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 }
36 TUPLE: c-type < abstract-c-type
39 { rep initial: int-rep }
42 : <c-type> ( -- c-type )
48 c-types [ H{ } assoc-like ] change
51 ERROR: no-c-type name ;
53 PREDICATE: c-type-word < word
56 UNION: c-type-name string word ;
59 GENERIC: c-type ( name -- c-type ) foldable
61 GENERIC: resolve-pointer-type ( name -- c-type )
63 << \ void \ void* "pointer-c-type" set-word-prop >>
65 M: word resolve-pointer-type
66 dup "pointer-c-type" word-prop
67 [ ] [ drop void* ] ?if ;
69 M: string resolve-pointer-type
70 dup "*" append dup c-types get at
73 c-types get at dup c-type-name?
74 [ resolve-pointer-type ] [ drop void* ] if
77 : resolve-typedef ( name -- c-type )
78 dup c-type-name? [ c-type ] when ;
80 : parse-array-type ( name -- dims c-type )
82 [ [ "]" ?tail drop string>number ] map ] dip ;
84 M: string c-type ( name -- c-type )
85 CHAR: ] over member? [
86 parse-array-type prefix
88 dup c-types get at [ ] [
89 "*" ?tail [ resolve-pointer-type ] [ no-c-type ] if
94 "c-type" word-prop resolve-typedef ;
96 : void? ( c-type -- ? )
97 { void "void" } member? ;
99 GENERIC: c-struct? ( c-type -- ? )
103 M: c-type-name c-struct?
104 dup void? [ drop f ] [ c-type c-struct? ] if ;
106 ! These words being foldable means that words need to be
107 ! recompiled if a C type is redefined. Even so, folding the
108 ! size facilitates some optimizations.
109 GENERIC: c-type-class ( name -- class )
111 M: abstract-c-type c-type-class class>> ;
113 M: c-type-name c-type-class c-type c-type-class ;
115 GENERIC: c-type-boxed-class ( name -- class )
117 M: abstract-c-type c-type-boxed-class boxed-class>> ;
119 M: c-type-name c-type-boxed-class c-type c-type-boxed-class ;
121 GENERIC: c-type-boxer ( name -- boxer )
123 M: c-type c-type-boxer boxer>> ;
125 M: c-type-name c-type-boxer c-type c-type-boxer ;
127 GENERIC: c-type-boxer-quot ( name -- quot )
129 M: abstract-c-type c-type-boxer-quot boxer-quot>> ;
131 M: c-type-name c-type-boxer-quot c-type c-type-boxer-quot ;
133 GENERIC: c-type-unboxer ( name -- boxer )
135 M: c-type c-type-unboxer unboxer>> ;
137 M: c-type-name c-type-unboxer c-type c-type-unboxer ;
139 GENERIC: c-type-unboxer-quot ( name -- quot )
141 M: abstract-c-type c-type-unboxer-quot unboxer-quot>> ;
143 M: c-type-name c-type-unboxer-quot c-type c-type-unboxer-quot ;
145 GENERIC: c-type-rep ( name -- rep )
147 M: c-type c-type-rep rep>> ;
149 M: c-type-name c-type-rep c-type c-type-rep ;
151 GENERIC: c-type-getter ( name -- quot )
153 M: c-type c-type-getter getter>> ;
155 M: c-type-name c-type-getter c-type c-type-getter ;
157 GENERIC: c-type-setter ( name -- quot )
159 M: c-type c-type-setter setter>> ;
161 M: c-type-name c-type-setter c-type c-type-setter ;
163 GENERIC: c-type-align ( name -- n )
165 M: abstract-c-type c-type-align align>> ;
167 M: c-type-name c-type-align c-type c-type-align ;
169 GENERIC: c-type-stack-align? ( name -- ? )
171 M: c-type c-type-stack-align? stack-align?>> ;
173 M: c-type-name c-type-stack-align? c-type c-type-stack-align? ;
175 : c-type-box ( n c-type -- )
176 [ c-type-rep ] [ c-type-boxer [ "No boxer" throw ] unless* ] bi
179 : c-type-unbox ( n c-type -- )
180 [ c-type-rep ] [ c-type-unboxer [ "No unboxer" throw ] unless* ] bi
