[Pre-RFC] Inferred Enum Type

[scottmcm]

More IRLO threads about this:

Auto infer namespaces on struct and enum instantiations

I don't think it's ever made it to an RFC. Here's a recent discussion: Short enum variant syntax in some cases - #5 by scottmcm (with a link to the discussion before that...) I've also pondered using . for it, kinda like Swift, to avoid it looking like "path elision" (which doesn't exist, and probably never should -- no std::_::Add, for example). With that your example would then be msg::Msg::ViewportMouse(.{ pos: MousePos, action: .Down })

Elliding type in matching an Enum

Could it just be that? If you try to write a floating point literal as .5 you get "expected expression, found .", so I think that confirms there aren’t currently any expressions starting with .. (Does have the downside of being fairly different from any existing rust syntax, though…)

(There are probably more. It's been discussed many, many times.)