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Add LspAdapter hook for processing completions, fix completion sorting from Pyright

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This commit is contained in:
Max Brunsfeld 2022-11-17 15:26:46 -08:00
parent 5020c70a04
commit bca635e5d3
4 changed files with 116 additions and 81 deletions
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12
crates/language/src/language.rs
View file

@ -135,6 +135,10 @@ impl CachedLspAdapter {
self.adapter.process_diagnostics(params).await
}
pub async fn process_completion(&self, completion_item: &mut lsp::CompletionItem) {
self.adapter.process_completion(completion_item).await
}
pub async fn label_for_completion(
&self,
completion_item: &lsp::CompletionItem,
@ -175,6 +179,8 @@ pub trait LspAdapter: 'static + Send + Sync {
async fn process_diagnostics(&self, _: &mut lsp::PublishDiagnosticsParams) {}
async fn process_completion(&self, _: &mut lsp::CompletionItem) {}
async fn label_for_completion(
&self,
_: &lsp::CompletionItem,
@ -826,6 +832,12 @@ impl Language {
}
}
pub async fn process_completion(self: &Arc<Self>, completion: &mut lsp::CompletionItem) {
if let Some(adapter) = self.adapter.as_ref() {
adapter.process_completion(completion).await;
}
}
pub async fn label_for_completion(
self: &Arc<Self>,
completion: &lsp::CompletionItem,

9
crates/language/src/proto.rs
View file

@ -426,10 +426,11 @@ pub async fn deserialize_completion(
.and_then(deserialize_anchor)
.ok_or_else(|| anyhow!("invalid old end"))?;
let lsp_completion = serde_json::from_slice(&completion.lsp_completion)?;
let label = match language {
Some(l) => l.label_for_completion(&lsp_completion).await,
None => None,
};
let mut label = None;
if let Some(language) = language {
label = language.label_for_completion(&lsp_completion).await;
}
Ok(Completion {
old_range: old_start..old_end,

