Method: Xqsr3::Containers::MultiMap#each

Defined in:
lib/xqsr3/containers/multi_map.rb

#each(*defaults) ⇒ Object

Calls block once for each key-value pair, passing the key and each of its values in turn. If the values for a given key are empty and defaults is not empty, the block is invoked for that key (with defaults[0]) once

Exceptions

  • ArgumentError if more than 1 defaults is provided, or no block is given

Raises:

  • (ArgumentError) 


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# File 'lib/xqsr3/containers/multi_map.rb', line 229

def each *defaults

  raise ArgumentError, "may only supply 0 or 1 defaults" if defaults.size > 1
  raise ArgumentError, 'block is required' unless block_given?

  @inner.each do |key, values|

    if values.empty? && !defaults.empty?

      yield key, defaults[0]

      next
    end

    values.each { |value| yield key, value }
  end
end