1 ! Copyright (C) 2004, 2008 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 assocs splitting
5 math.parser cpu.architecture alien alien.accessors quotations
6 layouts system compiler.units io.files io.encodings.binary
7 accessors combinators effects continuations ;
13 : little-endian? ( -- ? ) 1 <int> *char 1 = ; foldable
16 boxer boxer-quot unboxer unboxer-quot
18 reg-class size align stack-align? ;
20 : new-c-type ( class -- type )
22 int-regs >>reg-class ;
24 : <c-type> ( -- type )
30 c-types [ H{ } assoc-like ] change
33 ERROR: no-c-type name ;
35 : (c-type) ( name -- type/f )
36 c-types get-global at dup [
37 dup string? [ (c-type) ] when
41 GENERIC: c-type ( name -- type ) foldable
43 : resolve-pointer-type ( name -- name )
44 c-types get at dup string?
45 [ "*" append ] [ drop "void*" ] if
48 : resolve-typedef ( name -- type )
49 dup string? [ c-type ] when ;
51 : parse-array-type ( name -- array )
53 >r [ "]" ?tail drop string>number ] map r> prefix ;
55 M: string c-type ( name -- type )
56 CHAR: ] over member? [
62 "*" ?tail [ resolve-pointer-type ] [ no-c-type ] if
66 GENERIC: c-type-boxer ( name -- boxer )
68 M: c-type c-type-boxer boxer>> ;
70 M: string c-type-boxer c-type c-type-boxer ;
72 GENERIC: c-type-boxer-quot ( name -- quot )
74 M: c-type c-type-boxer-quot boxer-quot>> ;
76 M: string c-type-boxer-quot c-type c-type-boxer-quot ;
78 GENERIC: c-type-unboxer ( name -- boxer )
80 M: c-type c-type-unboxer unboxer>> ;
82 M: string c-type-unboxer c-type c-type-unboxer ;
84 GENERIC: c-type-unboxer-quot ( name -- quot )
86 M: c-type c-type-unboxer-quot unboxer-quot>> ;
88 M: string c-type-unboxer-quot c-type c-type-unboxer-quot ;
90 GENERIC: c-type-reg-class ( name -- reg-class )
92 M: c-type c-type-reg-class reg-class>> ;
94 M: string c-type-reg-class c-type c-type-reg-class ;
96 GENERIC: c-type-getter ( name -- quot )
98 M: c-type c-type-getter getter>> ;
100 M: string c-type-getter c-type c-type-getter ;
102 GENERIC: c-type-setter ( name -- quot )
104 M: c-type c-type-setter setter>> ;
106 M: string c-type-setter c-type c-type-setter ;
108 GENERIC: c-type-align ( name -- n )
110 M: c-type c-type-align align>> ;
112 M: string c-type-align c-type c-type-align ;
114 GENERIC: c-type-stack-align? ( name -- ? )
116 M: c-type c-type-stack-align? stack-align?>> ;
118 M: string c-type-stack-align? c-type c-type-stack-align? ;
120 : c-type-box ( n type -- )
122 swap c-type-boxer [ "No boxer" throw ] unless*
125 : c-type-unbox ( n ctype -- )
127 swap c-type-unboxer [ "No unboxer" throw ] unless*
130 GENERIC: box-parameter ( n ctype -- )
132 M: c-type box-parameter c-type-box ;
134 M: string box-parameter c-type box-parameter ;
136 GENERIC: box-return ( ctype -- )
138 M: c-type box-return f swap c-type-box ;
140 M: string box-return c-type box-return ;
142 GENERIC: unbox-parameter ( n ctype -- )
144 M: c-type unbox-parameter c-type-unbox ;
146 M: string unbox-parameter c-type unbox-parameter ;
148 GENERIC: unbox-return ( ctype -- )
150 M: c-type unbox-return f swap c-type-unbox ;
152 M: string unbox-return c-type unbox-return ;
154 ! These words being foldable means that words need to be
155 ! recompiled if a C type is redefined. Even so, folding the
156 ! size facilitates some optimizations.
