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 ;
48 PREDICATE: c-type-word < word
51 UNION: c-type-name string c-type-word ;
54 GENERIC: c-type ( name -- c-type ) foldable
56 GENERIC: resolve-pointer-type ( name -- c-type )
58 << \ void \ void* "pointer-c-type" set-word-prop >>
60 : void? ( c-type -- ? )
61 { void "void" } member? ;
63 M: word resolve-pointer-type
64 dup "pointer-c-type" word-prop
65 [ ] [ drop void* ] ?if ;
67 M: array resolve-pointer-type
68 first resolve-pointer-type ;
70 : resolve-typedef ( name -- c-type )
71 dup void? [ no-c-type ] when
72 dup c-type-name? [ c-type ] when ;
76 : parse-array-type ( name -- dims c-type )
78 [ [ "]" ?tail drop string>number ] map ] dip ;
83 dup "c-type" word-prop resolve-typedef
84 [ ] [ no-c-type ] ?if ;
86 GENERIC: c-struct? ( c-type -- ? )
88 M: object c-struct? drop f ;
90 M: c-type-name c-struct? dup void? [ drop f ] [ c-type c-struct? ] if ;
92 ! These words being foldable means that words need to be
93 ! recompiled if a C type is redefined. Even so, folding the
94 ! size facilitates some optimizations.
95 GENERIC: c-type-class ( name -- class )
97 M: abstract-c-type c-type-class class>> ;
99 M: c-type-name c-type-class c-type c-type-class ;
101 GENERIC: c-type-boxed-class ( name -- class )
103 M: abstract-c-type c-type-boxed-class boxed-class>> ;
105 M: c-type-name c-type-boxed-class c-type c-type-boxed-class ;
107 GENERIC: c-type-boxer ( name -- boxer )
109 M: c-type c-type-boxer boxer>> ;
111 M: c-type-name c-type-boxer c-type c-type-boxer ;
113 GENERIC: c-type-boxer-quot ( name -- quot )
115 M: abstract-c-type c-type-boxer-quot boxer-quot>> ;
117 M: c-type-name c-type-boxer-quot c-type c-type-boxer-quot ;
119 GENERIC: c-type-unboxer ( name -- boxer )
121 M: c-type c-type-unboxer unboxer>> ;
123 M: c-type-name c-type-unboxer c-type c-type-unboxer ;
125 GENERIC: c-type-unboxer-quot ( name -- quot )
127 M: abstract-c-type c-type-unboxer-quot unboxer-quot>> ;
129 M: c-type-name c-type-unboxer-quot c-type c-type-unboxer-quot ;
131 GENERIC: c-type-rep ( name -- rep )
133 M: c-type c-type-rep rep>> ;
135 M: c-type-name c-type-rep c-type c-type-rep ;
137 GENERIC: c-type-getter ( name -- quot )
139 M: c-type c-type-getter getter>> ;
141 M: c-type-name c-type-getter c-type c-type-getter ;
143 GENERIC: c-type-setter ( name -- quot )
145 M: c-type c-type-setter setter>> ;
147 M: c-type-name c-type-setter c-type c-type-setter ;
149 GENERIC: c-type-align ( name -- n )
151 M: abstract-c-type c-type-align align>> ;
153 M: c-type-name c-type-align c-type c-type-align ;
155 GENERIC: c-type-align-first ( name -- n )
157 M: c-type-name c-type-align-first c-type c-type-align-first ;
159 M: abstract-c-type c-type-align-first align-first>> ;
161 GENERIC: c-type-stack-align? ( name -- ? )
163 M: c-type c-type-stack-align? stack-align?>> ;
165 M: c-type-name c-type-stack-align? c-type c-type-stack-align? ;
167 : c-type-box ( n c-type -- )
168 [ c-type-rep ] [ c-type-boxer [ "No boxer" throw ] unless* ] bi
171 : c-type-unbox ( n c-type -- )
172 [ c-type-rep ] [ c-type-unboxer [ "No unboxer" throw ] unless* ] bi
175 GENERIC: box-parameter ( n c-type -- )
177 M: c-type box-parameter c-type-box ;
179 M: c-type-name box-parameter c-type box-parameter ;
181 GENERIC: box-return ( c-type -- )
183 M: c-type box-return f swap c-type-box ;
185 M: c-type-name box-return c-type box-return ;
187 GENERIC: unbox-parameter ( n c-type -- )
189 M: c-type unbox-parameter c-type-unbox ;
191 M: c-type-name unbox-parameter c-type unbox-parameter ;
193 GENERIC: unbox-return ( c-type -- )
195 M: c-type unbox-return f swap c-type-unbox ;
