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
52 GENERIC: c-type ( name -- c-type ) foldable
54 : void? ( c-type -- ? )
57 TUPLE: pointer { to initial: void read-only } ;
60 : resolve-typedef ( name -- c-type )
61 dup void? [ no-c-type ] when
62 dup c-type-word? [ c-type ] when ;
66 : parse-array-type ( name -- dims c-type )
68 [ [ "]" ?tail drop string>number ] map ] dip ;
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-word 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-word 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-word 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-word 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-word 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-word 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-word 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-word 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-word 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-word 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-word c-type-align c-type c-type-align ;
145 GENERIC: c-type-align-first ( name -- n )
147 M: c-type-word 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-word 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-word 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-word 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-word 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-word unbox-return c-type unbox-return ;
189 : little-endian? ( -- ? ) 1 <int> *char 1 = ; foldable
191 GENERIC: heap-size ( name -- size )
193 M: c-type-word heap-size c-type heap-size ;
195 M: abstract-c-type heap-size size>> ;
197 GENERIC: stack-size ( name -- size )
199 M: c-type-word 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-word? ;
238 M: word typedef ( old new -- )
240 [ nip define-symbol ]
241 [ swap "c-type" set-word-prop ]
244 M: pointer typedef ( old new -- )
245 to>> dup c-type-word?
249 TUPLE: long-long-type < c-type ;
251 : <long-long-type> ( -- c-type )
254 M: long-long-type unbox-parameter ( n c-type -- )
255 c-type-unboxer %unbox-long-long ;
257 M: long-long-type unbox-return ( c-type -- )
258 f swap unbox-parameter ;
260 M: long-long-type box-parameter ( n c-type -- )
261 c-type-boxer %box-long-long ;
263 M: long-long-type box-return ( c-type -- )
264 f swap box-parameter ;
266 : define-deref ( c-type -- )
267 [ name>> CHAR: * prefix "alien.c-types" create ] [ c-getter 0 prefix ] bi
268 (( c-ptr -- value )) define-inline ;
270 : define-out ( c-type -- )
271 [ name>> "alien.c-types" constructor-word ]
272 [ dup c-setter '[ _ heap-size (byte-array) [ 0 @ ] keep ] ] bi
273 (( value -- c-ptr )) define-inline ;
275 : define-primitive-type ( c-type name -- )
276 [ typedef ] [ define-deref ] [ define-out ] tri ;
278 : if-void ( c-type true false -- )
279 pick void? [ drop nip call ] [ nip call ] if ; inline
281 CONSTANT: primitive-types
293 ptrdiff_t intptr_t uintptr_t size_t
298 : (pointer-c-type) ( void* type -- void*' )
299 [ clone ] dip c-type-boxer-quot >>boxer-quot ;
301 : string-pointer-type? ( type -- ? )
302 dup pointer? [ drop f ]
303 [ resolve-typedef { char uchar } member? ] if ;
305 : primitive-pointer-type? ( type -- ? )
306 dup pointer? [ drop t ] [
307 resolve-typedef [ void? ] [ primitive-types member? ] bi or
313 [ \ void* c-type ] dip
315 { [ dup string-pointer-type? ] [ drop \ char* c-type ] }
316 { [ dup primitive-pointer-type? ] [ drop ] }
320 : 8-byte-alignment ( c-type -- c-type )
322 { [ cpu ppc? os macosx? and ] [ 4 >>align 8 >>align-first ] }
323 { [ cpu x86.32? os windows? not and ] [ 4 >>align 4 >>align-first ] }
324 [ 8 >>align 8 >>align-first ]
331 [ alien-cell ] >>getter
332 [ [ >c-ptr ] 2dip set-alien-cell ] >>setter
333 bootstrap-cell >>size
334 bootstrap-cell >>align
335 bootstrap-cell >>align-first
336 [ >c-ptr ] >>unboxer-quot
337 "allot_alien" >>boxer
338 "alien_offset" >>unboxer
339 \ void* define-primitive-type
343 integer >>boxed-class
344 [ alien-signed-4 ] >>getter
345 [ set-alien-signed-4 ] >>setter
349 "from_signed_4" >>boxer
350 "to_fixnum" >>unboxer
351 \ int define-primitive-type
355 integer >>boxed-class
356 [ alien-unsigned-4 ] >>getter
357 [ set-alien-unsigned-4 ] >>setter
