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 M: word resolve-pointer-type
64 dup "pointer-c-type" word-prop
65 [ ] [ drop void* ] ?if ;
67 M: string resolve-pointer-type
68 dup "*" append dup c-types get at
71 c-types get at dup c-type-name?
72 [ resolve-pointer-type ] [ drop void* ] if
75 : resolve-typedef ( name -- c-type )
76 dup c-type-name? [ c-type ] when ;
78 : parse-array-type ( name -- dims c-type )
80 [ [ "]" ?tail drop string>number ] map ] dip ;
82 M: string c-type ( name -- c-type )
83 CHAR: ] over member? [
84 parse-array-type prefix
86 dup c-types get at [ ] [
87 "*" ?tail [ resolve-pointer-type ] [ no-c-type ] if
92 "c-type" word-prop resolve-typedef ;
94 : void? ( c-type -- ? )
95 { void "void" } member? ;
97 GENERIC: c-struct? ( c-type -- ? )
101 M: c-type-name c-struct?
102 dup void? [ drop f ] [ c-type c-struct? ] if ;
104 ! These words being foldable means that words need to be
105 ! recompiled if a C type is redefined. Even so, folding the
106 ! size facilitates some optimizations.
107 GENERIC: c-type-class ( name -- class )
109 M: abstract-c-type c-type-class class>> ;
111 M: c-type-name c-type-class c-type c-type-class ;
113 GENERIC: c-type-boxed-class ( name -- class )
115 M: abstract-c-type c-type-boxed-class boxed-class>> ;
117 M: c-type-name c-type-boxed-class c-type c-type-boxed-class ;
119 GENERIC: c-type-boxer ( name -- boxer )
121 M: c-type c-type-boxer boxer>> ;
123 M: c-type-name c-type-boxer c-type c-type-boxer ;
125 GENERIC: c-type-boxer-quot ( name -- quot )
127 M: abstract-c-type c-type-boxer-quot boxer-quot>> ;
129 M: c-type-name c-type-boxer-quot c-type c-type-boxer-quot ;
131 GENERIC: c-type-unboxer ( name -- boxer )
133 M: c-type c-type-unboxer unboxer>> ;
135 M: c-type-name c-type-unboxer c-type c-type-unboxer ;
137 GENERIC: c-type-unboxer-quot ( name -- quot )
139 M: abstract-c-type c-type-unboxer-quot unboxer-quot>> ;
141 M: c-type-name c-type-unboxer-quot c-type c-type-unboxer-quot ;
143 GENERIC: c-type-rep ( name -- rep )
145 M: c-type c-type-rep rep>> ;
147 M: c-type-name c-type-rep c-type c-type-rep ;
149 GENERIC: c-type-getter ( name -- quot )
151 M: c-type c-type-getter getter>> ;
153 M: c-type-name c-type-getter c-type c-type-getter ;
155 GENERIC: c-type-setter ( name -- quot )
157 M: c-type c-type-setter setter>> ;
159 M: c-type-name c-type-setter c-type c-type-setter ;
161 GENERIC: c-type-align ( name -- n )
163 M: abstract-c-type c-type-align align>> ;
165 M: c-type-name c-type-align c-type c-type-align ;
167 GENERIC: c-type-stack-align? ( name -- ? )
169 M: c-type c-type-stack-align? stack-align?>> ;
171 M: c-type-name c-type-stack-align? c-type c-type-stack-align? ;
173 : c-type-box ( n c-type -- )
174 [ c-type-rep ] [ c-type-boxer [ "No boxer" throw ] unless* ] bi
177 : c-type-unbox ( n c-type -- )
178 [ c-type-rep ] [ c-type-unboxer [ "No unboxer" throw ] unless* ] bi
181 GENERIC: box-parameter ( n c-type -- )
183 M: c-type box-parameter c-type-box ;
185 M: c-type-name box-parameter c-type box-parameter ;
187 GENERIC: box-return ( c-type -- )
189 M: c-type box-return f swap c-type-box ;
191 M: c-type-name box-return c-type box-return ;
