53 lines
1.2 KiB
Ruby
53 lines
1.2 KiB
Ruby
# frozen_string_literal: true
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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 Symbol
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# Methods <tt>Symbol#as_json</tt> and +Symbol.json_create+ may be used
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# to serialize and deserialize a \Symbol object;
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# see Marshal[https://docs.ruby-lang.org/en/master/Marshal.html].
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#
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# \Method <tt>Symbol#as_json</tt> serializes +self+,
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# returning a 2-element hash representing +self+:
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#
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# require 'json/add/symbol'
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# x = :foo.as_json
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# # => {"json_class"=>"Symbol", "s"=>"foo"}
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#
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# \Method +JSON.create+ deserializes such a hash, returning a \Symbol object:
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#
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# Symbol.json_create(x) # => :foo
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#
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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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's' => to_s,
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}
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end
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# Returns a JSON string representing +self+:
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#
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# require 'json/add/symbol'
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# puts :foo.to_json
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#
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# Output:
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#
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# # {"json_class":"Symbol","s":"foo"}
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#
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def to_json(state = nil, *a)
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state = ::JSON::State.from_state(state)
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if state.strict?
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super
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else
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as_json.to_json(state, *a)
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end
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end
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# See #as_json.
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def self.json_create(o)
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o['s'].to_sym
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end
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end
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