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typeof() in the type language #3228
Description
I'm not sure if this would be useful in every-day code, but I just wrote some code where it would've been nice to say:
let foo: typeof(earlier_thing) = unsafe::transmute(...);
instead of
let foo: complicated::typename::that_might_change_later = unsafe::transmute(...);
Activity
sanxiyn commentedon May 3, 2013
Nominating for backwards compatible milestone.
graydon commentedon Jun 20, 2013
reserving the keyword at least is required for this to be backwards-compatible; actual feature is later
graydon commentedon Jun 20, 2013
accepted for backwards-compatible milestone
emberian commentedon Aug 5, 2013
This would be very nice.
thestinger commentedon May 10, 2014
This is the kind of thing we really need to go through the new formal RFC process. There's never going to be enough discussion here. It's no longer a backwards compatibility issue because
typeofis reserved.Fix contract handling of promoted constants and constant static (rust…
Merge rust-lang#3228