193 GENERIC: unbox-parameter ( n c-type -- )
195 M: c-type unbox-parameter c-type-unbox ;
197 M: c-type-name unbox-parameter c-type unbox-parameter ;
199 GENERIC: unbox-return ( c-type -- )
201 M: c-type unbox-return f swap c-type-unbox ;
203 M: c-type-name unbox-return c-type unbox-return ;
205 : little-endian? ( -- ? ) 1 <int> *char 1 = ; foldable
207 GENERIC: heap-size ( name -- size ) foldable
209 M: c-type-name heap-size c-type heap-size ;
211 M: abstract-c-type heap-size size>> ;
213 GENERIC: stack-size ( name -- size ) foldable
215 M: c-type-name stack-size c-type stack-size ;
217 M: c-type stack-size size>> cell align ;
219 GENERIC: byte-length ( seq -- n ) flushable
221 M: byte-array byte-length length ; inline
223 M: f byte-length drop 0 ; inline
227 : c-getter ( name -- quot )
229 [ "Cannot read struct fields with this type" throw ]
232 : c-type-getter-boxer ( name -- quot )
233 [ c-getter ] [ c-type-boxer-quot ] bi append ;
235 : c-setter ( name -- quot )
237 [ "Cannot write struct fields with this type" throw ]
240 : array-accessor ( c-type quot -- def )
242 \ swap , [ heap-size , [ * >fixnum ] % ] [ % ] bi*
245 GENERIC: typedef ( old new -- )
247 PREDICATE: typedef-word < c-type-word
248 "c-type" word-prop c-type-name? ;
250 M: string typedef ( old new -- ) c-types get set-at ;
251 M: word typedef ( old new -- )
253 [ nip define-symbol ]
255 [ swap "c-type" set-word-prop ]
257 swap dup c-type-name? [
259 "pointer-c-type" set-word-prop
264 TUPLE: long-long-type < c-type ;
266 : <long-long-type> ( -- c-type )
269 M: long-long-type unbox-parameter ( n c-type -- )
270 c-type-unboxer %unbox-long-long ;
272 M: long-long-type unbox-return ( c-type -- )
273 f swap unbox-parameter ;
275 M: long-long-type box-parameter ( n c-type -- )
276 c-type-boxer %box-long-long ;
278 M: long-long-type box-return ( c-type -- )
279 f swap box-parameter ;
281 : define-deref ( name -- )
282 [ CHAR: * prefix "alien.c-types" create ] [ c-getter 0 prefix ] bi
283 (( c-ptr -- value )) define-inline ;
285 : define-out ( name -- )
286 [ "alien.c-types" constructor-word ]
287 [ dup c-setter '[ _ heap-size <byte-array> [ 0 @ ] keep ] ] bi
288 (( value -- c-ptr )) define-inline ;
290 : define-primitive-type ( c-type name -- )
292 [ name>> define-deref ]
293 [ name>> define-out ]
296 : if-void ( c-type true false -- )
297 pick void? [ drop nip call ] [ nip call ] if ; inline
299 CONSTANT: primitive-types
311 ptrdiff_t intptr_t size_t
318 [ alien-cell ] >>getter
319 [ [ >c-ptr ] 2dip set-alien-cell ] >>setter
320 bootstrap-cell >>size
321 bootstrap-cell >>align
322 [ >c-ptr ] >>unboxer-quot
324 "alien_offset" >>unboxer
325 \ void* define-primitive-type
329 integer >>boxed-class
330 [ alien-signed-8 ] >>getter
331 [ set-alien-signed-8 ] >>setter
334 "box_signed_8" >>boxer
335 "to_signed_8" >>unboxer
336 \ longlong define-primitive-type
340 integer >>boxed-class
341 [ alien-unsigned-8 ] >>getter
342 [ set-alien-unsigned-8 ] >>setter
345 "box_unsigned_8" >>boxer
346 "to_unsigned_8" >>unboxer
347 \ ulonglong define-primitive-type
351 integer >>boxed-class
352 [ alien-signed-cell ] >>getter
353 [ set-alien-signed-cell ] >>setter
