1 ! Copyright (C) 2004, 2009 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: byte-arrays arrays assocs kernel kernel.private libc math
4 namespaces make parser sequences strings words splitting math.parser
5 cpu.architecture alien alien.accessors alien.strings quotations
6 layouts system compiler.units io io.files io.encodings.binary
7 io.streams.memory accessors combinators effects continuations fry
8 classes vocabs vocabs.loader ;
14 : little-endian? ( -- ? ) 1 <int> *char 1 = ; foldable
16 TUPLE: abstract-c-type
17 { class class initial: object }
18 { boxed-class class initial: object }
19 { boxer-quot callable }
20 { unboxer-quot callable }
29 direct-array-constructor
30 sequence-mixin-class ;
32 TUPLE: c-type < abstract-c-type
35 { rep initial: int-rep }
38 : <c-type> ( -- type )
44 c-types [ H{ } assoc-like ] change
47 ERROR: no-c-type name ;
49 : (c-type) ( name -- type/f )
50 c-types get-global at dup [
51 dup string? [ (c-type) ] when
55 GENERIC: c-type ( name -- type ) foldable
57 : resolve-pointer-type ( name -- name )
58 c-types get at dup string?
59 [ "*" append ] [ drop "void*" ] if
62 : resolve-typedef ( name -- type )
63 dup string? [ c-type ] when ;
65 : parse-array-type ( name -- array )
67 [ [ "]" ?tail drop string>number ] map ] dip prefix ;
69 M: string c-type ( name -- type )
70 CHAR: ] over member? [
76 "*" ?tail [ resolve-pointer-type ] [ no-c-type ] if
80 : ?require-word ( word/pair -- )
81 dup word? [ drop ] [ first require ] ?if ;
83 ! These words being foldable means that words need to be
84 ! recompiled if a C type is redefined. Even so, folding the
85 ! size facilitates some optimizations.
86 GENERIC: heap-size ( type -- size ) foldable
88 M: string heap-size c-type heap-size ;
90 M: abstract-c-type heap-size size>> ;
92 GENERIC: require-c-arrays ( c-type -- )
94 M: object require-c-arrays
97 M: c-type require-c-arrays
98 [ array-class>> ?require-word ]
99 [ sequence-mixin-class>> ?require-word ]
100 [ direct-array-class>> ?require-word ] tri ;
102 M: string require-c-arrays
103 c-type require-c-arrays ;
105 M: array require-c-arrays
106 first c-type require-c-arrays ;
108 ERROR: specialized-array-vocab-not-loaded vocab word ;
110 : c-array-constructor ( c-type -- word )
111 array-constructor>> dup array?
112 [ first2 specialized-array-vocab-not-loaded ] when ; foldable
114 : c-(array)-constructor ( c-type -- word )
115 (array)-constructor>> dup array?
116 [ first2 specialized-array-vocab-not-loaded ] when ; foldable
118 : c-direct-array-constructor ( c-type -- word )
119 direct-array-constructor>> dup array?
