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 ;
27 TUPLE: abstract-c-type
28 { class class initial: object }
29 { boxed-class class initial: object }
30 { boxer-quot callable }
31 { unboxer-quot callable }
36 { align-first integer } ;
38 TUPLE: c-type < abstract-c-type
41 { rep initial: int-rep }
44 : <c-type> ( -- c-type )
47 ERROR: no-c-type name ;
49 PREDICATE: c-type-word < word
52 UNION: c-type-name string c-type-word ;
55 GENERIC: c-type ( name -- c-type ) foldable
57 GENERIC: resolve-pointer-type ( name -- c-type )
59 << \ void \ void* "pointer-c-type" set-word-prop >>
61 M: word resolve-pointer-type
62 dup "pointer-c-type" word-prop
63 [ ] [ drop void* ] ?if ;
65 M: array resolve-pointer-type
66 first resolve-pointer-type ;
68 : resolve-typedef ( name -- c-type )
69 dup void? [ no-c-type ] when
70 dup c-type-name? [ c-type ] when ;
74 : parse-array-type ( name -- dims c-type )
76 [ [ "]" ?tail drop string>number ] map ] dip ;
81 dup "c-type" word-prop resolve-typedef
82 [ ] [ no-c-type ] ?if ;
84 GENERIC: c-struct? ( c-type -- ? )
86 M: object c-struct? drop f ;
88 M: c-type-name c-struct? dup void? [ drop f ] [ c-type c-struct? ] if ;
90 ! These words being foldable means that words need to be
91 ! recompiled if a C type is redefined. Even so, folding the
92 ! size facilitates some optimizations.
93 GENERIC: c-type-class ( name -- class )
95 M: abstract-c-type c-type-class class>> ;
97 M: c-type-name c-type-class c-type c-type-class ;
99 GENERIC: c-type-boxed-class ( name -- class )
101 M: abstract-c-type c-type-boxed-class boxed-class>> ;
103 M: c-type-name c-type-boxed-class c-type c-type-boxed-class ;
105 GENERIC: c-type-boxer ( name -- boxer )
107 M: c-type c-type-boxer boxer>> ;
109 M: c-type-name c-type-boxer c-type c-type-boxer ;
111 GENERIC: c-type-boxer-quot ( name -- quot )
113 M: abstract-c-type c-type-boxer-quot boxer-quot>> ;
115 M: c-type-name c-type-boxer-quot c-type c-type-boxer-quot ;
117 GENERIC: c-type-unboxer ( name -- boxer )
119 M: c-type c-type-unboxer unboxer>> ;
121 M: c-type-name c-type-unboxer c-type c-type-unboxer ;
123 GENERIC: c-type-unboxer-quot ( name -- quot )
125 M: abstract-c-type c-type-unboxer-quot unboxer-quot>> ;
127 M: c-type-name c-type-unboxer-quot c-type c-type-unboxer-quot ;
129 GENERIC: c-type-rep ( name -- rep )
131 M: c-type c-type-rep rep>> ;
133 M: c-type-name c-type-rep c-type c-type-rep ;
135 GENERIC: c-type-getter ( name -- quot )
137 M: c-type c-type-getter getter>> ;
139 M: c-type-name c-type-getter c-type c-type-getter ;
141 GENERIC: c-type-setter ( name -- quot )
143 M: c-type c-type-setter setter>> ;
145 M: c-type-name c-type-setter c-type c-type-setter ;
147 GENERIC: c-type-align ( name -- n )
149 M: abstract-c-type c-type-align align>> ;
151 M: c-type-name c-type-align c-type c-type-align ;
153 GENERIC: c-type-align-first ( name -- n )
155 M: c-type-name c-type-align-first c-type c-type-align-first ;
157 M: abstract-c-type c-type-align-first align-first>> ;
159 GENERIC: c-type-stack-align? ( name -- ? )
161 M: c-type c-type-stack-align? stack-align?>> ;
163 M: c-type-name c-type-stack-align? c-type c-type-stack-align? ;
165 : c-type-box ( n c-type -- )
166 [ c-type-rep ] [ c-type-boxer [ "No boxer" throw ] unless* ] bi
169 : c-type-unbox ( n c-type -- )
170 [ c-type-rep ] [ c-type-unboxer [ "No unboxer" throw ] unless* ] bi
173 GENERIC: box-parameter ( n c-type -- )
175 M: c-type box-parameter c-type-box ;
177 M: c-type-name box-parameter c-type box-parameter ;
179 GENERIC: box-return ( c-type -- )
181 M: c-type box-return f swap c-type-box ;
183 M: c-type-name box-return c-type box-return ;
185 GENERIC: unbox-parameter ( n c-type -- )
187 M: c-type unbox-parameter c-type-unbox ;
