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# frozen_string_literal: true
unless defined?(::JSON::JSON_LOADED) and ::JSON::JSON_LOADED
require 'json'
end
class Complex
# See #as_json.
def self.json_create(object)
Complex(object['r'], object['i'])
end
# Methods <tt>Complex#as_json</tt> and +Complex.json_create+ may be used
# to serialize and deserialize a \Complex object;
# see Marshal[https://docs.ruby-lang.org/en/master/Marshal.html].
#
# \Method <tt>Complex#as_json</tt> serializes +self+,
# returning a 2-element hash representing +self+:
#
# require 'json/add/complex'
# x = Complex(2).as_json # => {"json_class"=>"Complex", "r"=>2, "i"=>0}
# y = Complex(2.0, 4).as_json # => {"json_class"=>"Complex", "r"=>2.0, "i"=>4}
#
# \Method +JSON.create+ deserializes such a hash, returning a \Complex object:
#
# Complex.json_create(x) # => (2+0i)
# Complex.json_create(y) # => (2.0+4i)
#
def as_json(*)
{
JSON.create_id => self.class.name,
'r' => real,
'i' => imag,
}
end
# Returns a JSON string representing +self+:
#
# require 'json/add/complex'
# puts Complex(2).to_json
# puts Complex(2.0, 4).to_json
#
# Output:
#
# {"json_class":"Complex","r":2,"i":0}
# {"json_class":"Complex","r":2.0,"i":4}
#
def to_json(*args)
as_json.to_json(*args)
end
end
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