anthonator
Hey all!
I’m receiving this dialyzer error from a library and I’m not sure how to suppress it on my end.
lib/core/distributed_registry.ex:17:callback_type_mismatch
Type mismatch for @callback init/1 in Horde.Registry behaviour.
Expected type:
{:ok, Keyword.t()}
Actual type:
:ignore
| {:ok,
{%{:intensity => _, :period => _, :strategy => _}, [any()]}
| %{
:delta_crdt_options => %{:max_sync_size => _, :shutdown => _, :sync_interval => _},
:distribution_strategy => _,
:keys => _,
:listeners => _,
:members => _,
:meta => _
}}
| {:stop, {:bad_return, {atom(), :init, _}}}
________________________________________________________________________________
done (warnings were emitted)
Halting VM with exit status 2
Thanks in advance!
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al2o3cr
Crossreferencing DynamicSupervisor and Registry init spec is wrong. · Issue #181 · elixir-horde/horde · GitHub here for other readers.
We use Horde.Registry and have this same issue, ended up adding a
.dialyzer_ignore.exscontaining:anthonator
Awesome! Thank you!
I ended up putting this at the top of my registry.
thousandsofthem
In similar cases
@dialyzer { :nowarndoesn’t help much - indeed it does suppress the warning, except any function that uses that function will produce the warning instead. This means either i close my eyes on a few dozen of such warnings across the project or mark every single use with nowarn bandaid, making dyalyzer essentially half-useless. Fixing a library would be the solution, but could be not possible for various reasonsanthonator
There’s only so much you can do if you don’t control the code. In this case a fix has been merged but not released.