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 ;
50 GENERIC: c-type ( name -- c-type ) foldable
52 PREDICATE: c-type-word < word
55 TUPLE: pointer { to initial: void read-only } ;
61 : resolve-typedef ( name -- c-type )
62 dup void? [ no-c-type ] when
63 dup c-type-name? [ c-type ] when ;
66 dup "c-type" word-prop resolve-typedef
67 [ ] [ no-c-type ] ?if ;
69 GENERIC: c-struct? ( c-type -- ? )
71 M: object c-struct? drop f ;
73 M: c-type-name c-struct? dup void? [ drop f ] [ c-type c-struct? ] if ;
75 ! These words being foldable means that words need to be
76 ! recompiled if a C type is redefined. Even so, folding the
77 ! size facilitates some optimizations.
78 GENERIC: c-type-class ( name -- class )
80 M: abstract-c-type c-type-class class>> ;
82 M: c-type-name c-type-class c-type c-type-class ;
84 GENERIC: c-type-boxed-class ( name -- class )
86 M: abstract-c-type c-type-boxed-class boxed-class>> ;
88 M: c-type-name c-type-boxed-class c-type c-type-boxed-class ;
90 GENERIC: c-type-boxer ( name -- boxer )
92 M: c-type c-type-boxer boxer>> ;
94 M: c-type-name c-type-boxer c-type c-type-boxer ;
96 GENERIC: c-type-boxer-quot ( name -- quot )
98 M: abstract-c-type c-type-boxer-quot boxer-quot>> ;
100 M: c-type-name c-type-boxer-quot c-type c-type-boxer-quot ;
102 GENERIC: c-type-unboxer ( name -- boxer )
104 M: c-type c-type-unboxer unboxer>> ;
106 M: c-type-name c-type-unboxer c-type c-type-unboxer ;
108 GENERIC: c-type-unboxer-quot ( name -- quot )
110 M: abstract-c-type c-type-unboxer-quot unboxer-quot>> ;
112 M: c-type-name c-type-unboxer-quot c-type c-type-unboxer-quot ;
114 GENERIC: c-type-rep ( name -- rep )
116 M: c-type c-type-rep rep>> ;
118 M: c-type-name c-type-rep c-type c-type-rep ;
120 GENERIC: c-type-getter ( name -- quot )
122 M: c-type c-type-getter getter>> ;
124 M: c-type-name c-type-getter c-type c-type-getter ;
126 GENERIC: c-type-setter ( name -- quot )
128 M: c-type c-type-setter setter>> ;
130 M: c-type-name c-type-setter c-type c-type-setter ;
132 GENERIC: c-type-align ( name -- n )
134 M: abstract-c-type c-type-align align>> ;
136 M: c-type-name c-type-align c-type c-type-align ;
138 GENERIC: c-type-align-first ( name -- n )
140 M: c-type-name c-type-align-first c-type c-type-align-first ;
142 M: abstract-c-type c-type-align-first align-first>> ;
144 GENERIC: c-type-stack-align? ( name -- ? )
146 M: c-type c-type-stack-align? stack-align?>> ;
148 M: c-type-name c-type-stack-align? c-type c-type-stack-align? ;
150 : c-type-box ( n c-type -- )
151 [ c-type-rep ] [ c-type-boxer [ "No boxer" throw ] unless* ] bi
154 : c-type-unbox ( n c-type -- )
155 [ c-type-rep ] [ c-type-unboxer [ "No unboxer" throw ] unless* ] bi
158 GENERIC: box-parameter ( n c-type -- )
160 M: c-type box-parameter c-type-box ;
162 M: c-type-name box-parameter c-type box-parameter ;
164 GENERIC: box-return ( c-type -- )
166 M: c-type box-return f swap c-type-box ;
168 M: c-type-name box-return c-type box-return ;
170 GENERIC: unbox-parameter ( n c-type -- )
172 M: c-type unbox-parameter c-type-unbox ;
174 M: c-type-name unbox-parameter c-type unbox-parameter ;
176 GENERIC: unbox-return ( c-type -- )
178 M: c-type unbox-return f swap c-type-unbox ;
180 M: c-type-name unbox-return c-type unbox-return ;
182 : little-endian? ( -- ? ) 1 <int> *char 1 = ; foldable
184 GENERIC: heap-size ( name -- size )
186 M: c-type-name heap-size c-type heap-size ;
188 M: abstract-c-type heap-size size>> ;
190 GENERIC: stack-size ( name -- size )
192 M: c-type-name stack-size c-type stack-size ;
194 M: c-type stack-size size>> cell align ;
196 GENERIC: byte-length ( seq -- n ) flushable
198 M: byte-array byte-length length ; inline
200 M: f byte-length drop 0 ; inline
202 : >c-bool ( ? -- int ) 1 0 ? ; inline
204 : c-bool> ( int -- ? ) 0 = not ; inline
208 : c-getter ( name -- quot )
210 [ "Cannot read struct fields with this type" throw ]
213 : c-type-getter-boxer ( name -- quot )
214 [ c-getter ] [ c-type-boxer-quot ] bi append ;
216 : c-setter ( name -- quot )
218 [ "Cannot write struct fields with this type" throw ]
221 : array-accessor ( c-type quot -- def )
223 \ swap , [ heap-size , [ * >fixnum ] % ] [ % ] bi*
226 GENERIC: typedef ( old new -- )
228 PREDICATE: typedef-word < c-type-word
229 "c-type" word-prop c-type-name? ;
231 M: word typedef ( old new -- )
233 [ nip define-symbol ]
234 [ swap "c-type" set-word-prop ]
237 M: pointer typedef ( old new -- )
238 to>> dup c-type-word?
