I will be speculating a little since I haven't actually read the source. As far as I understand, YouCompleteMe uses python for some parts but at its core it has a cpp component using libclang library. libclang library itself is already something that provides code completion which is the thing missing for rust language.
[libclang]: http://clang.llvm.org/doxygen/group__CINDEX.html On Tue, Nov 19, 2013 at 10:13 PM, Gaetan <[email protected]> wrote: > I think we can write in rust and perhaps reuse part of the compiler, but > we cannot allow to support only fully compiler crates. > > It may be possible to begin a draft in language such as python > (YouCompleteMe seems to be written mostly in python) > > ----- > Gaetan > > > > 2013/11/19 Gokcehan Kara <[email protected]> > >> I'm willing to help on this task, I think having a good completion >>> library can help a lot smoothing the learning curve of a new language. I >>> learned python in a few days with aptana, and I remember a few years ago >>> how it was easy to write C++ with visual studio. Having an IDE integration >>> is almost as important as having good tutorials. >> >> >> That's great. I agree that it would be nice for newbies and I think also >> for others as most people are already quite spoiled by the capabilities of >> modern IDE's these days. >> >> I'm also a newbe in Rust and I imagine you want to write in rust itself. >>> I can help on the integration with sublime. >> >> >> I was hoping to write in rust because I don't want to implement/maintain >> a parser and typechecker from scratch. I was very pleased to see that it's >> possible to access everything in `librustc` and `libsyntax` with a simple >> `extern`, not sure if this will be removed later. >> >> rustfind (https://github.com/dobkeratops/rustfind) does this and more, >>> for crates that compile. >> >> >> I wasn't aware of that, looks very nice indeed. I will take a look and >> see if I can contribute somehow when I have some time. >> >> Not very, for the general case. If you want autocompletion as you >>> type, you currently need to have a fully-compilable crate. Otherwise, >>> parsing or typechecking or something else will fail and you won't be >>> able to get any results. rustc is currently very all-or-nothing. >> >> >> It's a bummer. Are there any plans to implement some error recovery to >> rustc? >> >> But, you can get useful information for completion out of an >>> already-compiling crate, though I'm not sure how much better it would >>> be than what etags already does. >> >> >> It has been some time since I last tried tags for autocompletion but it >> wasn't very accurate as far as I remember. As far as I know you also need >> some editor plugin for this, something like [OmniCppComplete]( >> http://www.vim.org/scripts/script.php?script_id=1520) which is basically >> a cpp parser implemented in vimscript. >> >> Very, since it would require reworking most of the compiler ;) >> >> >> :) >> > >
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