197 M: c-type-name unbox-return c-type unbox-return ;
199 : little-endian? ( -- ? ) 1 <int> *char 1 = ; foldable
201 GENERIC: heap-size ( name -- size )
203 M: c-type-name heap-size c-type heap-size ;
205 M: abstract-c-type heap-size size>> ;
207 GENERIC: stack-size ( name -- size )
209 M: c-type-name stack-size c-type stack-size ;
211 M: c-type stack-size size>> cell align ;
213 GENERIC: byte-length ( seq -- n ) flushable
215 M: byte-array byte-length length ; inline
217 M: f byte-length drop 0 ; inline
219 : >c-bool ( ? -- int ) 1 0 ? ; inline
221 : c-bool> ( int -- ? ) 0 = not ; inline
225 : c-getter ( name -- quot )
227 [ "Cannot read struct fields with this type" throw ]
230 : c-type-getter-boxer ( name -- quot )
231 [ c-getter ] [ c-type-boxer-quot ] bi append ;
233 : c-setter ( name -- quot )
235 [ "Cannot write struct fields with this type" throw ]
238 : array-accessor ( c-type quot -- def )
240 \ swap , [ heap-size , [ * >fixnum ] % ] [ % ] bi*
243 GENERIC: typedef ( old new -- )
245 PREDICATE: typedef-word < c-type-word
246 "c-type" word-prop c-type-name? ;
248 M: word typedef ( old new -- )
250 [ nip define-symbol ]
251 [ swap "c-type" set-word-prop ]
253 swap dup c-type-name? [
255 "pointer-c-type" set-word-prop
260 TUPLE: long-long-type < c-type ;
262 : <long-long-type> ( -- c-type )
265 M: long-long-type unbox-parameter ( n c-type -- )
266 c-type-unboxer %unbox-long-long ;
268 M: long-long-type unbox-return ( c-type -- )
269 f swap unbox-parameter ;
271 M: long-long-type box-parameter ( n c-type -- )
272 c-type-boxer %box-long-long ;
274 M: long-long-type box-return ( c-type -- )
275 f swap box-parameter ;
277 : define-deref ( c-type -- )
278 [ name>> CHAR: * prefix "alien.c-types" create ] [ c-getter 0 prefix ] bi
279 (( c-ptr -- value )) define-inline ;
281 : define-out ( c-type -- )
282 [ name>> "alien.c-types" constructor-word ]
283 [ dup c-setter '[ _ heap-size (byte-array) [ 0 @ ] keep ] ] bi
284 (( value -- c-ptr )) define-inline ;
286 : define-primitive-type ( c-type name -- )
287 [ typedef ] [ define-deref ] [ define-out ] tri ;
289 : if-void ( c-type true false -- )
290 pick void? [ drop nip call ] [ nip call ] if ; inline
292 CONSTANT: primitive-types
304 ptrdiff_t intptr_t uintptr_t size_t
307 : 8-byte-alignment ( c-type -- c-type )
309 { [ cpu ppc? os macosx? and ] [ 4 >>align 8 >>align-first ] }
310 { [ cpu x86.32? os windows? not and ] [ 4 >>align 4 >>align-first ] }
311 [ 8 >>align 8 >>align-first ]
318 [ alien-cell ] >>getter
319 [ [ >c-ptr ] 2dip set-alien-cell ] >>setter
320 bootstrap-cell >>size
321 bootstrap-cell >>align
322 bootstrap-cell >>align-first
323 [ >c-ptr ] >>unboxer-quot
324 "allot_alien" >>boxer
325 "alien_offset" >>unboxer
326 \ void* define-primitive-type
330 integer >>boxed-class
331 [ alien-signed-4 ] >>getter
332 [ set-alien-signed-4 ] >>setter
336 "from_signed_4" >>boxer
337 "to_fixnum" >>unboxer
338 \ int define-primitive-type
342 integer >>boxed-class
343 [ alien-unsigned-4 ] >>getter
344 [ set-alien-unsigned-4 ] >>setter
348 "from_unsigned_4" >>boxer
350 \ uint define-primitive-type
355 [ alien-signed-2 ] >>getter
356 [ set-alien-signed-2 ] >>setter
360 "from_signed_2" >>boxer
361 "to_fixnum" >>unboxer
362 \ short define-primitive-type
367 [ alien-unsigned-2 ] >>getter
368 [ set-alien-unsigned-2 ] >>setter
372 "from_unsigned_2" >>boxer
374 \ ushort define-primitive-type
379 [ alien-signed-1 ] >>getter
380 [ set-alien-signed-1 ] >>setter
384 "from_signed_1" >>boxer
385 "to_fixnum" >>unboxer
386 \ char define-primitive-type
391 [ alien-unsigned-1 ] >>getter
392 [ set-alien-unsigned-1 ] >>setter