239 [ swap "pointer-c-type" set-word-prop ]
242 TUPLE: long-long-type < c-type ;
244 : <long-long-type> ( -- c-type )
247 M: long-long-type unbox-parameter ( n c-type -- )
248 c-type-unboxer %unbox-long-long ;
250 M: long-long-type unbox-return ( c-type -- )
251 f swap unbox-parameter ;
253 M: long-long-type box-parameter ( n c-type -- )
254 c-type-boxer %box-long-long ;
256 M: long-long-type box-return ( c-type -- )
257 f swap box-parameter ;
259 : define-deref ( c-type -- )
260 [ name>> CHAR: * prefix "alien.c-types" create ] [ c-getter 0 prefix ] bi
261 (( c-ptr -- value )) define-inline ;
263 : define-out ( c-type -- )
264 [ name>> "alien.c-types" constructor-word ]
265 [ dup c-setter '[ _ heap-size (byte-array) [ 0 @ ] keep ] ] bi
266 (( value -- c-ptr )) define-inline ;
268 : define-primitive-type ( c-type name -- )
269 [ typedef ] [ define-deref ] [ define-out ] tri ;
271 : if-void ( c-type true false -- )
272 pick void? [ drop nip call ] [ nip call ] if ; inline
275 ptrdiff_t intptr_t uintptr_t size_t
278 CONSTANT: primitive-types
290 : (pointer-c-type) ( void* type -- void*' )
291 [ clone ] dip c-type-boxer-quot '[ _ [ f ] if* ] >>boxer-quot ;
295 : resolve-pointer-typedef ( type -- base-type )
296 dup "c-type" word-prop dup word?
297 [ nip resolve-pointer-typedef ] [
298 pointer? [ drop void* ] when
301 : special-pointer-type ( type -- special-type )
303 dup "pointer-c-type" word-prop
304 [ ] [ "c-type" word-prop special-pointer-type ] ?if
307 : primitive-pointer-type? ( type -- ? )
309 resolve-pointer-typedef [ void? ] [ primitive-types member? ] bi or
315 [ \ void* c-type ] dip
316 to>> dup special-pointer-type
318 dup primitive-pointer-type? [ drop ] [ (pointer-c-type) ] if
321 : 8-byte-alignment ( c-type -- c-type )
323 { [ cpu ppc? os macosx? and ] [ 4 >>align 8 >>align-first ] }
324 { [ cpu x86.32? os windows? not and ] [ 4 >>align 4 >>align-first ] }
325 [ 8 >>align 8 >>align-first ]
332 [ alien-cell ] >>getter
333 [ [ >c-ptr ] 2dip set-alien-cell ] >>setter
334 bootstrap-cell >>size
335 bootstrap-cell >>align
336 bootstrap-cell >>align-first
337 [ >c-ptr ] >>unboxer-quot
338 "allot_alien" >>boxer
339 "alien_offset" >>unboxer
340 \ void* define-primitive-type
344 integer >>boxed-class
345 [ alien-signed-4 ] >>getter
346 [ set-alien-signed-4 ] >>setter
350 "from_signed_4" >>boxer
351 "to_fixnum" >>unboxer
352 \ int define-primitive-type
356 integer >>boxed-class
357 [ alien-unsigned-4 ] >>getter
358 [ set-alien-unsigned-4 ] >>setter
362 "from_unsigned_4" >>boxer
364 \ uint define-primitive-type
369 [ alien-signed-2 ] >>getter
370 [ set-alien-signed-2 ] >>setter
374 "from_signed_2" >>boxer
375 "to_fixnum" >>unboxer
376 \ short define-primitive-type
381 [ alien-unsigned-2 ] >>getter
382 [ set-alien-unsigned-2 ] >>setter
386 "from_unsigned_2" >>boxer
388 \ ushort define-primitive-type
393 [ alien-signed-1 ] >>getter
394 [ set-alien-signed-1 ] >>setter
398 "from_signed_1" >>boxer
399 "to_fixnum" >>unboxer
400 \ char define-primitive-type
405 [ alien-unsigned-1 ] >>getter
406 [ set-alien-unsigned-1 ] >>setter
410 "from_unsigned_1" >>boxer
412 \ uchar define-primitive-type
416 [ alien-unsigned-4 c-bool> ] >>getter
417 [ [ >c-bool ] 2dip set-alien-unsigned-4 ] >>setter
421 "from_boolean" >>boxer
422 "to_boolean" >>unboxer
425 [ alien-unsigned-1 c-bool> ] >>getter
426 [ [ >c-bool ] 2dip set-alien-unsigned-1 ] >>setter
