error in parse transform 'mixer'

[asyncmind0]

I'm trying to update the deps on this https://github.com/jagguli/sumo_db_riak/tree/wip project and get the tests running

but I ran into this issue

test/meta_SUITE.erl:none: error in parse transform 'mixer':
exception error: an error occurred when evaluating an arithmetic expression
  in function  mixer:'-insert_stubs/3-fun-0-'/2 (/home/steven/streethawk/contextual/_checkouts/sumo_db_riak/_build/test/lib/mixer/src/mixer.erl, line 169)
  in call from lists:foldr/3 (lists.erl, line 1280)
  in call from mixer:insert_stubs/3 (/home/steven/streethawk/contextual/_checkouts/sumo_db_riak/_build/test/lib/mixer/src/mixer.erl, line 175)
  in call from mixer:parse_transform/2 (/home/steven/streethawk/contextual/_checkouts/sumo_db_riak/_build/test/lib/mixer/src/mixer.erl, line 42)
  in call from compile:foldl_transform/3 (compile.erl, line 1147)
  in call from compile:fold_comp/4 (compile.erl, line 418)
  in call from compile:internal_comp/5 (compile.erl, line 402)
  in call from compile:'-internal_fun/2-anonymous-0-'/2 (compile.erl, line 229)

not sure why this is happening, any help would be appreciated

[elbrujohalcon]

I'm not 100% sure, but you can try moving mixer to its latest version: 1.2.0

[paulo-ferraz-oliveira]

I remember something similar to this. It had to do with internal changes to Erlang/OTP and the way a location is no longer simply just a line (integer), but rather a tuple (with line and column).

I suggest the same as @elbrujohalcon, that you move to the most recent version and then report the results here, if you feel like it.

Also, what Erlang/OTP version are you using? Is it any of the ones tested by us in the GHA: https://github.com/inaka/mixer/blob/master/.github/workflows/ci.yml#L17?

[asyncmind0]

yep tried latest version 1.2.0

[elbrujohalcon]

@jagguli I don't understand. Does it fail with version 1.2.0, as well?

[asyncmind0]

Yes it fails with the 1.2.0 version as well.

[elbrujohalcon]

Oh, it fails in sumo_db_riak's master as well… I see…

[elbrujohalcon]

@jagguli I'm not entirely sure what the issue is, but… To "fix" sumo_db_riak (and this is something we should do on the inaka side, but it has proven to be non-trivial since we don't have the count_by/3 callback that you recently added), you can get rid of katana-test and the meta_SUITE entirely and add a test alias in rebar.config, like I did on worker_pool: https://github.com/inaka/worker_pool/blob/6275bfc411ad27809a0185fc7a2839a8423a4bd3/rebar.config#L73-L83

That will solve your problem, and improve sumo_db_riak in the process.