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 libc math
4 namespaces make parser sequences strings words splitting math.parser
5 cpu.architecture alien alien.accessors alien.strings quotations
6 layouts system compiler.units io io.files io.encodings.binary
7 io.streams.memory accessors combinators effects continuations fry
8 classes vocabs vocabs.loader ;
14 : little-endian? ( -- ? ) 1 <int> *char 1 = ; foldable
16 TUPLE: abstract-c-type
17 { class class initial: object }
18 { boxed-class class initial: object }
19 { boxer-quot callable }
20 { unboxer-quot callable }
26 TUPLE: c-type < abstract-c-type
29 { rep initial: int-rep }
32 : <c-type> ( -- type )
38 c-types [ H{ } assoc-like ] change
41 ERROR: no-c-type name ;
43 : (c-type) ( name -- type/f )
44 c-types get-global at dup [
45 dup string? [ (c-type) ] when
49 GENERIC: c-type ( name -- type ) foldable
51 : resolve-pointer-type ( name -- name )
52 c-types get at dup string?
53 [ "*" append ] [ drop "void*" ] if
56 : resolve-typedef ( name -- type )
57 dup string? [ c-type ] when ;
59 : parse-array-type ( name -- array )
61 [ [ "]" ?tail drop string>number ] map ] dip prefix ;
63 M: string c-type ( name -- type )
64 CHAR: ] over member? [
70 "*" ?tail [ resolve-pointer-type ] [ no-c-type ] if
74 GENERIC: c-struct? ( type -- ? )
79 dup "void" = [ drop f ] [ c-type c-struct? ] if ;
81 ! These words being foldable means that words need to be
82 ! recompiled if a C type is redefined. Even so, folding the
83 ! size facilitates some optimizations.
84 GENERIC: heap-size ( type -- size ) foldable
86 M: string heap-size c-type heap-size ;
88 M: abstract-c-type heap-size size>> ;
90 GENERIC: require-c-array ( c-type -- )
92 M: array require-c-array first require-c-array ;
94 GENERIC: c-array-constructor ( c-type -- word )
96 GENERIC: c-(array)-constructor ( c-type -- word )
98 GENERIC: c-direct-array-constructor ( c-type -- word )
100 GENERIC: <c-array> ( len c-type -- array )
103 c-array-constructor execute( len -- array ) ; inline
105 GENERIC: (c-array) ( len c-type -- array )
108 c-(array)-constructor execute( len -- array ) ; inline
110 GENERIC: <c-direct-array> ( alien len c-type -- array )
112 M: string <c-direct-array>
113 c-direct-array-constructor execute( alien len -- array ) ; inline
115 : malloc-array ( n type -- alien )
116 [ heap-size calloc ] [ <c-direct-array> ] 2bi ; inline
118 : (malloc-array) ( n type -- alien )
119 [ heap-size * malloc ] [ <c-direct-array> ] 2bi ; inline
121 GENERIC: c-type-class ( name -- class )
123 M: abstract-c-type c-type-class class>> ;
125 M: string c-type-class c-type c-type-class ;
127 GENERIC: c-type-boxed-class ( name -- class )
129 M: abstract-c-type c-type-boxed-class boxed-class>> ;
131 M: string c-type-boxed-class c-type c-type-boxed-class ;
133 GENERIC: c-type-boxer ( name -- boxer )
135 M: c-type c-type-boxer boxer>> ;
137 M: string c-type-boxer c-type c-type-boxer ;
139 GENERIC: c-type-boxer-quot ( name -- quot )
141 M: abstract-c-type c-type-boxer-quot boxer-quot>> ;
143 M: string c-type-boxer-quot c-type c-type-boxer-quot ;
145 GENERIC: c-type-unboxer ( name -- boxer )
147 M: c-type c-type-unboxer unboxer>> ;
149 M: string c-type-unboxer c-type c-type-unboxer ;
151 GENERIC: c-type-unboxer-quot ( name -- quot )
153 M: abstract-c-type c-type-unboxer-quot unboxer-quot>> ;
155 M: string c-type-unboxer-quot c-type c-type-unboxer-quot ;
157 GENERIC: c-type-rep ( name -- rep )
