oak_powershell/
lsp.rs

1use crate::{kind::PowerShellSyntaxKind, language::PowerShellLanguage};
2use core::range::Range;
3use oak_core::tree::RedNode;
4use oak_hover::{Hover as ProviderHover, HoverProvider};
5use oak_lsp::{service::LanguageService, types::Hover as LspHover};
6use oak_vfs::Vfs;
7
8/// Hover provider implementation for PowerShell.
9pub struct PowerShellHoverProvider;
10
11impl HoverProvider<PowerShellLanguage> for PowerShellHoverProvider {
12    fn hover(&self, node: &RedNode<PowerShellLanguage>, _range: Range<usize>) -> Option<ProviderHover> {
13        let kind = node.green.kind;
14
15        let contents = match kind {
16            PowerShellSyntaxKind::FunctionDef => "### PowerShell Function\nA named block of code that performs a specific task.",
17            PowerShellSyntaxKind::ClassDef => "### PowerShell Class\nA blueprint for creating objects in PowerShell.",
18            PowerShellSyntaxKind::IfStatement => "### PowerShell If Statement\nA conditional statement that executes a block of code if a condition is true.",
19            _ => return None,
20        };
21
22        Some(ProviderHover { contents: contents.to_string(), range: Some(node.span()) })
23    }
24}
25
26/// Language service implementation for PowerShell.
27pub struct PowerShellLanguageService<V: Vfs> {
28    vfs: V,
29    workspace: oak_lsp::workspace::WorkspaceManager,
30    hover_provider: PowerShellHoverProvider,
31}
32
33impl<V: Vfs> PowerShellLanguageService<V> {
34    pub fn new(vfs: V) -> Self {
35        Self { vfs, workspace: oak_lsp::workspace::WorkspaceManager::default(), hover_provider: PowerShellHoverProvider }
36    }
37}
38
39impl<V: Vfs + Send + Sync + 'static + oak_vfs::WritableVfs> LanguageService for PowerShellLanguageService<V> {
40    type Lang = PowerShellLanguage;
41    type Vfs = V;
42
43    fn vfs(&self) -> &Self::Vfs {
44        &self.vfs
45    }
46
47    fn workspace(&self) -> &oak_lsp::workspace::WorkspaceManager {
48        &self.workspace
49    }
50
51    fn get_root(&self, uri: &str) -> impl futures::Future<Output = Option<RedNode<'_, PowerShellLanguage>>> + Send + '_ {
52        let _source = self.get_source(uri);
53        async move {
54            // TODO: Implement proper caching of parsed trees in LanguageService
55            None
56        }
57    }
58
59    fn hover(&self, uri: &str, range: Range<usize>) -> impl futures::Future<Output = Option<LspHover>> + Send + '_ {
60        let uri = uri.to_string();
61        async move { self.with_root(&uri, |root| self.hover_provider.hover(&root, range).map(|h| LspHover { contents: h.contents, range: h.range })).await.flatten() }
62    }
63}