Class: Struct

Inherits:
Object
  • Object
show all
Defined in:
lib/json/add/struct.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.json_create(object) ⇒ Object

See #as_json.



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# File 'lib/json/add/struct.rb', line 9

def self.json_create(object)
  new(*object['v'])
end

Instance Method Details

#as_json ⇒ Object

Methods Struct#as_json and Struct.json_create may be used to serialize and deserialize a Struct object; see 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)
# => #<struct Struct::Customer name=nil, address=nil, zip=nil>



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# File 'lib/json/add/struct.rb', line 30

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

#to_json(*args) ⇒ Object

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}}



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# File 'lib/json/add/struct.rb', line 49

def to_json(*args)
  as_json.to_json(*args)
end