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 fry ;
13 : little-endian? ( -- ? ) 1 <int> *char 1 = ; foldable
17 boxer boxer-quot unboxer unboxer-quot
19 reg-class size align stack-align? ;
21 : new-c-type ( class -- type )
24 object >>class ; inline
26 : <c-type> ( -- type )
32 c-types [ H{ } assoc-like ] change
35 ERROR: no-c-type name ;
37 : (c-type) ( name -- type/f )
38 c-types get-global at dup [
39 dup string? [ (c-type) ] when
43 GENERIC: c-type ( name -- type ) foldable
45 : resolve-pointer-type ( name -- name )
46 c-types get at dup string?
47 [ "*" append ] [ drop "void*" ] if
50 : resolve-typedef ( name -- type )
51 dup string? [ c-type ] when ;
53 : parse-array-type ( name -- array )
55 [ [ "]" ?tail drop string>number ] map ] dip prefix ;
57 M: string c-type ( name -- type )
58 CHAR: ] over member? [
64 "*" ?tail [ resolve-pointer-type ] [ no-c-type ] if
68 GENERIC: c-type-class ( name -- class )
70 M: c-type c-type-class class>> ;
72 M: string c-type-class c-type c-type-class ;
74 GENERIC: c-type-boxer ( name -- boxer )
76 M: c-type c-type-boxer boxer>> ;
78 M: string c-type-boxer c-type c-type-boxer ;
80 GENERIC: c-type-boxer-quot ( name -- quot )
82 M: c-type c-type-boxer-quot boxer-quot>> ;
84 M: string c-type-boxer-quot c-type c-type-boxer-quot ;
86 GENERIC: c-type-unboxer ( name -- boxer )
88 M: c-type c-type-unboxer unboxer>> ;
90 M: string c-type-unboxer c-type c-type-unboxer ;
92 GENERIC: c-type-unboxer-quot ( name -- quot )
94 M: c-type c-type-unboxer-quot unboxer-quot>> ;
96 M: string c-type-unboxer-quot c-type c-type-unboxer-quot ;
98 GENERIC: c-type-reg-class ( name -- reg-class )
100 M: c-type c-type-reg-class reg-class>> ;
102 M: string c-type-reg-class c-type c-type-reg-class ;
104 GENERIC: c-type-getter ( name -- quot )
106 M: c-type c-type-getter getter>> ;
108 M: string c-type-getter c-type c-type-getter ;
110 GENERIC: c-type-setter ( name -- quot )
112 M: c-type c-type-setter setter>> ;
114 M: string c-type-setter c-type c-type-setter ;
116 GENERIC: c-type-align ( name -- n )
118 M: c-type c-type-align align>> ;
120 M: string c-type-align c-type c-type-align ;
122 GENERIC: c-type-stack-align? ( name -- ? )
124 M: c-type c-type-stack-align? stack-align?>> ;
126 M: string c-type-stack-align? c-type c-type-stack-align? ;
128 : c-type-box ( n type -- )
130 swap c-type-boxer [ "No boxer" throw ] unless*
133 : c-type-unbox ( n ctype -- )
135 swap c-type-unboxer [ "No unboxer" throw ] unless*
138 GENERIC: box-parameter ( n ctype -- )
140 M: c-type box-parameter c-type-box ;
142 M: string box-parameter c-type box-parameter ;
144 GENERIC: box-return ( ctype -- )
146 M: c-type box-return f swap c-type-box ;
148 M: string box-return c-type box-return ;
150 GENERIC: unbox-parameter ( n ctype -- )
152 M: c-type unbox-parameter c-type-unbox ;
154 M: string unbox-parameter c-type unbox-parameter ;
156 GENERIC: unbox-return ( ctype -- )
158 M: c-type unbox-return f swap c-type-unbox ;
160 M: string unbox-return c-type unbox-return ;
162 ! These words being foldable means that words need to be
163 ! recompiled if a C type is redefined. Even so, folding the
164 ! size facilitates some optimizations.
