1 ! Copyright (C) 2008, 2010 Slava Pestov, Doug Coleman, Joe Groff.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: accessors alien alien.c-types alien.enums alien.libraries
4 arrays classes classes.parser combinators
5 combinators.short-circuit compiler.units effects kernel lexer
6 math namespaces parser sequences splitting summary vocabs.parser
10 SYMBOL: current-library
14 ERROR: bad-array-type ;
16 : parse-array-type ( name -- c-type )
18 [ [ "]" ?tail [ bad-array-type ] unless parse-datum ] map ]
22 : (parse-c-type) ( string -- type )
24 { [ "*" ?tail ] [ (parse-c-type) <pointer> ] }
25 { [ CHAR: ] over member? ] [ parse-array-type ] }
26 { [ dup search ] [ parse-word ] }
30 : c-array? ( c-type -- ? )
31 { [ array? ] [ first { [ c-type-word? ] [ pointer? ] } 1|| ] } 1&& ;
33 : valid-c-type? ( c-type -- ? )
34 { [ c-array? ] [ c-type-word? ] [ pointer? ] [ void? ] } 1|| ;
36 : parse-c-type ( string -- type )
37 (parse-c-type) dup valid-c-type? [ no-c-type ] unless ;
39 : scan-c-type ( -- c-type )
41 { [ dup "{" = ] [ drop \ } parse-until >array ] }
42 { [ dup "pointer:" = ] [ drop scan-c-type <pointer> ] }
46 : reset-c-type ( word -- )
47 dup "struct-size" word-prop [
48 dup [ forget-class ] [ "struct-size" remove-word-prop ] bi
56 ERROR: *-in-c-type-name name ;
58 M: *-in-c-type-name summary
60 "Cannot define a C type “"
61 "” that ends with an asterisk (*)" surround ;
63 : validate-c-type-name ( name -- name )
65 [ *-in-c-type-name ] when ;
67 : (CREATE-C-TYPE) ( name -- word )
68 validate-c-type-name current-vocab create-word {
76 : CREATE-C-TYPE ( -- word )
77 scan-token (CREATE-C-TYPE) ;
81 : parse-pointers ( type name -- type' name' )
83 [ [ <pointer> ] dip parse-pointers ] when ;
85 : next-enum-member ( members name value -- members value' )
87 [ [ 2array suffix! ] [ enum>number 1 + ] bi ] 2bi ;
89 : parse-enum-name ( -- word )
90 CREATE-C-TYPE dup save-location ;
92 : parse-enum-base-type ( -- base-type token )
94 [ drop scan-object scan-token ]
97 : parse-enum-member ( members name value -- members value' )
99 [ 2drop scan-token create-class-in scan-object next-enum-member "}" expect ]
100 [ [ create-class-in ] dip next-enum-member ] if ;
102 : parse-enum-members ( members counter token -- members )
104 [ swap parse-enum-member scan-token parse-enum-members ] [ 2drop ] if ;
108 : parse-enum ( -- name base-type members )
111 [ V{ } clone 0 ] dip parse-enum-members ;
113 : scan-function-name ( -- return function )
114 scan-c-type scan-token parse-pointers ;
116 :: scan-c-args ( -- types names )
119 "(" expect scan-token [ dup ")" = ] [
121 scan-token "," ?tail drop
122 parse-pointers [ types push ] [ names push ] bi*
124 ] until drop types names [ >array ] bi@ ;
126 : function-effect ( names return -- effect )
127 [ { } ] [ c-type-string 1array ] if-void <effect> ;
129 : create-function ( name -- word )
130 create-word-in dup reset-generic ;
132 :: (make-function) ( return function library types names -- quot effect )
133 return library function types '[ _ _ _ _ f alien-invoke ]
134 names return function-effect ;
136 :: make-function ( return function library types names -- word quot effect )
137 function create-function
138 return function library types names (make-function) ;
140 : (FUNCTION:) ( -- return function library types names )
141 scan-function-name current-library get scan-c-args ;
143 : callback-quot ( return types abi -- quot )
144 '[ [ _ _ _ ] dip alien-callback ] ;
146 :: make-callback-type ( return function library types names -- word quot effect )
147 function create-function :> type-word
148 void* type-word typedef
149 type-word names return function-effect "callback-effect" set-word-prop
150 type-word library "callback-library" set-word-prop
151 type-word return types library library-abi callback-quot ( quot -- alien ) ;
153 : (CALLBACK:) ( -- word quot effect )
154 (FUNCTION:) make-callback-type ;
156 : global-quot ( type word -- quot )
157 swap [ name>> current-library get ] dip
158 '[ _ _ address-of 0 _ alien-value ] ;
160 : set-global-quot ( type word -- quot )
161 swap [ name>> current-library get ] dip
162 '[ _ _ address-of 0 _ set-alien-value ] ;
164 : define-global-getter ( type word -- )
165 [ nip ] [ global-quot ] 2bi ( -- value ) define-declared ;
167 : define-global-setter ( type word -- )
168 [ nip name>> "set-" prepend create-word-in ]
169 [ set-global-quot ] 2bi ( obj -- ) define-declared ;
171 : define-global ( type word -- )
172 [ define-global-getter ] [ define-global-setter ] 2bi ;