Commit | Line | Data |
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dfbc6e9d | 1 | ;;; Guile Emacs Lisp |
51248e6e | 2 | |
c32b7c4c | 3 | ;; Copyright (C) 2009, 2010, 2011, 2013 Free Software Foundation, Inc. |
51248e6e DK |
4 | |
5 | ;; This program is free software; you can redistribute it and/or modify | |
6 | ;; it under the terms of the GNU General Public License as published by | |
e4257331 | 7 | ;; the Free Software Foundation; either version 3, or (at your option) |
51248e6e | 8 | ;; any later version. |
abcf4a9e | 9 | ;; |
51248e6e DK |
10 | ;; This program is distributed in the hope that it will be useful, |
11 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | ;; GNU General Public License for more details. | |
abcf4a9e | 14 | ;; |
51248e6e DK |
15 | ;; You should have received a copy of the GNU General Public License |
16 | ;; along with this program; see the file COPYING. If not, write to | |
17 | ;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
18 | ;; Boston, MA 02111-1307, USA. | |
19 | ||
20 | ;;; Code: | |
21 | ||
22 | (define-module (language elisp compile-tree-il) | |
5d221ca3 | 23 | #:use-module (language elisp bindings) |
44ae163d | 24 | #:use-module (language elisp runtime) |
51248e6e DK |
25 | #:use-module (language tree-il) |
26 | #:use-module (system base pmatch) | |
74c009da | 27 | #:use-module (system base compile) |
dfbc6e9d | 28 | #:use-module (srfi srfi-1) |
eda83f0a BT |
29 | #:use-module (srfi srfi-8) |
30 | #:use-module (srfi srfi-11) | |
31 | #:use-module (srfi srfi-26) | |
0faf3965 | 32 | #:use-module (ice-9 format) |
44ae163d BT |
33 | #:export (compile-tree-il |
34 | compile-progn | |
80687f2e | 35 | compile-eval-when-compile |
44ae163d BT |
36 | compile-if |
37 | compile-defconst | |
38 | compile-defvar | |
39 | compile-setq | |
40 | compile-let | |
44ae163d | 41 | compile-flet |
1c2f9636 | 42 | compile-labels |
44ae163d | 43 | compile-let* |
44ae163d | 44 | compile-guile-ref |
4d0dda0a | 45 | compile-guile-private-ref |
44ae163d | 46 | compile-guile-primitive |
0faf3965 | 47 | compile-%function |
44ae163d BT |
48 | compile-function |
49 | compile-defmacro | |
50 | compile-defun | |
0dbfdeef | 51 | #{compile-`}# |
03e00c5c | 52 | compile-quote |
d273b826 | 53 | compile-%funcall |
03e00c5c | 54 | compile-%set-lexical-binding-mode)) |
51248e6e | 55 | |
c983a199 BT |
56 | ;;; Certain common parameters (like the bindings data structure or |
57 | ;;; compiler options) are not always passed around but accessed using | |
58 | ;;; fluids to simulate dynamic binding (hey, this is about elisp). | |
a90d9c85 | 59 | |
c983a199 BT |
60 | ;;; The bindings data structure to keep track of symbol binding related |
61 | ;;; data. | |
abcf4a9e | 62 | |
a90d9c85 DK |
63 | (define bindings-data (make-fluid)) |
64 | ||
c983a199 BT |
65 | ;;; Find the source properties of some parsed expression if there are |
66 | ;;; any associated with it. | |
51248e6e DK |
67 | |
68 | (define (location x) | |
69 | (and (pair? x) | |
70 | (let ((props (source-properties x))) | |
71 | (and (not (null? props)) | |
72 | props)))) | |
73 | ||
c983a199 | 74 | ;;; Values to use for Elisp's nil and t. |
4530432e | 75 | |
f4e5e411 BT |
76 | (define (nil-value loc) |
77 | (make-const loc (@ (language elisp runtime) nil-value))) | |
4530432e | 78 | |
f4e5e411 BT |
79 | (define (t-value loc) |
80 | (make-const loc (@ (language elisp runtime) t-value))) | |
4530432e | 81 | |
c983a199 | 82 | ;;; Modules that contain the value and function slot bindings. |
344927c3 DK |
83 | |
84 | (define runtime '(language elisp runtime)) | |
abcf4a9e | 85 | |
37099846 | 86 | (define value-slot (@ (language elisp runtime) value-slot-module)) |
344927c3 | 87 | |
abcf4a9e | 88 | (define function-slot (@ (language elisp runtime) function-slot-module)) |
344927c3 | 89 | |
c983a199 BT |
90 | ;;; The backquoting works the same as quasiquotes in Scheme, but the |
