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introduce CallInfo

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This commit is contained in:
Aleksey Kladov 2019-01-08 18:27:44 +03:00
parent e6a4383bb4
commit 256ec6e8d4
3 changed files with 33 additions and 23 deletions
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28
crates/ra_lsp_server/src/main_loop/handlers.rs
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@ -475,36 +475,30 @@ pub fn handle_signature_help(
params: req::TextDocumentPositionParams,
) -> Result<Option<req::SignatureHelp>> {
let position = params.try_conv_with(&world)?;
if let Some((descriptor, active_param)) = world.analysis().resolve_callable(position)? {
let parameters: Vec<ParameterInformation> = descriptor
.params
.iter()
if let Some(call_info) = world.analysis().call_info(position)? {
let parameters: Vec<ParameterInformation> = call_info
.parameters
.into_iter()
.map(|param| ParameterInformation {
label: ParameterLabel::Simple(param.clone()),
documentation: None,
})
.collect();
let documentation = if let Some(doc) = descriptor.doc {
Some(Documentation::MarkupContent(MarkupContent {
let documentation = call_info.doc.map(|value| {
Documentation::MarkupContent(MarkupContent {
kind: MarkupKind::Markdown,
value: doc,
}))
} else {
None
};
value,
})
});
let sig_info = SignatureInformation {
label: descriptor.label,
label: call_info.label,
documentation,
parameters: Some(parameters),
};
Ok(Some(req::SignatureHelp {
signatures: vec![sig_info],
active_signature: Some(0),
active_parameter: active_param.map(|a| a as u64),
active_parameter: call_info.active_parameter.map(|it| it as u64),
}))
} else {
Ok(None)