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 ;
73 dup "c-type" word-prop resolve-typedef
74 [ ] [ no-c-type ] ?if ;
76 GENERIC: c-struct? ( c-type -- ? )
78 M: object c-struct? drop f ;
80 M: c-type-name c-struct? dup void? [ drop f ] [ c-type c-struct? ] if ;
82 ! These words being foldable means that words need to be
83 ! recompiled if a C type is redefined. Even so, folding the
84 ! size facilitates some optimizations.
85 GENERIC: c-type-class ( name -- class )
87 M: abstract-c-type c-type-class class>> ;
89 M: c-type-name c-type-class c-type c-type-class ;
91 GENERIC: c-type-boxed-class ( name -- class )
93 M: abstract-c-type c-type-boxed-class boxed-class>> ;
95 M: c-type-name c-type-boxed-class c-type c-type-boxed-class ;
97 GENERIC: c-type-boxer ( name -- boxer )
99 M: c-type c-type-boxer boxer>> ;
101 M: c-type-name c-type-boxer c-type c-type-boxer ;
103 GENERIC: c-type-boxer-quot ( name -- quot )
105 M: abstract-c-type c-type-boxer-quot boxer-quot>> ;
107 M: c-type-name c-type-boxer-quot c-type c-type-boxer-quot ;
109 GENERIC: c-type-unboxer ( name -- boxer )
111 M: c-type c-type-unboxer unboxer>> ;
113 M: c-type-name c-type-unboxer c-type c-type-unboxer ;
115 GENERIC: c-type-unboxer-quot ( name -- quot )
117 M: abstract-c-type c-type-unboxer-quot unboxer-quot>> ;
119 M: c-type-name c-type-unboxer-quot c-type c-type-unboxer-quot ;
121 GENERIC: c-type-rep ( name -- rep )
123 M: c-type c-type-rep rep>> ;
125 M: c-type-name c-type-rep c-type c-type-rep ;
127 GENERIC: c-type-getter ( name -- quot )
129 M: c-type c-type-getter getter>> ;
131 M: c-type-name c-type-getter c-type c-type-getter ;
133 GENERIC: c-type-setter ( name -- quot )
135 M: c-type c-type-setter setter>> ;
137 M: c-type-name c-type-setter c-type c-type-setter ;
139 GENERIC: c-type-align ( name -- n )
141 M: abstract-c-type c-type-align align>> ;
143 M: c-type-name c-type-align c-type c-type-align ;
145 GENERIC: c-type-align-first ( name -- n )
147 M: c-type-name c-type-align-first c-type c-type-align-first ;
149 M: abstract-c-type c-type-align-first align-first>> ;
151 GENERIC: c-type-stack-align? ( name -- ? )
153 M: c-type c-type-stack-align? stack-align?>> ;
155 M: c-type-name c-type-stack-align? c-type c-type-stack-align? ;
157 : c-type-box ( n c-type -- )
158 [ c-type-rep ] [ c-type-boxer [ "No boxer" throw ] unless* ] bi
161 : c-type-unbox ( n c-type -- )
162 [ c-type-rep ] [ c-type-unboxer [ "No unboxer" throw ] unless* ] bi
165 GENERIC: box-parameter ( n c-type -- )
167 M: c-type box-parameter c-type-box ;
169 M: c-type-name box-parameter c-type box-parameter ;
171 GENERIC: box-return ( c-type -- )
173 M: c-type box-return f swap c-type-box ;
175 M: c-type-name box-return c-type box-return ;
177 GENERIC: unbox-parameter ( n c-type -- )
179 M: c-type unbox-parameter c-type-unbox ;
181 M: c-type-name unbox-parameter c-type unbox-parameter ;
183 GENERIC: unbox-return ( c-type -- )
185 M: c-type unbox-return f swap c-type-unbox ;
187 M: c-type-name unbox-return c-type unbox-return ;
189 : little-endian? ( -- ? ) 1 <int> *char 1 = ; foldable
191 GENERIC: heap-size ( name -- size )
193 M: c-type-name heap-size c-type heap-size ;
195 M: abstract-c-type heap-size size>> ;
197 GENERIC: stack-size ( name -- size )
199 M: c-type-name stack-size c-type stack-size ;
201 M: c-type stack-size size>> cell align ;
203 GENERIC: byte-length ( seq -- n ) flushable