91 | ;;; forms are named differently; to make easy adaptions, we define these | |
92 | ;;; predicates checking for a symbol being the car of an | |
93 | ;;; unquote/unquote-splicing/backquote form. | |
9b5ff6a6 | 94 | |
9b5ff6a6 | 95 | (define (unquote? sym) |
0dbfdeef | 96 | (and (symbol? sym) (eq? sym '#{,}#))) |
9b5ff6a6 DK |
97 | |
98 | (define (unquote-splicing? sym) | |
0dbfdeef | 99 | (and (symbol? sym) (eq? sym '#{,@}#))) |
9b5ff6a6 | 100 | |
c983a199 | 101 | ;;; Build a call to a primitive procedure nicely. |
50abfe76 DK |
102 | |
103 | (define (call-primitive loc sym . args) | |
a881a4ae | 104 | (make-primcall loc sym args)) |
50abfe76 | 105 | |
c983a199 BT |
106 | ;;; Error reporting routine for syntax/compilation problems or build |
107 | ;;; code for a runtime-error output. | |
344927c3 DK |
108 | |
109 | (define (report-error loc . args) | |
110 | (apply error args)) | |
111 | ||
eaeda0d5 BT |
112 | (define (access-variable loc symbol handle-lexical handle-dynamic) |
113 | (cond | |
114 | ((get-lexical-binding (fluid-ref bindings-data) symbol) | |
115 | => handle-lexical) | |
116 | (else | |
117 | (handle-dynamic)))) | |
344927c3 | 118 | |
eaeda0d5 | 119 | (define (reference-variable loc symbol) |
f4e5e411 BT |
120 | (access-variable |
121 | loc | |
eaeda0d5 BT |
122 | symbol |
123 | (lambda (lexical) | |
0faf3965 RT |
124 | (if (symbol? lexical) |
125 | (make-lexical-ref loc symbol lexical) | |
126 | (make-call loc lexical '()))) | |
f4e5e411 | 127 | (lambda () |
0faf3965 RT |
128 | (make-call loc |
129 | (make-module-ref loc runtime 'symbol-value #t) | |
130 | (list (make-const loc symbol)))))) | |
344927c3 | 131 | |
0faf3965 RT |
132 | (define (global? symbol) |
133 | (module-variable value-slot symbol)) | |
66be42cb BT |
134 | |
135 | (define (ensure-globals! loc names body) | |
0faf3965 | 136 | (if (and (every global? names) |
eaeda0d5 | 137 | (every symbol-interned? names)) |
66be42cb | 138 | body |
5ddd9645 | 139 | (list->seq |
66be42cb BT |
140 | loc |
141 | `(,@(map | |
142 | (lambda (name) | |
0faf3965 | 143 | (symbol-desc name) |
5ddd9645 | 144 | (make-call loc |
0faf3965 RT |
145 | (make-module-ref loc runtime 'symbol-desc #t) |
146 | (list (make-const loc name)))) | |
66be42cb BT |
147 | names) |
148 | ,body)))) | |
149 | ||
eaeda0d5 | 150 | (define (set-variable! loc symbol value) |
f4e5e411 BT |
151 | (access-variable |
152 | loc | |
eaeda0d5 BT |
153 | symbol |
154 | (lambda (lexical) | |
0faf3965 RT |
155 | (if (symbol? lexical) |
156 | (make-lexical-set loc symbol lexical value) | |
157 | (make-call loc lexical (list value)))) | |
c6920dc8 | 158 | (lambda () |
eaeda0d5 | 159 | (ensure-globals! |
c6920dc8 | 160 | loc |
eaeda0d5 | 161 | (list symbol) |
0faf3965 RT |
162 | (make-call loc |
163 | (make-module-ref loc runtime 'set-symbol-value! #t) | |
164 | (list (make-const loc symbol) | |
165 | value)))))) | |
344927c3 | 166 | |
eaeda0d5 BT |
167 | (define (access-function loc symbol handle-lexical handle-global) |
168 | (cond | |
169 | ((get-function-binding (fluid-ref bindings-data) symbol) | |
170 | => handle-lexical) | |
171 | (else | |
172 | (handle-global)))) | |
344927c3 | 173 | |
eaeda0d5 BT |
174 | (define (reference-function loc symbol) |
175 | (access-function | |
176 | loc | |
177 | symbol | |
178 | (lambda (gensym) (make-lexical-ref loc symbol gensym)) | |
0faf3965 RT |
179 | (lambda () |
180 | (make-module-ref loc '(elisp-functions) symbol #t)))) | |
eaeda0d5 BT |
181 | |
182 | (define (set-function! loc symbol value) | |
183 | (access-function | |
f4e5e411 | 184 | loc |
eaeda0d5 BT |
185 | symbol |
186 | (lambda (gensym) (make-lexical-set loc symbol gensym value)) | |
c6920dc8 | 187 | (lambda () |
7081d4f9 | 188 | (make-call |
c6920dc8 | 189 | loc |
eaeda0d5 BT |
190 | (make-module-ref loc runtime 'set-symbol-function! #t) |
191 | (list (make-const loc symbol) value))))) | |
344927c3 | 192 | |
0faf3965 RT |
193 | (define (bind-lexically? sym decls) |
