There are constructs that rely on this. For example, if you want to have a receive without clauses, only with an after, you would do:
receive do after 30_000 -> IO.puts "waited 30s" end On Wed, Jun 24, 2020 at 5:28 PM Alessio 'Blaster' Biancalana < dottorblas...@gmail.com> wrote: > Hi! > A warning would be great so one could watch on them using `mix compile > --warnings-as-errors` :-) > > Alessio > > On Wed, Jun 24, 2020 at 5:16 PM Andrea Leopardi <an.leopa...@gmail.com> > wrote: > >> It can't error out on compilation because it would be a breaking change. >> However, personally I'm not against a compilation warning here, but there's >> a chance we decided to not emit that for a reason that I can't recall right >> now 😅 >> >> Andrea >> >> On Wed, 24 Jun 2020 at 13:19, Mário Guimarães < >> mario.luis.guimar...@gmail.com> wrote: >> >>> Hello, >>> >>> I just observed the following cases >>> >>> iex(3)> if true do >>> ...(3)> else >>> ...(3)> :ok >>> ...(3)> end >>> nil >>> iex(4)> if false do >>> ...(4)> :ok >>> ...(4)> else >>> ...(4)> end >>> nil >>> iex(5)> if :anything do >>> ...(5)> else >>> ...(5)> end >>> nil >>> iex(6)> >>> >>> Should't they give a compilation error instead due to the empty blocks? >>> >>> Not only these cases are somewhat harder to read, but it seems that >>> something is missing ... >>> >>> Thanks >>> >>> -- >>> 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/81ee6358-695b-493d-aaf7-f310245943b6o%40googlegroups.com >>> <https://groups.google.com/d/msgid/elixir-lang-core/81ee6358-695b-493d-aaf7-f310245943b6o%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/CAM9Rf%2BJfB_3yzRMw8GU_m_wsVWL9pP1Xc0Em-1pLi3BMCodGCw%40mail.gmail.com >> <https://groups.google.com/d/msgid/elixir-lang-core/CAM9Rf%2BJfB_3yzRMw8GU_m_wsVWL9pP1Xc0Em-1pLi3BMCodGCw%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/CAK6%2BgZLfj4yty4dM9kx8epZCw7u%3DSz5PK6%2B%3D627WWBtfVDFZZQ%40mail.gmail.com > <https://groups.google.com/d/msgid/elixir-lang-core/CAK6%2BgZLfj4yty4dM9kx8epZCw7u%3DSz5PK6%2B%3D627WWBtfVDFZZQ%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/CAGnRm4%2BS8EQXfwMFadFV5AU-2PMtUJo0FA1jVAuHyZmvRPmznA%40mail.gmail.com.
