ps-gensym))) | |
399 | (gensymed-arg-bindings (mapcar #'list gensymed-names (list ,@var-bindings)))) | |
400 | (destructuring-bind ,var-bindings | |
401 | gensymed-names | |
58c4ef4f VS |
402 | `(let* (,@gensymed-arg-bindings |
403 | (,,store-var ,store-form)) | |
18dd299a VS |
404 | ,,form)))))))) |
405 | nil) | |
406 | ||
407 | (defpsmacro defsetf-short (access-fn update-fn &optional docstring) | |
408 | (declare (ignore docstring)) | |
462ca010 | 409 | (setf (get-macro-spec access-fn *ps-setf-expanders*) |
18dd299a VS |
410 | (lambda (access-fn-args store-form) |
411 | `(,update-fn ,@access-fn-args ,store-form))) | |
412 | nil) | |
413 | ||
414 | (defpsmacro defsetf (access-fn &rest args) | |
415 | `(,(if (= (length args) 3) 'defsetf-long 'defsetf-short) ,access-fn ,@args)) | |
416 | ||
59217e4c VS |
417 | (defpsmacro funcall (&rest arg-form) |
418 | arg-form) | |
419 | ||
18dd299a VS |
420 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
421 | ;;; macros | |
422 | (defmacro with-temp-macro-environment ((var) &body body) | |
423 | `(let* ((,var (make-macro-env-dictionary)) | |
462ca010 | 424 | (*ps-macro-env* (cons ,var *ps-macro-env*))) |
18dd299a VS |
425 | ,@body)) |
426 | ||
e8fdcce7 | 427 | (define-ps-special-form macrolet (macros &body body) |
18dd299a VS |
428 | (with-temp-macro-environment (macro-env-dict) |
429 | (dolist (macro macros) | |
430 | (destructuring-bind (name arglist &body body) | |
431 | macro | |
b508414b | 432 | (setf (get-macro-spec name macro-env-dict) |
8cfc6fe9 | 433 | (cons nil (eval (make-ps-macro-function arglist body)))))) |
18dd299a VS |
434 | (compile-parenscript-form `(progn ,@body)))) |
435 | ||
e8fdcce7 | 436 | (define-ps-special-form symbol-macrolet (symbol-macros &body body) |
18dd299a VS |
437 | (with-temp-macro-environment (macro-env-dict) |
438 | (dolist (macro symbol-macros) | |
439 | (destructuring-bind (name expansion) | |
440 | macro | |
b508414b | 441 | (setf (get-macro-spec name macro-env-dict) |
fb469285 | 442 | (cons t (lambda (x) (declare (ignore x)) expansion))))) |
18dd299a VS |
443 | (compile-parenscript-form `(progn ,@body)))) |
444 | ||
e8fdcce7 | 445 | (define-ps-special-form defmacro (name args &body body) |
8cfc6fe9 | 446 | (eval `(defpsmacro ,name ,args ,@body)) |
18dd299a VS |
447 | nil) |
448 | ||
e8fdcce7 | 449 | (define-ps-special-form define-symbol-macro (name expansion) |
8cfc6fe9 | 450 | (eval `(define-ps-symbol-macro ,name ,expansion)) |
18dd299a VS |
451 | nil) |
452 | ||
453 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
454 | ;;; objects | |
79630c82 VS |
455 | (add-ps-literal '{}) |
456 | (define-ps-symbol-macro {} (create)) | |
457 | ||
e8fdcce7 | 458 | (define-ps-special-form create (&rest arrows) |
79630c82 VS |
459 | (list 'js-object (loop for (key-expr val-expr) on arrows by #'cddr collecting |
460 | (let ((key (compile-parenscript-form key-expr :expecting :expression))) | |
461 | (when (keywordp key) | |
462 | (setf key (list 'js-variable key))) | |
463 | (assert (or (stringp key) | |
464 | (numberp key) | |
465 | (and (listp key) | |
466 | (or (eq 'js-variable (car key)) | |
fb469285 | 467 | (eq 'quote (car key))))) |
18dd299a | 468 | () |
79630c82 VS |
469 | "Slot key ~s is not one of js-variable, keyword, string or number." key) |
470 | (cons key (compile-parenscript-form val-expr :expecting :expression)))))) | |
18dd299a | 471 | |
e8fdcce7 | 472 | (define-ps-special-form %js-slot-value (obj slot) |
fb469285 VS |
473 | (list 'js-slot-value (compile-parenscript-form obj :expecting :expression) |
474 | (if (and (listp slot) (eq 'quote (car slot))) | |
