signal_stage()
allows you to signal life cycle stages other than
deprecation (for which you should use deprecate_warn()
and friends).
There is no behaviour associated with this signal, but in the future
we will provide tools to log and report on usage of experimental and
superseded functions.
Arguments
- stage
Life cycle stage, either "experimental" or "superseded".
- what
String describing what feature the stage applies too, using the same syntax as
deprecate_warn()
.- with
An optional string giving a recommended replacement for a superseded function.
- env
Environment used to determine where
signal_stage()
was called, used to determine the package name).