120 [ first2 specialized-array-vocab-not-loaded ] when ; foldable
122 GENERIC: <c-array> ( len c-type -- array )
124 c-array-constructor execute( len -- array ) ; inline
126 c-type <c-array> ; inline
128 first c-type <c-array> ; inline
130 GENERIC: (c-array) ( len c-type -- array )
132 c-(array)-constructor execute( len -- array ) ; inline
134 c-type (c-array) ; inline
136 first c-type (c-array) ; inline
138 GENERIC: <c-direct-array> ( alien len c-type -- array )
139 M: object <c-direct-array>
140 c-direct-array-constructor execute( alien len -- array ) ; inline
141 M: string <c-direct-array>
142 c-type <c-direct-array> ; inline
143 M: array <c-direct-array>
144 first c-type <c-direct-array> ; inline
146 : malloc-array ( n type -- alien )
147 [ heap-size calloc ] [ <c-direct-array> ] 2bi ; inline
149 : (malloc-array) ( n type -- alien )
150 [ heap-size * malloc ] [ <c-direct-array> ] 2bi ; inline
152 GENERIC: c-type-class ( name -- class )
154 M: abstract-c-type c-type-class class>> ;
156 M: string c-type-class c-type c-type-class ;
158 GENERIC: c-type-boxed-class ( name -- class )
160 M: abstract-c-type c-type-boxed-class boxed-class>> ;
162 M: string c-type-boxed-class c-type c-type-boxed-class ;
164 GENERIC: c-type-boxer ( name -- boxer )
166 M: c-type c-type-boxer boxer>> ;
168 M: string c-type-boxer c-type c-type-boxer ;
170 GENERIC: c-type-boxer-quot ( name -- quot )
172 M: abstract-c-type c-type-boxer-quot boxer-quot>> ;
174 M: string c-type-boxer-quot c-type c-type-boxer-quot ;
176 GENERIC: c-type-unboxer ( name -- boxer )
178 M: c-type c-type-unboxer unboxer>> ;
180 M: string c-type-unboxer c-type c-type-unboxer ;
182 GENERIC: c-type-unboxer-quot ( name -- quot )
184 M: abstract-c-type c-type-unboxer-quot unboxer-quot>> ;
186 M: string c-type-unboxer-quot c-type c-type-unboxer-quot ;
188 GENERIC: c-type-rep ( name -- rep )
190 M: c-type c-type-rep rep>> ;
192 M: string c-type-rep c-type c-type-rep ;
194 GENERIC: c-type-getter ( name -- quot )
196 M: c-type c-type-getter getter>> ;
198 M: string c-type-getter c-type c-type-getter ;
200 GENERIC: c-type-setter ( name -- quot )
202 M: c-type c-type-setter setter>> ;
204 M: string c-type-setter c-type c-type-setter ;
206 GENERIC: c-type-align ( name -- n )
208 M: abstract-c-type c-type-align align>> ;
210 M: string c-type-align c-type c-type-align ;
212 GENERIC: c-type-stack-align? ( name -- ? )
214 M: c-type c-type-stack-align? stack-align?>> ;
216 M: string c-type-stack-align? c-type c-type-stack-align? ;
218 : c-type-box ( n type -- )
219 [ c-type-rep ] [ c-type-boxer [ "No boxer" throw ] unless* ] bi
222 : c-type-unbox ( n ctype -- )
223 [ c-type-rep ] [ c-type-unboxer [ "No unboxer" throw ] unless* ] bi
226 GENERIC: box-parameter ( n ctype -- )
228 M: c-type box-parameter c-type-box ;
230 M: string box-parameter c-type box-parameter ;
232 GENERIC: box-return ( ctype -- )
234 M: c-type box-return f swap c-type-box ;
236 M: string box-return c-type box-return ;
238 GENERIC: unbox-parameter ( n ctype -- )
240 M: c-type unbox-parameter c-type-unbox ;
242 M: string unbox-parameter c-type unbox-parameter ;
244 GENERIC: unbox-return ( ctype -- )
246 M: c-type unbox-return f swap c-type-unbox ;
248 M: string unbox-return c-type unbox-return ;