475 | (second slot) ;; assume we're quoting a symbol | |
476 | (compile-parenscript-form slot)))) | |
18dd299a | 477 | |
e8fdcce7 | 478 | (define-ps-special-form instanceof (value type) |
18dd299a VS |
479 | (list 'js-instanceof (compile-parenscript-form value :expecting :expression) |
480 | (compile-parenscript-form type :expecting :expression))) | |
481 | ||
482 | (defpsmacro slot-value (obj &rest slots) | |
483 | (if (null (rest slots)) | |
484 | `(%js-slot-value ,obj ,(first slots)) | |
485 | `(slot-value (slot-value ,obj ,(first slots)) ,@(rest slots)))) | |
486 | ||
487 | (defpsmacro with-slots (slots object &rest body) | |
488 | (flet ((slot-var (slot) (if (listp slot) (first slot) slot)) | |
b508414b | 489 | (slot-symbol (slot) (if (listp slot) (second slot) slot))) |
18dd299a | 490 | `(symbol-macrolet ,(mapcar #'(lambda (slot) |
b508414b TC |
491 | `(,(slot-var slot) (slot-value ,object ',(slot-symbol slot)))) |
492 | slots) | |
18dd299a VS |
493 | ,@body))) |
494 | ||
495 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
496 | ;;; assignment and binding | |
497 | (defun assignment-op (op) | |
498 | (case op | |
499 | (+ '+=) | |
500 | (~ '~=) | |
501 | (\& '\&=) | |
502 | (\| '\|=) | |
503 | (- '-=) | |
504 | (* '*=) | |
505 | (% '%=) | |
506 | (>> '>>=) | |
507 | (^ '^=) | |
508 | (<< '<<=) | |
509 | (>>> '>>>=) | |
510 | (/ '/=) | |
511 | (t nil))) | |
512 | ||
513 | (defun smart-setf (lhs rhs) | |
514 | (if (and (listp rhs) | |
515 | (eql 'operator (car rhs)) | |
b508414b | 516 | (member lhs (third rhs) :test #'equalp)) |
d89456ee | 517 | (let ((args-without-first (remove lhs (third rhs) :count 1 :end 1 :test #'equalp))) |
b508414b TC |
518 | (cond ((and (assignment-op (second rhs)) |
519 | (member (second rhs) '(+ *)) | |
18dd299a | 520 | (equalp lhs (first (third rhs)))) |
b508414b | 521 | (list 'operator (assignment-op (second rhs)) |
18dd299a | 522 | (list lhs (list 'operator (second rhs) args-without-first)))) |
b508414b | 523 | (t (list 'js-assign lhs rhs)))) |
18dd299a VS |
524 | (list 'js-assign lhs rhs))) |
525 | ||
e8fdcce7 | 526 | (define-ps-special-form setf1% (lhs rhs) |
18dd299a VS |
527 | (smart-setf (compile-parenscript-form lhs :expecting :expression) (compile-parenscript-form rhs :expecting :expression))) |
528 | ||
529 | (defpsmacro setf (&rest args) | |
530 | (flet ((process-setf-clause (place value-form) | |
462ca010 TC |
531 | (if (and (listp place) (get-macro-spec (car place) *ps-setf-expanders*)) |
532 | (funcall (get-macro-spec (car place) *ps-setf-expanders*) (cdr place) value-form) | |
18dd299a | 533 | (let ((exp-place (ps-macroexpand place))) |
462ca010 TC |
534 | (if (and (listp exp-place) (get-macro-spec (car exp-place) *ps-setf-expanders*)) |
535 | (funcall (get-macro-spec (car exp-place) *ps-setf-expanders*) (cdr exp-place) value-form) | |
18dd299a VS |
536 | `(setf1% ,exp-place ,value-form)))))) |
537 | (assert (evenp (length args)) () | |
538 | "~s does not have an even number of arguments." (cons 'setf args)) | |
539 | `(progn ,@(loop for (place value) on args by #'cddr collect (process-setf-clause place value))))) | |
540 | ||
1fe28ee1 TC |
541 | (defpsmacro psetf (&rest args) |
542 | (let ((vars (loop for x in args by #'cddr collect x)) | |
543 | (vals (loop for x in (cdr args) by #'cddr collect x))) | |
544 | (let ((gensyms (mapcar (lambda (x) (declare (ignore x)) (ps-gensym)) vars))) | |
545 | `(simple-let* ,(mapcar #'list gensyms vals) | |
546 | (setf ,@(mapcan #'list vars gensyms)))))) | |
547 | ||
ec227186 TC |
548 | (defun check-setq-args (args) |
549 | (let ((vars (loop for x in args by #'cddr collect x))) | |
