factor/core/alien/syntax/syntax.factor

75 lines
2.1 KiB
Factor
Executable File

! Copyright (C) 2005, 2008 Slava Pestov, Alex Chapman.
! See http://factorcode.org/license.txt for BSD license.
USING: arrays alien alien.c-types alien.structs alien.arrays
alien.strings kernel math namespaces parser sequences words
quotations math.parser splitting effects prettyprint
prettyprint.sections prettyprint.backend assocs combinators ;
IN: alien.syntax
<PRIVATE
: parse-arglist ( return seq -- types effect )
2 group dup keys swap values [ "," ?tail drop ] map
rot dup "void" = [ drop { } ] [ 1array ] if <effect> ;
: function-quot ( type lib func types -- quot )
[ alien-invoke ] 2curry 2curry ;
: define-function ( return library function parameters -- )
>r pick r> parse-arglist
pick create-in dup reset-generic
>r >r function-quot r> r>
-rot define-declared ;
PRIVATE>
: indirect-quot ( function-ptr-quot return types abi -- quot )
[ alien-indirect ] 3curry compose ;
: define-indirect ( abi return function-ptr-quot function-name parameters -- )
>r pick r> parse-arglist
rot create-in dup reset-generic
>r >r swapd roll indirect-quot r> r>
-rot define-declared ;
: DLL" lexer get skip-blank parse-string dlopen parsed ; parsing
: ALIEN: scan string>number <alien> parsed ; parsing
: LIBRARY: scan "c-library" set ; parsing
: FUNCTION:
scan "c-library" get scan ";" parse-tokens
[ "()" subseq? not ] filter
define-function ; parsing
: TYPEDEF:
scan scan typedef ; parsing
: TYPEDEF-IF:
scan-word execute scan scan rot [ typedef ] [ 2drop ] if ; parsing
: C-STRUCT:
scan in get
parse-definition
>r 2dup r> define-struct-early
define-struct ; parsing
: C-UNION:
scan in get parse-definition define-union ; parsing
: C-ENUM:
";" parse-tokens
dup length
[ >r create-in r> 1quotation define ] 2each ;
parsing
M: alien pprint*
{
{ [ dup expired? ] [ drop "( alien expired )" text ] }
{ [ dup pinned-c-ptr? not ] [ drop "( displaced alien )" text ] }
[ \ ALIEN: [ alien-address pprint* ] pprint-prefix ]
} cond ;
M: dll pprint* dll-path dup "DLL\" " "\"" pprint-string ;