Module: Registry::ClassMethods

Defined in:
lib/registry.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#registry_key ⇒ Object (readonly)

Returns the value of attribute registry_key.



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# File 'lib/registry.rb', line 78

def registry_key
  @registry_key
end

#registry_keys ⇒ Object (readonly)

Returns the value of attribute registry_keys.



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# File 'lib/registry.rb', line 78

def registry_keys
  @registry_keys
end

Instance Method Details

#[](key) ⇒ Object 



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# File 'lib/registry.rb', line 105

def [](key)
  registry[key && key.to_sym] || fail(MSGS[:unknown] % [key, registry.keys.sort])
end

#lookup(key) ⇒ Object 



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# File 'lib/registry.rb', line 101

def lookup(key)
  registered?(key) ? self[key] : registries[key]
end

#register(*args) ⇒ Object 



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# File 'lib/registry.rb', line 80

def register(*args)
  obj = !(args.last.is_a?(Symbol) || args.last.is_a?(String)) ? args.pop : self
  keys = args.map(&:to_sym)
  obj.instance_variable_set(:@registry_keys, keys)
  keys.reverse.each do |key|
    obj.instance_variable_set(:@registry_key, key)
    registry[key] = obj
  end
  self
end

#registered?(key) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/registry.rb', line 97

def registered?(key)
  registry.key?(key && key.to_sym)
end

#registries ⇒ Object 



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# File 'lib/registry.rb', line 117

def registries
  @registries ||= superclass.registries
end

#registry(name = nil) ⇒ Object 



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# File 'lib/registry.rb', line 109

def registry(name = nil)
  @registry ||= registries.registry(registry_name(name))
end

#registry_name(name = nil) ⇒ Object 



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# File 'lib/registry.rb', line 113

def registry_name(name = nil)
  name.nil? ? @registry_name ||= superclass.registry_name : @registry_name = name
end

#unregister(obj = self) ⇒ Object 



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# File 'lib/registry.rb', line 91

def unregister(obj = self)
  return unless obj.respond_to?(:registry_key) && obj.registry_key
  registry.delete(obj.registry_key)
  obj.remove_instance_variable(:@registry_key)
end