550 | (let ((non-var (find-if (complement #'symbolp) vars))) | |
551 | (when non-var | |
552 | (error 'type-error :datum non-var :expected-type 'symbol))))) | |
553 | ||
554 | (defpsmacro setq (&rest args) | |
555 | (check-setq-args args) | |
556 | `(setf ,@args)) | |
557 | ||
558 | (defpsmacro psetq (&rest args) | |
559 | (check-setq-args args) | |
560 | `(psetf ,@args)) | |
561 | ||
e8fdcce7 | 562 | (define-ps-special-form var (name &rest value) |
58c4ef4f | 563 | (append (list 'js-var name) |
18dd299a | 564 | (when value |
58c4ef4f VS |
565 | (assert (= (length value) 1) () "Wrong number of arguments to var: ~s" `(var ,name ,@value)) |
566 | (list (compile-parenscript-form (car value) :expecting :expression))))) | |
18dd299a | 567 | |
58c4ef4f VS |
568 | (defpsmacro defvar (name &rest value) |
569 | "Note: this must be used as a top-level form, otherwise the result will be undefined behavior." | |
570 | (pushnew name *ps-special-variables*) | |
571 | (assert (or (null value) (= (length value) 1)) () "Wrong number of arguments to defvar: ~s" `(defvar ,name ,@value)) | |
572 | `(var ,name ,@value)) | |
573 | ||
3530f5e1 TC |
574 | (defun make-let-vars (bindings) |
575 | (mapcar (lambda (x) (if (listp x) (car x) x)) bindings)) | |
576 | ||
577 | (defun make-let-vals (bindings) | |
578 | (mapcar (lambda (x) (if (or (atom x) (endp (cdr x))) nil (second x))) bindings)) | |
579 | ||
58c4ef4f | 580 | (defpsmacro lexical-let* (bindings &body body) |
241c2c5b TC |
581 | `((lambda () |
582 | (let* ,bindings | |
583 | ,@body)))) | |
58c4ef4f | 584 | |
3530f5e1 TC |
585 | (defpsmacro lexical-let (bindings &body body) |
586 | `((lambda ,(make-let-vars bindings) | |
587 | ,@body) | |
588 | ,@(make-let-vals bindings))) | |
589 | ||
b5cf9e71 | 590 | (defpsmacro simple-let* (bindings &body body) |
58c4ef4f VS |
591 | (if bindings |
592 | (let ((var (if (listp (car bindings)) (caar bindings) (car bindings)))) | |
593 | `(,(if (member var *ps-special-variables*) 'let1-dynamic 'let1) ,(car bindings) | |
b5cf9e71 | 594 | (simple-let* ,(cdr bindings) ,@body))) |
58c4ef4f VS |
595 | `(progn ,@body))) |
596 | ||
ca25a40e TC |
597 | (defpsmacro simple-let (bindings &body body) |
598 | (let ((vars (mapcar (lambda (x) (if (atom x) x (first x))) bindings)) | |
599 | (vals (mapcar (lambda (x) (if (or (atom x) (endp (cdr x))) nil (second x))) bindings))) | |
600 | (let ((gensyms (mapcar (lambda (x) (ps-gensym (format nil "_js_~a" x))) vars))) | |
601 | `(simple-let* ,(mapcar #'list gensyms vals) | |
602 | (simple-let* ,(mapcar #'list vars gensyms) | |
603 | ,@(mapcar (lambda (x) `(delete ,x)) gensyms) | |
604 | ,@body))))) | |
605 | ||
b5cf9e71 TC |
606 | (defpsmacro let* (bindings &body body) |
607 | `(simple-let* ,bindings ,@body)) | |
608 | ||
da7ec1c0 | 609 | (defpsmacro let (bindings &body body) |
93296a3d | 610 | `(,(if (= 1 (length bindings)) 'simple-let* 'simple-let) ,bindings ,@body)) |
58c4ef4f | 611 | |
e8fdcce7 | 612 | (define-ps-special-form let1 (binding &rest body) |
18dd299a VS |
613 | (ecase expecting |
614 | (:statement | |
58c4ef4f | 615 | (compile-parenscript-form `(progn ,(if (atom binding) `(var ,binding) `(var ,@binding)) ,@body) :expecting :statement)) |
18dd299a | 616 | (:expression |
58c4ef4f VS |
617 | (let ((var (if (atom binding) binding (car binding))) |
618 | (variable-assignment (when (listp binding) (cons 'setf binding)))) | |
619 | (push var *enclosing-lexical-block-declarations*) | |
620 | (compile-parenscript-form `(progn ,variable-assignment ,@body) :expecting :expression))))) | |
621 | ||
622 | (defpsmacro let1-dynamic ((var value) &rest body) | |
