Class: Golem::Util::ElementCollection

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/golem/util/element_collection.rb

Instance Method Summary collapse

Constructor Details

#initialize(restricted_to_type = nil) ⇒ ElementCollection

Returns a new instance of ElementCollection.



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# File 'lib/golem/util/element_collection.rb', line 6

def initialize(restricted_to_type = nil)
  @collection = {}
  @restricted_to_type = restricted_to_type
end

Instance Method Details

#[](key) ⇒ Object 



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# File 'lib/golem/util/element_collection.rb', line 11

def [](key)
  return nil if key.nil?
  key = key.name if key.respond_to?(:name)
  @collection[key.to_sym]
end

#[]=(key, value) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/golem/util/element_collection.rb', line 17

def []=(key, value)
  key = key.name if key.respond_to?(:name)
  raise ArgumentError, "Value must be a #{@restricted_to_type.name.inspect} but is a #{value.class.name.inspect}!" if
    @restricted_to_type && !value.kind_of?(@restricted_to_type)
  @collection[key.to_sym] = value
end

#each ⇒ Object 



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# File 'lib/golem/util/element_collection.rb', line 24

def each
  @collection.values.each{|v| yield v}
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/golem/util/element_collection.rb', line 28

def empty?
  @collection.empty?
end

#values ⇒ Object 



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# File 'lib/golem/util/element_collection.rb', line 32

def values
  @collection.values
end