Compilation failure in Elixir 1.18 rc 0

[nathany-copia]

==> exvcr
Compiling 32 files (.ex)
    error: recursive variable definition in patterns:

    start(arg = arg)

    the variable "arg" is defined in function of itself
    │
 13 │     defstart start(arg), do: initial_state(arg)
    │     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    │
    └─ lib/exvcr/actor.ex:13: ExVCR.Actor.Responses.start/1


== Compilation error in file lib/exvcr/actor.ex ==
** (CompileError) lib/exvcr/actor.ex: cannot compile module ExVCR.Actor.Responses (errors have been logged)
    (stdlib 6.2) maps.erl:860: :maps.fold_1/4
    lib/exvcr/actor.ex:13: (module)

[nathany-copia]

https://github.com/elixir-lang/elixir/releases/tag/v1.18.0-rc.0

[nathany-copia]

FYI https://elixir-lang.org/blog/2024/12/19/elixir-v1-18-0-released/

[thbar]

@nathany-copia I reported this to José here https://x.com/thibaut_barrere/status/1868764765860114627 and I believe he modified the error to become a warning, so I think the compilation should work (unless other issues stack up).

[nathany-copia]

As it turns out, ExVCR didn’t work in Elixir 1.18 release candidate, but it does work in Elixir 1.18.