Class: ActiveSupport::InheritableOptions

Inherits:
OrderedOptions show all
Defined in:
activesupport/lib/active_support/ordered_options.rb

Overview

InheritableOptions provides a constructor to build an OrderedOptions hash inherited from the another hash.

Use this if you already have some hash and you want to create a new one based on it.

h = ActiveSupport::InheritableOptions.new({ girl: 'Mary', boy: 'John' })
h.girl # => 'Mary'
h.boy  # => 'John'

Direct Known Subclasses

Configurable::Configuration

Instance Method Summary collapse

Methods inherited from OrderedOptions

#[], #[]=, #method_missing, #respond_to_missing?

Methods inherited from Hash

#as_json, #assert_valid_keys, #deep_dup, #deep_merge, #deep_merge!, #deep_stringify_keys, #deep_stringify_keys!, #deep_symbolize_keys, #deep_symbolize_keys!, #deep_transform_keys, #deep_transform_keys!, #encode_json, #except, #except!, #extract!, #extractable_options?, from_trusted_xml, from_xml, #reverse_merge, #reverse_merge!, #slice, #slice!, #stringify_keys, #stringify_keys!, #symbolize_keys, #symbolize_keys!, #to_param, #to_xml, #transform_keys, #transform_keys!, #with_indifferent_access

Constructor Details

#initialize(parent = nil) ⇒ InheritableOptions

Returns a new instance of InheritableOptions.



52
53
54
55
56
57
58
59
60
61
 
# File 'activesupport/lib/active_support/ordered_options.rb', line 52

def initialize(parent = nil)
  if parent.kind_of?(OrderedOptions)
    # use the faster _get when dealing with OrderedOptions
    super() { |h,k| parent._get(k) }
  elsif parent
    super() { |h,k| parent[k] }
  else
    super()
  end
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class ActiveSupport::OrderedOptions

Instance Method Details

#inheritable_copy ⇒ Object 



63
64
65
 
# File 'activesupport/lib/active_support/ordered_options.rb', line 63

def inheritable_copy
  self.class.new(self)
end