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 math
4 math.order math.parser namespaces make parser sequences strings
5 words splitting cpu.architecture alien alien.accessors
6 alien.strings quotations layouts system compiler.units io
7 io.files io.encodings.binary io.streams.memory accessors
8 combinators effects continuations fry classes vocabs
9 vocabs.loader words.symbol ;
26 TUPLE: abstract-c-type
27 { class class initial: object }
28 { boxed-class class initial: object }
29 { boxer-quot callable }
30 { unboxer-quot callable }
36 TUPLE: c-type < abstract-c-type
39 { rep initial: int-rep }
42 : <c-type> ( -- c-type )
48 c-types [ H{ } assoc-like ] change
51 ERROR: no-c-type name ;
53 PREDICATE: c-type-word < word
56 UNION: c-type-name string c-type-word ;
59 GENERIC: c-type ( name -- c-type ) foldable
61 GENERIC: resolve-pointer-type ( name -- c-type )
63 << \ void \ void* "pointer-c-type" set-word-prop >>
65 : void? ( c-type -- ? )
66 { void "void" } member? ;
68 M: word resolve-pointer-type
69 dup "pointer-c-type" word-prop
70 [ ] [ drop void* ] ?if ;
72 M: string resolve-pointer-type
73 dup "*" append dup c-types get at
76 c-types get at dup c-type-name?
77 [ resolve-pointer-type ] [ drop void* ] if
80 : resolve-typedef ( name -- c-type )
81 dup void? [ no-c-type ] when
82 dup c-type-name? [ c-type ] when ;
86 : parse-array-type ( name -- dims c-type )
88 [ [ "]" ?tail drop string>number ] map ] dip ;
92 M: string c-type ( name -- c-type )
93 CHAR: ] over member? [
94 parse-array-type prefix
96 dup c-types get at [ ] [
97 "*" ?tail [ resolve-pointer-type ] [ no-c-type ] if
102 dup "c-type" word-prop resolve-typedef
103 [ ] [ no-c-type ] ?if ;
105 GENERIC: c-struct? ( c-type -- ? )
109 M: c-type-name c-struct?
110 dup void? [ drop f ] [ c-type c-struct? ] if ;
112 ! These words being foldable means that words need to be
113 ! recompiled if a C type is redefined. Even so, folding the
114 ! size facilitates some optimizations.
115 GENERIC: c-type-class ( name -- class )
117 M: abstract-c-type c-type-class class>> ;
119 M: c-type-name c-type-class c-type c-type-class ;
121 GENERIC: c-type-boxed-class ( name -- class )
123 M: abstract-c-type c-type-boxed-class boxed-class>> ;
125 M: c-type-name c-type-boxed-class c-type c-type-boxed-class ;
127 GENERIC: c-type-boxer ( name -- boxer )
129 M: c-type c-type-boxer boxer>> ;
131 M: c-type-name c-type-boxer c-type c-type-boxer ;
133 GENERIC: c-type-boxer-quot ( name -- quot )
135 M: abstract-c-type c-type-boxer-quot boxer-quot>> ;
137 M: c-type-name c-type-boxer-quot c-type c-type-boxer-quot ;
139 GENERIC: c-type-unboxer ( name -- boxer )
141 M: c-type c-type-unboxer unboxer>> ;
143 M: c-type-name c-type-unboxer c-type c-type-unboxer ;
145 GENERIC: c-type-unboxer-quot ( name -- quot )
147 M: abstract-c-type c-type-unboxer-quot unboxer-quot>> ;
149 M: c-type-name c-type-unboxer-quot c-type c-type-unboxer-quot ;
151 GENERIC: c-type-rep ( name -- rep )
153 M: c-type c-type-rep rep>> ;
155 M: c-type-name c-type-rep c-type c-type-rep ;
157 GENERIC: c-type-getter ( name -- quot )
159 M: c-type c-type-getter getter>> ;
161 M: c-type-name c-type-getter c-type c-type-getter ;
163 GENERIC: c-type-setter ( name -- quot )
165 M: c-type c-type-setter setter>> ;
167 M: c-type-name c-type-setter c-type c-type-setter ;
169 GENERIC: c-type-align ( name -- n )
171 M: abstract-c-type c-type-align align>> ;
173 M: c-type-name c-type-align c-type c-type-align ;
175 GENERIC: c-type-stack-align? ( name -- ? )
