Initial Ada language support

[tomekw]

Tree-Sitter grammar and queries from: https://github.com/briot/tree-sitter-ada

Language server from: https://github.com/AdaCore/ada_language_server

Ada build tool: https://alire.ada.dev

[tomekw]

☝️ @briot ty for the grammar! Any ideas how to add the indent queries as well?

[archseer]

What's the compile time on this? We had to drop the old tree-sitter-ada grammar that was under the official tree-sitter org because it took too long to compile and had various issues.

[tomekw]

@archseer I’ve no idea TBH. How can I check this?

[briot]

I just did a quick check: cargo clean ❯ time cargo build    Compiling memchr v2.5.0    Compiling cc v1.0.73    Compiling regex-syntax v0.6.27    Compiling tree-sitter v0.20.9    Compiling tree-sitter-ada v0.0.1 (/home/briot/tree-sitter-ada)    Compiling aho-corasick v0.7.19    Compiling regex v1.6.0     Finished dev [unoptimized + debuginfo] target(s) in 3.14s cargo build  10.27s user 1.09s system 357% cpu 3.179 total So 3s total, when all packages have been downloaded already (and these are dependencies from tree-sitter itself, so would apply to all languages that you want to support). I have not investigated the indentation queries (not sure that neovim, which is my editor of choice) supports them properly yet. Emmanuel

[the-mikedavis]

The links to nvim documentation should also be removed, that could be confusing for anyone reading the files

[the-mikedavis]

The captures here should be adjusted to the ones that Helix uses: https://docs.helix-editor.com/master/themes.html#syntax-highlighting

For example @conditional should become @keyword.control.conditional, @number should become @constant.numeric, etc.

[the-mikedavis]

The captures here should follow tree-sitter's locals capture names: @local.scope, @local.reference and @local.definition https://tree-sitter.github.io/tree-sitter/syntax-highlighting#local-variables

[tomekw]

Oh, I don't think I know that much, or anything really, about Tree Sitter to do that properly. I need to do some reading and find some time to do it. Unless there is someone else willing to chip in.

[the-mikedavis]

See the textobjects docs, Helix has a different set of textobject captures than nvim: https://docs.helix-editor.com/master/guides/textobject.html

[the-mikedavis]

Looking at the state counts in the parser.c, this grammar seems larger than average but not as huge as something like tree-sitter-elixir. On-disk I see the so as 327kb and the compilation time of hx -g build of just the ada grammar seems very normal to me.

[the-mikedavis]

Running cargo xtask docgen and committing the changes will fix the docs CI

[KhazAkar]

Would this PR also take into consideration .gpr file support with ada language-server running with --language-gpr flag?

[pascalkuthe]

closed by #9908