oak_ruby/
lsp.rs

1use crate::{kind::RubySyntaxKind, language::RubyLanguage};
2use core::range::Range;
3use futures::Future;
4use oak_core::tree::RedNode;
5use oak_hover::{Hover, HoverProvider};
6use oak_lsp::service::LanguageService;
7use oak_vfs::Vfs;
8
9/// Hover provider implementation for Ruby.
10pub struct RubyHoverProvider;
11
12impl HoverProvider<RubyLanguage> for RubyHoverProvider {
13    fn hover(&self, node: &RedNode<RubyLanguage>, _range: Range<usize>) -> Option<Hover> {
14        let kind = node.green.kind;
15
16        // Provide context-aware hover information
17        let contents = match kind {
18            RubySyntaxKind::MethodDefinition => "### Ruby Method\nDefines a callable block of code.",
19            RubySyntaxKind::ClassDefinition => "### Ruby Class\nDefines a blueprint for objects.",
20            _ => return None,
21        };
22
23        Some(Hover { contents: contents.to_string(), range: Some(node.span()) })
24    }
25}
26
27/// Language service implementation for Ruby.
28pub struct RubyLanguageService<V: Vfs> {
29    vfs: V,
30    workspace: oak_lsp::workspace::WorkspaceManager,
31    hover_provider: RubyHoverProvider,
32}
33
34impl<V: Vfs> RubyLanguageService<V> {
35    /// Creates a new `RubyLanguageService`.
36    pub fn new(vfs: V) -> Self {
37        Self { vfs, workspace: oak_lsp::workspace::WorkspaceManager::default(), hover_provider: RubyHoverProvider }
38    }
39}
40
41impl<V: Vfs + Send + Sync + 'static + oak_vfs::WritableVfs> LanguageService for RubyLanguageService<V> {
42    type Lang = RubyLanguage;
43    type Vfs = V;
44
45    fn vfs(&self) -> &Self::Vfs {
46        &self.vfs
47    }
48
49    fn workspace(&self) -> &oak_lsp::workspace::WorkspaceManager {
50        &self.workspace
51    }
52
53    fn get_root(&self, uri: &str) -> impl Future<Output = Option<RedNode<'_, RubyLanguage>>> + Send + '_ {
54        let source = self.vfs().get_source(uri);
55        async move {
56            let source = source?;
57            let language = RubyLanguage::default();
58            let parser = crate::parser::RubyParser::new(&language);
59            let lexer = crate::lexer::RubyLexer::new(&language);
60
61            let mut cache = oak_core::parser::session::ParseSession::<RubyLanguage>::default();
62            let _output = oak_core::parser::parse(&parser, &lexer, &source, &[], &mut cache);
63            None
64        }
65    }
66
67    fn hover(&self, uri: &str, range: Range<usize>) -> impl Future<Output = Option<oak_lsp::Hover>> + Send + '_ {
68        let uri = uri.to_string();
69        async move { self.with_root(&uri, |root| self.hover_provider.hover(&root, range).map(|h| oak_lsp::Hover { contents: h.contents, range: h.range })).await.flatten() }
70    }
71}
oak_ruby/lsp.rs

oak_ruby/
lsp.rs
