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: / opt / td-agent / embedded / lib / ruby / gems / 2.1.0 / gems / jmespath-1.3.1 / lib / jmespath / nodes /

Filename : flatten.rb

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module JMESPath
  # @api private
  module Nodes
    class Flatten < Node
      def initialize(child)
        @child = child
      end

      def visit(value)
        value = @child.visit(value)
        if Array === value
          value.each_with_object([]) do |v, values|
            if Array === v
              values.concat(v)
            else
              values.push(v)
            end
          end
        else
          nil
        end
      end

      def optimize
        self.class.new(@child.optimize)
      end
    end
  end
end