Class: Lono::Template::Strategy::Dsl::Builder::Squeezer

Inherits:
Object
  • Object
show all
Defined in:
lib/lono/template/strategy/dsl/builder/squeezer.rb

Instance Method Summary collapse

Constructor Details

#initialize(data) ⇒ Squeezer

Returns a new instance of Squeezer.



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# File 'lib/lono/template/strategy/dsl/builder/squeezer.rb', line 3

def initialize(data)
  @data = data
end

Instance Method Details

#squeeze(new_data = nil) ⇒ Object 



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# File 'lib/lono/template/strategy/dsl/builder/squeezer.rb', line 7

def squeeze(new_data=nil)
  data = new_data.nil? ? @data : new_data

  case data
  when Array
    data.map! { |v| squeeze(v) }
  when Hash
    data.each_with_object({}) do |(k,v), squeezed|
      # only remove nil and empty Array values within Hash structures
      squeezed[k] = squeeze(v) unless v.nil? || v.is_a?(Array) && v.empty?
      squeezed
    end
  else
    data # do not transform
  end
end