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 }
35 { align-first integer } ;
37 TUPLE: c-type < abstract-c-type
40 { rep initial: int-rep }
43 : <c-type> ( -- c-type )
46 ERROR: no-c-type name ;
49 GENERIC: c-type ( name -- c-type ) foldable
51 : void? ( c-type -- ? )
54 PREDICATE: c-type-word < word
57 TUPLE: pointer { to initial: void read-only } ;
63 : resolve-typedef ( name -- c-type )
64 dup void? [ no-c-type ] when
65 dup c-type-name? [ c-type ] when ;
69 : parse-array-type ( name -- dims c-type )
71 [ [ "]" ?tail drop string>number ] map ] dip ;
76 dup "c-type" word-prop resolve-typedef
77 [ ] [ no-c-type ] ?if ;
79 GENERIC: c-struct? ( c-type -- ? )
81 M: object c-struct? drop f ;
83 M: c-type-name c-struct? dup void? [ drop f ] [ c-type c-struct? ] if ;
85 ! These words being foldable means that words need to be
86 ! recompiled if a C type is redefined. Even so, folding the
87 ! size facilitates some optimizations.
88 GENERIC: c-type-class ( name -- class )
90 M: abstract-c-type c-type-class class>> ;
92 M: c-type-name c-type-class c-type c-type-class ;
94 GENERIC: c-type-boxed-class ( name -- class )
96 M: abstract-c-type c-type-boxed-class boxed-class>> ;
98 M: c-type-name c-type-boxed-class c-type c-type-boxed-class ;
100 GENERIC: c-type-boxer ( name -- boxer )
102 M: c-type c-type-boxer boxer>> ;
104 M: c-type-name c-type-boxer c-type c-type-boxer ;
106 GENERIC: c-type-boxer-quot ( name -- quot )
108 M: abstract-c-type c-type-boxer-quot boxer-quot>> ;
110 M: c-type-name c-type-boxer-quot c-type c-type-boxer-quot ;
112 GENERIC: c-type-unboxer ( name -- boxer )
114 M: c-type c-type-unboxer unboxer>> ;
116 M: c-type-name c-type-unboxer c-type c-type-unboxer ;
118 GENERIC: c-type-unboxer-quot ( name -- quot )
120 M: abstract-c-type c-type-unboxer-quot unboxer-quot>> ;
122 M: c-type-name c-type-unboxer-quot c-type c-type-unboxer-quot ;
124 GENERIC: c-type-rep ( name -- rep )
126 M: c-type c-type-rep rep>> ;
128 M: c-type-name c-type-rep c-type c-type-rep ;
130 GENERIC: c-type-getter ( name -- quot )
132 M: c-type c-type-getter getter>> ;
134 M: c-type-name c-type-getter c-type c-type-getter ;
136 GENERIC: c-type-setter ( name -- quot )
138 M: c-type c-type-setter setter>> ;
140 M: c-type-name c-type-setter c-type c-type-setter ;
142 GENERIC: c-type-align ( name -- n )
144 M: abstract-c-type c-type-align align>> ;
146 M: c-type-name c-type-align c-type c-type-align ;
148 GENERIC: c-type-align-first ( name -- n )
150 M: c-type-name c-type-align-first c-type c-type-align-first ;
152 M: abstract-c-type c-type-align-first align-first>> ;
154 GENERIC: c-type-stack-align? ( name -- ? )
156 M: c-type c-type-stack-align? stack-align?>> ;
158 M: c-type-name c-type-stack-align? c-type c-type-stack-align? ;
160 : c-type-box ( n c-type -- )
161 [ c-type-rep ] [ c-type-boxer [ "No boxer" throw ] unless* ] bi
164 : c-type-unbox ( n c-type -- )
165 [ c-type-rep ] [ c-type-unboxer [ "No unboxer" throw ] unless* ] bi
168 GENERIC: box-parameter ( n c-type -- )
170 M: c-type box-parameter c-type-box ;
172 M: c-type-name box-parameter c-type box-parameter ;
174 GENERIC: box-return ( c-type -- )
176 M: c-type box-return f swap c-type-box ;
178 M: c-type-name box-return c-type box-return ;
180 GENERIC: unbox-parameter ( n c-type -- )
182 M: c-type unbox-parameter c-type-unbox ;
184 M: c-type-name unbox-parameter c-type unbox-parameter ;
186 GENERIC: unbox-return ( c-type -- )
188 M: c-type unbox-return f swap c-type-unbox ;
190 M: c-type-name unbox-return c-type unbox-return ;
192 : little-endian? ( -- ? ) 1 <int> *char 1 = ; foldable
194 GENERIC: heap-size ( name -- size )
196 M: c-type-name heap-size c-type heap-size ;
198 M: abstract-c-type heap-size size>> ;
200 GENERIC: stack-size ( name -- size )
202 M: c-type-name stack-size c-type stack-size ;
204 M: c-type stack-size size>> cell align ;
206 GENERIC: byte-length ( seq -- n ) flushable
208 M: byte-array byte-length length ; inline
210 M: f byte-length drop 0 ; inline
212 : >c-bool ( ? -- int ) 1 0 ? ; inline
214 : c-bool> ( int -- ? ) 0 = not ; inline
218 : c-getter ( name -- quot )
220 [ "Cannot read struct fields with this type" throw ]
223 : c-type-getter-boxer ( name -- quot )
224 [ c-getter ] [ c-type-boxer-quot ] bi append ;
226 : c-setter ( name -- quot )
228 [ "Cannot write struct fields with this type" throw ]
231 : array-accessor ( c-type quot -- def )
233 \ swap , [ heap-size , [ * >fixnum ] % ] [ % ] bi*
236 GENERIC: typedef ( old new -- )
238 PREDICATE: typedef-word < c-type-word
239 "c-type" word-prop c-type-name? ;
241 M: word typedef ( old new -- )
243 [ nip define-symbol ]
244 [ swap "c-type" set-word-prop ]
247 M: pointer typedef ( old new -- )
248 to>> dup c-type-word?
