36 lines
895 B
Factor
36 lines
895 B
Factor
! Copyright (C) 2007, 2010 Slava Pestov.
|
|
! See http://factorcode.org/license.txt for BSD license.
|
|
USING: parser kernel sequences words effects combinators assocs
|
|
definitions quotations namespaces memoize accessors
|
|
compiler.units ;
|
|
IN: macros
|
|
|
|
<PRIVATE
|
|
|
|
: real-macro-effect ( effect -- effect' )
|
|
in>> { "quot" } <effect> ;
|
|
|
|
PRIVATE>
|
|
|
|
: define-macro ( word definition effect -- )
|
|
real-macro-effect {
|
|
[ [ memoize-quot [ call ] append ] keep define-declared ]
|
|
[ drop "macro" set-word-prop ]
|
|
[ 2drop changed-effect ]
|
|
} 3cleave ;
|
|
|
|
SYNTAX: MACRO: (:) define-macro ;
|
|
|
|
PREDICATE: macro < word "macro" word-prop >boolean ;
|
|
|
|
M: macro make-inline cannot-be-inline ;
|
|
|
|
M: macro definer drop \ MACRO: \ ; ;
|
|
|
|
M: macro definition "macro" word-prop ;
|
|
|
|
M: macro reset-word
|
|
[ call-next-method ] [ f "macro" set-word-prop ] bi ;
|
|
|
|
M: macro always-bump-effect-counter? drop t ;
|