class Rails::Initializable::Collection

# File railties/lib/rails/initializable.rb, line 43
def initialize(initializers = nil)
  @order = Hash.new { |hash, key| hash[key] = Set.new }
  @resolve = Hash.new { |hash, key| hash[key] = Set.new }
  @collection = []
  concat(initializers) if initializers
end

# File railties/lib/rails/initializable.rb, line 69
def +(other)
  dup.concat(other.to_a)
end

# File railties/lib/rails/initializable.rb, line 73
def <<(initializer)
  @collection << initializer
  @order[initializer.before] << initializer.name if initializer.before
  @order[initializer.name] << initializer.after if initializer.after
  @resolve[initializer.name] << initializer
  self
end

# File railties/lib/rails/initializable.rb, line 88
def concat(*initializer_collections)
  initializer_collections.each do |initializers|
    initializers.each(&method(:<<))
  end
  self
end

# File railties/lib/rails/initializable.rb, line 58
def each(&block)
  @collection.each(&block)
end

# File railties/lib/rails/initializable.rb, line 95
def has?(name)
  @resolve.key?(name)
end

# File railties/lib/rails/initializable.rb, line 54
def last
  @collection.last
end

# File railties/lib/rails/initializable.rb, line 81
def push(*initializers)
  initializers.each(&method(:<<))
  self
end

# File railties/lib/rails/initializable.rb, line 50
def to_a
  @collection
end

# File railties/lib/rails/initializable.rb, line 63
def tsort_each_child(initializer, &block)
  @order[initializer.name].each do |name|
    @resolve[name].each(&block)
  end
end