623 | (with-ps-gensyms (temp-stack-var) | |
624 | `(progn (var ,temp-stack-var) | |
625 | (try (progn (setf ,temp-stack-var ,var) | |
626 | (setf ,var ,value) | |
627 | ,@body) | |
915342fb TC |
628 | (:finally |
629 | (setf ,var ,temp-stack-var) | |
630 | (delete ,temp-stack-var)))))) | |
18dd299a VS |
631 | |
632 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
633 | ;;; iteration | |
6a2ce72d TC |
634 | (defun make-for-vars/inits (init-forms) |
635 | (mapcar (lambda (x) | |
636 | (cons (compile-parenscript-form (if (atom x) x (first x)) :expecting :symbol) | |
083b7f89 | 637 | (compile-parenscript-form (if (atom x) nil (second x)) :expecting :expression))) |
6a2ce72d | 638 | init-forms)) |
18dd299a | 639 | |
e8fdcce7 | 640 | (define-ps-special-form labeled-for (label init-forms cond-forms step-forms &rest body) |
6a2ce72d TC |
641 | (let ((vars (make-for-vars/inits init-forms)) |
642 | (steps (mapcar (lambda (x) (compile-parenscript-form x :expecting :expression)) step-forms)) | |
643 | (tests (mapcar (lambda (x) (compile-parenscript-form x :expecting :expression)) cond-forms)) | |
644 | (body (compile-parenscript-form `(progn ,@body)))) | |
645 | (list 'js-for label vars tests steps body))) | |
646 | ||
647 | (defpsmacro for (init-forms cond-forms step-forms &body body) | |
648 | `(labeled-for nil ,init-forms ,cond-forms ,step-forms ,@body)) | |
649 | ||
650 | (defun do-make-let-bindings (decls) | |
651 | (mapcar (lambda (x) | |
652 | (if (atom x) x | |
653 | (if (endp (cdr x)) (list (car x)) | |
654 | (subseq x 0 2)))) | |
655 | decls)) | |
656 | ||
657 | (defun do-make-init-vars (decls) | |
658 | (mapcar (lambda (x) (if (atom x) x (first x))) decls)) | |
659 | ||
660 | (defun do-make-init-vals (decls) | |
661 | (mapcar (lambda (x) (if (or (atom x) (endp (cdr x))) nil (second x))) decls)) | |
662 | ||
663 | (defun do-make-for-vars/init (decls) | |
664 | (mapcar (lambda (x) | |
665 | (if (atom x) x | |
666 | (if (endp (cdr x)) x | |
667 | (subseq x 0 2)))) | |
668 | decls)) | |
669 | ||
670 | (defun do-make-for-steps (decls) | |
671 | (mapcar (lambda (x) | |
672 | `(setf ,(first x) ,(third x))) | |
673 | (remove-if (lambda (x) (or (atom x) (< (length x) 3))) decls))) | |
674 | ||
675 | (defun do-make-iter-psteps (decls) | |
676 | `(psetq | |
677 | ,@(mapcan (lambda (x) (list (first x) (third x))) | |
678 | (remove-if (lambda (x) (or (atom x) (< (length x) 3))) decls)))) | |
679 | ||
680 | (defpsmacro do* (decls (termination &optional (result nil result?)) &body body) | |
681 | (if result? | |
682 | `((lambda () | |
683 | (for ,(do-make-for-vars/init decls) ((not ,termination)) ,(do-make-for-steps decls) | |
684 | ,@body) | |
685 | (return ,result))) | |
686 | `(progn | |
687 | (for ,(do-make-for-vars/init decls) ((not ,termination)) ,(do-make-for-steps decls) | |
688 | ,@body)))) | |
689 | ||
690 | (defpsmacro do (decls (termination &optional (result nil result?)) &body body) | |
691 | (if result? | |
692 | `((lambda ,(do-make-init-vars decls) | |
693 | (for () ((not ,termination)) () | |
694 | ,@body | |
695 | ,(do-make-iter-psteps decls)) | |
696 | (return ,result)) | |
697 | ,@(do-make-init-vals decls)) | |
698 | `(let ,(do-make-let-bindings decls) | |
699 | (for () ((not ,termination)) () | |
700 | ,@body | |
701 | ,(do-make-iter-psteps decls))))) | |
702 | ||
e8fdcce7 | 703 | (define-ps-special-form for-in (decl &rest body) |
6a2ce72d TC |
704 | (list 'js-for-in |
705 | (compile-parenscript-form (first decl) :expecting :expression) | |
18dd299a | 706 | (compile-parenscript-form (second decl) :expecting :expression) |
