#frozen_string_literal: false unless defined?(::JSON::JSON_LOADED) and ::JSON::JSON_LOADED require 'json' end class Struct # See #as_json. def self.json_create(object) new(*object['v']) end # Methods Struct#as_json and +Struct.json_create+ may be used # to serialize and deserialize a \Struct object; # see Marshal[rdoc-ref:Marshal]. # # \Method Struct#as_json serializes +self+, # returning a 2-element hash representing +self+: # # require 'json/add/struct' # Customer = Struct.new('Customer', :name, :address, :zip) # x = Struct::Customer.new.as_json # # => {"json_class"=>"Struct::Customer", "v"=>[nil, nil, nil]} # # \Method +JSON.create+ deserializes such a hash, returning a \Struct object: # # Struct::Customer.json_create(x) # # => # # def as_json(*) klass = self.class.name klass.to_s.empty? and raise JSON::JSONError, "Only named structs are supported!" { JSON.create_id => klass, 'v' => values, } end # Returns a JSON string representing +self+: # # require 'json/add/struct' # Customer = Struct.new('Customer', :name, :address, :zip) # puts Struct::Customer.new.to_json # # Output: # # {"json_class":"Struct","t":{'name':'Rowdy',"age":null}} # def to_json(*args) as_json.to_json(*args) end end