194 | (let ((decl (assq-ref decls sym))) | |
195 | (or (eq? decl 'lexical) | |
196 | (and | |
197 | (lexical-binding?) | |
198 | (not (special? sym)))))) | |
a6a5cf03 | 199 | |
0e5b7e74 BT |
200 | (define (parse-let-binding loc binding) |
201 | (pmatch binding | |
202 | ((unquote var) | |
203 | (guard (symbol? var)) | |
204 | (cons var #nil)) | |
205 | ((,var) | |
206 | (guard (symbol? var)) | |
207 | (cons var #nil)) | |
208 | ((,var ,val) | |
209 | (guard (symbol? var)) | |
210 | (cons var val)) | |
211 | (else | |
212 | (report-error loc "malformed variable binding" binding)))) | |
213 | ||
214 | (define (parse-flet-binding loc binding) | |
215 | (pmatch binding | |
216 | ((,var ,args . ,body) | |
217 | (guard (symbol? var)) | |
218 | (cons var `(function (lambda ,args ,@body)))) | |
219 | (else | |
220 | (report-error loc "malformed function binding" binding)))) | |
221 | ||
805b8211 BT |
222 | (define (parse-declaration expr) |
223 | (pmatch expr | |
224 | ((lexical . ,vars) | |
225 | (map (cut cons <> 'lexical) vars)) | |
805b8211 BT |
226 | (else |
227 | '()))) | |
228 | ||
229 | (define (parse-body-1 body lambda?) | |
230 | (let loop ((lst body) | |
231 | (decls '()) | |
232 | (intspec #f) | |
233 | (doc #f)) | |
234 | (pmatch lst | |
235 | (((declare . ,x) . ,tail) | |
236 | (loop tail (append-reverse x decls) intspec doc)) | |
0faf3965 RT |
237 | (((interactive) . ,tail) |
238 | (guard lambda? (not intspec)) | |
239 | (loop tail decls (cons 'interactive-form #nil) doc)) | |
240 | (((interactive ,x) . ,tail) | |
805b8211 | 241 | (guard lambda? (not intspec)) |
0faf3965 | 242 | (loop tail decls (cons 'interactive-form x) doc)) |
805b8211 | 243 | ((,x . ,tail) |
0faf3965 | 244 | (guard lambda? (or (string? x) (lisp-string? x)) (not doc) (not (null? tail))) |
805b8211 BT |
245 | (loop tail decls intspec x)) |
246 | (else | |
247 | (values (append-map parse-declaration decls) | |
248 | intspec | |
249 | doc | |
250 | lst))))) | |
251 | ||
252 | (define (parse-lambda-body body) | |
253 | (parse-body-1 body #t)) | |
254 | ||
255 | (define (parse-body body) | |
256 | (receive (decls intspec doc body) (parse-body-1 body #f) | |
257 | (values decls body))) | |
258 | ||
16318179 BT |
259 | ;;; Partition the argument list of a lambda expression into required, |
260 | ;;; optional and rest arguments. | |
261 | ||
262 | (define (parse-lambda-list lst) | |
0faf3965 | 263 | (define (%match lst null optional rest symbol list*) |
16318179 BT |
264 | (pmatch lst |
265 | (() (null)) | |
266 | ((&optional . ,tail) (optional tail)) | |
267 | ((&rest . ,tail) (rest tail)) | |
268 | ((,arg . ,tail) (guard (symbol? arg)) (symbol arg tail)) | |
0faf3965 | 269 | ((,arg . ,tail) (guard (list? arg)) (list* arg tail)) |
16318179 BT |
270 | (else (fail)))) |
271 | (define (return rreq ropt rest) | |
272 | (values #t (reverse rreq) (reverse ropt) rest)) | |
273 | (define (fail) | |
274 | (values #f #f #f #f)) | |
275 | (define (parse-req lst rreq) | |
276 | (%match lst | |
277 | (lambda () (return rreq '() #f)) | |
278 | (lambda (tail) (parse-opt tail rreq '())) | |
279 | (lambda (tail) (parse-rest tail rreq '())) | |
0faf3965 RT |
280 | (lambda (arg tail) (parse-req tail (cons arg rreq))) |
281 | (lambda (arg tail) (fail)))) | |
16318179 BT |
282 | (define (parse-opt lst rreq ropt) |
283 | (%match lst | |
284 | (lambda () (return rreq ropt #f)) | |
285 | (lambda (tail) (fail)) | |
286 | (lambda (tail) (parse-rest tail rreq ropt)) | |
0faf3965 | 287 | (lambda (arg tail) (parse-opt tail rreq (cons (list arg) ropt))) |
16318179 BT |
288 | (lambda (arg tail) (parse-opt tail rreq (cons arg ropt))))) |
289 | (define (parse-rest lst rreq ropt) | |
290 | (%match lst | |
291 | (lambda () (fail)) | |
292 | (lambda (tail) (fail)) | |
293 | (lambda (tail) (fail)) | |
0faf3965 RT |
294 | (lambda (arg tail) (parse-post-rest tail rreq ropt arg)) |
295 | (lambda (arg tail) (fail)))) | |
16318179 BT |
