# File lib/ffi/library.rb, line 395 def typedef(old, add, info=nil) @ffi_typedefs = Hash.new unless defined?(@ffi_typedefs) @ffi_typedefs[add] = if old.kind_of?(FFI::Type) old elsif @ffi_typedefs.has_key?(old) @ffi_typedefs[old] elsif old.is_a?(DataConverter) FFI::Type::Mapped.new(old) elsif old == :enum if add.kind_of?(Array) self.enum(add) else self.enum(info, add) end else FFI.find_type(old) end end