The following are internal S3 infrastructure helper functions.
is_S3_user_generic(function_name, envir = parent.frame())make_S3_methods_known(module)
function name as character string.
the environment this function is invoked from.
the module object for which to register S3 methods
is_S3_user_generic returns TRUE if the specified
function is a user-defined S3 generic, FALSE otherwise.
is_S3_user_generic checks whether a function given by name is a
user-defined generic. A user-defined generic is any function which, at some
point, calls UseMethod.
make_S3_methods_known finds and registers S3 methods inside a module.