159 M: c-type c-type-rep rep>> ;
161 M: string c-type-rep c-type c-type-rep ;
163 GENERIC: c-type-getter ( name -- quot )
165 M: c-type c-type-getter getter>> ;
167 M: string c-type-getter c-type c-type-getter ;
169 GENERIC: c-type-setter ( name -- quot )
171 M: c-type c-type-setter setter>> ;
173 M: string c-type-setter c-type c-type-setter ;
175 GENERIC: c-type-align ( name -- n )
177 M: abstract-c-type c-type-align align>> ;
179 M: string c-type-align c-type c-type-align ;
181 GENERIC: c-type-stack-align? ( name -- ? )
183 M: c-type c-type-stack-align? stack-align?>> ;
185 M: string c-type-stack-align? c-type c-type-stack-align? ;
187 : c-type-box ( n type -- )
188 [ c-type-rep ] [ c-type-boxer [ "No boxer" throw ] unless* ] bi
191 : c-type-unbox ( n ctype -- )
192 [ c-type-rep ] [ c-type-unboxer [ "No unboxer" throw ] unless* ] bi
195 GENERIC: box-parameter ( n ctype -- )
197 M: c-type box-parameter c-type-box ;
199 M: string box-parameter c-type box-parameter ;
201 GENERIC: box-return ( ctype -- )
203 M: c-type box-return f swap c-type-box ;
205 M: string box-return c-type box-return ;
207 GENERIC: unbox-parameter ( n ctype -- )
209 M: c-type unbox-parameter c-type-unbox ;
211 M: string unbox-parameter c-type unbox-parameter ;
213 GENERIC: unbox-return ( ctype -- )
215 M: c-type unbox-return f swap c-type-unbox ;
217 M: string unbox-return c-type unbox-return ;
219 GENERIC: stack-size ( type -- size ) foldable
221 M: string stack-size c-type stack-size ;
223 M: c-type stack-size size>> cell align ;
227 M: value-type c-type-rep drop int-rep ;
229 M: value-type c-type-getter
230 drop [ swap <displaced-alien> ] ;
232 M: value-type c-type-setter ( type -- quot )
233 [ c-type-getter ] [ c-type-unboxer-quot ] [ heap-size ] tri
234 '[ @ swap @ _ memcpy ] ;
236 GENERIC: byte-length ( seq -- n ) flushable
238 M: byte-array byte-length length ; inline
240 M: f byte-length drop 0 ; inline
242 : c-getter ( name -- quot )
244 [ "Cannot read struct fields with this type" throw ]
247 : c-type-getter-boxer ( name -- quot )
248 [ c-getter ] [ c-type-boxer-quot ] bi append ;
250 : c-setter ( name -- quot )
252 [ "Cannot write struct fields with this type" throw ]
255 : <c-object> ( type -- array )
256 heap-size <byte-array> ; inline
258 : (c-object) ( type -- array )
259 heap-size (byte-array) ; inline
261 : malloc-object ( type -- alien )
262 1 swap heap-size calloc ; inline
264 : (malloc-object) ( type -- alien )
265 heap-size malloc ; inline
267 : malloc-byte-array ( byte-array -- alien )
268 dup byte-length [ nip malloc dup ] 2keep memcpy ;
270 : memory>byte-array ( alien len -- byte-array )
271 [ nip (byte-array) dup ] 2keep memcpy ;
273 : malloc-string ( string encoding -- alien )
274 string>alien malloc-byte-array ;
276 M: memory-stream stream-read
278 [ index>> ] [ alien>> ] bi <displaced-alien>
279 swap memory>byte-array
280 ] [ [ + ] change-index drop ] 2bi ;
282 : byte-array>memory ( byte-array base -- )
283 swap dup byte-length memcpy ; inline
285 : array-accessor ( type quot -- def )
287 \ swap , [ heap-size , [ * >fixnum ] % ] [ % ] bi*
290 : typedef ( old new -- ) c-types get set-at ;
292 TUPLE: long-long-type < c-type ;
294 : <long-long-type> ( -- type )
297 M: long-long-type unbox-parameter ( n type -- )
298 c-type-unboxer %unbox-long-long ;
300 M: long-long-type unbox-return ( type -- )
301 f swap unbox-parameter ;
303 M: long-long-type box-parameter ( n type -- )
