module R10K::Util::SymbolizeKeys

Public Instance Methods

symbolize_keys!(hash, recurse = false) click to toggle source

Convert all String keys to Symbol keys

@param hash [Hash] The data structure to convert @param recurse [Boolean] Whether to recursively symbolize keys in nested

hash values. Defaults to false.

@raise [TypeError] If a String key collides with an existing Symbol key @return [void]

# File lib/r10k/util/symbolize_keys.rb, line 13
def symbolize_keys!(hash, recurse = false)
  hash.keys.each do |key|
    if key.is_a?(String)
      if hash.key?(key.to_sym)
        raise TypeError, _("An existing interned key for %{key} exists, cannot overwrite") % {key: key}
      end
      hash[key.to_sym] = hash.delete(key)
      key = key.to_sym
    end

    value = hash[key]
    if recurse
      if value.is_a?(Hash)
        symbolize_keys!(value, true)
      elsif value.is_a?(Array)
        value.map { |item| symbolize_keys!(item, true) if item.is_a?(Hash) }
      end
    end
  end
end