Oh, you didn’t say it was an env var either. :) I just assumed based on the casing.
In any case, that’s a C constant. It can only be changed while the VM is building. On Fri, Oct 28, 2022 at 07:56 Zach Daniel <zachary.s.dan...@gmail.com> wrote: > Sorry, it isn't an environment variable as far as I can tell, its just a > constant in `erl_map.c`. > https://github.com/erlang/otp/blob/master/erts/emulator/beam/erl_map.c > > In this case I was using string keys, but reducing the likelihood of this > foot gun in any way is good :) > > > On Fri, Oct 28, 2022 at 12:34 AM, José Valim <jose.va...@dashbit.co> > wrote: > >> Can you please provide the documentation for said environment variable >> from Erlang? >> >> Also note that atom keys will likely no longer be sorted alphabetically >> in Erlang/OTP 26, which should help with said assumptions. >> >> On Fri, Oct 28, 2022 at 06:20 Zach Daniel <zachary.s.dan...@gmail.com> >> wrote: >> >>> Myself and many other developers have been bitten by the fact that maps >>> are sorted if they have less than 33 elements. Not because we believed that >>> we should rely on the sort ordering of a map, but because we *accidentally* >>> wrote an implementation that did, and didn't test it with more than 32 >>> elements. Then at some point later in actual use things get strange, and >>> debugging the above scenario can be very difficult (but is of course >>> obvious in retrospect). This could be opt-in or opt-out, all the same to >>> me, although unless the performance impacts are huge I think that it would >>> save new developers even more time than experienced developers and so >>> should potentially be opt-out. After a while when you start to see things >>> "showing up in weird orders" you have an intuition to go look for a map >>> being enumerated, but that isn't something a beginner would likely think >>> of. >>> >>> As far as I know this is an erlang thing, but I'm not too familiar with >>> erlang and thought I'd float it by the elixir group first. I'm also not >>> sure if its possible to change those constants based on Mix environments >>> (or to change them at all), but I imagine that is where it will intersect >>> with Elixir. >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "elixir-lang-core" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to elixir-lang-core+unsubscr...@googlegroups.com. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/elixir-lang-core/a528c1bb-b8e1-429c-b1ff-a98db36ee2d6n%40googlegroups.com >>> <https://groups.google.com/d/msgid/elixir-lang-core/a528c1bb-b8e1-429c-b1ff-a98db36ee2d6n%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >> >> >>> -- >> You received this message because you are subscribed to the Google Groups >> "elixir-lang-core" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to elixir-lang-core+unsubscr...@googlegroups.com. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/elixir-lang-core/CAGnRm4LBVOhd3AkP70QfkO486njj02%2BXYLGoAgF5M7AeHBGGJg%40mail.gmail.com >> <https://groups.google.com/d/msgid/elixir-lang-core/CAGnRm4LBVOhd3AkP70QfkO486njj02%2BXYLGoAgF5M7AeHBGGJg%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> > > -- > You received this message because you are subscribed to the Google Groups > "elixir-lang-core" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to elixir-lang-core+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/elixir-lang-core/l9s2xhyi.f95fde5a-5c38-40b7-ab2c-de3d3804b91f%40we.are.superhuman.com > <https://groups.google.com/d/msgid/elixir-lang-core/l9s2xhyi.f95fde5a-5c38-40b7-ab2c-de3d3804b91f%40we.are.superhuman.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "elixir-lang-core" group. To unsubscribe from this group and stop receiving emails from it, send an email to elixir-lang-core+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/elixir-lang-core/CAGnRm4K9V95mQzqMuEUyintLqOzytwf%2BXS%3DujkGNpcu1kr0oXA%40mail.gmail.com.
