yawaramin
Dialyzer: suppress warning on a specific function
In the Dialyzer docs ( dialyzer — OTP 29.0.2 (dialyzer 6.0.1) ), there is a way to turn off a specific warning for a function:
-dialyzer({no_return, g/0}).
If I’m understanding correctly, this should turn off the ‘function has no local return’ warning.
Is there a way to express this in Elixir? The following is giving me an ArithmeticError:
@dialyzer {:no_return, :g/0}
Marked As Solved
idi527
Right!
defmodule Myapp.Repo do
use Ecto.Repo, otp_app: :myapp
@dialyzer {:nowarn_function, rollback: 1}
end
from Phoenix Dialyxir Quickstart · jeremyjh/dialyxir Wiki · GitHub
So -dialyzer({no_return, g/0}). would probably become
@dialyzer {:no_return, g: 0}
Also Liked
NobbZ
If I recall correctly, its @dialyzer {:no_return, {:g, 0}}.
acco
For posterity: you can also disable warnings for functions for third-party deps/modules:
@dialyzer {:nowarn_function, &MyXQL.rollback/2}
# somewhere later...
{:error, res} =
MyXQL.transaction(pid, fn conn ->
MyXQL.query!(conn, statement, params)
MyXQL.rollback(conn, :rolled_back)
end)
scottming
I think this way is better, some function that calling the g/0 function also will be disabled
@dialyzer {:noreturn_function, g: 0}
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