296 | (define (parse-post-rest lst rreq ropt rest) |
297 | (%match lst | |
298 | (lambda () (return rreq ropt rest)) | |
299 | (lambda () (fail)) | |
300 | (lambda () (fail)) | |
0faf3965 | 301 | (lambda (arg tail) (fail)) |
16318179 BT |
302 | (lambda (arg tail) (fail)))) |
303 | (parse-req lst '())) | |
304 | ||
305 | (define (make-simple-lambda loc meta req opt init rest vars body) | |
306 | (make-lambda loc | |
307 | meta | |
308 | (make-lambda-case #f req opt rest #f init vars body #f))) | |
50abfe76 | 309 | |
c32b7c4c AW |
310 | (define (make-dynlet src fluids vals body) |
311 | (let ((f (map (lambda (x) (gensym "fluid ")) fluids)) | |
312 | (v (map (lambda (x) (gensym "valud ")) vals))) | |
313 | (make-let src (map (lambda (_) 'fluid) fluids) f fluids | |
314 | (make-let src (map (lambda (_) 'val) vals) v vals | |
315 | (let lp ((f f) (v v)) | |
316 | (if (null? f) | |
317 | body | |
0faf3965 RT |
318 | (make-call src |
319 | (make-module-ref src runtime 'bind-symbol #t) | |
320 | (list (make-lexical-ref #f 'fluid (car f)) | |
321 | (make-lexical-ref #f 'val (car v)) | |
322 | (make-lambda | |
323 | src '() | |
324 | (make-lambda-case | |
325 | src '() #f #f #f '() '() | |
326 | (lp (cdr f) (cdr v)) | |
327 | #f)))))))))) | |
c32b7c4c | 328 | |
d9806be1 | 329 | (define (compile-lambda loc meta args body) |
0faf3965 | 330 | (receive (valid? req-ids opts rest-id) |
16318179 BT |
331 | (parse-lambda-list args) |
332 | (if valid? | |
333 | (let* ((all-ids (append req-ids | |
0faf3965 | 334 | (and opts (map car opts)) |
16318179 BT |
335 | (or (and=> rest-id list) '()))) |
336 | (all-vars (map (lambda (ignore) (gensym)) all-ids))) | |
805b8211 BT |
337 | (let*-values (((decls intspec doc forms) |
338 | (parse-lambda-body body)) | |
339 | ((lexical dynamic) | |
340 | (partition | |
0faf3965 | 341 | (compose (cut bind-lexically? <> decls) |
805b8211 BT |
342 | car) |
343 | (map list all-ids all-vars))) | |
344 | ((lexical-ids lexical-vars) (unzip2 lexical)) | |
345 | ((dynamic-ids dynamic-vars) (unzip2 dynamic))) | |
346 | (with-dynamic-bindings | |
347 | (fluid-ref bindings-data) | |
348 | dynamic-ids | |
349 | (lambda () | |
350 | (with-lexical-bindings | |
351 | (fluid-ref bindings-data) | |
352 | lexical-ids | |
353 | lexical-vars | |
354 | (lambda () | |
66be42cb BT |
355 | (ensure-globals! |
356 | loc | |
357 | dynamic-ids | |
663c5875 BT |
358 | (let* ((tree-il |
359 | (compile-expr | |
360 | (if rest-id | |
361 | `(let ((,rest-id (if ,rest-id | |
362 | ,rest-id | |
363 | nil))) | |
364 | ,@forms) | |
365 | `(progn ,@forms)))) | |
66be42cb BT |
366 | (full-body |
367 | (if (null? dynamic) | |
368 | tree-il | |
369 | (make-dynlet | |
370 | loc | |
0faf3965 | 371 | (map (cut make-const loc <>) dynamic-ids) |
66be42cb BT |
372 | (map (cut make-lexical-ref loc <> <>) |
373 | dynamic-ids | |
374 | dynamic-vars) | |
375 | tree-il)))) | |
376 | (make-simple-lambda loc | |
0faf3965 RT |
377 | (append (if intspec |
378 | (list intspec) | |
379 | '()) | |
380 | (if doc | |
381 | (list (cons 'emacs-documentation doc)) | |
382 | '()) | |
383 | meta) | |
66be42cb | 384 | req-ids |
0faf3965 RT |
385 | (map car opts) |
386 | (map (lambda (x) | |
387 | (if (pair? (cdr x)) | |
388 | (compile-expr (car (cdr x))) | |
389 | (make-const loc #nil))) | |
390 | opts) | |
66be42cb BT |
391 | rest-id |
392 | all-vars | |
393 | full-body))))))))) | |
16318179 | 394 | (report-error "invalid function" `(lambda ,args ,@body))))) |
50abfe76 | 395 | |
44ae163d | 396 | ;;; Handle macro and special operator bindings. |
74c009da | 397 | |
35724ee1 | 398 | (define (find-operator name type) |
8295b7c4 | 399 | (and |
35724ee1 | 400 | (symbol? name) |
0faf3965 RT |
401 | (module-defined? function-slot name) |
402 | (let ((op (module-ref function-slot name))) | |
44ae163d BT |
403 | (if (and (pair? op) (eq? (car op) type)) |
404 | (cdr op) | |
405 | #f)))) | |
74c009da | 406 | |
9b5ff6a6 DK |
407 | (define (contains-unquotes? expr) |
