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 ; inline
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>> cell align ;
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 this type" throw ]
178 : c-setter ( name -- quot )
180 [ "Cannot write struct fields with this 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 : array-accessor ( type quot -- def )
206 \ swap , [ heap-size , [ * >fixnum ] % ] [ % ] bi*
209 : typedef ( old new -- ) c-types get set-at ;
211 TUPLE: long-long-type < c-type ;
213 : <long-long-type> ( -- type )
214 long-long-type new-c-type ;
216 M: long-long-type unbox-parameter ( n type -- )
217 c-type-unboxer %unbox-long-long ;
219 M: long-long-type unbox-return ( type -- )
220 f swap unbox-parameter ;
222 M: long-long-type box-parameter ( n type -- )
223 c-type-boxer %box-long-long ;
225 M: long-long-type box-return ( type -- )
226 f swap box-parameter ;
228 : define-deref ( name -- )
229 [ CHAR: * prefix "alien.c-types" create ]
230 [ c-getter 0 prefix ] bi
233 : define-out ( name -- )
234 [ "alien.c-types" constructor-word ]
235 [ [ [ <c-object> ] curry ] [ c-setter ] bi append ] bi
238 : c-bool> ( int -- ? )
241 : define-primitive-type ( type name -- )
247 : expand-constants ( c-type -- c-type' )
252 def>> { } swap with-datastack first
258 : malloc-file-contents ( path -- alien len )
259 binary file-contents dup malloc-byte-array swap length ;
261 : if-void ( type true false -- )
262 pick "void" = [ drop nip call ] [ nip call ] if ; inline
270 "longlong" "ulonglong"
277 [ alien-cell ] >>getter
278 [ set-alien-cell ] >>setter
279 bootstrap-cell >>size
280 bootstrap-cell >>align
282 "alien_offset" >>unboxer
283 "void*" define-primitive-type
286 [ alien-signed-8 ] >>getter
287 [ set-alien-signed-8 ] >>setter
290 "box_signed_8" >>boxer
291 "to_signed_8" >>unboxer
292 "longlong" define-primitive-type
295 [ alien-unsigned-8 ] >>getter
296 [ set-alien-unsigned-8 ] >>setter
299 "box_unsigned_8" >>boxer
300 "to_unsigned_8" >>unboxer
301 "ulonglong" define-primitive-type
304 [ alien-signed-cell ] >>getter
305 [ set-alien-signed-cell ] >>setter
306 bootstrap-cell >>size
307 bootstrap-cell >>align
308 "box_signed_cell" >>boxer
309 "to_fixnum" >>unboxer
310 "long" define-primitive-type
313 [ alien-unsigned-cell ] >>getter
314 [ set-alien-unsigned-cell ] >>setter
315 bootstrap-cell >>size
316 bootstrap-cell >>align
317 "box_unsigned_cell" >>boxer
319 "ulong" define-primitive-type
322 [ alien-signed-4 ] >>getter
323 [ set-alien-signed-4 ] >>setter
326 "box_signed_4" >>boxer
327 "to_fixnum" >>unboxer
328 "int" define-primitive-type
331 [ alien-unsigned-4 ] >>getter
332 [ set-alien-unsigned-4 ] >>setter
335 "box_unsigned_4" >>boxer
337 "uint" define-primitive-type
340 [ alien-signed-2 ] >>getter
341 [ set-alien-signed-2 ] >>setter
344 "box_signed_2" >>boxer
345 "to_fixnum" >>unboxer
346 "short" define-primitive-type
349 [ alien-unsigned-2 ] >>getter
350 [ set-alien-unsigned-2 ] >>setter
353 "box_unsigned_2" >>boxer
355 "ushort" define-primitive-type
358 [ alien-signed-1 ] >>getter
359 [ set-alien-signed-1 ] >>setter
362 "box_signed_1" >>boxer
363 "to_fixnum" >>unboxer
364 "char" define-primitive-type
367 [ alien-unsigned-1 ] >>getter
368 [ set-alien-unsigned-1 ] >>setter
371 "box_unsigned_1" >>boxer
373 "uchar" define-primitive-type
376 [ alien-unsigned-4 zero? not ] >>getter
377 [ [ 1 0 ? ] 2dip set-alien-unsigned-4 ] >>setter
380 "box_boolean" >>boxer
381 "to_boolean" >>unboxer
382 "bool" define-primitive-type
385 [ alien-float ] >>getter
386 [ [ >float ] 2dip set-alien-float ] >>setter
391 single-float-regs >>reg-class
392 [ >float ] >>unboxer-quot
393 "float" define-primitive-type
396 [ alien-double ] >>getter
397 [ [ >float ] 2dip set-alien-double ] >>setter
401 "to_double" >>unboxer
402 double-float-regs >>reg-class
403 [ >float ] >>unboxer-quot
404 "double" define-primitive-type
406 "long" "ptrdiff_t" typedef
407 "long" "intptr_t" typedef
408 "ulong" "size_t" typedef
409 ] with-compilation-unit