# File lib/ffi/library.rb, line 160
  def typedef(current, add)
    @ffi_typedefs = Hash.new unless defined?(@ffi_typedefs)
    if current.kind_of? Integer
      code = current
    else
      code = @ffi_typedefs[current] || FFI.find_type(current)
    end

    @ffi_typedefs[add] = code
  end