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> ( -- 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 -- 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 ;
68 M: string resolve-pointer-type
69 dup "*" append dup c-types get at
72 c-types get at dup c-type-name?
73 [ resolve-pointer-type ] [ drop void* ] if
76 : resolve-typedef ( name -- type )
77 dup c-type-name? [ c-type ] when ;
79 : parse-array-type ( name -- dims type )
81 [ [ "]" ?tail drop string>number ] map ] dip ;
83 M: string c-type ( name -- type )
84 CHAR: ] over member? [
85 parse-array-type prefix
87 dup c-types get at [ ] [
88 "*" ?tail [ resolve-pointer-type ] [ no-c-type ] if
93 "c-type" word-prop resolve-typedef ;
95 : void? ( c-type -- ? )
96 { void "void" } member? ;
98 GENERIC: c-struct? ( type -- ? )
102 M: c-type-name c-struct?
103 dup void? [ drop f ] [ c-type c-struct? ] if ;
105 ! These words being foldable means that words need to be
106 ! recompiled if a C type is redefined. Even so, folding the
107 ! size facilitates some optimizations.
108 GENERIC: c-type-class ( name -- class )
110 M: abstract-c-type c-type-class class>> ;
112 M: c-type-name c-type-class c-type c-type-class ;
114 GENERIC: c-type-boxed-class ( name -- class )
116 M: abstract-c-type c-type-boxed-class boxed-class>> ;
118 M: c-type-name c-type-boxed-class c-type c-type-boxed-class ;
120 GENERIC: c-type-boxer ( name -- boxer )
122 M: c-type c-type-boxer boxer>> ;
124 M: c-type-name c-type-boxer c-type c-type-boxer ;
126 GENERIC: c-type-boxer-quot ( name -- quot )
128 M: abstract-c-type c-type-boxer-quot boxer-quot>> ;
130 M: c-type-name c-type-boxer-quot c-type c-type-boxer-quot ;
132 GENERIC: c-type-unboxer ( name -- boxer )
134 M: c-type c-type-unboxer unboxer>> ;
136 M: c-type-name c-type-unboxer c-type c-type-unboxer ;
138 GENERIC: c-type-unboxer-quot ( name -- quot )
140 M: abstract-c-type c-type-unboxer-quot unboxer-quot>> ;
142 M: c-type-name c-type-unboxer-quot c-type c-type-unboxer-quot ;
144 GENERIC: c-type-rep ( name -- rep )
146 M: c-type c-type-rep rep>> ;
148 M: c-type-name c-type-rep c-type c-type-rep ;
150 GENERIC: c-type-getter ( name -- quot )
152 M: c-type c-type-getter getter>> ;
154 M: c-type-name c-type-getter c-type c-type-getter ;
156 GENERIC: c-type-setter ( name -- quot )
158 M: c-type c-type-setter setter>> ;
160 M: c-type-name c-type-setter c-type c-type-setter ;
162 GENERIC: c-type-align ( name -- n )
164 M: abstract-c-type c-type-align align>> ;
166 M: c-type-name c-type-align c-type c-type-align ;
168 GENERIC: c-type-stack-align? ( name -- ? )
170 M: c-type c-type-stack-align? stack-align?>> ;
172 M: c-type-name c-type-stack-align? c-type c-type-stack-align? ;
174 : c-type-box ( n type -- )
175 [ c-type-rep ] [ c-type-boxer [ "No boxer" throw ] unless* ] bi
178 : c-type-unbox ( n ctype -- )
179 [ c-type-rep ] [ c-type-unboxer [ "No unboxer" throw ] unless* ] bi
182 GENERIC: box-parameter ( n ctype -- )
184 M: c-type box-parameter c-type-box ;
186 M: c-type-name box-parameter c-type box-parameter ;
188 GENERIC: box-return ( ctype -- )
190 M: c-type box-return f swap c-type-box ;
192 M: c-type-name box-return c-type box-return ;