408 | (if (pair? expr) | |
f4e5e411 BT |
409 | (if (or (unquote? (car expr)) (unquote-splicing? (car expr))) |
410 | #t | |
411 | (or (contains-unquotes? (car expr)) | |
412 | (contains-unquotes? (cdr expr)))) | |
413 | #f)) | |
9b5ff6a6 | 414 | |
c983a199 BT |
415 | ;;; Process a backquoted expression by building up the needed |
416 | ;;; cons/append calls. For splicing, it is assumed that the expression | |
417 | ;;; spliced in evaluates to a list. The emacs manual does not really | |
418 | ;;; state either it has to or what to do if it does not, but Scheme | |
419 | ;;; explicitly forbids it and this seems reasonable also for elisp. | |
9b5ff6a6 DK |
420 | |
421 | (define (unquote-cell? expr) | |
422 | (and (list? expr) (= (length expr) 2) (unquote? (car expr)))) | |
abcf4a9e | 423 | |
9b5ff6a6 DK |
424 | (define (unquote-splicing-cell? expr) |
425 | (and (list? expr) (= (length expr) 2) (unquote-splicing? (car expr)))) | |
426 | ||
a90d9c85 | 427 | (define (process-backquote loc expr) |
9b5ff6a6 | 428 | (if (contains-unquotes? expr) |
f4e5e411 BT |
429 | (if (pair? expr) |
430 | (if (or (unquote-cell? expr) (unquote-splicing-cell? expr)) | |
431 | (compile-expr (cadr expr)) | |
432 | (let* ((head (car expr)) | |
433 | (processed-tail (process-backquote loc (cdr expr))) | |
434 | (head-is-list-2 (and (list? head) | |
435 | (= (length head) 2))) | |
436 | (head-unquote (and head-is-list-2 | |
437 | (unquote? (car head)))) | |
438 | (head-unquote-splicing (and head-is-list-2 | |
439 | (unquote-splicing? | |
440 | (car head))))) | |
441 | (if head-unquote-splicing | |
442 | (call-primitive loc | |
443 | 'append | |
444 | (compile-expr (cadr head)) | |
445 | processed-tail) | |
446 | (call-primitive loc 'cons | |
447 | (if head-unquote | |
448 | (compile-expr (cadr head)) | |
449 | (process-backquote loc head)) | |
450 | processed-tail)))) | |
451 | (report-error loc | |
452 | "non-pair expression contains unquotes" | |
453 | expr)) | |
454 | (make-const loc expr))) | |
9b5ff6a6 | 455 | |
44ae163d | 456 | ;;; Special operators |
abcf4a9e | 457 | |
44ae163d | 458 | (defspecial progn (loc args) |
5ddd9645 BT |
459 | (list->seq loc |
460 | (if (null? args) | |
461 | (list (nil-value loc)) | |
462 | (map compile-expr args)))) | |
abcf4a9e | 463 | |
80687f2e BT |
464 | (defspecial eval-when-compile (loc args) |
465 | (make-const loc (compile `(progn ,@args) #:from 'elisp #:to 'value))) | |
abcf4a9e | 466 | |
44ae163d BT |
467 | (defspecial if (loc args) |
468 | (pmatch args | |
469 | ((,cond ,then . ,else) | |
30439aa8 BT |
470 | (make-conditional |
471 | loc | |
472 | (call-primitive loc 'not | |
473 | (call-primitive loc 'nil? (compile-expr cond))) | |
474 | (compile-expr then) | |
0faf3965 RT |
475 | (compile-expr `(progn ,@else)))) |
476 | (else (report-error loc "Bad if" args)))) | |
44ae163d BT |
477 | |
478 | (defspecial defconst (loc args) | |
479 | (pmatch args | |
480 | ((,sym ,value . ,doc) | |
7e926ccf | 481 | (proclaim-special! sym) |
0faf3965 RT |
482 | (make-seq |
483 | loc | |
484 | (make-call loc | |
485 | (make-module-ref loc runtime 'proclaim-special! #t) | |
486 | (list (make-const loc sym))) | |
487 | (make-seq loc | |
488 | (set-variable! loc sym (compile-expr value)) | |
489 | (make-const loc sym)))) | |
490 | (else (report-error loc "Bad defconst" args)))) | |
de9f26b5 | 491 | |
44ae163d BT |
492 | (defspecial defvar (loc args) |
493 | (pmatch args | |
0faf3965 | 494 | ((,sym) |
7e926ccf | 495 | (proclaim-special! sym) |
0faf3965 RT |
496 | (make-seq loc |
497 | (make-call loc | |
498 | (make-module-ref loc runtime 'proclaim-special! #t) | |
499 | (list (make-const loc sym))) | |
500 | (make-const loc sym))) | |
44ae163d | 501 | ((,sym ,value . ,doc) |
7e926ccf | 502 | (proclaim-special! sym) |
0faf3965 RT |
503 | (make-seq |
504 | loc | |
505 | (make-call loc | |
506 | (make-module-ref loc runtime 'proclaim-special! #t) | |
