# File lib/openid/extensions/ax.rb, line 97 def self.to_type_uris(namespace_map, alias_list_s) return [] if alias_list_s.nil? alias_list_s.split(',').inject([]) {|uris, name| type_uri = namespace_map.get_namespace_uri(name) raise IndexError, "No type defined for attribute name #{name.inspect}" if type_uri.nil? uris << type_uri } end