90 lines
1.9 KiB
Ruby
90 lines
1.9 KiB
Ruby
# Augments all parslet atoms with an accept method that will call back
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# to the visitor given.
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#
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module Parslet::Atoms
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class Base
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def accept(visitor)
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raise NotImplementedError, "No #accept method on #{self.class.name}."
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end
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end
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class Str
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# Call back visitors #visit_str method. See parslet/export for an example.
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#
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def accept(visitor)
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visitor.visit_str(str)
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end
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end
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class Entity
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# Call back visitors #visit_entity method. See parslet/export for an
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# example.
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#
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def accept(visitor)
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visitor.visit_entity(name, block)
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end
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end
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class Named
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# Call back visitors #visit_named method. See parslet/export for an
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# example.
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#
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def accept(visitor)
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visitor.visit_named(name, parslet)
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end
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end
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class Sequence
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# Call back visitors #visit_sequence method. See parslet/export for an
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# example.
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#
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def accept(visitor)
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visitor.visit_sequence(parslets)
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end
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end
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class Repetition
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# Call back visitors #visit_repetition method. See parslet/export for an
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# example.
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#
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def accept(visitor)
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visitor.visit_repetition(@tag, min, max, parslet)
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end
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end
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class Alternative
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# Call back visitors #visit_alternative method. See parslet/export for an
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# example.
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#
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def accept(visitor)
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visitor.visit_alternative(alternatives)
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end
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end
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class Lookahead
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# Call back visitors #visit_lookahead method. See parslet/export for an
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# example.
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#
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def accept(visitor)
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visitor.visit_lookahead(positive, bound_parslet)
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end
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end
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class Re
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# Call back visitors #visit_re method. See parslet/export for an example.
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#
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def accept(visitor)
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visitor.visit_re(match)
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end
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end
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end
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class Parslet::Parser
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# Call back visitors #visit_parser method.
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#
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def accept(visitor)
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visitor.visit_parser(root)
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end
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end
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