177 M: c-type c-type-stack-align? stack-align?>> ;
179 M: c-type-name c-type-stack-align? c-type c-type-stack-align? ;
181 : c-type-box ( n c-type -- )
182 [ c-type-rep ] [ c-type-boxer [ "No boxer" throw ] unless* ] bi
185 : c-type-unbox ( n c-type -- )
186 [ c-type-rep ] [ c-type-unboxer [ "No unboxer" throw ] unless* ] bi
189 GENERIC: box-parameter ( n c-type -- )
191 M: c-type box-parameter c-type-box ;
193 M: c-type-name box-parameter c-type box-parameter ;
195 GENERIC: box-return ( c-type -- )
197 M: c-type box-return f swap c-type-box ;
199 M: c-type-name box-return c-type box-return ;
201 GENERIC: unbox-parameter ( n c-type -- )
203 M: c-type unbox-parameter c-type-unbox ;
205 M: c-type-name unbox-parameter c-type unbox-parameter ;
207 GENERIC: unbox-return ( c-type -- )
209 M: c-type unbox-return f swap c-type-unbox ;
211 M: c-type-name unbox-return c-type unbox-return ;
213 : little-endian? ( -- ? ) 1 <int> *char 1 = ; foldable
215 GENERIC: heap-size ( name -- size ) foldable
217 M: c-type-name heap-size c-type heap-size ;
219 M: abstract-c-type heap-size size>> ;
221 GENERIC: stack-size ( name -- size ) foldable
223 M: c-type-name stack-size c-type stack-size ;
225 M: c-type stack-size size>> cell align ;
227 GENERIC: byte-length ( seq -- n ) flushable
229 M: byte-array byte-length length ; inline
231 M: f byte-length drop 0 ; inline
235 : c-getter ( name -- quot )
237 [ "Cannot read struct fields with this type" throw ]
240 : c-type-getter-boxer ( name -- quot )
241 [ c-getter ] [ c-type-boxer-quot ] bi append ;
243 : c-setter ( name -- quot )
245 [ "Cannot write struct fields with this type" throw ]
248 : array-accessor ( c-type quot -- def )
250 \ swap , [ heap-size , [ * >fixnum ] % ] [ % ] bi*
253 GENERIC: typedef ( old new -- )
255 PREDICATE: typedef-word < c-type-word
256 "c-type" word-prop c-type-name? ;
258 M: string typedef ( old new -- ) c-types get set-at ;
259 M: word typedef ( old new -- )
261 [ nip define-symbol ]
263 [ swap "c-type" set-word-prop ]
265 swap dup c-type-name? [
267 "pointer-c-type" set-word-prop
272 TUPLE: long-long-type < c-type ;
274 : <long-long-type> ( -- c-type )
277 M: long-long-type unbox-parameter ( n c-type -- )
278 c-type-unboxer %unbox-long-long ;
280 M: long-long-type unbox-return ( c-type -- )
281 f swap unbox-parameter ;
283 M: long-long-type box-parameter ( n c-type -- )
284 c-type-boxer %box-long-long ;
286 M: long-long-type box-return ( c-type -- )
287 f swap box-parameter ;
289 : define-deref ( name -- )
290 [ CHAR: * prefix "alien.c-types" create ] [ c-getter 0 prefix ] bi
291 (( c-ptr -- value )) define-inline ;
293 : define-out ( name -- )
294 [ "alien.c-types" constructor-word ]
295 [ dup c-setter '[ _ heap-size <byte-array> [ 0 @ ] keep ] ] bi
296 (( value -- c-ptr )) define-inline ;
298 : define-primitive-type ( c-type name -- )
300 [ name>> define-deref ]
301 [ name>> define-out ]
304 : if-void ( c-type true false -- )
305 pick void? [ drop nip call ] [ nip call ] if ; inline
307 CONSTANT: primitive-types
319 ptrdiff_t intptr_t uintptr_t size_t
326 [ alien-cell ] >>getter
327 [ [ >c-ptr ] 2dip set-alien-cell ] >>setter
328 bootstrap-cell >>size
329 bootstrap-cell >>align
330 [ >c-ptr ] >>unboxer-quot
332 "alien_offset" >>unboxer
333 \ void* define-primitive-type
337 integer >>boxed-class
338 [ alien-signed-8 ] >>getter
339 [ set-alien-signed-8 ] >>setter
342 "box_signed_8" >>boxer
343 "to_signed_8" >>unboxer
344 \ longlong define-primitive-type