194 GENERIC: unbox-parameter ( n ctype -- )
196 M: c-type unbox-parameter c-type-unbox ;
198 M: c-type-name unbox-parameter c-type unbox-parameter ;
200 GENERIC: unbox-return ( ctype -- )
202 M: c-type unbox-return f swap c-type-unbox ;
204 M: c-type-name unbox-return c-type unbox-return ;
206 : little-endian? ( -- ? ) 1 <int> *char 1 = ; foldable
208 GENERIC: heap-size ( type -- size ) foldable
210 M: c-type-name heap-size c-type heap-size ;
212 M: abstract-c-type heap-size size>> ;
214 GENERIC: stack-size ( type -- size ) foldable
216 M: c-type-name stack-size c-type stack-size ;
218 M: c-type stack-size size>> cell align ;
220 GENERIC: byte-length ( seq -- n ) flushable
222 M: byte-array byte-length length ; inline
224 M: f byte-length drop 0 ; inline
228 : c-getter ( name -- quot )
230 [ "Cannot read struct fields with this type" throw ]
233 : c-type-getter-boxer ( name -- quot )
234 [ c-getter ] [ c-type-boxer-quot ] bi append ;
236 : c-setter ( name -- quot )
238 [ "Cannot write struct fields with this type" throw ]
241 : array-accessor ( type quot -- def )
243 \ swap , [ heap-size , [ * >fixnum ] % ] [ % ] bi*
246 GENERIC: typedef ( old new -- )
248 PREDICATE: typedef-word < c-type-word
249 "c-type" word-prop c-type-name? ;
251 M: string typedef ( old new -- ) c-types get set-at ;
252 M: word typedef ( old new -- )
254 [ nip define-symbol ]
256 [ swap "c-type" set-word-prop ]
258 swap dup c-type-name? [
260 "pointer-c-type" set-word-prop
265 TUPLE: long-long-type < c-type ;
267 : <long-long-type> ( -- type )
270 M: long-long-type unbox-parameter ( n type -- )
271 c-type-unboxer %unbox-long-long ;
273 M: long-long-type unbox-return ( type -- )
274 f swap unbox-parameter ;
276 M: long-long-type box-parameter ( n type -- )
277 c-type-boxer %box-long-long ;
279 M: long-long-type box-return ( type -- )
280 f swap box-parameter ;
282 : define-deref ( name -- )
283 [ CHAR: * prefix "alien.c-types" create ] [ c-getter 0 prefix ] bi
284 (( c-ptr -- value )) define-inline ;
286 : define-out ( name -- )
287 [ "alien.c-types" constructor-word ]
288 [ dup c-setter '[ _ heap-size <byte-array> [ 0 @ ] keep ] ] bi
289 (( value -- c-ptr )) define-inline ;
291 : define-primitive-type ( type name -- )
293 [ name>> define-deref ]
294 [ name>> define-out ]
297 : if-void ( type true false -- )
298 pick void? [ drop nip call ] [ nip call ] if ; inline
300 CONSTANT: primitive-types
312 ptrdiff_t intptr_t size_t
319 [ alien-cell ] >>getter
320 [ [ >c-ptr ] 2dip set-alien-cell ] >>setter
321 bootstrap-cell >>size
322 bootstrap-cell >>align
323 [ >c-ptr ] >>unboxer-quot
325 "alien_offset" >>unboxer
326 \ void* define-primitive-type
330 integer >>boxed-class
331 [ alien-signed-8 ] >>getter
332 [ set-alien-signed-8 ] >>setter
335 "box_signed_8" >>boxer
336 "to_signed_8" >>unboxer
337 \ longlong define-primitive-type
341 integer >>boxed-class
342 [ alien-unsigned-8 ] >>getter
343 [ set-alien-unsigned-8 ] >>setter
346 "box_unsigned_8" >>boxer
347 "to_unsigned_8" >>unboxer
348 \ ulonglong define-primitive-type
352 integer >>boxed-class
353 [ alien-signed-cell ] >>getter
354 [ set-alien-signed-cell ] >>setter