507 | (list (make-const loc sym))) | |
508 | (make-seq | |
509 | loc | |
510 | (make-conditional | |
511 | loc | |
512 | (make-call loc | |
048703ce | 513 | (make-module-ref loc runtime 'symbol-default-bound? #t) |
0faf3965 RT |
514 | (list (make-const loc sym))) |
515 | (make-void loc) | |
048703ce RT |
516 | (make-call loc |
517 | (make-module-ref loc runtime 'set-symbol-default-value! #t) | |
518 | (list (make-const loc sym) | |
519 | (compile-expr value)))) | |
0faf3965 RT |
520 | (make-const loc sym)))) |
521 | (else (report-error loc "Bad defvar" args)))) | |
44ae163d BT |
522 | |
523 | (defspecial setq (loc args) | |
f5742cf0 BT |
524 | (define (car* x) (if (null? x) '() (car x))) |
525 | (define (cdr* x) (if (null? x) '() (cdr x))) | |
526 | (define (cadr* x) (car* (cdr* x))) | |
527 | (define (cddr* x) (cdr* (cdr* x))) | |
6fc3eae4 | 528 | (list->seq |
44ae163d | 529 | loc |
f5742cf0 BT |
530 | (let loop ((args args) (last (nil-value loc))) |
531 | (if (null? args) | |
532 | (list last) | |
533 | (let ((sym (car args)) | |
534 | (val (compile-expr (cadr* args)))) | |
535 | (if (not (symbol? sym)) | |
0faf3965 | 536 | (report-error loc "expected symbol in setq" args) |
f5742cf0 | 537 | (cons |
eaeda0d5 | 538 | (set-variable! loc sym val) |
f5742cf0 | 539 | (loop (cddr* args) |
eaeda0d5 | 540 | (reference-variable loc sym))))))))) |
f5742cf0 | 541 | |
44ae163d BT |
542 | (defspecial let (loc args) |
543 | (pmatch args | |
c64c51eb BT |
544 | ((,varlist . ,body) |
545 | (let ((bindings (map (cut parse-let-binding loc <>) varlist))) | |
546 | (receive (decls forms) (parse-body body) | |
547 | (receive (lexical dynamic) | |
548 | (partition | |
0faf3965 | 549 | (compose (cut bind-lexically? <> decls) |
c64c51eb BT |
550 | car) |
551 | bindings) | |
c64c51eb BT |
552 | (let ((make-values (lambda (for) |
553 | (map (lambda (el) (compile-expr (cdr el))) | |
554 | for))) | |
555 | (make-body (lambda () (compile-expr `(progn ,@forms))))) | |
66be42cb BT |
556 | (ensure-globals! |
557 | loc | |
558 | (map car dynamic) | |
559 | (if (null? lexical) | |
560 | (make-dynlet loc | |
0faf3965 | 561 | (map (compose (cut make-const loc <>) car) |
66be42cb BT |
562 | dynamic) |
563 | (map (compose compile-expr cdr) | |
564 | dynamic) | |
565 | (make-body)) | |
566 | (let* ((lexical-syms (map (lambda (el) (gensym)) lexical)) | |
567 | (dynamic-syms (map (lambda (el) (gensym)) dynamic)) | |
568 | (all-syms (append lexical-syms dynamic-syms)) | |
569 | (vals (append (make-values lexical) | |
570 | (make-values dynamic)))) | |
571 | (make-let loc | |
572 | all-syms | |
573 | all-syms | |
574 | vals | |
575 | (with-lexical-bindings | |
576 | (fluid-ref bindings-data) | |
577 | (map car lexical) | |
578 | lexical-syms | |
579 | (lambda () | |
580 | (if (null? dynamic) | |
581 | (make-body) | |
582 | (make-dynlet loc | |
583 | (map | |
0faf3965 RT |
584 | (compose (cut make-const |
585 | loc | |
586 | <>) | |
587 | car) | |
66be42cb BT |
588 | dynamic) |
589 | (map | |
590 | (lambda (sym) | |
591 | (make-lexical-ref | |
592 | loc | |
593 | sym | |
594 | sym)) | |
595 | dynamic-syms) | |
0faf3965 RT |
596 | (make-body)))))))))))))) |
597 | (else (report-error loc "bad let args")))) | |
44ae163d BT |
598 | |
599 | (defspecial let* (loc args) | |
600 | (pmatch args | |
c64c51eb BT |
601 | ((,varlist . ,body) |
602 | (let ((bindings (map (cut parse-let-binding loc <>) varlist))) | |
603 | (receive (decls forms) (parse-body body) | |
c64c51eb BT |
604 | (let iterate ((tail bindings)) |
605 | (if (null? tail) | |
606 | (compile-expr `(progn ,@forms)) | |
607 | (let ((sym (caar tail)) | |
608 | (value (compile-expr (cdar tail)))) | |
0faf3965 | 609 | (if (bind-lexically? sym decls) |
c64c51eb BT |
610 | (let ((target (gensym))) |
611 | (make-let loc | |
612 | `(,target) | |
613 | `(,target) | |
614 | `(,value) | |
615 | (with-lexical-bindings | |
616 | (fluid-ref bindings-data) | |
617 | `(,sym) | |