249 [ swap "pointer-c-type" set-word-prop ]
252 TUPLE: long-long-type < c-type ;
254 : <long-long-type> ( -- c-type )
257 M: long-long-type unbox-parameter ( n c-type -- )
258 c-type-unboxer %unbox-long-long ;
260 M: long-long-type unbox-return ( c-type -- )
261 f swap unbox-parameter ;
263 M: long-long-type box-parameter ( n c-type -- )
264 c-type-boxer %box-long-long ;
266 M: long-long-type box-return ( c-type -- )
267 f swap box-parameter ;
269 : define-deref ( c-type -- )
270 [ name>> CHAR: * prefix "alien.c-types" create ] [ c-getter 0 prefix ] bi
271 (( c-ptr -- value )) define-inline ;
273 : define-out ( c-type -- )
274 [ name>> "alien.c-types" constructor-word ]
275 [ dup c-setter '[ _ heap-size (byte-array) [ 0 @ ] keep ] ] bi
276 (( value -- c-ptr )) define-inline ;
278 : define-primitive-type ( c-type name -- )
279 [ typedef ] [ define-deref ] [ define-out ] tri ;
281 : if-void ( c-type true false -- )
282 pick void? [ drop nip call ] [ nip call ] if ; inline
285 ptrdiff_t intptr_t uintptr_t size_t
288 CONSTANT: primitive-types
300 : (pointer-c-type) ( void* type -- void*' )
301 [ clone ] dip c-type-boxer-quot >>boxer-quot ;
305 : resolve-pointer-typedef ( type -- base-type )
306 dup "c-type" word-prop dup word?
307 [ nip resolve-pointer-typedef ] [
308 pointer? [ drop void* ] when
311 : special-pointer-type ( type -- special-type )
313 dup "pointer-c-type" word-prop
314 [ ] [ resolve-pointer-typedef "pointer-c-type" word-prop ] ?if
317 : primitive-pointer-type? ( type -- ? )
319 resolve-pointer-typedef [ void? ] [ primitive-types member? ] bi or
325 [ \ void* c-type ] dip
326 to>> dup special-pointer-type
328 dup primitive-pointer-type? [ drop ] [ (pointer-c-type) ] if
331 : 8-byte-alignment ( c-type -- c-type )
333 { [ cpu ppc? os macosx? and ] [ 4 >>align 8 >>align-first ] }
334 { [ cpu x86.32? os windows? not and ] [ 4 >>align 4 >>align-first ] }
335 [ 8 >>align 8 >>align-first ]
342 [ alien-cell ] >>getter
343 [ [ >c-ptr ] 2dip set-alien-cell ] >>setter
344 bootstrap-cell >>size
345 bootstrap-cell >>align
346 bootstrap-cell >>align-first
347 [ >c-ptr ] >>unboxer-quot
348 "allot_alien" >>boxer
349 "alien_offset" >>unboxer
350 \ void* define-primitive-type
354 integer >>boxed-class
355 [ alien-signed-4 ] >>getter
356 [ set-alien-signed-4 ] >>setter
360 "from_signed_4" >>boxer
361 "to_fixnum" >>unboxer
362 \ int define-primitive-type
366 integer >>boxed-class
367 [ alien-unsigned-4 ] >>getter
368 [ set-alien-unsigned-4 ] >>setter
372 "from_unsigned_4" >>boxer
374 \ uint define-primitive-type
379 [ alien-signed-2 ] >>getter
380 [ set-alien-signed-2 ] >>setter
384 "from_signed_2" >>boxer
385 "to_fixnum" >>unboxer
386 \ short define-primitive-type
391 [ alien-unsigned-2 ] >>getter
392 [ set-alien-unsigned-2 ] >>setter
396 "from_unsigned_2" >>boxer
398 \ ushort define-primitive-type
403 [ alien-signed-1 ] >>getter
404 [ set-alien-signed-1 ] >>setter
408 "from_signed_1" >>boxer
409 "to_fixnum" >>unboxer
410 \ char define-primitive-type
415 [ alien-unsigned-1 ] >>getter
416 [ set-alien-unsigned-1 ] >>setter
420 "from_unsigned_1" >>boxer
422 \ uchar define-primitive-type
426 [ alien-unsigned-4 c-bool> ] >>getter
427 [ [ >c-bool ] 2dip set-alien-unsigned-4 ] >>setter
431 "from_boolean" >>boxer
432 "to_boolean" >>unboxer
435 [ alien-unsigned-1 c-bool> ] >>getter
436 [ [ >c-bool ] 2dip set-alien-unsigned-1 ] >>setter
