File: deep_symbolize_hash.rb

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# frozen_string_literal: true

module Grape
  module Extensions
    module DeepSymbolizeHash
      def self.deep_symbolize_keys_in(object)
        case object
        when ::Hash
          object.each_with_object({}) do |(key, value), new_hash|
            new_hash[symbolize_key(key)] = deep_symbolize_keys_in(value)
          end
        when ::Array
          object.map { |element| deep_symbolize_keys_in(element) }
        else
          object
        end
      end

      def self.symbolize_key(key)
        if key.is_a?(Symbol)
          key
        elsif key.is_a?(String)
          key.to_sym
        elsif key.respond_to?(:to_sym)
          key.to_sym
        else
          key
        end
      end
    end
  end
end