354 bootstrap-cell >>size
355 bootstrap-cell >>align
356 "box_signed_cell" >>boxer
357 "to_fixnum" >>unboxer
358 \ long define-primitive-type
362 integer >>boxed-class
363 [ alien-unsigned-cell ] >>getter
364 [ set-alien-unsigned-cell ] >>setter
365 bootstrap-cell >>size
366 bootstrap-cell >>align
367 "box_unsigned_cell" >>boxer
369 \ ulong define-primitive-type
373 integer >>boxed-class
374 [ alien-signed-4 ] >>getter
375 [ set-alien-signed-4 ] >>setter
378 "box_signed_4" >>boxer
379 "to_fixnum" >>unboxer
380 \ int define-primitive-type
384 integer >>boxed-class
385 [ alien-unsigned-4 ] >>getter
386 [ set-alien-unsigned-4 ] >>setter
389 "box_unsigned_4" >>boxer
391 \ uint define-primitive-type
396 [ alien-signed-2 ] >>getter
397 [ set-alien-signed-2 ] >>setter
400 "box_signed_2" >>boxer
401 "to_fixnum" >>unboxer
402 \ short define-primitive-type
407 [ alien-unsigned-2 ] >>getter
408 [ set-alien-unsigned-2 ] >>setter
411 "box_unsigned_2" >>boxer
413 \ ushort define-primitive-type
418 [ alien-signed-1 ] >>getter
419 [ set-alien-signed-1 ] >>setter
422 "box_signed_1" >>boxer
423 "to_fixnum" >>unboxer
424 \ char define-primitive-type
429 [ alien-unsigned-1 ] >>getter
430 [ set-alien-unsigned-1 ] >>setter
433 "box_unsigned_1" >>boxer
435 \ uchar define-primitive-type
438 [ alien-unsigned-1 0 = not ] >>getter
439 [ [ 1 0 ? ] 2dip set-alien-unsigned-1 ] >>setter
442 "box_boolean" >>boxer
443 "to_boolean" >>unboxer
444 \ bool define-primitive-type
448 math:float >>boxed-class
449 [ alien-float ] >>getter
450 [ [ >float ] 2dip set-alien-float ] >>setter
456 [ >float ] >>unboxer-quot
457 \ float define-primitive-type
461 math:float >>boxed-class
462 [ alien-double ] >>getter
463 [ [ >float ] 2dip set-alien-double ] >>setter
467 "to_double" >>unboxer
469 [ >float ] >>unboxer-quot
470 \ double define-primitive-type
472 \ long \ ptrdiff_t typedef
473 \ long \ intptr_t typedef
474 \ ulong \ size_t typedef
475 ] with-compilation-unit
477 M: char-16-rep rep-component-type drop char ;
478 M: uchar-16-rep rep-component-type drop uchar ;
479 M: short-8-rep rep-component-type drop short ;
480 M: ushort-8-rep rep-component-type drop ushort ;
481 M: int-4-rep rep-component-type drop int ;
482 M: uint-4-rep rep-component-type drop uint ;
483 M: longlong-2-rep rep-component-type drop longlong ;
484 M: ulonglong-2-rep rep-component-type drop ulonglong ;
485 M: float-4-rep rep-component-type drop float ;
486 M: double-2-rep rep-component-type drop double ;
488 : (unsigned-interval) ( bytes -- from to ) [ 0 ] dip 8 * 2^ 1 - ; foldable
489 : unsigned-interval ( c-type -- from to ) heap-size (unsigned-interval) ; foldable
490 : (signed-interval) ( bytes -- from to ) 8 * 1 - 2^ [ neg ] [ 1 - ] bi ; foldable
491 : signed-interval ( c-type -- from to ) heap-size (signed-interval) ; foldable
493 : c-type-interval ( c-type -- from to )
495 { [ dup { float double } memq? ] [ drop -1/0. 1/0. ] }
496 { [ dup { char short int long longlong } memq? ] [ signed-interval ] }
497 { [ dup { uchar ushort uint ulong ulonglong } memq? ] [ unsigned-interval ] }
500 : c-type-clamp ( value c-type -- value' ) c-type-interval clamp ; inline