440 "from_boolean" >>boxer
441 "to_boolean" >>unboxer
443 \ bool define-primitive-type
447 math:float >>boxed-class
448 [ alien-float ] >>getter
449 [ [ >float ] 2dip set-alien-float ] >>setter
456 [ >float ] >>unboxer-quot
457 \ float define-primitive-type
461 math:float >>boxed-class
462 [ alien-double ] >>getter
463 [ [ >float ] 2dip set-alien-double ] >>setter
466 "from_double" >>boxer
467 "to_double" >>unboxer
469 [ >float ] >>unboxer-quot
470 \ double define-primitive-type
475 integer >>boxed-class
476 [ alien-signed-cell ] >>getter
477 [ set-alien-signed-cell ] >>setter
478 bootstrap-cell >>size
479 bootstrap-cell >>align
480 bootstrap-cell >>align-first
481 "from_signed_cell" >>boxer
482 "to_fixnum" >>unboxer
483 \ longlong define-primitive-type
487 integer >>boxed-class
488 [ alien-unsigned-cell ] >>getter
489 [ set-alien-unsigned-cell ] >>setter
490 bootstrap-cell >>size
491 bootstrap-cell >>align
492 bootstrap-cell >>align-first
493 "from_unsigned_cell" >>boxer
495 \ ulonglong define-primitive-type
498 \ int c-type \ long define-primitive-type
499 \ uint c-type \ ulong define-primitive-type
501 \ longlong c-type \ long define-primitive-type
502 \ ulonglong c-type \ ulong define-primitive-type
505 \ longlong c-type \ ptrdiff_t typedef
506 \ longlong c-type \ intptr_t typedef
508 \ ulonglong c-type \ uintptr_t typedef
509 \ ulonglong c-type \ size_t typedef
513 integer >>boxed-class
514 [ alien-signed-8 ] >>getter
515 [ set-alien-signed-8 ] >>setter
518 "from_signed_8" >>boxer
519 "to_signed_8" >>unboxer
520 \ longlong define-primitive-type
524 integer >>boxed-class
525 [ alien-unsigned-8 ] >>getter
526 [ set-alien-unsigned-8 ] >>setter
529 "from_unsigned_8" >>boxer
530 "to_unsigned_8" >>unboxer
531 \ ulonglong define-primitive-type
533 \ int c-type \ long define-primitive-type
534 \ uint c-type \ ulong define-primitive-type
536 \ int c-type \ ptrdiff_t typedef
537 \ int c-type \ intptr_t typedef
539 \ uint c-type \ uintptr_t typedef
540 \ uint c-type \ size_t typedef
543 \ char \ byte typedef
544 \ uchar \ ubyte typedef
545 ] with-compilation-unit
547 M: char-16-rep rep-component-type drop char ;
548 M: uchar-16-rep rep-component-type drop uchar ;
549 M: short-8-rep rep-component-type drop short ;
550 M: ushort-8-rep rep-component-type drop ushort ;
551 M: int-4-rep rep-component-type drop int ;
552 M: uint-4-rep rep-component-type drop uint ;
553 M: longlong-2-rep rep-component-type drop longlong ;
554 M: ulonglong-2-rep rep-component-type drop ulonglong ;
555 M: float-4-rep rep-component-type drop float ;
556 M: double-2-rep rep-component-type drop double ;
558 : (unsigned-interval) ( bytes -- from to ) [ 0 ] dip 8 * 2^ 1 - ; foldable
559 : unsigned-interval ( c-type -- from to ) heap-size (unsigned-interval) ; foldable
560 : (signed-interval) ( bytes -- from to ) 8 * 1 - 2^ [ neg ] [ 1 - ] bi ; foldable
561 : signed-interval ( c-type -- from to ) heap-size (signed-interval) ; foldable
563 : c-type-interval ( c-type -- from to )
565 { [ dup { float double } member-eq? ] [ drop -1/0. 1/0. ] }
566 { [ dup { char short int long longlong } member-eq? ] [ signed-interval ] }
567 { [ dup { uchar ushort uint ulong ulonglong } member-eq? ] [ unsigned-interval ] }
570 : c-type-clamp ( value c-type -- value' )
571 dup { float double } member-eq?
572 [ drop ] [ c-type-interval clamp ] if ; inline