361 "from_unsigned_4" >>boxer
363 \ uint define-primitive-type
368 [ alien-signed-2 ] >>getter
369 [ set-alien-signed-2 ] >>setter
373 "from_signed_2" >>boxer
374 "to_fixnum" >>unboxer
375 \ short define-primitive-type
380 [ alien-unsigned-2 ] >>getter
381 [ set-alien-unsigned-2 ] >>setter
385 "from_unsigned_2" >>boxer
387 \ ushort define-primitive-type
392 [ alien-signed-1 ] >>getter
393 [ set-alien-signed-1 ] >>setter
397 "from_signed_1" >>boxer
398 "to_fixnum" >>unboxer
399 \ char define-primitive-type
404 [ alien-unsigned-1 ] >>getter
405 [ set-alien-unsigned-1 ] >>setter
409 "from_unsigned_1" >>boxer
411 \ uchar define-primitive-type
415 [ alien-unsigned-4 c-bool> ] >>getter
416 [ [ >c-bool ] 2dip set-alien-unsigned-4 ] >>setter
420 "from_boolean" >>boxer
421 "to_boolean" >>unboxer
424 [ alien-unsigned-1 c-bool> ] >>getter
425 [ [ >c-bool ] 2dip set-alien-unsigned-1 ] >>setter
429 "from_boolean" >>boxer
430 "to_boolean" >>unboxer
432 \ bool define-primitive-type
436 math:float >>boxed-class
437 [ alien-float ] >>getter
438 [ [ >float ] 2dip set-alien-float ] >>setter
445 [ >float ] >>unboxer-quot
446 \ float define-primitive-type
450 math:float >>boxed-class
451 [ alien-double ] >>getter
452 [ [ >float ] 2dip set-alien-double ] >>setter
455 "from_double" >>boxer
456 "to_double" >>unboxer
458 [ >float ] >>unboxer-quot
459 \ double define-primitive-type
464 integer >>boxed-class
465 [ alien-signed-cell ] >>getter
466 [ set-alien-signed-cell ] >>setter
467 bootstrap-cell >>size
468 bootstrap-cell >>align
469 bootstrap-cell >>align-first
470 "from_signed_cell" >>boxer
471 "to_fixnum" >>unboxer
472 \ longlong define-primitive-type
476 integer >>boxed-class
477 [ alien-unsigned-cell ] >>getter
478 [ set-alien-unsigned-cell ] >>setter
479 bootstrap-cell >>size
480 bootstrap-cell >>align
481 bootstrap-cell >>align-first
482 "from_unsigned_cell" >>boxer
484 \ ulonglong define-primitive-type
487 \ int c-type \ long define-primitive-type
488 \ uint c-type \ ulong define-primitive-type
490 \ longlong c-type \ long define-primitive-type
491 \ ulonglong c-type \ ulong define-primitive-type
494 \ longlong c-type \ ptrdiff_t typedef
495 \ longlong c-type \ intptr_t typedef
497 \ ulonglong c-type \ uintptr_t typedef
498 \ ulonglong c-type \ size_t typedef
502 integer >>boxed-class
503 [ alien-signed-8 ] >>getter
504 [ set-alien-signed-8 ] >>setter
507 "from_signed_8" >>boxer
508 "to_signed_8" >>unboxer
509 \ longlong define-primitive-type
513 integer >>boxed-class
514 [ alien-unsigned-8 ] >>getter
515 [ set-alien-unsigned-8 ] >>setter
518 "from_unsigned_8" >>boxer
519 "to_unsigned_8" >>unboxer
520 \ ulonglong define-primitive-type
522 \ int c-type \ long define-primitive-type
523 \ uint c-type \ ulong define-primitive-type
525 \ int c-type \ ptrdiff_t typedef
526 \ int c-type \ intptr_t typedef
528 \ uint c-type \ uintptr_t typedef
529 \ uint c-type \ size_t typedef
531 ] with-compilation-unit
533 M: char-16-rep rep-component-type drop char ;
534 M: uchar-16-rep rep-component-type drop uchar ;
535 M: short-8-rep rep-component-type drop short ;
536 M: ushort-8-rep rep-component-type drop ushort ;
537 M: int-4-rep rep-component-type drop int ;
538 M: uint-4-rep rep-component-type drop uint ;
539 M: longlong-2-rep rep-component-type drop longlong ;
540 M: ulonglong-2-rep rep-component-type drop ulonglong ;
541 M: float-4-rep rep-component-type drop float ;
542 M: double-2-rep rep-component-type drop double ;
544 : (unsigned-interval) ( bytes -- from to ) [ 0 ] dip 8 * 2^ 1 - ; foldable
545 : unsigned-interval ( c-type -- from to ) heap-size (unsigned-interval) ; foldable
546 : (signed-interval) ( bytes -- from to ) 8 * 1 - 2^ [ neg ] [ 1 - ] bi ; foldable
547 : signed-interval ( c-type -- from to ) heap-size (signed-interval) ; foldable
549 : c-type-interval ( c-type -- from to )
551 { [ dup { float double } member-eq? ] [ drop -1/0. 1/0. ] }
552 { [ dup { char short int long longlong } member-eq? ] [ signed-interval ] }
553 { [ dup { uchar ushort uint ulong ulonglong } member-eq? ] [ unsigned-interval ] }
556 : c-type-clamp ( value c-type -- value' )
557 dup { float double } member-eq?
558 [ drop ] [ c-type-interval clamp ] if ; inline