348 integer >>boxed-class
349 [ alien-unsigned-8 ] >>getter
350 [ set-alien-unsigned-8 ] >>setter
353 "box_unsigned_8" >>boxer
354 "to_unsigned_8" >>unboxer
355 \ ulonglong define-primitive-type
359 integer >>boxed-class
360 [ alien-signed-cell ] >>getter
361 [ set-alien-signed-cell ] >>setter
362 bootstrap-cell >>size
363 bootstrap-cell >>align
364 "box_signed_cell" >>boxer
365 "to_fixnum" >>unboxer
366 \ long define-primitive-type
370 integer >>boxed-class
371 [ alien-unsigned-cell ] >>getter
372 [ set-alien-unsigned-cell ] >>setter
373 bootstrap-cell >>size
374 bootstrap-cell >>align
375 "box_unsigned_cell" >>boxer
377 \ ulong define-primitive-type
381 integer >>boxed-class
382 [ alien-signed-4 ] >>getter
383 [ set-alien-signed-4 ] >>setter
386 "box_signed_4" >>boxer
387 "to_fixnum" >>unboxer
388 \ int define-primitive-type
392 integer >>boxed-class
393 [ alien-unsigned-4 ] >>getter
394 [ set-alien-unsigned-4 ] >>setter
397 "box_unsigned_4" >>boxer
399 \ uint define-primitive-type
404 [ alien-signed-2 ] >>getter
405 [ set-alien-signed-2 ] >>setter
408 "box_signed_2" >>boxer
409 "to_fixnum" >>unboxer
410 \ short define-primitive-type
415 [ alien-unsigned-2 ] >>getter
416 [ set-alien-unsigned-2 ] >>setter
419 "box_unsigned_2" >>boxer
421 \ ushort define-primitive-type
426 [ alien-signed-1 ] >>getter
427 [ set-alien-signed-1 ] >>setter
430 "box_signed_1" >>boxer
431 "to_fixnum" >>unboxer
432 \ char define-primitive-type
437 [ alien-unsigned-1 ] >>getter
438 [ set-alien-unsigned-1 ] >>setter
441 "box_unsigned_1" >>boxer
443 \ uchar define-primitive-type
446 [ alien-unsigned-1 0 = not ] >>getter
447 [ [ 1 0 ? ] 2dip set-alien-unsigned-1 ] >>setter
450 "box_boolean" >>boxer
451 "to_boolean" >>unboxer
452 \ bool define-primitive-type
456 math:float >>boxed-class
457 [ alien-float ] >>getter
458 [ [ >float ] 2dip set-alien-float ] >>setter
464 [ >float ] >>unboxer-quot
465 \ float define-primitive-type
469 math:float >>boxed-class
470 [ alien-double ] >>getter
471 [ [ >float ] 2dip set-alien-double ] >>setter
475 "to_double" >>unboxer
477 [ >float ] >>unboxer-quot
478 \ double define-primitive-type
480 \ long c-type \ ptrdiff_t typedef
481 \ long c-type \ intptr_t typedef
482 \ ulong c-type \ uintptr_t typedef
483 \ ulong c-type \ size_t typedef
484 ] with-compilation-unit
486 M: char-16-rep rep-component-type drop char ;
487 M: uchar-16-rep rep-component-type drop uchar ;
488 M: short-8-rep rep-component-type drop short ;
489 M: ushort-8-rep rep-component-type drop ushort ;
490 M: int-4-rep rep-component-type drop int ;
491 M: uint-4-rep rep-component-type drop uint ;
492 M: longlong-2-rep rep-component-type drop longlong ;
493 M: ulonglong-2-rep rep-component-type drop ulonglong ;
494 M: float-4-rep rep-component-type drop float ;
495 M: double-2-rep rep-component-type drop double ;
497 : (unsigned-interval) ( bytes -- from to ) [ 0 ] dip 8 * 2^ 1 - ; foldable
498 : unsigned-interval ( c-type -- from to ) heap-size (unsigned-interval) ; foldable
499 : (signed-interval) ( bytes -- from to ) 8 * 1 - 2^ [ neg ] [ 1 - ] bi ; foldable
500 : signed-interval ( c-type -- from to ) heap-size (signed-interval) ; foldable
502 : c-type-interval ( c-type -- from to )
504 { [ dup { float double } memq? ] [ drop -1/0. 1/0. ] }
505 { [ dup { char short int long longlong } memq? ] [ signed-interval ] }
506 { [ dup { uchar ushort uint ulong ulonglong } memq? ] [ unsigned-interval ] }
509 : c-type-clamp ( value c-type -- value' ) c-type-interval clamp ; inline