Module: Hashie::Extensions::DeepMerge

Defined in:
lib/hashie/extensions/deep_merge.rb

Instance Method Summary collapse

Instance Method Details

#deep_merge(other_hash) ⇒ Object

Returns a new hash with +self+ and +other_hash+ merged recursively.



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# File 'lib/hashie/extensions/deep_merge.rb', line 5

def deep_merge(other_hash)
  (class << (h = dup); self; end).send :include, Hashie::Extensions::DeepMerge
  h.deep_merge!(other_hash)
end

#deep_merge!(other_hash) ⇒ Object

Returns a new hash with +self+ and +other_hash+ merged recursively. Modifies the receiver in place.



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# File 'lib/hashie/extensions/deep_merge.rb', line 12

def deep_merge!(other_hash)
  other_hash.each do |k,v|
    (class << (tv = self[k]); self; end).send :include, Hashie::Extensions::DeepMerge
    self[k] = tv.is_a?(::Hash) && v.is_a?(::Hash) ? tv.deep_merge(v) : v
  end
  self
end