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