Yehowshua/ZIm
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Utilize LSP completion itemDefaults a bit

Browse source 
Tailwind likes to throw a lot of completion data at us, this gets it to
send less. Previously it would respond to a completion with 2.5 MB JSON
blob, now it is more like 0.8 MB.

Relies on a local copy of lsp-types with the `itemDefaults` field added.
I don't have write perms to push to our fork of the crate atm, sorry :)
This commit is contained in:
Julia 2023-08-17 21:57:39 -04:00
parent 4f0fa21c04
commit a979e32127
4 changed files with 62 additions and 21 deletions
Download patch file Download diff file Expand all files Collapse all files

69
crates/project/src/lsp_command.rs
View file

@ -15,7 +15,10 @@ use language::{
range_from_lsp, range_to_lsp, Anchor, Bias, Buffer, CachedLspAdapter, CharKind, CodeAction,
Completion, OffsetRangeExt, PointUtf16, ToOffset, ToPointUtf16, Transaction, Unclipped,
};
use lsp::{DocumentHighlightKind, LanguageServer, LanguageServerId, ServerCapabilities};
use lsp::{
CompletionListItemDefaultsEditRange, DocumentHighlightKind, LanguageServer, LanguageServerId,
ServerCapabilities,
};
use std::{cmp::Reverse, ops::Range, path::Path, sync::Arc};
pub fn lsp_formatting_options(tab_size: u32) -> lsp::FormattingOptions {
@ -1341,10 +1344,16 @@ impl LspCommand for GetCompletions {
server_id: LanguageServerId,
cx: AsyncAppContext,
) -> Result<Vec<Completion>> {
let mut response_list = None;
let completions = if let Some(completions) = completions {
match completions {
lsp::CompletionResponse::Array(completions) => completions,
lsp::CompletionResponse::List(list) => list.items,
lsp::CompletionResponse::List(mut list) => {
let items = std::mem::take(&mut list.items);
response_list = Some(list);
items
}
}
} else {
Default::default()
@ -1354,6 +1363,7 @@ impl LspCommand for GetCompletions {
let language = buffer.language().cloned();
let snapshot = buffer.snapshot();
let clipped_position = buffer.clip_point_utf16(Unclipped(self.position), Bias::Left);
let mut range_for_token = None;
completions
.into_iter()
@ -1374,6 +1384,7 @@ impl LspCommand for GetCompletions {
edit.new_text.clone(),
)
}
// If the language server does not provide a range, then infer
// the range based on the syntax tree.
None => {
@ -1381,27 +1392,51 @@ impl LspCommand for GetCompletions {
log::info!("completion out of expected range");
return None;
}
let Range { start, end } = range_for_token
.get_or_insert_with(|| {
let offset = self.position.to_offset(&snapshot);
let (range, kind) = snapshot.surrounding_word(offset);
if kind == Some(CharKind::Word) {
range
} else {
offset..offset
}
})
.clone();
let default_edit_range = response_list
.as_ref()
.and_then(|list| list.item_defaults.as_ref())
.and_then(|defaults| defaults.edit_range.as_ref())
.and_then(|range| match range {
CompletionListItemDefaultsEditRange::Range(r) => Some(r),
_ => None,
});
let range = if let Some(range) = default_edit_range {
let range = range_from_lsp(range.clone());
let start = snapshot.clip_point_utf16(range.start, Bias::Left);
let end = snapshot.clip_point_utf16(range.end, Bias::Left);
if start != range.start.0 || end != range.end.0 {
log::info!("completion out of expected range");
return None;
}
snapshot.anchor_before(start)..snapshot.anchor_after(end)
} else {
range_for_token
.get_or_insert_with(|| {
let offset = self.position.to_offset(&snapshot);
let (range, kind) = snapshot.surrounding_word(offset);
let range = if kind == Some(CharKind::Word) {
range
} else {
offset..offset
};
snapshot.anchor_before(range.start)
..snapshot.anchor_after(range.end)
})
.clone()
};
let text = lsp_completion
.insert_text
.as_ref()
.unwrap_or(&lsp_completion.label)
.clone();
(
snapshot.anchor_before(start)..snapshot.anchor_after(end),
text,
)
(range, text)
}
Some(lsp::CompletionTextEdit::InsertAndReplace(_)) => {
log::info!("unsupported insert/replace completion");
return None;