430 "from_boolean" >>boxer
431 "to_boolean" >>unboxer
433 \ bool define-primitive-type
437 math:float >>boxed-class
438 [ alien-float ] >>getter
439 [ [ >float ] 2dip set-alien-float ] >>setter
446 [ >float ] >>unboxer-quot
447 \ float define-primitive-type
451 math:float >>boxed-class
452 [ alien-double ] >>getter
453 [ [ >float ] 2dip set-alien-double ] >>setter
456 "from_double" >>boxer
457 "to_double" >>unboxer
459 [ >float ] >>unboxer-quot
460 \ double define-primitive-type
465 integer >>boxed-class
466 [ alien-signed-cell ] >>getter
467 [ set-alien-signed-cell ] >>setter
468 bootstrap-cell >>size
469 bootstrap-cell >>align
470 bootstrap-cell >>align-first
471 "from_signed_cell" >>boxer
472 "to_fixnum" >>unboxer
473 \ longlong define-primitive-type
477 integer >>boxed-class
478 [ alien-unsigned-cell ] >>getter
479 [ set-alien-unsigned-cell ] >>setter
480 bootstrap-cell >>size
481 bootstrap-cell >>align
482 bootstrap-cell >>align-first
483 "from_unsigned_cell" >>boxer
485 \ ulonglong define-primitive-type
488 \ int c-type \ long define-primitive-type
489 \ uint c-type \ ulong define-primitive-type
491 \ longlong c-type \ long define-primitive-type
492 \ ulonglong c-type \ ulong define-primitive-type
495 \ longlong c-type \ ptrdiff_t typedef
496 \ longlong c-type \ intptr_t typedef
498 \ ulonglong c-type \ uintptr_t typedef
499 \ ulonglong c-type \ size_t typedef
503 integer >>boxed-class
504 [ alien-signed-8 ] >>getter
505 [ set-alien-signed-8 ] >>setter
508 "from_signed_8" >>boxer
509 "to_signed_8" >>unboxer
510 \ longlong define-primitive-type
514 integer >>boxed-class
515 [ alien-unsigned-8 ] >>getter
516 [ set-alien-unsigned-8 ] >>setter
519 "from_unsigned_8" >>boxer
520 "to_unsigned_8" >>unboxer
521 \ ulonglong define-primitive-type
523 \ int c-type \ long define-primitive-type
524 \ uint c-type \ ulong define-primitive-type
526 \ int c-type \ ptrdiff_t typedef
527 \ int c-type \ intptr_t typedef
529 \ uint c-type \ uintptr_t typedef
530 \ uint c-type \ size_t typedef
533 \ char \ byte typedef
534 \ uchar \ ubyte typedef
535 ] with-compilation-unit
537 M: char-16-rep rep-component-type drop char ;
538 M: uchar-16-rep rep-component-type drop uchar ;
539 M: short-8-rep rep-component-type drop short ;
540 M: ushort-8-rep rep-component-type drop ushort ;
541 M: int-4-rep rep-component-type drop int ;
542 M: uint-4-rep rep-component-type drop uint ;
543 M: longlong-2-rep rep-component-type drop longlong ;
544 M: ulonglong-2-rep rep-component-type drop ulonglong ;
545 M: float-4-rep rep-component-type drop float ;
546 M: double-2-rep rep-component-type drop double ;
548 : (unsigned-interval) ( bytes -- from to ) [ 0 ] dip 8 * 2^ 1 - ; foldable
549 : unsigned-interval ( c-type -- from to ) heap-size (unsigned-interval) ; foldable
550 : (signed-interval) ( bytes -- from to ) 8 * 1 - 2^ [ neg ] [ 1 - ] bi ; foldable
551 : signed-interval ( c-type -- from to ) heap-size (signed-interval) ; foldable
553 : c-type-interval ( c-type -- from to )
555 { [ dup { float double } member-eq? ] [ drop -1/0. 1/0. ] }
556 { [ dup { char short int long longlong } member-eq? ] [ signed-interval ] }
557 { [ dup { uchar ushort uint ulong ulonglong } member-eq? ] [ unsigned-interval ] }
560 : c-type-clamp ( value c-type -- value' )
561 dup { float double } member-eq?
562 [ drop ] [ c-type-interval clamp ] if ; inline