oak_scss/
lsp.rs

1use crate::{ScssLanguage, kind::ScssSyntaxKind};
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 SCSS.
10pub struct ScssHoverProvider;
11
12impl HoverProvider<ScssLanguage> for ScssHoverProvider {
13    fn hover(&self, node: &RedNode<'_, ScssLanguage>, _range: Range<usize>) -> Option<Hover> {
14        let kind = node.green.kind;
15
16        // Provide context-aware hover information
17        let contents = match kind {
18            ScssSyntaxKind::Selector => "### SCSS Selector\nDefines the target elements for styling.",
19            ScssSyntaxKind::Property => "### SCSS Property\nDefines a style attribute.",
20            ScssSyntaxKind::Variable => "### SCSS Variable\nDefines a reusable value.",
21            _ => return None,
22        };
23
24        Some(Hover { contents: contents.to_string(), range: Some(node.span()) })
25    }
26}
27
28/// Language service implementation for SCSS.
29pub struct ScssLanguageService<V: Vfs> {
30    vfs: V,
31    workspace: oak_lsp::workspace::WorkspaceManager,
32    hover_provider: ScssHoverProvider,
33}
34
35impl<V: Vfs> ScssLanguageService<V> {
36    /// Creates a new `ScssLanguageService`.
37    pub fn new(vfs: V) -> Self {
38        Self { vfs, workspace: oak_lsp::workspace::WorkspaceManager::default(), hover_provider: ScssHoverProvider }
39    }
40}
41
42impl<V: Vfs + Send + Sync + 'static + oak_vfs::WritableVfs> LanguageService for ScssLanguageService<V> {
43    type Lang = ScssLanguage;
44    type Vfs = V;
45
46    fn vfs(&self) -> &Self::Vfs {
47        &self.vfs
48    }
49
50    fn workspace(&self) -> &oak_lsp::workspace::WorkspaceManager {
51        &self.workspace
52    }
53
54    fn get_root(&self, _uri: &str) -> impl Future<Output = Option<RedNode<'_, ScssLanguage>>> + Send + '_ {
55        async move {
56            // TODO: Implement proper caching of parsed trees in LanguageService
57            None
58        }
59    }
60
61    fn hover(&self, uri: &str, range: Range<usize>) -> impl Future<Output = Option<oak_lsp::Hover>> + Send + '_ {
62        let uri = uri.to_string();
63        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() }
64    }
65}
oak_scss/lsp.rs

oak_scss/
lsp.rs
