46 lines
1.2 KiB
Factor
Executable File
46 lines
1.2 KiB
Factor
Executable File
USING: words kernel sequences locals locals.parser
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locals.definitions accessors parser namespaces continuations
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summary definitions generalizations arrays ;
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IN: descriptive
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ERROR: descriptive-error args underlying word ;
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M: descriptive-error summary
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word>> "The " swap name>> " word encountered an error."
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3append ;
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<PRIVATE
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: rethrower ( word inputs -- quot )
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[ length ] keep [ [ narray ] dip swap 2array flip ] 2curry
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[ 2 ndip descriptive-error ] 2curry ;
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: [descriptive] ( word def -- newdef )
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swap dup "declared-effect" word-prop in>> rethrower
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[ recover ] 2curry ;
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PRIVATE>
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: define-descriptive ( word def -- )
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[ "descriptive-definition" set-word-prop ]
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[ dupd [descriptive] define ] 2bi ;
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: DESCRIPTIVE:
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(:) define-descriptive ; parsing
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PREDICATE: descriptive < word
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"descriptive-definition" word-prop ;
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M: descriptive definer drop \ DESCRIPTIVE: \ ; ;
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M: descriptive definition
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"descriptive-definition" word-prop ;
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: DESCRIPTIVE::
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(::) define-descriptive ; parsing
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INTERSECTION: descriptive-lambda descriptive lambda-word ;
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M: descriptive-lambda definer drop \ DESCRIPTIVE:: \ ; ;
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M: descriptive-lambda definition
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"lambda" word-prop body>> ;
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