oak_handlebars/lsp/
mod.rs

1#![doc = include_str!("readme.md")]
2#[cfg(feature = "oak-highlight")]
3pub mod highlighter;
4
5use crate::{HandlebarsElementType, HandlebarsLanguage};
6use core::range::Range;
7use oak_core::tree::RedNode;
8#[cfg(feature = "lsp")]
9use {
10    futures::Future,
11    oak_hover::{Hover, HoverProvider},
12    oak_lsp::service::LanguageService,
13    oak_vfs::Vfs,
14};
15/// Hover provider implementation for Handlebars.
16#[cfg(feature = "lsp")]
17pub struct HandlebarsHoverProvider;
18#[cfg(feature = "lsp")]
19impl HoverProvider<HandlebarsLanguage> for HandlebarsHoverProvider {
20    fn hover(&self, node: &RedNode<HandlebarsLanguage>, _range: Range<usize>) -> Option<Hover> {
21        let kind = node.green.kind;
22        // Provide context-aware hover information
23        let contents = match kind {
24            HandlebarsElementType::Mustache => "### Handlebars Mustache\nA basic template expression.",
25            HandlebarsElementType::Block => "### Handlebars Block\nA block helper expression.",
26            HandlebarsElementType::Partial => "### Handlebars Partial\nIncludes another template.",
27            HandlebarsElementType::CommentNode => "### Handlebars Comment\nA template comment.",
28            _ => return None,
29        };
30        Some(Hover { contents: contents.to_string(), range: Some(node.span()) })
31    }
32}
33/// Language service implementation for Handlebars.
34#[cfg(feature = "lsp")]
35pub struct HandlebarsLanguageService<V: Vfs> {
36    vfs: V,
37    workspace: oak_lsp::workspace::WorkspaceManager,
38    hover_provider: HandlebarsHoverProvider,
39}
40impl<V: Vfs> HandlebarsLanguageService<V> {
41    /// Creates a new `HandlebarsLanguageService`.
42    pub fn new(vfs: V) -> Self {
43        Self { vfs, workspace: oak_lsp::workspace::WorkspaceManager::default(), hover_provider: HandlebarsHoverProvider }
44    }
45}
46impl<V: Vfs + Send + Sync + 'static + oak_vfs::WritableVfs> LanguageService for HandlebarsLanguageService<V> {
47    type Lang = HandlebarsLanguage;
48    type Vfs = V;
49    fn vfs(&self) -> &Self::Vfs {
50        &self.vfs
51    }
52    fn workspace(&self) -> &oak_lsp::workspace::WorkspaceManager {
53        &self.workspace
54    }
55    fn get_root(&self, _uri: &str) -> impl Future<Output = Option<RedNode<'_, HandlebarsLanguage>>> + Send + '_ {
56        async move {
57            // TODO: Implement proper caching and conversion to RedNode
58            None
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_handlebars/lsp/mod.rs

oak_handlebars/lsp/
mod.rs
