Skip to main content

DevelopmentNodeEnvironment_MicrosoftVSCodeDependency_22NodeVersion_Bundle_Clean_Debug_ElectronProfile_EsbuildCompiler_Mountain/RPC/CocoonService/Provider/
ProvideHover.rs

1//! Look up a hover from the registered provider. Joins multiple content
2//! pieces with a Markdown horizontal-rule separator.
3
4use tonic::{Response, Status};
5use url::Url;
6use CommonLibrary::LanguageFeature::{
7	DTO::PositionDTO::PositionDTO,
8	LanguageFeatureProviderRegistry::LanguageFeatureProviderRegistry,
9};
10
11use crate::{
12	RPC::CocoonService::CocoonServiceImpl,
13	Vine::Generated::{Position, ProvideHoverRequest, ProvideHoverResponse, Range},
14	dev_log,
15};
16
17pub async fn Fn(
18	Service:&CocoonServiceImpl,
19
20	Request:ProvideHoverRequest,
21) -> Result<Response<ProvideHoverResponse>, Status> {
22	let URI = Request.uri.as_ref().map(|U| U.value.as_str()).unwrap_or("");
23
24	let Position_ = Request.position.as_ref();
25
26	let Line = Position_.map(|P| P.line).unwrap_or(0);
27
28	let Character = Position_.map(|P| P.character).unwrap_or(0);
29
30	dev_log!(
31		"provider",
32		"ProvideHover entry handle={} uri={} line={} char={}",
33		Request.provider_handle,
34		URI,
35		Line,
36		Character
37	);
38
39	let DocumentURI = Url::parse(URI).map_err(|E| Status::invalid_argument(format!("Invalid URI: {}", E)))?;
40
41	let PositionDTO_ = PositionDTO { LineNumber:Line, Column:Character };
42
43	match Service.environment.ProvideHover(DocumentURI, PositionDTO_).await {
44		Ok(Some(Hover)) => {
45			let Markdown = Hover
46				.Contents
47				.iter()
48				.map(|C| C.Value.as_str())
49				.collect::<Vec<_>>()
50				.join("\n---\n");
51
52			let RangeOption = Hover.Range.map(|R| {
53				Range {
54					start:Some(Position { line:R.StartLineNumber, character:R.StartColumn }),
55					end:Some(Position { line:R.EndLineNumber, character:R.EndColumn }),
56				}
57			});
58
59			dev_log!(
60				"provider",
61				"ProvideHover result handle={} contents_len={} hasRange={}",
62				Request.provider_handle,
63				Markdown.len(),
64				RangeOption.is_some()
65			);
66
67			Ok(Response::new(ProvideHoverResponse { markdown:Markdown, range:RangeOption }))
68		},
69
70		Ok(None) => {
71			dev_log!(
72				"provider",
73				"ProvideHover result handle={} (no provider)",
74				Request.provider_handle
75			);
76
77			Ok(Response::new(ProvideHoverResponse { markdown:String::new(), range:None }))
78		},
79
80		Err(Error) => {
81			dev_log!(
82				"provider",
83				"warn: ProvideHover failed handle={} err={}",
84				Request.provider_handle,
85				Error
86			);
87
88			Err(Status::internal(format!("Hover failed: {}", Error)))
89		},
90	}
91}