618 | `(,target) | |
619 | (lambda () (iterate (cdr tail)))))) | |
66be42cb BT |
620 | (ensure-globals! |
621 | loc | |
622 | (list sym) | |
623 | (make-dynlet loc | |
0faf3965 | 624 | (list (make-const loc sym)) |
66be42cb | 625 | (list value) |
0faf3965 RT |
626 | (iterate (cdr tail))))))))))) |
627 | (else (report-error loc "Bad let*" args)))) | |
44ae163d | 628 | |
44ae163d | 629 | (defspecial flet (loc args) |
44ae163d BT |
630 | (pmatch args |
631 | ((,bindings . ,body) | |
6bb004c4 BT |
632 | (let ((names+vals (map (cut parse-flet-binding loc <>) bindings))) |
633 | (receive (decls forms) (parse-body body) | |
634 | (let ((names (map car names+vals)) | |
635 | (vals (map cdr names+vals)) | |
636 | (gensyms (map (lambda (x) (gensym)) names+vals))) | |
eaeda0d5 | 637 | (with-function-bindings |
6bb004c4 BT |
638 | (fluid-ref bindings-data) |
639 | names | |
640 | gensyms | |
641 | (lambda () | |
642 | (make-let loc | |
643 | names | |
644 | gensyms | |
645 | (map compile-expr vals) | |
0faf3965 RT |
646 | (compile-expr `(progn ,@forms))))))))) |
647 | (else (report-error loc "bad flet" args)))) | |
44ae163d | 648 | |
1c2f9636 | 649 | (defspecial labels (loc args) |
44ae163d BT |
650 | (pmatch args |
651 | ((,bindings . ,body) | |
1c2f9636 BT |
652 | (let ((names+vals (map (cut parse-flet-binding loc <>) bindings))) |
653 | (receive (decls forms) (parse-body body) | |
654 | (let ((names (map car names+vals)) | |
655 | (vals (map cdr names+vals)) | |
656 | (gensyms (map (lambda (x) (gensym)) names+vals))) | |
eaeda0d5 | 657 | (with-function-bindings |
1c2f9636 BT |
658 | (fluid-ref bindings-data) |
659 | names | |
660 | gensyms | |
661 | (lambda () | |
662 | (make-letrec #f | |
663 | loc | |
664 | names | |
665 | gensyms | |
666 | (map compile-expr vals) | |
0faf3965 RT |
667 | (compile-expr `(progn ,@forms))))))))) |
668 | (else (report-error loc "bad labels" args)))) | |
44ae163d BT |
669 | |
670 | ;;; guile-ref allows building TreeIL's module references from within | |
671 | ;;; elisp as a way to access data within the Guile universe. The module | |
672 | ;;; and symbol referenced are static values, just like (@ module symbol) | |
673 | ;;; does! | |
674 | ||
675 | (defspecial guile-ref (loc args) | |
676 | (pmatch args | |
677 | ((,module ,sym) (guard (and (list? module) (symbol? sym))) | |
0faf3965 RT |
678 | (make-module-ref loc module sym #t)) |
679 | (else (report-error loc "bad guile-ref" args)))) | |
44ae163d | 680 | |
4d0dda0a BT |
681 | (defspecial guile-private-ref (loc args) |
682 | (pmatch args | |
683 | ((,module ,sym) (guard (and (list? module) (symbol? sym))) | |
0faf3965 RT |
684 | (make-module-ref loc module sym #f)) |
685 | (else (report-error loc "bad guile-private-ref" args)))) | |
4d0dda0a | 686 | |
44ae163d BT |
687 | ;;; guile-primitive allows to create primitive references, which are |
688 | ;;; still a little faster. | |
689 | ||
690 | (defspecial guile-primitive (loc args) | |
691 | (pmatch args | |
692 | ((,sym) | |
0faf3965 RT |
693 | (make-primitive-ref loc sym)) |
694 | (else (report-error loc "bad guile-primitive" args)))) | |
44ae163d | 695 | |
0faf3965 | 696 | (defspecial %function (loc args) |
44ae163d BT |
697 | (pmatch args |
698 | (((lambda ,args . ,body)) | |
d9806be1 | 699 | (compile-lambda loc '() args body)) |
0faf3965 RT |
700 | (((closure ,env ,args . ,body)) |
701 | (let ((bindings (map (lambda (x) (list (car x) (cdr x))) | |
702 | (filter pair? env)))) | |
703 | (compile-expr | |
704 | (let ((form `(let ,bindings | |
705 | (declare ,@(map (lambda (x) (list 'lexical x)) | |
706 | bindings)) | |
707 | (function (lambda ,args | |
708 | (declare | |
709 | (lexical | |
710 | ,@(filter-map | |
711 | (lambda (x) | |
712 | (cond | |
713 | ((memq x '(&optional &rest)) | |
714 | #f) | |
715 | ((symbol? x) | |
716 | x) | |
717 | ((list? x) | |
718 | (car x)))) | |
719 | args))) | |
720 | ,@body))))) | |
721 | form)))) | |
