1 ! (c)2010 Joe Groff, Erik Charlebois bsd license
2 USING: accessors alien.c-types arrays combinators delegate fry
3 generic.parser kernel macros math parser sequences words words.symbol ;
7 TUPLE: enum-c-type base-type members ;
8 C: <enum-c-type> enum-c-type
9 CONSULT: c-type-protocol enum-c-type
13 GENERIC: enum>number ( enum -- number ) foldable
14 M: integer enum>number ;
15 M: symbol enum>number "enum-value" word-prop ;
18 : enum-boxer ( members -- quot )
19 [ first2 swap '[ _ ] 2array ]
20 { } map-as [ ] suffix '[ _ case ] ;
23 MACRO: number>enum ( enum-c-type -- )
24 c-type members>> enum-boxer ;
26 M: enum-c-type c-type-boxed-class drop object ;
27 M: enum-c-type c-type-boxer-quot members>> enum-boxer ;
28 M: enum-c-type c-type-unboxer-quot drop [ enum>number ] ;
29 M: enum-c-type c-type-setter
30 [ enum>number ] swap base-type>> c-type-setter '[ _ 2dip @ ] ;
34 : define-enum-value ( class value -- )
35 "enum-value" set-word-prop ;
37 : define-enum-members ( member-names -- )
39 [ first define-symbol ]
40 [ first2 define-enum-value ] bi
43 : define-enum-constructor ( word -- )
44 [ name>> "<" ">" surround create-in ] keep
45 [ number>enum ] curry (( number -- enum )) define-inline ;
49 : define-enum ( word base-type members -- )
50 [ dup define-enum-constructor ] 2dip
51 dup define-enum-members
52 <enum-c-type> swap typedef ;
54 PREDICATE: enum-c-type-word < c-type-word
55 "c-type" word-prop enum-c-type? ;