250 GENERIC: stack-size ( type -- size ) foldable
252 M: string stack-size c-type stack-size ;
254 M: c-type stack-size size>> cell align ;
256 GENERIC: byte-length ( seq -- n ) flushable
258 M: byte-array byte-length length ; inline
260 M: f byte-length drop 0 ; inline
262 : c-getter ( name -- quot )
264 [ "Cannot read struct fields with this type" throw ]
267 : c-type-getter-boxer ( name -- quot )
268 [ c-getter ] [ c-type-boxer-quot ] bi append ;
270 : c-setter ( name -- quot )
272 [ "Cannot write struct fields with this type" throw ]
275 : <c-object> ( type -- array )
276 heap-size <byte-array> ; inline
278 : (c-object) ( type -- array )
279 heap-size (byte-array) ; inline
281 : malloc-object ( type -- alien )
282 1 swap heap-size calloc ; inline
284 : (malloc-object) ( type -- alien )
285 heap-size malloc ; inline
287 : malloc-byte-array ( byte-array -- alien )
288 dup byte-length [ nip malloc dup ] 2keep memcpy ;
290 : memory>byte-array ( alien len -- byte-array )
291 [ nip (byte-array) dup ] 2keep memcpy ;
293 : malloc-string ( string encoding -- alien )
294 string>alien malloc-byte-array ;
296 M: memory-stream stream-read
298 [ index>> ] [ alien>> ] bi <displaced-alien>
299 swap memory>byte-array
300 ] [ [ + ] change-index drop ] 2bi ;
302 : byte-array>memory ( byte-array base -- )
303 swap dup byte-length memcpy ; inline
305 : array-accessor ( type quot -- def )
307 \ swap , [ heap-size , [ * >fixnum ] % ] [ % ] bi*
310 : typedef ( old new -- ) c-types get set-at ;
312 TUPLE: long-long-type < c-type ;
314 : <long-long-type> ( -- type )
317 M: long-long-type unbox-parameter ( n type -- )
318 c-type-unboxer %unbox-long-long ;
320 M: long-long-type unbox-return ( type -- )
321 f swap unbox-parameter ;
323 M: long-long-type box-parameter ( n type -- )
324 c-type-boxer %box-long-long ;
326 M: long-long-type box-return ( type -- )
327 f swap box-parameter ;
329 : define-deref ( name -- )
330 [ CHAR: * prefix "alien.c-types" create ] [ c-getter 0 prefix ] bi
331 (( c-ptr -- value )) define-inline ;
333 : define-out ( name -- )
334 [ "alien.c-types" constructor-word ]
335 [ dup c-setter '[ _ <c-object> [ 0 @ ] keep ] ] bi
336 (( value -- c-ptr )) define-inline ;
338 : >c-bool ( ? -- int ) 1 0 ? ; inline
340 : c-bool> ( int -- ? ) 0 = not ; inline
342 : define-primitive-type ( type name -- )
348 : malloc-file-contents ( path -- alien len )
349 binary file-contents [ malloc-byte-array ] [ length ] bi ;
351 : if-void ( type true false -- )
352 pick "void" = [ drop nip call ] [ nip call ] if ; inline
354 : ?lookup ( vocab word -- word/pair )
355 over vocab [ swap lookup ] [ 2array ] if ;
357 : set-array-class* ( c-type vocab-stem type-stem -- c-type )
360 [ "specialized-arrays." prepend ]
361 [ "-array" append ] bi* ?lookup >>array-class
364 [ "specialized-arrays." prepend ]
365 [ "<" "-array>" surround ] bi* ?lookup >>array-constructor
368 [ "specialized-arrays." prepend ]
369 [ "(" "-array)" surround ] bi* ?lookup >>(array)-constructor
372 [ "specialized-arrays." prepend ]
373 [ "-sequence" append ] bi* ?lookup >>sequence-mixin-class
376 [ "specialized-arrays.direct." prepend ]
377 [ "direct-" "-array" surround ] bi* ?lookup >>direct-array-class
380 [ "specialized-arrays.direct." prepend ]