304 c-type-boxer %box-long-long ;
306 M: long-long-type box-return ( type -- )
307 f swap box-parameter ;
309 : define-deref ( name -- )
310 [ CHAR: * prefix "alien.c-types" create ] [ c-getter 0 prefix ] bi
311 (( c-ptr -- value )) define-inline ;
313 : define-out ( name -- )
314 [ "alien.c-types" constructor-word ]
315 [ dup c-setter '[ _ <c-object> [ 0 @ ] keep ] ] bi
316 (( value -- c-ptr )) define-inline ;
318 : >c-bool ( ? -- int ) 1 0 ? ; inline
320 : c-bool> ( int -- ? ) 0 = not ; inline
322 : define-primitive-type ( type name -- )
328 : malloc-file-contents ( path -- alien len )
329 binary file-contents [ malloc-byte-array ] [ length ] bi ;
331 : if-void ( type true false -- )
332 pick "void" = [ drop nip call ] [ nip call ] if ; inline
334 CONSTANT: primitive-types
340 "longlong" "ulonglong"
349 [ alien-cell ] >>getter
350 [ [ >c-ptr ] 2dip set-alien-cell ] >>setter
351 bootstrap-cell >>size
352 bootstrap-cell >>align
353 [ >c-ptr ] >>unboxer-quot
355 "alien_offset" >>unboxer
356 "void*" define-primitive-type
360 integer >>boxed-class
361 [ alien-signed-8 ] >>getter
362 [ set-alien-signed-8 ] >>setter
365 "box_signed_8" >>boxer
366 "to_signed_8" >>unboxer
367 "longlong" define-primitive-type
371 integer >>boxed-class
372 [ alien-unsigned-8 ] >>getter
373 [ set-alien-unsigned-8 ] >>setter
376 "box_unsigned_8" >>boxer
377 "to_unsigned_8" >>unboxer
378 "ulonglong" define-primitive-type
382 integer >>boxed-class
383 [ alien-signed-cell ] >>getter
384 [ set-alien-signed-cell ] >>setter
385 bootstrap-cell >>size
386 bootstrap-cell >>align
387 "box_signed_cell" >>boxer
388 "to_fixnum" >>unboxer
389 "long" define-primitive-type
393 integer >>boxed-class
394 [ alien-unsigned-cell ] >>getter
395 [ set-alien-unsigned-cell ] >>setter
396 bootstrap-cell >>size
397 bootstrap-cell >>align
398 "box_unsigned_cell" >>boxer
400 "ulong" define-primitive-type
404 integer >>boxed-class
405 [ alien-signed-4 ] >>getter
406 [ set-alien-signed-4 ] >>setter
409 "box_signed_4" >>boxer
410 "to_fixnum" >>unboxer
411 "int" define-primitive-type
415 integer >>boxed-class
416 [ alien-unsigned-4 ] >>getter
417 [ set-alien-unsigned-4 ] >>setter
420 "box_unsigned_4" >>boxer
422 "uint" define-primitive-type
427 [ alien-signed-2 ] >>getter
428 [ set-alien-signed-2 ] >>setter
431 "box_signed_2" >>boxer
432 "to_fixnum" >>unboxer
433 "short" define-primitive-type
438 [ alien-unsigned-2 ] >>getter
439 [ set-alien-unsigned-2 ] >>setter
442 "box_unsigned_2" >>boxer
444 "ushort" define-primitive-type
449 [ alien-signed-1 ] >>getter
450 [ set-alien-signed-1 ] >>setter
453 "box_signed_1" >>boxer
454 "to_fixnum" >>unboxer
455 "char" define-primitive-type
460 [ alien-unsigned-1 ] >>getter
461 [ set-alien-unsigned-1 ] >>setter
464 "box_unsigned_1" >>boxer
466 "uchar" define-primitive-type
469 [ alien-unsigned-1 c-bool> ] >>getter
470 [ [ >c-bool ] 2dip set-alien-unsigned-1 ] >>setter
473 "box_boolean" >>boxer
474 "to_boolean" >>unboxer
475 "bool" define-primitive-type
480 [ alien-float ] >>getter
481 [ [ >float ] 2dip set-alien-float ] >>setter
487 [ >float ] >>unboxer-quot
488 "float" define-primitive-type
493 [ alien-double ] >>getter
494 [ [ >float ] 2dip set-alien-double ] >>setter
498 "to_double" >>unboxer
500 [ >float ] >>unboxer-quot
501 "double" define-primitive-type
503 "long" "ptrdiff_t" typedef
504 "long" "intptr_t" typedef
505 "ulong" "size_t" typedef
506 ] with-compilation-unit