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@fileI"%ext/json/lib/json/add/ostruct.rb;T:0@omit_headings_from_table_of_contents_below0o;;[o:RDoc::Markup::Paragraph;[	I"KAn OpenStruct is a data structure, similar to a Hash, that allows the ;TI"Pdefinition of arbitrary attributes with their accompanying values. This is ;TI"Qaccomplished by using Ruby's metaprogramming to define methods on the class ;TI"itself.;To:RDoc::Markup::BlankLineS:RDoc::Markup::Heading:
leveli:	textI"
Examples;T@o:RDoc::Markup::Verbatim;[I"require "ostruct"
;TI"
;TI"person = OpenStruct.new
;TI" person.name = "John Smith"
;TI"person.age  = 70
;TI"
;TI"(person.name      # => "John Smith"
;TI"person.age       # => 70
;TI"person.address   # => nil
;T:@format0o;;[I"PAn OpenStruct employs a Hash internally to store the attributes and values ;TI"*and can even be initialized with one:;T@o;;[I"Qaustralia = OpenStruct.new(:country => "Australia", :capital => "Canberra")
;TI"B  # => #<OpenStruct country="Australia", capital="Canberra">
;T;0o;;[	I"MHash keys with spaces or characters that could normally not be used for ;TI"Nmethod calls (e.g. <code>()[]*</code>) will not be immediately available ;TI"Oon the OpenStruct object as a method for retrieval or assignment, but can ;TI"5still be reached through the Object#send method.;T@o;;[I"?measurements = OpenStruct.new("length (in inches)" => 24)
;TI"7measurements.send("length (in inches)")   # => 24
;TI"
;TI"0message = OpenStruct.new(:queued? => true)
;TI"9message.queued?                           # => true
;TI"%message.send("queued?=", false)
;TI":message.queued?                           # => false
;T;0o;;[I"IRemoving the presence of an attribute requires the execution of the ;TI"Idelete_field method as setting the property value to +nil+ will not ;TI"remove the attribute.;T@o;;[I"Kfirst_pet  = OpenStruct.new(:name => "Rowdy", :owner => "John Smith")
;TI"3second_pet = OpenStruct.new(:name => "Rowdy")
;TI"
;TI"first_pet.owner = nil
;TI"Jfirst_pet                 # => #<OpenStruct name="Rowdy", owner=nil>
;TI"*first_pet == second_pet   # => false
;TI"
;TI"$first_pet.delete_field(:owner)
;TI"?first_pet                 # => #<OpenStruct name="Rowdy">
;TI")first_pet == second_pet   # => true
;T;0S;
;i;I"Implementation;T@o;;[I"RAn OpenStruct utilizes Ruby's method lookup structure to find and define the ;TI"Pnecessary methods for properties. This is accomplished through the methods ;TI"0method_missing and define_singleton_method.;T@o;;[I"SThis should be a consideration if there is a concern about the performance of ;TI"Qthe objects that are created, as there is much more overhead in the setting ;TI">of these properties compared to using a Hash or a Struct.;T;	I"lib/ostruct.rb;T;
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instance;T[[;[[I"==;T@g[I"[];F@g[I"[]=;F@g[I"as_json;F@d[I"delete_field;F@g[I"dig;F@g[I"each_pair;F@g[I"	eql?;F@g[I"freeze;F@g[I"	hash;F@g[I"inspect;F@g[I"marshal_dump;F@g[I"marshal_load;F@g[I"	to_h;F@g[I"to_json;F@d[I"	to_s;T@g[;[[;[[[U:RDoc::Context::Section[i0o;;[;	0;
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