oak_scala/
lsp.rs

1use crate::{ScalaLanguage, kind::ScalaSyntaxKind};
2use core::range::Range;
3use oak_core::tree::RedNode;
4use oak_hover::{Hover, HoverProvider};
5use oak_lsp::service::LanguageService;
6use oak_vfs::Vfs;
7use std::future::Future;
8
9/// Hover provider implementation for Scala.
10pub struct ScalaHoverProvider;
11
12impl HoverProvider<ScalaLanguage> for ScalaHoverProvider {
13    fn hover(&self, node: &RedNode<ScalaLanguage>, _range: Range<usize>) -> Option<Hover> {
14        let kind = node.green.kind;
15
16        let contents = match kind {
17            ScalaSyntaxKind::SourceFile => "### Scala Source File\nEntry point for Scala code.",
18            _ => return None,
19        };
20
21        Some(Hover { contents: contents.to_string(), range: Some(node.span()) })
22    }
23}
24
25/// Language service implementation for Scala.
26pub struct ScalaLanguageService<V: Vfs> {
27    vfs: V,
28    workspace: oak_lsp::workspace::WorkspaceManager,
29    hover_provider: ScalaHoverProvider,
30}
31
32impl<V: Vfs> ScalaLanguageService<V> {
33    pub fn new(vfs: V) -> Self {
34        Self { vfs, workspace: oak_lsp::workspace::WorkspaceManager::default(), hover_provider: ScalaHoverProvider }
35    }
36}
37
38impl<V: Vfs + Send + Sync + 'static + oak_vfs::WritableVfs> LanguageService for ScalaLanguageService<V> {
39    type Lang = ScalaLanguage;
40    type Vfs = V;
41
42    fn vfs(&self) -> &Self::Vfs {
43        &self.vfs
44    }
45
46    fn workspace(&self) -> &oak_lsp::workspace::WorkspaceManager {
47        &self.workspace
48    }
49
50    fn get_root(&self, _uri: &str) -> impl Future<Output = Option<RedNode<'_, ScalaLanguage>>> + Send + '_ {
51        async move { None }
52    }
53
54    fn hover(&self, uri: &str, range: Range<usize>) -> impl Future<Output = Option<oak_lsp::Hover>> + Send + '_ {
55        let uri = uri.to_string();
56        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() }
57    }
58}
oak_scala/lsp.rs

oak_scala/
lsp.rs
