[erlang-questions] gen_fsm.html deletes all of the function spec in 20.0-rc1, I know the gen_fsm is deprecated, but I think the function doc should not be deleted.
Fri May 12 08:39:40 CEST 2017
2017-05-12 5:52 GMT+02:00 getonga <getonga@REDACTED>:
> I compile the 20.0-rc1, and build the doc myself. And I learn that gen_fsm
> module is deprecated. When compiled the source code, an error will be
> Warning: gen_fsm:start_link/3 is deprecated and will be removed in a
> future release; use gen_statem:start/3
> Or something else.
> When I look into the doc, the gen_fsm module's all function docs are
> deleted, and I check the doc source, it is modified.
> But I think the function doc should be remaind, there are still a lot of
> projects using gen_fsm. When we look into doc, we can get the function
> meaning as before.
> Just like the module random. The random module is deprecated, but the
> function docs are not deleted, we can still refer to it.
The docs for gen_fsm are still available at erlang.org, and will be also
after 20, but not in the latest version thats all. It is really simple to
migrate a gen_fsm to a gen_statem and the 20 gen_fsm man page gives an
example of how. The random module is sort of semi deprecated and is not
representative of how things have been deprecated before. When changing the
crypto API a while back all documentation of deprecated functions where
removed at the same time as the compiler started to warn. I belive we have
not added the compiler warnings for random yet. Of course the code for
gen_fsm will still be around for some time due to backwardscompatibilit
reasons but we want to discurage all use of it.
Regards Ingela Erlang/OTP team - Ericsson AB
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