355 bootstrap-cell >>size
356 bootstrap-cell >>align
357 "box_signed_cell" >>boxer
358 "to_fixnum" >>unboxer
359 \ long define-primitive-type
363 integer >>boxed-class
364 [ alien-unsigned-cell ] >>getter
365 [ set-alien-unsigned-cell ] >>setter
366 bootstrap-cell >>size
367 bootstrap-cell >>align
368 "box_unsigned_cell" >>boxer
370 \ ulong define-primitive-type
374 integer >>boxed-class
375 [ alien-signed-4 ] >>getter
376 [ set-alien-signed-4 ] >>setter
379 "box_signed_4" >>boxer
380 "to_fixnum" >>unboxer
381 \ int define-primitive-type
385 integer >>boxed-class
386 [ alien-unsigned-4 ] >>getter
387 [ set-alien-unsigned-4 ] >>setter
390 "box_unsigned_4" >>boxer
392 \ uint define-primitive-type
397 [ alien-signed-2 ] >>getter
398 [ set-alien-signed-2 ] >>setter
401 "box_signed_2" >>boxer
402 "to_fixnum" >>unboxer
403 \ short define-primitive-type
408 [ alien-unsigned-2 ] >>getter
409 [ set-alien-unsigned-2 ] >>setter
412 "box_unsigned_2" >>boxer
414 \ ushort define-primitive-type
419 [ alien-signed-1 ] >>getter
420 [ set-alien-signed-1 ] >>setter
423 "box_signed_1" >>boxer
424 "to_fixnum" >>unboxer
425 \ char define-primitive-type
430 [ alien-unsigned-1 ] >>getter
431 [ set-alien-unsigned-1 ] >>setter
434 "box_unsigned_1" >>boxer
436 \ uchar define-primitive-type
439 [ alien-unsigned-1 0 = not ] >>getter
440 [ [ 1 0 ? ] 2dip set-alien-unsigned-1 ] >>setter
443 "box_boolean" >>boxer
444 "to_boolean" >>unboxer
445 \ bool define-primitive-type
449 math:float >>boxed-class
450 [ alien-float ] >>getter
451 [ [ >float ] 2dip set-alien-float ] >>setter
457 [ >float ] >>unboxer-quot
458 \ float define-primitive-type
462 math:float >>boxed-class
463 [ alien-double ] >>getter
464 [ [ >float ] 2dip set-alien-double ] >>setter
468 "to_double" >>unboxer
470 [ >float ] >>unboxer-quot
471 \ double define-primitive-type
473 \ long \ ptrdiff_t typedef
474 \ long \ intptr_t typedef
475 \ ulong \ size_t typedef
476 ] with-compilation-unit
478 M: char-16-rep rep-component-type drop char ;
479 M: uchar-16-rep rep-component-type drop uchar ;
480 M: short-8-rep rep-component-type drop short ;
481 M: ushort-8-rep rep-component-type drop ushort ;
482 M: int-4-rep rep-component-type drop int ;
483 M: uint-4-rep rep-component-type drop uint ;
484 M: longlong-2-rep rep-component-type drop longlong ;
485 M: ulonglong-2-rep rep-component-type drop ulonglong ;
486 M: float-4-rep rep-component-type drop float ;
487 M: double-2-rep rep-component-type drop double ;
489 : (unsigned-interval) ( bytes -- from to ) [ 0 ] dip 8 * 2^ 1 - ; foldable
490 : unsigned-interval ( c-type -- from to ) heap-size (unsigned-interval) ; foldable
491 : (signed-interval) ( bytes -- from to ) 8 * 1 - 2^ [ neg ] [ 1 - ] bi ; foldable
492 : signed-interval ( c-type -- from to ) heap-size (signed-interval) ; foldable
494 : c-type-interval ( c-type -- from to )
496 { [ dup { float double } memq? ] [ drop -1/0. 1/0. ] }
497 { [ dup { char short int long longlong } memq? ] [ signed-interval ] }
498 { [ dup { uchar ushort uint ulong ulonglong } memq? ] [ unsigned-interval ] }
501 : c-type-clamp ( value c-type -- value' ) c-type-interval clamp ; inline