b508414b | 707 | (compile-parenscript-form `(progn ,@body)))) |
18dd299a | 708 | |
6a2ce72d TC |
709 | (defpsmacro doeach ((var array &optional (result (values) result?)) &body body) |
710 | "Iterates over `array'. If `var' is a symbol, binds `var' to each | |
711 | element key. If `var' is a list, it must be a list of two | |
712 | symbols, (key value), which will be bound to each successive key/value | |
713 | pair in `array'." | |
714 | (if result? | |
715 | (if (consp var) | |
716 | (destructuring-bind (key val) var | |
717 | `((lambda () | |
718 | (let* (,val) | |
719 | (for-in ((var ,key) ,array) | |
720 | (setf ,val (aref ,array ,key)) | |
721 | ,@body) | |
722 | (return ,result))))) | |
723 | `((lambda () | |
724 | (for-in ((var ,var) ,array) | |
725 | ,@body) | |
726 | (return ,result)))) | |
727 | (if (consp var) | |
728 | (destructuring-bind (key val) var | |
729 | `(progn | |
730 | (let* (,val) | |
731 | (for-in ((var ,key) ,array) | |
732 | (setf ,val (aref ,array ,key)) | |
733 | ,@body)))) | |
734 | `(progn | |
735 | (for-in ((var ,var) ,array) ,@body))))) | |
736 | ||
e8fdcce7 | 737 | (define-ps-special-form while (test &rest body) |
18dd299a VS |
738 | (list 'js-while (compile-parenscript-form test :expecting :expression) |
739 | (compile-parenscript-form `(progn ,@body)))) | |
740 | ||
6a2ce72d TC |
741 | (defpsmacro dotimes ((var count &optional (result nil result?)) &rest body) |
742 | `(do* ((,var 0 (1+ ,var))) | |
743 | ((>= ,var ,count) ,@(when result? (list result))) | |
744 | ,@body)) | |
745 | ||
746 | (defpsmacro dolist ((var array &optional (result nil result?)) &body body) | |
747 | (let ((idx (ps-gensym "_js_idx")) | |
748 | (arrvar (ps-gensym "_js_arrvar"))) | |
749 | `(do* (,var | |
750 | (,arrvar ,array) | |
751 | (,idx 0 (1+ ,idx))) | |
752 | ((>= ,idx (slot-value ,arrvar 'length)) | |
753 | ,@(when result? (list result))) | |
754 | (setq ,var (aref ,arrvar ,idx)) | |
755 | ,@body))) | |
18dd299a VS |
756 | |
757 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
758 | ;;; misc | |
e8fdcce7 | 759 | (define-ps-special-form with (expression &rest body) |
18dd299a | 760 | (list 'js-with (compile-parenscript-form expression :expecting :expression) |
b508414b | 761 | (compile-parenscript-form `(progn ,@body)))) |
18dd299a | 762 | |
e8fdcce7 | 763 | (define-ps-special-form try (form &rest clauses) |
18dd299a VS |
764 | (let ((catch (cdr (assoc :catch clauses))) |
765 | (finally (cdr (assoc :finally clauses)))) | |
766 | (assert (not (cdar catch)) nil "Sorry, currently only simple catch forms are supported.") | |
767 | (assert (or catch finally) () | |
768 | "Try form should have either a catch or a finally clause or both.") | |
769 | (list 'js-try (compile-parenscript-form `(progn ,form)) | |
770 | :catch (when catch (list (compile-parenscript-form (caar catch) :expecting :symbol) | |
771 | (compile-parenscript-form `(progn ,@(cdr catch))))) | |
772 | :finally (when finally (compile-parenscript-form `(progn ,@finally)))))) | |
773 | ||
e8fdcce7 | 774 | (define-ps-special-form cc-if (test &rest body) |
18dd299a VS |
775 | (list 'cc-if test (mapcar #'compile-parenscript-form body))) |
776 | ||
e8fdcce7 | 777 | (define-ps-special-form regex (regex) |
18dd299a VS |
778 | (list 'js-regex (string regex))) |
779 | ||
e8fdcce7 | 780 | (define-ps-special-form lisp (lisp-form) |
cb8f8e58 VS |
781 | ;; (ps (foo (lisp bar))) is in effect equivalent to (ps* `(foo ,bar)) |
782 | ;; when called from inside of ps*, lisp-form has access only to the dynamic environment (like for eval) | |
cb8f8e58 | 783 | (list 'js-escape lisp-form)) |