1 ! (c)2010 Joe Groff, Erik Charlebois bsd license
2 USING: accessors alien.c-types arrays classes.singleton combinators
3 delegate fry generic.parser kernel math parser sequences words ;
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 )
14 M: integer enum>number ;
16 : number>enum ( number enum-c-type -- enum )
17 c-type-boxer-quot call( x -- y ) ; inline
20 : enum-boxer ( members -- quot )
21 [ first2 swap '[ _ ] 2array ]
22 { } map-as [ ] suffix '[ _ case ] ;
25 M: enum-c-type c-type-boxed-class drop object ;
26 M: enum-c-type c-type-boxer-quot members>> enum-boxer ;
27 M: enum-c-type c-type-unboxer-quot drop [ enum>number ] ;
28 M: enum-c-type c-type-setter
29 [ enum>number ] swap base-type>> c-type-setter '[ _ 2dip @ ] ;
33 : define-enum>number ( class value -- )
34 [ \ enum>number create-method-in ]
35 [ '[ drop _ ] ] bi* define ;
37 : define-enum-members ( member-names -- )
39 [ first define-singleton-class ]
40 [ first2 define-enum>number ] bi
43 : define-enum-constructor ( word -- )
44 [ name>> "<" ">" surround create-in ] keep
45 [ number>enum ] curry (( enum -- number )) 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? ;