67cb2c27 | 722 | ((,sym) (guard (symbol? sym)) |
0faf3965 RT |
723 | (reference-function loc sym)) |
724 | ((,x) | |
725 | (make-const loc x)) | |
726 | (else (report-error loc "bad function" args)))) | |
727 | ||
728 | (defspecial function (loc args) | |
729 | (pmatch args | |
730 | ((,sym) (guard (symbol? sym)) | |
731 | (make-const loc sym)) | |
732 | (else ((cdr compile-%function) loc args)))) | |
de9f26b5 | 733 | |
44ae163d BT |
734 | (defspecial defmacro (loc args) |
735 | (pmatch args | |
736 | ((,name ,args . ,body) | |
74c009da | 737 | (if (not (symbol? name)) |
f4e5e411 | 738 | (report-error loc "expected symbol as macro name" name) |
2ce5e740 | 739 | (let* ((tree-il |
6fc3eae4 | 740 | (make-seq |
2ce5e740 | 741 | loc |
5ddd9645 | 742 | (set-function! |
6fc3eae4 AW |
743 | loc |
744 | name | |
5ddd9645 | 745 | (make-call |
2ce5e740 | 746 | loc |
5ddd9645 BT |
747 | (make-module-ref loc '(guile) 'cons #t) |
748 | (list (make-const loc 'macro) | |
749 | (compile-lambda loc | |
750 | `((name . ,name)) | |
751 | args | |
752 | body)))) | |
6fc3eae4 | 753 | (make-const loc name)))) |
66be42cb | 754 | (compile tree-il #:from 'tree-il #:to 'value) |
0faf3965 RT |
755 | tree-il))) |
756 | (else (report-error loc "bad defmacro" args)))) | |
abcf4a9e | 757 | |
0dbfdeef | 758 | (defspecial #{`}# (loc args) |
44ae163d BT |
759 | (pmatch args |
760 | ((,val) | |
0faf3965 RT |
761 | (process-backquote loc val)) |
762 | (else (report-error loc "bad backquote" args)))) | |
1e018f6c | 763 | |
44ae163d BT |
764 | (defspecial quote (loc args) |
765 | (pmatch args | |
766 | ((,val) | |
0faf3965 RT |
767 | (make-const loc val)) |
768 | (else (report-error loc "bad quote" args)))) | |
abcf4a9e | 769 | |
d273b826 BT |
770 | (defspecial %funcall (loc args) |
771 | (pmatch args | |
772 | ((,function . ,arguments) | |
5ddd9645 BT |
773 | (make-call loc |
774 | (compile-expr function) | |
0faf3965 RT |
775 | (map compile-expr arguments))) |
776 | (else (report-error loc "bad %funcall" args)))) | |
d273b826 | 777 | |
03e00c5c BT |
778 | (defspecial %set-lexical-binding-mode (loc args) |
779 | (pmatch args | |
780 | ((,val) | |
0faf3965 RT |
781 | (set-lexical-binding-mode val) |
782 | (make-void loc)) | |
783 | (else (report-error loc "bad %set-lexical-binding-mode" args)))) | |
784 | ||
44ae163d | 785 | ;;; Compile a compound expression to Tree-IL. |
74c009da | 786 | |
44ae163d BT |
787 | (define (compile-pair loc expr) |
788 | (let ((operator (car expr)) | |
789 | (arguments (cdr expr))) | |
790 | (cond | |
fd4d6914 RT |
791 | ((find-operator operator 'special-operator) |
792 | => (lambda (special-operator-function) | |
793 | (special-operator-function loc arguments))) | |
44ae163d BT |
794 | ((find-operator operator 'macro) |
795 | => (lambda (macro-function) | |
796 | (compile-expr (apply macro-function arguments)))) | |
797 | (else | |
0faf3965 | 798 | (compile-expr `(%funcall (%function ,operator) ,@arguments)))))) |
abcf4a9e | 799 | |
44ae163d BT |
800 | ;;; Compile a symbol expression. This is a variable reference or maybe |
801 | ;;; some special value like nil. | |
cef997e8 | 802 | |
44ae163d BT |
803 | (define (compile-symbol loc sym) |
804 | (case sym | |
805 | ((nil) (nil-value loc)) | |
806 | ((t) (t-value loc)) | |
eaeda0d5 | 807 | (else (reference-variable loc sym)))) |
51248e6e | 808 | |
c983a199 | 809 | ;;; Compile a single expression to TreeIL. |
51248e6e | 810 | |
a90d9c85 | 811 | (define (compile-expr expr) |
51248e6e DK |
812 | (let ((loc (location expr))) |
813 | (cond | |
f4e5e411 BT |
814 | ((symbol? expr) |
815 | (compile-symbol loc expr)) | |
816 | ((pair? expr) | |
817 | (compile-pair loc expr)) | |
818 | (else (make-const loc expr))))) | |
51248e6e | 819 | |
51248e6e DK |
820 | (define (compile-tree-il expr env opts) |
821 | (values | |
e5a361d1 | 822 | (with-fluids ((bindings-data (make-bindings))) |
66be42cb | 823 | (compile-expr expr)) |
f4e5e411 BT |
824 | env |
825 | env)) |