Thanks, Nathan. This is really great to see! -r
On Thu, Apr 21, 2016 at 7:57 AM, Nathan Froyd <nfr...@mozilla.com> wrote: > Bug 1163224 has landed on inbound, which means that Gecko builds with > --enable-rust now support multiple Rust crates. This change is > intended to make the lives of people developing Rust components > easier, and it comes with several caveats: > > 1) There is zero support for interdependencies between crates, so you > have to structure your crate as one big crate that includes any > dependencies, rather than several separate crates, as is the norm. > This is clearly suboptimal, and it will be fixed. I think it's an > open question exactly how we're going to integrate multiple crates and > external projects anyway, so feel free to experiment! > > 2) We do not have Rust support on all of our Tier 1 platforms (Android > is still being worked on), so actually depending on Rust code > everywhere is still not possible. > > 3) Due to bug 1178897, Rust code uses a completely different memory > allocator than the rest of Gecko. We therefore don't have any > visibility into Rust's memory allocations through things like > about:memory, using Rust code worsens fragmentation issues, and there > are also edge cases with allocating in C++ and freeing in Rust (or > vice versa). This is obviously something we're going to fix, ideally > soon. > > We --enable-rust on all of our Tier 1 desktop platforms, but given 2) > and 3) above, it seems best to limit the amount of Rust code we > actually ship. So if you want to land Rust components in-tree right > now, I'd recommend gating your component behind an --enable-shiny > configure option. Ideally 2) and 3) will be fixed in short order, 1) > will be ironed out, and then the real fun can begin! > > Thanks, > -Nathan > _______________________________________________ > dev-platform mailing list > dev-platform@lists.mozilla.org > https://lists.mozilla.org/listinfo/dev-platform _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
