Trouble with init/1 spec
Jay Nelson
jay@REDACTED
Wed Mar 24 17:30:56 CET 2010
On Mar 24, 2010, at 9:20 AM, Magnus Henoch wrote:
>
> My favourite fix for that is to pass a tuple instead of a list.
> gen_{server,fsm}:start_link accept any term as the argument, and
> pass it
> unchanged to the init callback function, so I don't really see any
> reason to use a list there.
Wow! After all these years, for some reason I always thought init/1
took a list of args the way {M,F,A} does. I don't know if I picked
it up because of all the examples or what, but of course it makes no
sense that fun/1 could specify the type of the argument.
I always have boiler plate code from start_link/xx to init/1 that
rebundles all my args as a list. Doh!
And of course using a tuple follows the OTP coding standard for fixed
length data structures, as well as utilizing dialyzer the way it was
intended.
Thanks All!
jay
More information about the erlang-questions
mailing list