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 c-type-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 : void? ( c-type -- ? )
66 { void "void" } member? ;
68 M: word resolve-pointer-type
69 dup "pointer-c-type" word-prop
70 [ ] [ drop void* ] ?if ;
72 M: string resolve-pointer-type
73 dup "*" append dup c-types get at
76 c-types get at dup c-type-name?
77 [ resolve-pointer-type ] [ drop void* ] if
80 : resolve-typedef ( name -- c-type )
81 dup void? [ no-c-type ] when
82 dup c-type-name? [ c-type ] when ;
84 : parse-array-type ( name -- dims c-type )
86 [ [ "]" ?tail drop string>number ] map ] dip ;
88 M: string c-type ( name -- c-type )
89 CHAR: ] over member? [
90 parse-array-type prefix
92 dup c-types get at [ ] [
93 "*" ?tail [ resolve-pointer-type ] [ no-c-type ] if
98 dup "c-type" word-prop resolve-typedef
99 [ ] [ no-c-type ] ?if ;
101 GENERIC: c-struct? ( c-type -- ? )
105 M: c-type-name c-struct?
106 dup void? [ drop f ] [ c-type c-struct? ] if ;
108 ! These words being foldable means that words need to be
109 ! recompiled if a C type is redefined. Even so, folding the
110 ! size facilitates some optimizations.
111 GENERIC: c-type-class ( name -- class )
113 M: abstract-c-type c-type-class class>> ;
115 M: c-type-name c-type-class c-type c-type-class ;
117 GENERIC: c-type-boxed-class ( name -- class )
119 M: abstract-c-type c-type-boxed-class boxed-class>> ;
121 M: c-type-name c-type-boxed-class c-type c-type-boxed-class ;
123 GENERIC: c-type-boxer ( name -- boxer )
125 M: c-type c-type-boxer boxer>> ;
127 M: c-type-name c-type-boxer c-type c-type-boxer ;
129 GENERIC: c-type-boxer-quot ( name -- quot )
131 M: abstract-c-type c-type-boxer-quot boxer-quot>> ;
133 M: c-type-name c-type-boxer-quot c-type c-type-boxer-quot ;
135 GENERIC: c-type-unboxer ( name -- boxer )
137 M: c-type c-type-unboxer unboxer>> ;
139 M: c-type-name c-type-unboxer c-type c-type-unboxer ;
141 GENERIC: c-type-unboxer-quot ( name -- quot )
143 M: abstract-c-type c-type-unboxer-quot unboxer-quot>> ;
145 M: c-type-name c-type-unboxer-quot c-type c-type-unboxer-quot ;
147 GENERIC: c-type-rep ( name -- rep )
149 M: c-type c-type-rep rep>> ;
151 M: c-type-name c-type-rep c-type c-type-rep ;
153 GENERIC: c-type-getter ( name -- quot )
155 M: c-type c-type-getter getter>> ;
157 M: c-type-name c-type-getter c-type c-type-getter ;
159 GENERIC: c-type-setter ( name -- quot )
161 M: c-type c-type-setter setter>> ;
163 M: c-type-name c-type-setter c-type c-type-setter ;
165 GENERIC: c-type-align ( name -- n )
167 M: abstract-c-type c-type-align align>> ;
169 M: c-type-name c-type-align c-type c-type-align ;
171 GENERIC: c-type-stack-align? ( name -- ? )
173 M: c-type c-type-stack-align? stack-align?>> ;
175 M: c-type-name c-type-stack-align? c-type c-type-stack-align? ;
177 : c-type-box ( n c-type -- )
178 [ c-type-rep ] [ c-type-boxer [ "No boxer" throw ] unless* ] bi
181 : c-type-unbox ( n c-type -- )
182 [ c-type-rep ] [ c-type-unboxer [ "No unboxer" throw ] unless* ] bi
185 GENERIC: box-parameter ( n c-type -- )
187 M: c-type box-parameter c-type-box ;
189 M: c-type-name box-parameter c-type box-parameter ;
191 GENERIC: box-return ( c-type -- )
193 M: c-type box-return f swap c-type-box ;
