2005-04-09 18:30:46 -04:00
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! Copyright (C) 2004, 2005 Slava Pestov.
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! See http://factor.sf.net/license.txt for BSD license.
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IN: alien
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2005-04-09 22:43:41 -04:00
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USING: assembler compiler errors generic hashtables kernel lists
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2005-05-04 22:34:55 -04:00
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math namespaces parser sequences strings words ;
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2005-04-09 18:30:46 -04:00
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! Some code for interfacing with C structures.
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: define-getter ( offset type name -- )
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#! Define a word with stack effect ( alien -- obj ) in the
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#! current 'in' vocabulary.
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create-in >r
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[ "getter" get ] bind cons r> swap define-compound ;
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: define-setter ( offset type name -- )
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#! Define a word with stack effect ( obj alien -- ) in the
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#! current 'in' vocabulary.
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2005-05-18 16:26:22 -04:00
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"set-" swap append create-in >r
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2005-04-09 18:30:46 -04:00
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[ "setter" get ] bind cons r> swap define-compound ;
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: define-field ( offset type name -- offset )
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>r c-type dup >r [ "align" get ] bind align r> r>
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2005-05-18 16:26:22 -04:00
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"struct-name" get swap "-" swap append3
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2005-04-09 18:30:46 -04:00
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( offset type name -- )
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3dup define-getter 3dup define-setter
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drop [ "width" get ] bind + ;
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: define-member ( max type -- max )
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c-type [ "width" get ] bind max ;
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: define-struct-type ( width -- )
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#! Define inline and pointer type for the struct. Pointer
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#! type is exactly like void*.
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2005-04-16 00:23:27 -04:00
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[
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"width" set
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2005-04-17 18:34:09 -04:00
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cell "align" set
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2005-04-16 00:23:27 -04:00
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[ swap <displaced-alien> ] "getter" set
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2005-05-20 23:52:31 -04:00
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]
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"struct-name" get define-c-type
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"struct-name" get "in" get init-c-type ;
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