157
crates/project/src/project.rs
View file

@ -3329,88 +3329,91 @@ impl Project {
let snapshot = this.snapshot();
let clipped_position = this.clip_point_utf16(position, Bias::Left);
let mut range_for_token = None;
completions.into_iter().filter_map(move |lsp_completion| {
// For now, we can only handle additional edits if they are returned
// when resolving the completion, not if they are present initially.
if lsp_completion
.additional_text_edits
.as_ref()
.map_or(false, |edits| !edits.is_empty())
{
return None;
}
let (old_range, mut new_text) = match lsp_completion.text_edit.as_ref() {
// If the language server provides a range to overwrite, then
// check that the range is valid.
Some(lsp::CompletionTextEdit::Edit(edit)) => {
let range = range_from_lsp(edit.range);
let start = snapshot.clip_point_utf16(range.start, Bias::Left);
let end = snapshot.clip_point_utf16(range.end, Bias::Left);
if start != range.start || end != range.end {
log::info!("completion out of expected range");
return None;
}
(
snapshot.anchor_before(start)..snapshot.anchor_after(end),
edit.new_text.clone(),
)
}
// If the language server does not provide a range, then infer
// the range based on the syntax tree.
None => {
if position != clipped_position {
log::info!("completion out of expected range");
return None;
}
let Range { start, end } = range_for_token
.get_or_insert_with(|| {
let offset = position.to_offset(&snapshot);
let (range, kind) = snapshot.surrounding_word(offset);
if kind == Some(CharKind::Word) {
range
} else {
offset..offset
}
})
.clone();
let text = lsp_completion
.insert_text
.as_ref()
.unwrap_or(&lsp_completion.label)
.clone();
(
snapshot.anchor_before(start)..snapshot.anchor_after(end),
text,
)
}
Some(lsp::CompletionTextEdit::InsertAndReplace(_)) => {
log::info!("unsupported insert/replace completion");
completions
.into_iter()
.filter_map(move |mut lsp_completion| {
// For now, we can only handle additional edits if they are returned
// when resolving the completion, not if they are present initially.
if lsp_completion
.additional_text_edits
.as_ref()
.map_or(false, |edits| !edits.is_empty())
{
return None;
}
};
LineEnding::normalize(&mut new_text);
let language = language.clone();
Some(async move {
let label = if let Some(language) = language {
language.label_for_completion(&lsp_completion).await
} else {
None
};
Completion {
old_range,
new_text,
label: label.unwrap_or_else(|| {
CodeLabel::plain(
lsp_completion.label.clone(),
lsp_completion.filter_text.as_deref(),
let (old_range, mut new_text) = match lsp_completion.text_edit.as_ref()
{
// If the language server provides a range to overwrite, then
// check that the range is valid.
Some(lsp::CompletionTextEdit::Edit(edit)) => {
let range = range_from_lsp(edit.range);
let start = snapshot.clip_point_utf16(range.start, Bias::Left);
let end = snapshot.clip_point_utf16(range.end, Bias::Left);
if start != range.start || end != range.end {
log::info!("completion out of expected range");
return None;
}
(
snapshot.anchor_before(start)..snapshot.anchor_after(end),
edit.new_text.clone(),
)
}),
lsp_completion,
}
}
// If the language server does not provide a range, then infer
// the range based on the syntax tree.
None => {
if position != clipped_position {
log::info!("completion out of expected range");
return None;
}
let Range { start, end } = range_for_token
.get_or_insert_with(|| {
let offset = position.to_offset(&snapshot);
let (range, kind) = snapshot.surrounding_word(offset);
if kind == Some(CharKind::Word) {
range
} else {
offset..offset
}
})
.clone();
let text = lsp_completion
.insert_text
.as_ref()
.unwrap_or(&lsp_completion.label)
.clone();
(
snapshot.anchor_before(start)..snapshot.anchor_after(end),
text,
)
}
Some(lsp::CompletionTextEdit::InsertAndReplace(_)) => {
log::info!("unsupported insert/replace completion");
return None;
}
};
LineEnding::normalize(&mut new_text);
let language = language.clone();
Some(async move {
let mut label = None;
if let Some(language) = language {
language.process_completion(&mut lsp_completion).await;
label = language.label_for_completion(&lsp_completion).await;
}
Completion {
old_range,
new_text,
label: label.unwrap_or_else(|| {
CodeLabel::plain(
lsp_completion.label.clone(),
lsp_completion.filter_text.as_deref(),
)
}),
lsp_completion,
}
})
})
})
});
Ok(futures::future::join_all(completions).await)

19
crates/zed/src/languages/python.rs
View file

@ -87,6 +87,25 @@ impl LspAdapter for PythonLspAdapter {
.log_err()
}
async fn process_completion(&self, item: &mut lsp::CompletionItem) {
// Pyright assigns each completion item a `sortText` of the form `XX.YYYY.name`.
// Where `XX` is the sorting category, `YYYY` is based on most recent usage,
// and `name` is the symbol name itself.
//
// Because the the symbol name is included, there generally are not ties when
// sorting by the `sortText`, so the symbol's fuzzy match score is not taken
// into account. Here, we remove the symbol name from the sortText in order
// to allow our own fuzzy score to be used to break ties.
//
// see https://github.com/microsoft/pyright/blob/95ef4e103b9b2f129c9320427e51b73ea7cf78bd/packages/pyright-internal/src/languageService/completionProvider.ts#LL2873
let Some(sort_text) = &mut item.sort_text else { return };
let mut parts = sort_text.split('.');
let Some(first) = parts.next() else { return };
let Some(second) = parts.next() else { return };
let Some(_) = parts.next() else { return };
sort_text.replace_range(first.len() + second.len() + 1.., "");
}
async fn label_for_completion(
&self,
item: &lsp::CompletionItem,