381 [ "<direct-" "-array>" surround ] bi* ?lookup >>direct-array-constructor
385 : set-array-class ( c-type stem -- c-type )
386 dup set-array-class* ;
388 CONSTANT: primitive-types
394 "longlong" "ulonglong"
403 [ alien-cell ] >>getter
404 [ [ >c-ptr ] 2dip set-alien-cell ] >>setter
405 bootstrap-cell >>size
406 bootstrap-cell >>align
407 [ >c-ptr ] >>unboxer-quot
409 "alien_offset" >>unboxer
410 "alien" "void*" set-array-class*
411 "void*" define-primitive-type
415 integer >>boxed-class
416 [ alien-signed-8 ] >>getter
417 [ set-alien-signed-8 ] >>setter
420 "box_signed_8" >>boxer
421 "to_signed_8" >>unboxer
422 "longlong" set-array-class
423 "longlong" define-primitive-type
427 integer >>boxed-class
428 [ alien-unsigned-8 ] >>getter
429 [ set-alien-unsigned-8 ] >>setter
432 "box_unsigned_8" >>boxer
433 "to_unsigned_8" >>unboxer
434 "ulonglong" set-array-class
435 "ulonglong" define-primitive-type
439 integer >>boxed-class
440 [ alien-signed-cell ] >>getter
441 [ set-alien-signed-cell ] >>setter
442 bootstrap-cell >>size
443 bootstrap-cell >>align
444 "box_signed_cell" >>boxer
445 "to_fixnum" >>unboxer
446 "long" set-array-class
447 "long" define-primitive-type
451 integer >>boxed-class
452 [ alien-unsigned-cell ] >>getter
453 [ set-alien-unsigned-cell ] >>setter
454 bootstrap-cell >>size
455 bootstrap-cell >>align
456 "box_unsigned_cell" >>boxer
458 "ulong" set-array-class
459 "ulong" define-primitive-type
463 integer >>boxed-class
464 [ alien-signed-4 ] >>getter
465 [ set-alien-signed-4 ] >>setter
468 "box_signed_4" >>boxer
469 "to_fixnum" >>unboxer
470 "int" set-array-class
471 "int" define-primitive-type
475 integer >>boxed-class
476 [ alien-unsigned-4 ] >>getter
477 [ set-alien-unsigned-4 ] >>setter
480 "box_unsigned_4" >>boxer
482 "uint" set-array-class
483 "uint" define-primitive-type
488 [ alien-signed-2 ] >>getter
489 [ set-alien-signed-2 ] >>setter
492 "box_signed_2" >>boxer
493 "to_fixnum" >>unboxer
494 "short" set-array-class
495 "short" define-primitive-type
500 [ alien-unsigned-2 ] >>getter
501 [ set-alien-unsigned-2 ] >>setter
504 "box_unsigned_2" >>boxer
506 "ushort" set-array-class
507 "ushort" define-primitive-type
512 [ alien-signed-1 ] >>getter
513 [ set-alien-signed-1 ] >>setter
516 "box_signed_1" >>boxer
517 "to_fixnum" >>unboxer
518 "char" set-array-class
519 "char" define-primitive-type
524 [ alien-unsigned-1 ] >>getter
525 [ set-alien-unsigned-1 ] >>setter
528 "box_unsigned_1" >>boxer
530 "uchar" set-array-class
531 "uchar" define-primitive-type
534 [ alien-unsigned-1 c-bool> ] >>getter
535 [ [ >c-bool ] 2dip set-alien-unsigned-1 ] >>setter
538 "box_boolean" >>boxer
539 "to_boolean" >>unboxer
540 "bool" set-array-class
541 "bool" define-primitive-type
546 [ alien-float ] >>getter
547 [ [ >float ] 2dip set-alien-float ] >>setter
552 single-float-rep >>rep
553 [ >float ] >>unboxer-quot
554 "float" set-array-class
555 "float" define-primitive-type
560 [ alien-double ] >>getter
561 [ [ >float ] 2dip set-alien-double ] >>setter
565 "to_double" >>unboxer
566 double-float-rep >>rep
567 [ >float ] >>unboxer-quot
568 "double" set-array-class
569 "double" define-primitive-type
571 "long" "ptrdiff_t" typedef
572 "long" "intptr_t" typedef
573 "ulong" "size_t" typedef
574 ] with-compilation-unit