Compile rustc HEAD

[DemiMarie]

It would be nice if mrustc could compile rustc HEAD.

[thepowersgang]

It would be. There is an open branch nightly-1.29 that is attempting to compile rustc 1.29, but is currently blocked on complex type inference in compiler_builtins

[arlied-google]

If nightly-1.29 were pushed to master, what's the latest Rust version that it could compile?

How much work is there to do on type inference? I'm willing to put some time into it, myself.

[thepowersgang]

As the name suggests, it's targeting 1.29 (development of that branch is against 1.29 stable)

[DemiMarie]

Also, if I may ask, how hard would it be to add a borrow checker?

…

On Thu, Nov 29, 2018, 9:43 PM John Hodge (Mutabah) ***@***.*** wrote: As the name suggests, it's targeting 1.29 (development of that branch is against 1.29 stable) — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#93 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AGGWB0FIfUzIPWxuAwhh9fU79OTljwcnks5u0JtTgaJpZM4Y2hsI> .

[thepowersgang]

Re the 1.29 branch, see #95

Re adding a borrow checker, not insurmountable but it would require quite a bit of work to propagate the lifetime annotations and do region inference.

[thepowersgang]

Closing, as targeting HEAD would be a futile effort (as it's always changing). The 1.29 branch is an effort to upgrade the target version to something more recent, and I predict a similar effort every year or so.