165 GENERIC: heap-size ( type -- size ) foldable
167 M: string heap-size c-type heap-size ;
169 M: c-type heap-size size>> ;
171 GENERIC: stack-size ( type -- size ) foldable
173 M: string stack-size c-type stack-size ;
175 M: c-type stack-size size>> cell align ;
177 GENERIC: byte-length ( seq -- n ) flushable
179 M: byte-array byte-length length ;
181 : c-getter ( name -- quot )
183 [ "Cannot read struct fields with this type" throw ]
186 : c-setter ( name -- quot )
188 [ "Cannot write struct fields with this type" throw ]
191 : <c-array> ( n type -- array )
192 heap-size * <byte-array> ; inline
194 : <c-object> ( type -- array )
195 1 swap <c-array> ; inline
197 : malloc-array ( n type -- alien )
198 heap-size calloc ; inline
200 : malloc-object ( type -- alien )
201 1 swap malloc-array ; inline
203 : malloc-byte-array ( byte-array -- alien )
204 dup length [ nip malloc dup ] 2keep memcpy ;
206 : memory>byte-array ( alien len -- byte-array )
207 [ nip (byte-array) dup ] 2keep memcpy ;
209 : byte-array>memory ( byte-array base -- )
210 swap dup length memcpy ;
212 : array-accessor ( type quot -- def )
214 \ swap , [ heap-size , [ * >fixnum ] % ] [ % ] bi*
217 : typedef ( old new -- ) c-types get set-at ;
219 TUPLE: long-long-type < c-type ;
221 : <long-long-type> ( -- type )
222 long-long-type new-c-type ;
224 M: long-long-type unbox-parameter ( n type -- )
225 c-type-unboxer %unbox-long-long ;
227 M: long-long-type unbox-return ( type -- )
228 f swap unbox-parameter ;
230 M: long-long-type box-parameter ( n type -- )
231 c-type-boxer %box-long-long ;
233 M: long-long-type box-return ( type -- )
234 f swap box-parameter ;
236 : define-deref ( name -- )
237 [ CHAR: * prefix "alien.c-types" create ] [ c-getter 0 prefix ] bi
238 (( c-ptr -- value )) define-inline ;
240 : define-out ( name -- )
241 [ "alien.c-types" constructor-word ]
242 [ dup c-setter '[ _ <c-object> [ 0 @ ] keep ] ] bi
243 (( value -- c-ptr )) define-inline ;
245 : c-bool> ( int -- ? )
248 : define-primitive-type ( type name -- )
254 : expand-constants ( c-type -- c-type' )
259 def>> { } swap with-datastack first
265 : malloc-file-contents ( path -- alien len )
266 binary file-contents dup malloc-byte-array swap length ;
268 : if-void ( type true false -- )
269 pick "void" = [ drop nip call ] [ nip call ] if ; inline
277 "longlong" "ulonglong"
285 [ alien-cell ] >>getter
286 [ set-alien-cell ] >>setter
287 bootstrap-cell >>size
288 bootstrap-cell >>align
290 "alien_offset" >>unboxer
291 "void*" define-primitive-type
295 [ alien-signed-8 ] >>getter
296 [ set-alien-signed-8 ] >>setter
299 "box_signed_8" >>boxer
300 "to_signed_8" >>unboxer
301 "longlong" define-primitive-type
305 [ alien-unsigned-8 ] >>getter
306 [ set-alien-unsigned-8 ] >>setter
309 "box_unsigned_8" >>boxer
310 "to_unsigned_8" >>unboxer
311 "ulonglong" define-primitive-type
315 [ alien-signed-cell ] >>getter
316 [ set-alien-signed-cell ] >>setter
317 bootstrap-cell >>size
318 bootstrap-cell >>align
319 "box_signed_cell" >>boxer
320 "to_fixnum" >>unboxer
321 "long" define-primitive-type
325 [ alien-unsigned-cell ] >>getter
326 [ set-alien-unsigned-cell ] >>setter
327 bootstrap-cell >>size
328 bootstrap-cell >>align
329 "box_unsigned_cell" >>boxer
331 "ulong" define-primitive-type
335 [ alien-signed-4 ] >>getter
336 [ set-alien-signed-4 ] >>setter
339 "box_signed_4" >>boxer
340 "to_fixnum" >>unboxer
341 "int" define-primitive-type
345 [ alien-unsigned-4 ] >>getter
346 [ set-alien-unsigned-4 ] >>setter
349 "box_unsigned_4" >>boxer
351 "uint" define-primitive-type
355 [ alien-signed-2 ] >>getter
356 [ set-alien-signed-2 ] >>setter
359 "box_signed_2" >>boxer
360 "to_fixnum" >>unboxer
361 "short" define-primitive-type
365 [ alien-unsigned-2 ] >>getter
366 [ set-alien-unsigned-2 ] >>setter
369 "box_unsigned_2" >>boxer
371 "ushort" define-primitive-type
375 [ alien-signed-1 ] >>getter
376 [ set-alien-signed-1 ] >>setter
379 "box_signed_1" >>boxer
380 "to_fixnum" >>unboxer
381 "char" define-primitive-type
385 [ alien-unsigned-1 ] >>getter
386 [ set-alien-unsigned-1 ] >>setter
389 "box_unsigned_1" >>boxer
391 "uchar" define-primitive-type
394 [ alien-unsigned-4 zero? not ] >>getter
395 [ [ 1 0 ? ] 2dip set-alien-unsigned-4 ] >>setter
398 "box_boolean" >>boxer
399 "to_boolean" >>unboxer
400 "bool" define-primitive-type
404 [ alien-float ] >>getter
405 [ [ >float ] 2dip set-alien-float ] >>setter
410 single-float-regs >>reg-class
411 [ >float ] >>unboxer-quot
412 "float" define-primitive-type
416 [ alien-double ] >>getter
417 [ [ >float ] 2dip set-alien-double ] >>setter
421 "to_double" >>unboxer
422 double-float-regs >>reg-class
423 [ >float ] >>unboxer-quot
424 "double" define-primitive-type
426 "long" "ptrdiff_t" typedef
427 "long" "intptr_t" typedef
428 "ulong" "size_t" typedef
429 ] with-compilation-unit