396 "from_unsigned_1" >>boxer
398 \ uchar define-primitive-type
402 [ alien-unsigned-4 c-bool> ] >>getter
403 [ [ >c-bool ] 2dip set-alien-unsigned-4 ] >>setter
407 "from_boolean" >>boxer
408 "to_boolean" >>unboxer
411 [ alien-unsigned-1 c-bool> ] >>getter
412 [ [ >c-bool ] 2dip set-alien-unsigned-1 ] >>setter
416 "from_boolean" >>boxer
417 "to_boolean" >>unboxer
419 \ bool define-primitive-type
423 math:float >>boxed-class
424 [ alien-float ] >>getter
425 [ [ >float ] 2dip set-alien-float ] >>setter
432 [ >float ] >>unboxer-quot
433 \ float define-primitive-type
437 math:float >>boxed-class
438 [ alien-double ] >>getter
439 [ [ >float ] 2dip set-alien-double ] >>setter
442 "from_double" >>boxer
443 "to_double" >>unboxer
445 [ >float ] >>unboxer-quot
446 \ double define-primitive-type
451 integer >>boxed-class
452 [ alien-signed-cell ] >>getter
453 [ set-alien-signed-cell ] >>setter
454 bootstrap-cell >>size
455 bootstrap-cell >>align
456 bootstrap-cell >>align-first
457 "from_signed_cell" >>boxer
458 "to_fixnum" >>unboxer
459 \ longlong define-primitive-type
463 integer >>boxed-class
464 [ alien-unsigned-cell ] >>getter
465 [ set-alien-unsigned-cell ] >>setter
466 bootstrap-cell >>size
467 bootstrap-cell >>align
468 bootstrap-cell >>align-first
469 "from_unsigned_cell" >>boxer
471 \ ulonglong define-primitive-type
474 \ int c-type \ long define-primitive-type
475 \ uint c-type \ ulong define-primitive-type
477 \ longlong c-type \ long define-primitive-type
478 \ ulonglong c-type \ ulong define-primitive-type
481 \ longlong c-type \ ptrdiff_t typedef
482 \ longlong c-type \ intptr_t typedef
484 \ ulonglong c-type \ uintptr_t typedef
485 \ ulonglong c-type \ size_t typedef
489 integer >>boxed-class
490 [ alien-signed-8 ] >>getter
491 [ set-alien-signed-8 ] >>setter
494 "from_signed_8" >>boxer
495 "to_signed_8" >>unboxer
496 \ longlong define-primitive-type
500 integer >>boxed-class
501 [ alien-unsigned-8 ] >>getter
502 [ set-alien-unsigned-8 ] >>setter
505 "from_unsigned_8" >>boxer
506 "to_unsigned_8" >>unboxer
507 \ ulonglong define-primitive-type
509 \ int c-type \ long define-primitive-type
510 \ uint c-type \ ulong define-primitive-type
512 \ int c-type \ ptrdiff_t typedef
513 \ int c-type \ intptr_t typedef
515 \ uint c-type \ uintptr_t typedef
516 \ uint c-type \ size_t typedef
518 ] with-compilation-unit
520 M: char-16-rep rep-component-type drop char ;
521 M: uchar-16-rep rep-component-type drop uchar ;
522 M: short-8-rep rep-component-type drop short ;
523 M: ushort-8-rep rep-component-type drop ushort ;
524 M: int-4-rep rep-component-type drop int ;
525 M: uint-4-rep rep-component-type drop uint ;
526 M: longlong-2-rep rep-component-type drop longlong ;
527 M: ulonglong-2-rep rep-component-type drop ulonglong ;
528 M: float-4-rep rep-component-type drop float ;
529 M: double-2-rep rep-component-type drop double ;
531 : (unsigned-interval) ( bytes -- from to ) [ 0 ] dip 8 * 2^ 1 - ; foldable
532 : unsigned-interval ( c-type -- from to ) heap-size (unsigned-interval) ; foldable
533 : (signed-interval) ( bytes -- from to ) 8 * 1 - 2^ [ neg ] [ 1 - ] bi ; foldable
534 : signed-interval ( c-type -- from to ) heap-size (signed-interval) ; foldable
536 : c-type-interval ( c-type -- from to )
538 { [ dup { float double } member-eq? ] [ drop -1/0. 1/0. ] }
539 { [ dup { char short int long longlong } member-eq? ] [ signed-interval ] }
540 { [ dup { uchar ushort uint ulong ulonglong } member-eq? ] [ unsigned-interval ] }
543 : c-type-clamp ( value c-type -- value' )
544 dup { float double } member-eq?
545 [ drop ] [ c-type-interval clamp ] if ; inline