28 lines
748 B
Ruby
28 lines
748 B
Ruby
#frozen_string_literal: false
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unless defined?(::JSON::JSON_LOADED) and ::JSON::JSON_LOADED
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require 'json'
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end
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class Rational
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# Deserializes JSON string by converting numerator value <tt>n</tt>,
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# denominator value <tt>d</tt>, to a Rational object.
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def self.json_create(object)
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Rational(object['n'], object['d'])
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end
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# Returns a hash, that will be turned into a JSON object and represent this
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# object.
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def as_json(*)
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{
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JSON.create_id => self.class.name,
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'n' => numerator,
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'd' => denominator,
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}
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end
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# Stores class name (Rational) along with numerator value <tt>n</tt> and denominator value <tt>d</tt> as JSON string
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def to_json(*args)
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as_json.to_json(*args)
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end
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end
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