Module: KeyDial::Coercion::Hashes::ClassMethods

Defined in:
lib/key_dial/coercion.rb

Instance Method Summary collapse

Instance Method Details

#from(obj) ⇒ Object

Allows you to do Hash.from(obj) to create a Hash from any object intelligently.



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# File 'lib/key_dial/coercion.rb', line 38

def from(obj)
  case obj
  when Hash
    return obj
  when Array
    # Hash from Array. Forgiving and avoids errors. ['a', 'b', 'c'] will become {0 => 'a', 1 => 'b', 2 => 'c'}

    obj.each_with_index.map { |k, i|
      if k.is_a?(Array)
        if k.empty?
          [i, nil]
        elsif k.size == 2
          k # k in this case is a keyval pair, e.g. [k, v]

        else
          [i, k]
        end
      else
        [i, k]
      end
    }.to_h
  when Struct
    # Hash from Struct

    return obj.to_h
  else
    {0 => obj}
  end
end