183 GENERIC: box-parameter ( n c-type -- )
185 M: c-type box-parameter c-type-box ;
187 M: c-type-name box-parameter c-type box-parameter ;
189 GENERIC: box-return ( c-type -- )
191 M: c-type box-return f swap c-type-box ;
193 M: c-type-name box-return c-type box-return ;
195 GENERIC: unbox-parameter ( n c-type -- )
197 M: c-type unbox-parameter c-type-unbox ;
199 M: c-type-name unbox-parameter c-type unbox-parameter ;
201 GENERIC: unbox-return ( c-type -- )
203 M: c-type unbox-return f swap c-type-unbox ;
205 M: c-type-name unbox-return c-type unbox-return ;
207 : little-endian? ( -- ? ) 1 <int> *char 1 = ; foldable
209 GENERIC: heap-size ( name -- size ) foldable
211 M: c-type-name heap-size c-type heap-size ;
213 M: abstract-c-type heap-size size>> ;
215 GENERIC: stack-size ( name -- size ) foldable
217 M: c-type-name stack-size c-type stack-size ;
219 M: c-type stack-size size>> cell align ;
221 GENERIC: byte-length ( seq -- n ) flushable
223 M: byte-array byte-length length ; inline
225 M: f byte-length drop 0 ; inline
229 : c-getter ( name -- quot )
231 [ "Cannot read struct fields with this type" throw ]
234 : c-type-getter-boxer ( name -- quot )
235 [ c-getter ] [ c-type-boxer-quot ] bi append ;
237 : c-setter ( name -- quot )
239 [ "Cannot write struct fields with this type" throw ]
242 : array-accessor ( c-type quot -- def )
244 \ swap , [ heap-size , [ * >fixnum ] % ] [ % ] bi*
247 GENERIC: typedef ( old new -- )
249 PREDICATE: typedef-word < c-type-word
250 "c-type" word-prop c-type-name? ;
252 M: string typedef ( old new -- ) c-types get set-at ;
253 M: word typedef ( old new -- )
255 [ nip define-symbol ]
257 [ swap "c-type" set-word-prop ]
259 swap dup c-type-name? [
261 "pointer-c-type" set-word-prop
266 TUPLE: long-long-type < c-type ;
268 : <long-long-type> ( -- c-type )
271 M: long-long-type unbox-parameter ( n c-type -- )
272 c-type-unboxer %unbox-long-long ;
274 M: long-long-type unbox-return ( c-type -- )
275 f swap unbox-parameter ;
277 M: long-long-type box-parameter ( n c-type -- )
278 c-type-boxer %box-long-long ;
280 M: long-long-type box-return ( c-type -- )
281 f swap box-parameter ;
283 : define-deref ( name -- )
284 [ CHAR: * prefix "alien.c-types" create ] [ c-getter 0 prefix ] bi
285 (( c-ptr -- value )) define-inline ;
287 : define-out ( name -- )
288 [ "alien.c-types" constructor-word ]
289 [ dup c-setter '[ _ heap-size <byte-array> [ 0 @ ] keep ] ] bi
290 (( value -- c-ptr )) define-inline ;
292 : define-primitive-type ( c-type name -- )
294 [ name>> define-deref ]
295 [ name>> define-out ]
298 : if-void ( c-type true false -- )
299 pick void? [ drop nip call ] [ nip call ] if ; inline
301 CONSTANT: primitive-types
313 ptrdiff_t intptr_t size_t
320 [ alien-cell ] >>getter
321 [ [ >c-ptr ] 2dip set-alien-cell ] >>setter
322 bootstrap-cell >>size
323 bootstrap-cell >>align
324 [ >c-ptr ] >>unboxer-quot
326 "alien_offset" >>unboxer
327 \ void* define-primitive-type
331 integer >>boxed-class
332 [ alien-signed-8 ] >>getter
333 [ set-alien-signed-8 ] >>setter
336 "box_signed_8" >>boxer
337 "to_signed_8" >>unboxer
338 \ longlong define-primitive-type
342 integer >>boxed-class
343 [ alien-unsigned-8 ] >>getter
344 [ set-alien-unsigned-8 ] >>setter
347 "box_unsigned_8" >>boxer
348 "to_unsigned_8" >>unboxer