157 GENERIC: heap-size ( type -- size ) foldable
159 M: string heap-size c-type heap-size ;
161 M: c-type heap-size size>> ;
163 GENERIC: stack-size ( type -- size ) foldable
165 M: string stack-size c-type stack-size ;
167 M: c-type stack-size size>> ;
169 GENERIC: byte-length ( seq -- n ) flushable
171 M: byte-array byte-length length ;
173 : c-getter ( name -- quot )
175 [ "Cannot read struct fields with type" throw ]
178 : c-setter ( name -- quot )
180 [ "Cannot write struct fields with type" throw ]
183 : <c-array> ( n type -- array )
184 heap-size * <byte-array> ; inline
186 : <c-object> ( type -- array )
187 1 swap <c-array> ; inline
189 : malloc-array ( n type -- alien )
190 heap-size calloc ; inline
192 : malloc-object ( type -- alien )
193 1 swap malloc-array ; inline
195 : malloc-byte-array ( byte-array -- alien )
196 dup length dup malloc [ -rot memcpy ] keep ;
198 : memory>byte-array ( alien len -- byte-array )
199 dup <byte-array> [ -rot memcpy ] keep ;
201 : byte-array>memory ( byte-array base -- )
202 swap dup length memcpy ;
204 : (define-nth) ( word type quot -- )
206 \ swap , [ heap-size , [ * >fixnum ] % ] [ % ] bi*
207 ] [ ] make define-inline ;
209 : nth-word ( name vocab -- word )
210 >r "-nth" append r> create ;
212 : define-nth ( name vocab -- )
213 dupd nth-word swap dup c-getter (define-nth) ;
215 : set-nth-word ( name vocab -- word )
216 >r "set-" swap "-nth" 3append r> create ;
218 : define-set-nth ( name vocab -- )
219 dupd set-nth-word swap dup c-setter (define-nth) ;
221 : typedef ( old new -- ) c-types get set-at ;
223 : define-c-type ( type name vocab -- )
224 >r tuck typedef r> [ define-nth ] 2keep define-set-nth ;
226 TUPLE: long-long-type < c-type ;
228 : <long-long-type> ( -- type )
229 long-long-type new-c-type ;
231 M: long-long-type unbox-parameter ( n type -- )
232 c-type-unboxer %unbox-long-long ;
234 M: long-long-type unbox-return ( type -- )
235 f swap unbox-parameter ;
237 M: long-long-type box-parameter ( n type -- )
238 c-type-boxer %box-long-long ;
240 M: long-long-type box-return ( type -- )
241 f swap box-parameter ;
243 : define-deref ( name vocab -- )
244 >r dup CHAR: * prefix r> create
245 swap c-getter 0 prefix define-inline ;
247 : define-out ( name vocab -- )
248 over [ <c-object> tuck 0 ] over c-setter append swap
249 >r >r constructor-word r> r> prefix define-inline ;
251 : c-bool> ( int -- ? )
254 : >c-array ( seq type word -- byte-array )
255 [ [ dup length ] dip <c-array> ] dip
256 [ [ execute ] 2curry each-index ] 2keep drop ; inline
258 : >c-array-quot ( type vocab -- quot )
259 dupd set-nth-word [ >c-array ] 2curry ;
261 : to-array-word ( name vocab -- word )
262 >r ">c-" swap "-array" 3append r> create ;
264 : define-to-array ( type vocab -- )
265 [ to-array-word ] 2keep >c-array-quot
266 (( array -- byte-array )) define-declared ;
268 : c-array>quot ( type vocab -- quot )
271 nth-word 1quotation ,
275 : from-array-word ( name vocab -- word )
276 >r "c-" swap "-array>" 3append r> create ;