195 M: c-type-name box-return c-type box-return ;
197 GENERIC: unbox-parameter ( n c-type -- )
199 M: c-type unbox-parameter c-type-unbox ;
201 M: c-type-name unbox-parameter c-type unbox-parameter ;
203 GENERIC: unbox-return ( c-type -- )
205 M: c-type unbox-return f swap c-type-unbox ;
207 M: c-type-name unbox-return c-type unbox-return ;
209 : little-endian? ( -- ? ) 1 <int> *char 1 = ; foldable
211 GENERIC: heap-size ( name -- size ) foldable
213 M: c-type-name heap-size c-type heap-size ;
215 M: abstract-c-type heap-size size>> ;
217 GENERIC: stack-size ( name -- size ) foldable
219 M: c-type-name stack-size c-type stack-size ;
221 M: c-type stack-size size>> cell align ;
223 GENERIC: byte-length ( seq -- n ) flushable
225 M: byte-array byte-length length ; inline
227 M: f byte-length drop 0 ; inline
231 : c-getter ( name -- quot )
233 [ "Cannot read struct fields with this type" throw ]
236 : c-type-getter-boxer ( name -- quot )
237 [ c-getter ] [ c-type-boxer-quot ] bi append ;
239 : c-setter ( name -- quot )
241 [ "Cannot write struct fields with this type" throw ]
244 : array-accessor ( c-type quot -- def )
246 \ swap , [ heap-size , [ * >fixnum ] % ] [ % ] bi*
249 GENERIC: typedef ( old new -- )
251 PREDICATE: typedef-word < c-type-word
252 "c-type" word-prop c-type-name? ;
254 M: string typedef ( old new -- ) c-types get set-at ;
255 M: word typedef ( old new -- )
257 [ nip define-symbol ]
259 [ swap "c-type" set-word-prop ]
261 swap dup c-type-name? [
263 "pointer-c-type" set-word-prop
268 TUPLE: long-long-type < c-type ;
270 : <long-long-type> ( -- c-type )
273 M: long-long-type unbox-parameter ( n c-type -- )
274 c-type-unboxer %unbox-long-long ;
276 M: long-long-type unbox-return ( c-type -- )
277 f swap unbox-parameter ;
279 M: long-long-type box-parameter ( n c-type -- )
280 c-type-boxer %box-long-long ;
282 M: long-long-type box-return ( c-type -- )
283 f swap box-parameter ;
285 : define-deref ( name -- )
286 [ CHAR: * prefix "alien.c-types" create ] [ c-getter 0 prefix ] bi
287 (( c-ptr -- value )) define-inline ;
289 : define-out ( name -- )
290 [ "alien.c-types" constructor-word ]
291 [ dup c-setter '[ _ heap-size <byte-array> [ 0 @ ] keep ] ] bi
292 (( value -- c-ptr )) define-inline ;
294 : define-primitive-type ( c-type name -- )
296 [ name>> define-deref ]
297 [ name>> define-out ]
300 : if-void ( c-type true false -- )
301 pick void? [ drop nip call ] [ nip call ] if ; inline
303 CONSTANT: primitive-types
315 ptrdiff_t intptr_t uintptr_t size_t
322 [ alien-cell ] >>getter
323 [ [ >c-ptr ] 2dip set-alien-cell ] >>setter
324 bootstrap-cell >>size
325 bootstrap-cell >>align
326 [ >c-ptr ] >>unboxer-quot
328 "alien_offset" >>unboxer
329 \ void* define-primitive-type
333 integer >>boxed-class
334 [ alien-signed-8 ] >>getter
335 [ set-alien-signed-8 ] >>setter
338 "box_signed_8" >>boxer
339 "to_signed_8" >>unboxer
340 \ longlong define-primitive-type
344 integer >>boxed-class
345 [ alien-unsigned-8 ] >>getter
346 [ set-alien-unsigned-8 ] >>setter
349 "box_unsigned_8" >>boxer
350 "to_unsigned_8" >>unboxer
351 \ ulonglong define-primitive-type
355 integer >>boxed-class
356 [ alien-signed-cell ] >>getter
357 [ set-alien-signed-cell ] >>setter
