oak_markdown/
lsp.rs

1use crate::{kind::MarkdownSyntaxKind, language::MarkdownLanguage};
2use core::range::Range;
3use futures::Future;
4use oak_core::tree::RedNode;
5use oak_hover::{Hover as HoverInfo, HoverProvider};
6use oak_lsp::{service::LanguageService, types::Hover as LspHover};
7use oak_vfs::Vfs;
8
9/// Hover provider for Markdown.
10pub struct MarkdownHoverProvider;
11
12impl HoverProvider<MarkdownLanguage> for MarkdownHoverProvider {
13    fn hover(&self, node: &RedNode<'_, MarkdownLanguage>, _range: Range<usize>) -> Option<HoverInfo> {
14        let kind = node.green.kind;
15
16        let contents = match kind {
17            MarkdownSyntaxKind::Heading1 => "### Heading 1\nTop-level heading.",
18            MarkdownSyntaxKind::Heading2 => "### Heading 2\nSecond-level heading.",
19            MarkdownSyntaxKind::Link => "### Markdown Link\nLink to an external resource or internal anchor.",
20            MarkdownSyntaxKind::CodeBlock => "### Code Block\nA block of source code.",
21            MarkdownSyntaxKind::Strong => "### Strong Emphasis\nBold text.",
22            MarkdownSyntaxKind::Emphasis => "### Emphasis\nItalic text.",
23            _ => return None,
24        };
25
26        Some(HoverInfo { contents: contents.to_string(), range: Some(node.span()) })
27    }
28}
29
30pub struct MarkdownLanguageService<V: Vfs> {
31    vfs: V,
32    workspace: oak_lsp::workspace::WorkspaceManager,
33    hover_provider: MarkdownHoverProvider,
34}
35
36impl<V: Vfs> MarkdownLanguageService<V> {
37    pub fn new(vfs: V) -> Self {
38        Self { vfs, workspace: oak_lsp::workspace::WorkspaceManager::new(), hover_provider: MarkdownHoverProvider }
39    }
40}
41
42impl<V: Vfs + Send + Sync + 'static + oak_vfs::WritableVfs> LanguageService for MarkdownLanguageService<V> {
43    type Lang = MarkdownLanguage;
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<'_, MarkdownLanguage>>> + Send + '_ {
55        let _source = self.get_source(uri);
56        async move {
57            // NOTE: Markdown parser is not yet implemented in this example.
58            // In a real implementation, you would call the parser here.
59            None
60        }
61    }
62
63    fn hover(&self, uri: &str, range: Range<usize>) -> impl Future<Output = Option<LspHover>> + Send + '_ {
64        let uri = uri.to_string();
65        async move { self.with_root(&uri, |root| self.hover_provider.hover(&root, range).map(|h| LspHover { contents: h.contents, range: h.range })).await.flatten() }
66    }
67}
oak_markdown/lsp.rs

oak_markdown/
lsp.rs