189 M: c-type-name unbox-parameter c-type unbox-parameter ;
191 GENERIC: unbox-return ( c-type -- )
193 M: c-type unbox-return f swap c-type-unbox ;
195 M: c-type-name unbox-return c-type unbox-return ;
197 : little-endian? ( -- ? ) 1 <int> *char 1 = ; foldable
199 GENERIC: heap-size ( name -- size )
201 M: c-type-name heap-size c-type heap-size ;
203 M: abstract-c-type heap-size size>> ;
205 GENERIC: stack-size ( name -- size )
207 M: c-type-name stack-size c-type stack-size ;
209 M: c-type stack-size size>> cell align ;
211 GENERIC: byte-length ( seq -- n ) flushable
213 M: byte-array byte-length length ; inline
215 M: f byte-length drop 0 ; inline
217 : >c-bool ( ? -- int ) 1 0 ? ; inline
219 : c-bool> ( int -- ? ) 0 = not ; inline
223 : c-getter ( name -- quot )
225 [ "Cannot read struct fields with this type" throw ]
228 : c-type-getter-boxer ( name -- quot )
229 [ c-getter ] [ c-type-boxer-quot ] bi append ;
231 : c-setter ( name -- quot )
233 [ "Cannot write struct fields with this type" throw ]
236 : array-accessor ( c-type quot -- def )
238 \ swap , [ heap-size , [ * >fixnum ] % ] [ % ] bi*
241 GENERIC: typedef ( old new -- )
243 PREDICATE: typedef-word < c-type-word
244 "c-type" word-prop c-type-name? ;
246 M: word typedef ( old new -- )
248 [ nip define-symbol ]
249 [ swap "c-type" set-word-prop ]
251 swap dup c-type-name? [
253 "pointer-c-type" set-word-prop
258 TUPLE: long-long-type < c-type ;
260 : <long-long-type> ( -- c-type )
263 M: long-long-type unbox-parameter ( n c-type -- )
264 c-type-unboxer %unbox-long-long ;
266 M: long-long-type unbox-return ( c-type -- )
267 f swap unbox-parameter ;
269 M: long-long-type box-parameter ( n c-type -- )
270 c-type-boxer %box-long-long ;
272 M: long-long-type box-return ( c-type -- )
273 f swap box-parameter ;
275 : define-deref ( c-type -- )
276 [ name>> CHAR: * prefix "alien.c-types" create ] [ c-getter 0 prefix ] bi
277 (( c-ptr -- value )) define-inline ;
279 : define-out ( c-type -- )
280 [ name>> "alien.c-types" constructor-word ]
281 [ dup c-setter '[ _ heap-size (byte-array) [ 0 @ ] keep ] ] bi
282 (( value -- c-ptr )) define-inline ;
284 : define-primitive-type ( c-type name -- )
285 [ typedef ] [ define-deref ] [ define-out ] tri ;
287 : if-void ( c-type true false -- )
288 pick void? [ drop nip call ] [ nip call ] if ; inline
290 CONSTANT: primitive-types
302 ptrdiff_t intptr_t uintptr_t size_t
305 : 8-byte-alignment ( c-type -- c-type )
307 { [ cpu ppc? os macosx? and ] [ 4 >>align 8 >>align-first ] }
308 { [ cpu x86.32? os windows? not and ] [ 4 >>align 4 >>align-first ] }
309 [ 8 >>align 8 >>align-first ]
316 [ alien-cell ] >>getter
317 [ [ >c-ptr ] 2dip set-alien-cell ] >>setter
318 bootstrap-cell >>size
319 bootstrap-cell >>align
320 bootstrap-cell >>align-first
321 [ >c-ptr ] >>unboxer-quot
322 "allot_alien" >>boxer
323 "alien_offset" >>unboxer
324 \ void* define-primitive-type
328 integer >>boxed-class
329 [ alien-signed-4 ] >>getter
330 [ set-alien-signed-4 ] >>setter
334 "from_signed_4" >>boxer
335 "to_fixnum" >>unboxer
336 \ int define-primitive-type
340 integer >>boxed-class
341 [ alien-unsigned-4 ] >>getter
342 [ set-alien-unsigned-4 ] >>setter
346 "from_unsigned_4" >>boxer
348 \ uint define-primitive-type
353 [ alien-signed-2 ] >>getter
354 [ set-alien-signed-2 ] >>setter
358 "from_signed_2" >>boxer
359 "to_fixnum" >>unboxer
360 \ short define-primitive-type
365 [ alien-unsigned-2 ] >>getter
366 [ set-alien-unsigned-2 ] >>setter
370 "from_unsigned_2" >>boxer
372 \ ushort define-primitive-type
377 [ alien-signed-1 ] >>getter
378 [ set-alien-signed-1 ] >>setter
382 "from_signed_1" >>boxer
383 "to_fixnum" >>unboxer
384 \ char define-primitive-type