349 \ ulonglong define-primitive-type
353 integer >>boxed-class
354 [ alien-signed-cell ] >>getter
355 [ set-alien-signed-cell ] >>setter
356 bootstrap-cell >>size
357 bootstrap-cell >>align
358 "box_signed_cell" >>boxer
359 "to_fixnum" >>unboxer
360 \ long define-primitive-type
364 integer >>boxed-class
365 [ alien-unsigned-cell ] >>getter
366 [ set-alien-unsigned-cell ] >>setter
367 bootstrap-cell >>size
368 bootstrap-cell >>align
369 "box_unsigned_cell" >>boxer
371 \ ulong define-primitive-type
375 integer >>boxed-class
376 [ alien-signed-4 ] >>getter
377 [ set-alien-signed-4 ] >>setter
380 "box_signed_4" >>boxer
381 "to_fixnum" >>unboxer
382 \ int define-primitive-type
386 integer >>boxed-class
387 [ alien-unsigned-4 ] >>getter
388 [ set-alien-unsigned-4 ] >>setter
391 "box_unsigned_4" >>boxer
393 \ uint define-primitive-type
398 [ alien-signed-2 ] >>getter
399 [ set-alien-signed-2 ] >>setter
402 "box_signed_2" >>boxer
403 "to_fixnum" >>unboxer
404 \ short define-primitive-type
409 [ alien-unsigned-2 ] >>getter
410 [ set-alien-unsigned-2 ] >>setter
413 "box_unsigned_2" >>boxer
415 \ ushort define-primitive-type
420 [ alien-signed-1 ] >>getter
421 [ set-alien-signed-1 ] >>setter
424 "box_signed_1" >>boxer
425 "to_fixnum" >>unboxer
426 \ char define-primitive-type
431 [ alien-unsigned-1 ] >>getter
432 [ set-alien-unsigned-1 ] >>setter
435 "box_unsigned_1" >>boxer
437 \ uchar define-primitive-type
440 [ alien-unsigned-1 0 = not ] >>getter
441 [ [ 1 0 ? ] 2dip set-alien-unsigned-1 ] >>setter
444 "box_boolean" >>boxer
445 "to_boolean" >>unboxer
446 \ bool define-primitive-type
450 math:float >>boxed-class
451 [ alien-float ] >>getter
452 [ [ >float ] 2dip set-alien-float ] >>setter
458 [ >float ] >>unboxer-quot
459 \ float define-primitive-type
463 math:float >>boxed-class
464 [ alien-double ] >>getter
465 [ [ >float ] 2dip set-alien-double ] >>setter
469 "to_double" >>unboxer
471 [ >float ] >>unboxer-quot
472 \ double define-primitive-type
474 \ long \ ptrdiff_t typedef
475 \ long \ intptr_t typedef
476 \ ulong \ size_t typedef
477 ] with-compilation-unit
479 M: char-16-rep rep-component-type drop char ;
480 M: uchar-16-rep rep-component-type drop uchar ;
481 M: short-8-rep rep-component-type drop short ;
482 M: ushort-8-rep rep-component-type drop ushort ;
483 M: int-4-rep rep-component-type drop int ;
484 M: uint-4-rep rep-component-type drop uint ;
485 M: longlong-2-rep rep-component-type drop longlong ;
486 M: ulonglong-2-rep rep-component-type drop ulonglong ;
487 M: float-4-rep rep-component-type drop float ;
488 M: double-2-rep rep-component-type drop double ;
490 : (unsigned-interval) ( bytes -- from to ) [ 0 ] dip 8 * 2^ 1 - ; foldable
491 : unsigned-interval ( c-type -- from to ) heap-size (unsigned-interval) ; foldable
492 : (signed-interval) ( bytes -- from to ) 8 * 1 - 2^ [ neg ] [ 1 - ] bi ; foldable
493 : signed-interval ( c-type -- from to ) heap-size (signed-interval) ; foldable
495 : c-type-interval ( c-type -- from to )
497 { [ dup { float double } memq? ] [ drop -1/0. 1/0. ] }
498 { [ dup { char short int long longlong } memq? ] [ signed-interval ] }
499 { [ dup { uchar ushort uint ulong ulonglong } memq? ] [ unsigned-interval ] }
502 : c-type-clamp ( value c-type -- value' ) c-type-interval clamp ; inline