30 lines
1.1 KiB
Factor
30 lines
1.1 KiB
Factor
USING: generic help.markup help.syntax kernel kernel.private
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namespaces sequences words arrays layouts help effects math
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classes.private classes compiler.units ;
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IN: classes.predicate
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ARTICLE: "predicates" "Predicate classes"
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"Predicate classes allow fine-grained control over method dispatch."
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{ $subsections
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POSTPONE: PREDICATE:
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define-predicate-class
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}
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"The set of predicate classes is a class:"
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{ $subsections
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predicate-class
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predicate-class?
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} ;
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ABOUT: "predicates"
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HELP: define-predicate-class
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{ $values { "class" class } { "superclass" class } { "definition" { $quotation "( superclass -- ? )" } } }
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{ $description "Defines a predicate class. This is the run time equivalent of " { $link POSTPONE: PREDICATE: } "." }
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{ $notes "This word must be called from inside " { $link with-compilation-unit } "." }
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{ $side-effects "class" } ;
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{ predicate-class define-predicate-class POSTPONE: PREDICATE: } related-words
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HELP: predicate-class
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{ $class-description "The class of predicate class words, defined by " { $link POSTPONE: PREDICATE: } " and documented in " { $link "predicates" } "." } ;
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