You should be able to use inside matches if you make it a macro. On Wed, Feb 8, 2017 at 02:28 Wojtek Mach <woj...@wojtekmach.pl> wrote:
> (sorry for digging up old topic) > > I would be open though to adding support for number sigils like 13.0d, > 13.0f although we should also consider how numbers like rationals would > play into that. > > > Would the idea by that Elixir would allow doing a 13.0d sigil, and Decimal > (whether in core or separate library) implements that sigil? > > I think another advantage of including Decimal in core is exactly the > sigil. Then the inspect implementation could simply return "13.0d" instead > of "#Decimal<13.0>" which would make it copy-pasteable in editor/iex (since > it'd be a valid Elixir expression) which makes it extremely convenient for > actually working with it, debugging code that uses it etc. Another > advantage is using it is in match. > > Currently this isn't allowed: > > defmodule DecimalSigil do > def sigil_X(str, _) do > Decimal.new(str) > end > end > > import DecimalSigil > ~X[3] = Decimal.add(~X[1], ~X[2]) > > cannot invoke remote function DecimalSigil.sigil_X/2 inside match > > # see: https://github.com/ericmj/decimal/issues/38 > > Looks like custom sigils can't be used in matches, but built-in can. > > -- > 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/e5d1fc3e-14d9-489e-8051-2f7a7d2e913e%40googlegroups.com > <https://groups.google.com/d/msgid/elixir-lang-core/e5d1fc3e-14d9-489e-8051-2f7a7d2e913e%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- *José Valim* www.plataformatec.com.br Skype: jv.ptec Founder and Director of R&D -- 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/CAGnRm4LwJuzCBWtf-abANDVbYeq4a4e4xRJbOmSrpqSCaX4vuw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
