119 lines
3.7 KiB
Factor
119 lines
3.7 KiB
Factor
! Copyright (C) 2008, 2009 Slava Pestov, Doug Coleman.
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! See http://factorcode.org/license.txt for BSD license.
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USING: accessors alien alien.c-types alien.parser
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alien.libraries arrays assocs classes combinators
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combinators.short-circuit compiler.units effects grouping
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kernel parser sequences splitting words fry locals lexer
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namespaces summary math vocabs.parser ;
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IN: alien.parser
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: parse-c-type-name ( name -- word )
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dup search [ ] [ no-word ] ?if ;
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: parse-array-type ( name -- dims c-type )
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"[" split unclip
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[ [ "]" ?tail drop parse-word ] map ] dip ;
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: (parse-c-type) ( string -- type )
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{
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{ [ dup "void" = ] [ drop void ] }
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{ [ CHAR: ] over member? ] [ parse-array-type parse-c-type-name prefix ] }
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{ [ dup search ] [ parse-c-type-name ] }
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{ [ "**" ?tail ] [ drop void* ] }
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{ [ "*" ?tail ] [ parse-c-type-name resolve-pointer-type ] }
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[ dup search [ ] [ no-word ] ?if ]
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} cond ;
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: valid-c-type? ( c-type -- ? )
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{ [ array? ] [ c-type-name? ] [ void? ] } 1|| ;
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: parse-c-type ( string -- type )
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(parse-c-type) dup valid-c-type? [ no-c-type ] unless ;
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: scan-c-type ( -- c-type )
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scan dup "{" =
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[ drop \ } parse-until >array ]
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[ parse-c-type ] if ;
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: reset-c-type ( word -- )
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dup "struct-size" word-prop
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[ dup [ forget-class ] [ { "struct-size" } reset-props ] bi ] when
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{
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"c-type"
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"pointer-c-type"
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"callback-effect"
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"callback-library"
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} reset-props ;
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: CREATE-C-TYPE ( -- word )
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scan current-vocab create {
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[ fake-definition ]
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[ set-word ]
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[ reset-c-type ]
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[ ]
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} cleave ;
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: normalize-c-arg ( type name -- type' name' )
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[ length ]
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[
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[ CHAR: * = ] trim-head
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[ length - CHAR: * <array> append ] keep
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] bi
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[ parse-c-type ] dip ;
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: parse-arglist ( parameters return -- types effect )
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[
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2 group [ first2 normalize-c-arg 2array ] map
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unzip [ "," ?tail drop ] map
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]
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[ [ { } ] [ 1array ] if-void ]
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bi* <effect> ;
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: function-quot ( return library function types -- quot )
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'[ _ _ _ _ alien-invoke ] ;
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:: make-function ( return! library function! parameters -- word quot effect )
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return function normalize-c-arg function! return!
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function create-in dup reset-generic
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return library function
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parameters return parse-arglist [ function-quot ] dip ;
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: parse-arg-tokens ( -- tokens )
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";" parse-tokens [ "()" subseq? not ] filter ;
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: (FUNCTION:) ( -- word quot effect )
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scan "c-library" get scan parse-arg-tokens make-function ;
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: define-function ( return library function parameters -- )
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make-function define-declared ;
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: callback-quot ( return types abi -- quot )
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[ [ ] 3curry dip alien-callback ] 3curry ;
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: library-abi ( lib -- abi )
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library [ abi>> ] [ "cdecl" ] if* ;
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:: make-callback-type ( lib return! type-name! parameters -- word quot effect )
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return type-name normalize-c-arg type-name! return!
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type-name current-vocab create :> type-word
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type-word [ reset-generic ] [ reset-c-type ] bi
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void* type-word typedef
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parameters return parse-arglist :> callback-effect :> types
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type-word callback-effect "callback-effect" set-word-prop
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type-word lib "callback-library" set-word-prop
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type-word return types lib library-abi callback-quot (( quot -- alien )) ;
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: (CALLBACK:) ( -- word quot effect )
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"c-library" get
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scan scan parse-arg-tokens make-callback-type ;
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PREDICATE: alien-function-word < word
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def>> {
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[ length 5 = ]
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[ last \ alien-invoke eq? ]
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} 1&& ;
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PREDICATE: alien-callback-type-word < typedef-word
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"callback-effect" word-prop ;
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