205 M: byte-array byte-length length ; inline
207 M: f byte-length drop 0 ; inline
209 : >c-bool ( ? -- int ) 1 0 ? ; inline
211 : c-bool> ( int -- ? ) 0 = not ; inline
215 : c-getter ( name -- quot )
217 [ "Cannot read struct fields with this type" throw ]
220 : c-type-getter-boxer ( name -- quot )
221 [ c-getter ] [ c-type-boxer-quot ] bi append ;
223 : c-setter ( name -- quot )
225 [ "Cannot write struct fields with this type" throw ]
228 : array-accessor ( c-type quot -- def )
230 \ swap , [ heap-size , [ * >fixnum ] % ] [ % ] bi*
233 GENERIC: typedef ( old new -- )
235 PREDICATE: typedef-word < c-type-word
236 "c-type" word-prop c-type-name? ;
238 M: word typedef ( old new -- )
240 [ nip define-symbol ]
241 [ swap "c-type" set-word-prop ]
243 swap dup c-type-name? [
245 "pointer-c-type" set-word-prop
250 TUPLE: long-long-type < c-type ;
252 : <long-long-type> ( -- c-type )
255 M: long-long-type unbox-parameter ( n c-type -- )
256 c-type-unboxer %unbox-long-long ;
258 M: long-long-type unbox-return ( c-type -- )
259 f swap unbox-parameter ;
261 M: long-long-type box-parameter ( n c-type -- )
262 c-type-boxer %box-long-long ;
264 M: long-long-type box-return ( c-type -- )
265 f swap box-parameter ;
267 : define-deref ( c-type -- )
268 [ name>> CHAR: * prefix "alien.c-types" create ] [ c-getter 0 prefix ] bi
269 (( c-ptr -- value )) define-inline ;
271 : define-out ( c-type -- )
272 [ name>> "alien.c-types" constructor-word ]
273 [ dup c-setter '[ _ heap-size (byte-array) [ 0 @ ] keep ] ] bi
274 (( value -- c-ptr )) define-inline ;
276 : define-primitive-type ( c-type name -- )
277 [ typedef ] [ define-deref ] [ define-out ] tri ;
279 : if-void ( c-type true false -- )
280 pick void? [ drop nip call ] [ nip call ] if ; inline
282 CONSTANT: primitive-types
294 ptrdiff_t intptr_t uintptr_t size_t
297 : 8-byte-alignment ( c-type -- c-type )
299 { [ cpu ppc? os macosx? and ] [ 4 >>align 8 >>align-first ] }
300 { [ cpu x86.32? os windows? not and ] [ 4 >>align 4 >>align-first ] }
301 [ 8 >>align 8 >>align-first ]
308 [ alien-cell ] >>getter
309 [ [ >c-ptr ] 2dip set-alien-cell ] >>setter
310 bootstrap-cell >>size
311 bootstrap-cell >>align
312 bootstrap-cell >>align-first
313 [ >c-ptr ] >>unboxer-quot
314 "allot_alien" >>boxer
315 "alien_offset" >>unboxer
316 \ void* define-primitive-type
320 integer >>boxed-class
321 [ alien-signed-4 ] >>getter
322 [ set-alien-signed-4 ] >>setter
326 "from_signed_4" >>boxer
327 "to_fixnum" >>unboxer
328 \ int define-primitive-type
332 integer >>boxed-class
333 [ alien-unsigned-4 ] >>getter
334 [ set-alien-unsigned-4 ] >>setter
338 "from_unsigned_4" >>boxer
340 \ uint define-primitive-type
345 [ alien-signed-2 ] >>getter
346 [ set-alien-signed-2 ] >>setter
350 "from_signed_2" >>boxer
351 "to_fixnum" >>unboxer
352 \ short define-primitive-type
357 [ alien-unsigned-2 ] >>getter
358 [ set-alien-unsigned-2 ] >>setter
362 "from_unsigned_2" >>boxer
364 \ ushort define-primitive-type
369 [ alien-signed-1 ] >>getter
370 [ set-alien-signed-1 ] >>setter
374 "from_signed_1" >>boxer
375 "to_fixnum" >>unboxer
376 \ char define-primitive-type
381 [ alien-unsigned-1 ] >>getter
382 [ set-alien-unsigned-1 ] >>setter
386 "from_unsigned_1" >>boxer
388 \ uchar define-primitive-type
392 [ alien-unsigned-4 c-bool> ] >>getter
393 [ [ >c-bool ] 2dip set-alien-unsigned-4 ] >>setter
397 "from_boolean" >>boxer
398 "to_boolean" >>unboxer