389 [ alien-unsigned-1 ] >>getter
390 [ set-alien-unsigned-1 ] >>setter
394 "from_unsigned_1" >>boxer
396 \ uchar define-primitive-type
400 [ alien-unsigned-4 c-bool> ] >>getter
401 [ [ >c-bool ] 2dip set-alien-unsigned-4 ] >>setter
405 "from_boolean" >>boxer
406 "to_boolean" >>unboxer
409 [ alien-unsigned-1 c-bool> ] >>getter
410 [ [ >c-bool ] 2dip set-alien-unsigned-1 ] >>setter
414 "from_boolean" >>boxer
415 "to_boolean" >>unboxer
417 \ bool define-primitive-type
421 math:float >>boxed-class
422 [ alien-float ] >>getter
423 [ [ >float ] 2dip set-alien-float ] >>setter
430 [ >float ] >>unboxer-quot
431 \ float define-primitive-type
435 math:float >>boxed-class
436 [ alien-double ] >>getter
437 [ [ >float ] 2dip set-alien-double ] >>setter
440 "from_double" >>boxer
441 "to_double" >>unboxer
443 [ >float ] >>unboxer-quot
444 \ double define-primitive-type
449 integer >>boxed-class
450 [ alien-signed-cell ] >>getter
451 [ set-alien-signed-cell ] >>setter
452 bootstrap-cell >>size
453 bootstrap-cell >>align
454 bootstrap-cell >>align-first
455 "from_signed_cell" >>boxer
456 "to_fixnum" >>unboxer
457 \ longlong define-primitive-type
461 integer >>boxed-class
462 [ alien-unsigned-cell ] >>getter
463 [ set-alien-unsigned-cell ] >>setter
464 bootstrap-cell >>size
465 bootstrap-cell >>align
466 bootstrap-cell >>align-first
467 "from_unsigned_cell" >>boxer
469 \ ulonglong define-primitive-type
472 \ int c-type \ long define-primitive-type
473 \ uint c-type \ ulong define-primitive-type
475 \ longlong c-type \ long define-primitive-type
476 \ ulonglong c-type \ ulong define-primitive-type
479 \ longlong c-type \ ptrdiff_t typedef
480 \ longlong c-type \ intptr_t typedef
482 \ ulonglong c-type \ uintptr_t typedef
483 \ ulonglong c-type \ size_t typedef
487 integer >>boxed-class
488 [ alien-signed-8 ] >>getter
489 [ set-alien-signed-8 ] >>setter
492 "from_signed_8" >>boxer
493 "to_signed_8" >>unboxer
494 \ longlong define-primitive-type
498 integer >>boxed-class
499 [ alien-unsigned-8 ] >>getter
500 [ set-alien-unsigned-8 ] >>setter
503 "from_unsigned_8" >>boxer
504 "to_unsigned_8" >>unboxer
505 \ ulonglong define-primitive-type
507 \ int c-type \ long define-primitive-type
508 \ uint c-type \ ulong define-primitive-type
510 \ int c-type \ ptrdiff_t typedef
511 \ int c-type \ intptr_t typedef
513 \ uint c-type \ uintptr_t typedef
514 \ uint c-type \ size_t typedef
516 ] with-compilation-unit
518 M: char-16-rep rep-component-type drop char ;
519 M: uchar-16-rep rep-component-type drop uchar ;
520 M: short-8-rep rep-component-type drop short ;
521 M: ushort-8-rep rep-component-type drop ushort ;
522 M: int-4-rep rep-component-type drop int ;
523 M: uint-4-rep rep-component-type drop uint ;
524 M: longlong-2-rep rep-component-type drop longlong ;
525 M: ulonglong-2-rep rep-component-type drop ulonglong ;
526 M: float-4-rep rep-component-type drop float ;
527 M: double-2-rep rep-component-type drop double ;
529 : (unsigned-interval) ( bytes -- from to ) [ 0 ] dip 8 * 2^ 1 - ; foldable
530 : unsigned-interval ( c-type -- from to ) heap-size (unsigned-interval) ; foldable
531 : (signed-interval) ( bytes -- from to ) 8 * 1 - 2^ [ neg ] [ 1 - ] bi ; foldable
532 : signed-interval ( c-type -- from to ) heap-size (signed-interval) ; foldable
534 : c-type-interval ( c-type -- from to )
536 { [ dup { float double } member-eq? ] [ drop -1/0. 1/0. ] }
537 { [ dup { char short int long longlong } member-eq? ] [ signed-interval ] }
538 { [ dup { uchar ushort uint ulong ulonglong } member-eq? ] [ unsigned-interval ] }
541 : c-type-clamp ( value c-type -- value' )
542 dup { float double } member-eq?
543 [ drop ] [ c-type-interval clamp ] if ; inline