278 : define-from-array ( type vocab -- )
279 [ from-array-word ] 2keep c-array>quot
280 (( c-ptr n -- array )) define-declared ;
282 : define-primitive-type ( type name -- )
288 [ define-from-array ]
292 : expand-constants ( c-type -- c-type' )
296 def>> { } swap with-datastack first
301 : malloc-file-contents ( path -- alien len )
302 binary file-contents dup malloc-byte-array swap length ;
304 : if-void ( type true false -- )
305 pick "void" = [ drop nip call ] [ nip call ] if ; inline
309 [ alien-cell ] >>getter
310 [ set-alien-cell ] >>setter
311 bootstrap-cell >>size
312 bootstrap-cell >>align
314 "alien_offset" >>unboxer
315 "void*" define-primitive-type
318 [ alien-signed-8 ] >>getter
319 [ set-alien-signed-8 ] >>setter
322 "box_signed_8" >>boxer
323 "to_signed_8" >>unboxer
324 "longlong" define-primitive-type
327 [ alien-unsigned-8 ] >>getter
328 [ set-alien-unsigned-8 ] >>setter
331 "box_unsigned_8" >>boxer
332 "to_unsigned_8" >>unboxer
333 "ulonglong" define-primitive-type
336 [ alien-signed-cell ] >>getter
337 [ set-alien-signed-cell ] >>setter
338 bootstrap-cell >>size
339 bootstrap-cell >>align
340 "box_signed_cell" >>boxer
341 "to_fixnum" >>unboxer
342 "long" define-primitive-type
345 [ alien-unsigned-cell ] >>getter
346 [ set-alien-unsigned-cell ] >>setter
347 bootstrap-cell >>size
348 bootstrap-cell >>align
349 "box_unsigned_cell" >>boxer
351 "ulong" define-primitive-type
354 [ alien-signed-4 ] >>getter
355 [ set-alien-signed-4 ] >>setter
358 "box_signed_4" >>boxer
359 "to_fixnum" >>unboxer
360 "int" define-primitive-type
363 [ alien-unsigned-4 ] >>getter
364 [ set-alien-unsigned-4 ] >>setter
367 "box_unsigned_4" >>boxer
369 "uint" define-primitive-type
372 [ alien-signed-2 ] >>getter
373 [ set-alien-signed-2 ] >>setter
376 "box_signed_2" >>boxer
377 "to_fixnum" >>unboxer
378 "short" define-primitive-type
381 [ alien-unsigned-2 ] >>getter
382 [ set-alien-unsigned-2 ] >>setter
385 "box_unsigned_2" >>boxer
387 "ushort" define-primitive-type
390 [ alien-signed-1 ] >>getter
391 [ set-alien-signed-1 ] >>setter
394 "box_signed_1" >>boxer
395 "to_fixnum" >>unboxer
396 "char" define-primitive-type
399 [ alien-unsigned-1 ] >>getter
400 [ set-alien-unsigned-1 ] >>setter
403 "box_unsigned_1" >>boxer
405 "uchar" define-primitive-type
408 [ alien-unsigned-4 zero? not ] >>getter
409 [ [ 1 0 ? ] 2dip set-alien-unsigned-4 ] >>setter
412 "box_boolean" >>boxer
413 "to_boolean" >>unboxer
414 "bool" define-primitive-type
417 [ alien-float ] >>getter
418 [ [ >float ] 2dip set-alien-float ] >>setter
423 single-float-regs >>reg-class
424 [ >float ] >>unboxer-quot
425 "float" define-primitive-type
428 [ alien-double ] >>getter
429 [ [ >float ] 2dip set-alien-double ] >>setter
433 "to_double" >>unboxer
434 double-float-regs >>reg-class
435 [ >float ] >>unboxer-quot
436 "double" define-primitive-type
438 os winnt? cpu x86.64? and "longlong" "long" ? "ptrdiff_t" typedef
440 "ulong" "size_t" typedef
441 ] with-compilation-unit