oak_scss/lsp/
mod.rs

1#![doc = include_str!("readme.md")]
2#[cfg(feature = "oak-highlight")]
3pub mod highlighter;
4
5#[cfg(feature = "lsp")]
6use {
7    futures::Future,
8    oak_hover::{Hover, HoverProvider},
9    oak_lsp::service::LanguageService,
10    oak_vfs::Vfs,
11};
12#[cfg(feature = "oak-pretty-print")]
13pub mod formatter;
14use crate::{ScssLanguage, lexer::token_type::ScssTokenType, parser::element_type::ScssElementType};
15use core::range::Range;
16use oak_core::tree::RedNode;
17/// Hover provider implementation for SCSS.
18#[cfg(feature = "lsp")]
19pub struct ScssHoverProvider;
20#[cfg(feature = "lsp")]
21impl HoverProvider<ScssLanguage> for ScssHoverProvider {
22    fn hover(&self, node: &RedNode<'_, ScssLanguage>, _range: Range<usize>) -> Option<Hover> {
23        let kind = node.green.kind;
24        // Provide context-aware hover information
25        let contents = match kind {
26            ScssElementType::Selector => "### SCSS Selector\nDefines the target elements for styling.",
27            ScssElementType::Property => "### SCSS Property\nDefines a style attribute.",
28            ScssElementType::VariableDeclaration => "### SCSS Variable\nDefines a reusable value.",
29            _ => return None,
30        };
31        Some(Hover { contents: contents.to_string(), range: Some(node.span()) })
32    }
33}
34/// Language service implementation for SCSS.
35#[cfg(feature = "lsp")]
36pub struct ScssLanguageService<V: Vfs> {
37    vfs: V,
38    workspace: oak_lsp::workspace::WorkspaceManager,
39    hover_provider: ScssHoverProvider,
40}
41impl<V: Vfs> ScssLanguageService<V> {
42    /// Creates a new `ScssLanguageService`.
43    pub fn new(vfs: V) -> Self {
44        Self { vfs, workspace: oak_lsp::workspace::WorkspaceManager::default(), hover_provider: ScssHoverProvider }
45    }
46}
47impl<V: Vfs + Send + Sync + 'static + oak_vfs::WritableVfs> LanguageService for ScssLanguageService<V> {
48    type Lang = ScssLanguage;
49    type Vfs = V;
50    fn vfs(&self) -> &Self::Vfs {
51        &self.vfs
52    }
53    fn workspace(&self) -> &oak_lsp::workspace::WorkspaceManager {
54        &self.workspace
55    }
56    fn get_root(&self, _uri: &str) -> impl Future<Output = Option<RedNode<'_, ScssLanguage>>> + Send + '_ {
57        async move {
58            // TODO: Implement proper caching of parsed trees in LanguageService
59            None
60        }
61    }
62    fn hover(&self, uri: &str, range: Range<usize>) -> impl Future<Output = Option<oak_lsp::Hover>> + Send + '_ {
63        let uri = uri.to_string();
64        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() }
65    }
66}
oak_scss/lsp/mod.rs

oak_scss/lsp/
mod.rs
