oak_regex/
lsp.rs

1use crate::language::RegexLanguage;
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#[allow(missing_docs)]
10pub struct RegexHoverProvider;
11
12impl HoverProvider<RegexLanguage> for RegexHoverProvider {
13    fn hover(&self, _node: &RedNode<'_, RegexLanguage>, _range: Range<usize>) -> Option<Hover> {
14        None
15    }
16}
17
18#[allow(missing_docs)]
19pub struct RegexLanguageService<V: Vfs> {
20    vfs: V,
21    workspace: oak_lsp::workspace::WorkspaceManager,
22    hover_provider: RegexHoverProvider,
23}
24
25impl<V: Vfs> RegexLanguageService<V> {
26    pub fn new(vfs: V) -> Self {
27        Self { vfs, workspace: oak_lsp::workspace::WorkspaceManager::default(), hover_provider: RegexHoverProvider }
28    }
29}
30
31impl<V: Vfs + Send + Sync + 'static + oak_vfs::WritableVfs> LanguageService for RegexLanguageService<V> {
32    type Lang = RegexLanguage;
33    type Vfs = V;
34
35    fn vfs(&self) -> &Self::Vfs {
36        &self.vfs
37    }
38    fn workspace(&self) -> &oak_lsp::workspace::WorkspaceManager {
39        &self.workspace
40    }
41
42    fn get_root(&self, uri: &str) -> impl Future<Output = Option<RedNode<'_, RegexLanguage>>> + Send + '_ {
43        let source = self.vfs().get_source(uri);
44        async move {
45            let source = source?;
46            let language = RegexLanguage::default();
47            let parser = crate::parser::RegexParser::new(&language);
48            let lexer = crate::lexer::RegexLexer::new(&language);
49            let mut cache = oak_core::parser::session::ParseSession::<RegexLanguage>::default();
50            let _output = oak_core::parser::parse(&parser, &lexer, &source, &[], &mut cache);
51            None
52        }
53    }
54
55    fn hover(&self, uri: &str, range: Range<usize>) -> impl Future<Output = Option<oak_lsp::Hover>> + Send + '_ {
56        let uri = uri.to_string();
57        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() }
58    }
59}
oak_regex/lsp.rs

oak_regex/
lsp.rs