401 [ alien-unsigned-1 c-bool> ] >>getter
402 [ [ >c-bool ] 2dip set-alien-unsigned-1 ] >>setter
406 "from_boolean" >>boxer
407 "to_boolean" >>unboxer
409 \ bool define-primitive-type
413 math:float >>boxed-class
414 [ alien-float ] >>getter
415 [ [ >float ] 2dip set-alien-float ] >>setter
422 [ >float ] >>unboxer-quot
423 \ float define-primitive-type
427 math:float >>boxed-class
428 [ alien-double ] >>getter
429 [ [ >float ] 2dip set-alien-double ] >>setter
432 "from_double" >>boxer
433 "to_double" >>unboxer
435 [ >float ] >>unboxer-quot
436 \ double define-primitive-type
441 integer >>boxed-class
442 [ alien-signed-cell ] >>getter
443 [ set-alien-signed-cell ] >>setter
444 bootstrap-cell >>size
445 bootstrap-cell >>align
446 bootstrap-cell >>align-first
447 "from_signed_cell" >>boxer
448 "to_fixnum" >>unboxer
449 \ longlong define-primitive-type
453 integer >>boxed-class
454 [ alien-unsigned-cell ] >>getter
455 [ set-alien-unsigned-cell ] >>setter
456 bootstrap-cell >>size
457 bootstrap-cell >>align
458 bootstrap-cell >>align-first
459 "from_unsigned_cell" >>boxer
461 \ ulonglong define-primitive-type
464 \ int c-type \ long define-primitive-type
465 \ uint c-type \ ulong define-primitive-type
467 \ longlong c-type \ long define-primitive-type
468 \ ulonglong c-type \ ulong define-primitive-type
471 \ longlong c-type \ ptrdiff_t typedef
472 \ longlong c-type \ intptr_t typedef
474 \ ulonglong c-type \ uintptr_t typedef
475 \ ulonglong c-type \ size_t typedef
479 integer >>boxed-class
480 [ alien-signed-8 ] >>getter
481 [ set-alien-signed-8 ] >>setter
484 "from_signed_8" >>boxer
485 "to_signed_8" >>unboxer
486 \ longlong define-primitive-type
490 integer >>boxed-class
491 [ alien-unsigned-8 ] >>getter
492 [ set-alien-unsigned-8 ] >>setter
495 "from_unsigned_8" >>boxer
496 "to_unsigned_8" >>unboxer
497 \ ulonglong define-primitive-type
499 \ int c-type \ long define-primitive-type
500 \ uint c-type \ ulong define-primitive-type
502 \ int c-type \ ptrdiff_t typedef
503 \ int c-type \ intptr_t typedef
505 \ uint c-type \ uintptr_t typedef
506 \ uint c-type \ size_t typedef
508 ] with-compilation-unit
510 M: char-16-rep rep-component-type drop char ;
511 M: uchar-16-rep rep-component-type drop uchar ;
512 M: short-8-rep rep-component-type drop short ;
513 M: ushort-8-rep rep-component-type drop ushort ;
514 M: int-4-rep rep-component-type drop int ;
515 M: uint-4-rep rep-component-type drop uint ;
516 M: longlong-2-rep rep-component-type drop longlong ;
517 M: ulonglong-2-rep rep-component-type drop ulonglong ;
518 M: float-4-rep rep-component-type drop float ;
519 M: double-2-rep rep-component-type drop double ;
521 : (unsigned-interval) ( bytes -- from to ) [ 0 ] dip 8 * 2^ 1 - ; foldable
522 : unsigned-interval ( c-type -- from to ) heap-size (unsigned-interval) ; foldable
523 : (signed-interval) ( bytes -- from to ) 8 * 1 - 2^ [ neg ] [ 1 - ] bi ; foldable
524 : signed-interval ( c-type -- from to ) heap-size (signed-interval) ; foldable
526 : c-type-interval ( c-type -- from to )
528 { [ dup { float double } member-eq? ] [ drop -1/0. 1/0. ] }
529 { [ dup { char short int long longlong } member-eq? ] [ signed-interval ] }
530 { [ dup { uchar ushort uint ulong ulonglong } member-eq? ] [ unsigned-interval ] }
533 : c-type-clamp ( value c-type -- value' )
534 dup { float double } member-eq?
535 [ drop ] [ c-type-interval clamp ] if ; inline