358 bootstrap-cell >>size
359 bootstrap-cell >>align
360 "box_signed_cell" >>boxer
361 "to_fixnum" >>unboxer
362 \ long define-primitive-type
366 integer >>boxed-class
367 [ alien-unsigned-cell ] >>getter
368 [ set-alien-unsigned-cell ] >>setter
369 bootstrap-cell >>size
370 bootstrap-cell >>align
371 "box_unsigned_cell" >>boxer
373 \ ulong define-primitive-type
377 integer >>boxed-class
378 [ alien-signed-4 ] >>getter
379 [ set-alien-signed-4 ] >>setter
382 "box_signed_4" >>boxer
383 "to_fixnum" >>unboxer
384 \ int define-primitive-type
388 integer >>boxed-class
389 [ alien-unsigned-4 ] >>getter
390 [ set-alien-unsigned-4 ] >>setter
393 "box_unsigned_4" >>boxer
395 \ uint define-primitive-type
400 [ alien-signed-2 ] >>getter
401 [ set-alien-signed-2 ] >>setter
404 "box_signed_2" >>boxer
405 "to_fixnum" >>unboxer
406 \ short define-primitive-type
411 [ alien-unsigned-2 ] >>getter
412 [ set-alien-unsigned-2 ] >>setter
415 "box_unsigned_2" >>boxer
417 \ ushort define-primitive-type
422 [ alien-signed-1 ] >>getter
423 [ set-alien-signed-1 ] >>setter
426 "box_signed_1" >>boxer
427 "to_fixnum" >>unboxer
428 \ char define-primitive-type
433 [ alien-unsigned-1 ] >>getter
434 [ set-alien-unsigned-1 ] >>setter
437 "box_unsigned_1" >>boxer
439 \ uchar define-primitive-type
442 [ alien-unsigned-1 0 = not ] >>getter
443 [ [ 1 0 ? ] 2dip set-alien-unsigned-1 ] >>setter
446 "box_boolean" >>boxer
447 "to_boolean" >>unboxer
448 \ bool define-primitive-type
452 math:float >>boxed-class
453 [ alien-float ] >>getter
454 [ [ >float ] 2dip set-alien-float ] >>setter
460 [ >float ] >>unboxer-quot
461 \ float define-primitive-type
465 math:float >>boxed-class
466 [ alien-double ] >>getter
467 [ [ >float ] 2dip set-alien-double ] >>setter
471 "to_double" >>unboxer
473 [ >float ] >>unboxer-quot
474 \ double define-primitive-type
476 \ long c-type \ ptrdiff_t typedef
477 \ long c-type \ intptr_t typedef
478 \ ulong c-type \ uintptr_t typedef
479 \ ulong c-type \ size_t typedef
480 ] with-compilation-unit
482 M: char-16-rep rep-component-type drop char ;
483 M: uchar-16-rep rep-component-type drop uchar ;
484 M: short-8-rep rep-component-type drop short ;
485 M: ushort-8-rep rep-component-type drop ushort ;
486 M: int-4-rep rep-component-type drop int ;
487 M: uint-4-rep rep-component-type drop uint ;
488 M: longlong-2-rep rep-component-type drop longlong ;
489 M: ulonglong-2-rep rep-component-type drop ulonglong ;
490 M: float-4-rep rep-component-type drop float ;
491 M: double-2-rep rep-component-type drop double ;
493 : (unsigned-interval) ( bytes -- from to ) [ 0 ] dip 8 * 2^ 1 - ; foldable
494 : unsigned-interval ( c-type -- from to ) heap-size (unsigned-interval) ; foldable
495 : (signed-interval) ( bytes -- from to ) 8 * 1 - 2^ [ neg ] [ 1 - ] bi ; foldable
496 : signed-interval ( c-type -- from to ) heap-size (signed-interval) ; foldable
498 : c-type-interval ( c-type -- from to )
500 { [ dup { float double } memq? ] [ drop -1/0. 1/0. ] }
501 { [ dup { char short int long longlong } memq? ] [ signed-interval ] }
502 { [ dup { uchar ushort uint ulong ulonglong } memq? ] [ unsigned-interval ] }
505 : c-type-clamp ( value c-type -- value' ) c-type-interval clamp ; inline