361 lines
14 KiB
Rust
361 lines
14 KiB
Rust
use anyhow::anyhow;
|
|
use async_compression::futures::bufread::GzipDecoder;
|
|
use client::http;
|
|
use futures::{future::BoxFuture, FutureExt, StreamExt};
|
|
use gpui::executor;
|
|
pub use language::*;
|
|
use lazy_static::lazy_static;
|
|
use regex::Regex;
|
|
use rust_embed::RustEmbed;
|
|
use serde::Deserialize;
|
|
use smol::fs::{self, File};
|
|
use std::{borrow::Cow, env::consts, path::PathBuf, str, sync::Arc};
|
|
use util::{ResultExt, TryFutureExt};
|
|
|
|
#[derive(RustEmbed)]
|
|
#[folder = "languages"]
|
|
struct LanguageDir;
|
|
|
|
struct RustLsp;
|
|
|
|
#[derive(Deserialize)]
|
|
struct GithubRelease {
|
|
name: String,
|
|
assets: Vec<GithubReleaseAsset>,
|
|
}
|
|
|
|
#[derive(Deserialize)]
|
|
struct GithubReleaseAsset {
|
|
name: String,
|
|
browser_download_url: http::Url,
|
|
}
|
|
|
|
impl RustLsp {
|
|
async fn download(destination_dir_path: PathBuf) -> anyhow::Result<PathBuf> {
|
|
let client = surf::client().with(surf::middleware::Redirect::default());
|
|
let release = client
|
|
.get("https://api.github.com/repos/rust-analyzer/rust-analyzer/releases/latest")
|
|
.recv_json::<GithubRelease>()
|
|
.await
|
|
.map_err(|err| anyhow!("error getting latest release: {}", err))?;
|
|
let release_name = format!("rust-analyzer-{}-apple-darwin.gz", consts::ARCH);
|
|
let asset = release
|
|
.assets
|
|
.iter()
|
|
.find(|asset| asset.name == release_name)
|
|
.ok_or_else(|| anyhow!("no release found matching {:?}", release_name))?;
|
|
|
|
let destination_path = destination_dir_path.join(format!("rust-analyzer-{}", release.name));
|
|
if fs::metadata(&destination_path).await.is_err() {
|
|
let response = client
|
|
.get(&asset.browser_download_url)
|
|
.send()
|
|
.await
|
|
.map_err(|err| anyhow!("error downloading release: {}", err))?;
|
|
let decompressed_bytes = GzipDecoder::new(response);
|
|
let mut file = File::create(&destination_path).await?;
|
|
futures::io::copy(decompressed_bytes, &mut file).await?;
|
|
fs::set_permissions(
|
|
&destination_path,
|
|
<fs::Permissions as fs::unix::PermissionsExt>::from_mode(0o755),
|
|
)
|
|
.await?;
|
|
}
|
|
|
|
Ok::<_, anyhow::Error>(destination_path)
|
|
}
|
|
}
|
|
|
|
impl LspExt for RustLsp {
|
|
fn server_bin_path(&self) -> BoxFuture<'static, Option<PathBuf>> {
|
|
async move {
|
|
let destination_dir_path = dirs::home_dir()
|
|
.ok_or_else(|| anyhow!("can't determine home directory"))?
|
|
.join(".zed/rust-analyzer");
|
|
fs::create_dir_all(&destination_dir_path).await?;
|
|
|
|
let mut server_bin_path = Self::download(destination_dir_path.clone()).await.log_err();
|
|
if let Some(mut entries) = fs::read_dir(&destination_dir_path).await.log_err() {
|
|
while let Some(entry) = entries.next().await {
|
|
if let Some(entry) = entry.log_err() {
|
|
let entry_path = entry.path();
|
|
if let Some(downloaded_server_path) = server_bin_path.as_ref() {
|
|
if downloaded_server_path != entry_path.as_path() {
|
|
fs::remove_file(entry_path).await.log_err();
|
|
}
|
|
} else {
|
|
server_bin_path = Some(entry_path);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
server_bin_path.ok_or_else(|| anyhow!("could not locate or download server"))
|
|
}
|
|
.log_err()
|
|
.boxed()
|
|
}
|
|
|
|
fn process_diagnostics(&self, params: &mut lsp::PublishDiagnosticsParams) {
|
|
lazy_static! {
|
|
static ref REGEX: Regex = Regex::new("(?m)`([^`]+)\n`$").unwrap();
|
|
}
|
|
|
|
for diagnostic in &mut params.diagnostics {
|
|
for message in diagnostic
|
|
.related_information
|
|
.iter_mut()
|
|
.flatten()
|
|
.map(|info| &mut info.message)
|
|
.chain([&mut diagnostic.message])
|
|
{
|
|
if let Cow::Owned(sanitized) = REGEX.replace_all(message, "`$1`") {
|
|
*message = sanitized;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
fn label_for_completion(
|
|
&self,
|
|
completion: &lsp::CompletionItem,
|
|
language: &Language,
|
|
) -> Option<CompletionLabel> {
|
|
match completion.kind {
|
|
Some(lsp::CompletionItemKind::FIELD) if completion.detail.is_some() => {
|
|
let detail = completion.detail.as_ref().unwrap();
|
|
let name = &completion.label;
|
|
let text = format!("{}: {}", name, detail);
|
|
let source = Rope::from(format!("struct S {{ {} }}", text).as_str());
|
|
let runs = language.highlight_text(&source, 11..11 + text.len());
|
|
return Some(CompletionLabel {
|
|
text,
|
|
runs,
|
|
filter_range: 0..name.len(),
|
|
left_aligned_len: name.len(),
|
|
});
|
|
}
|
|
Some(lsp::CompletionItemKind::CONSTANT | lsp::CompletionItemKind::VARIABLE)
|
|
if completion.detail.is_some() =>
|
|
{
|
|
let detail = completion.detail.as_ref().unwrap();
|
|
let name = &completion.label;
|
|
let text = format!("{}: {}", name, detail);
|
|
let source = Rope::from(format!("let {} = ();", text).as_str());
|
|
let runs = language.highlight_text(&source, 4..4 + text.len());
|
|
return Some(CompletionLabel {
|
|
text,
|
|
runs,
|
|
filter_range: 0..name.len(),
|
|
left_aligned_len: name.len(),
|
|
});
|
|
}
|
|
Some(lsp::CompletionItemKind::FUNCTION | lsp::CompletionItemKind::METHOD)
|
|
if completion.detail.is_some() =>
|
|
{
|
|
lazy_static! {
|
|
static ref REGEX: Regex = Regex::new("\\(…?\\)").unwrap();
|
|
}
|
|
|
|
let detail = completion.detail.as_ref().unwrap();
|
|
if detail.starts_with("fn(") {
|
|
let text = REGEX.replace(&completion.label, &detail[2..]).to_string();
|
|
let source = Rope::from(format!("fn {} {{}}", text).as_str());
|
|
let runs = language.highlight_text(&source, 3..3 + text.len());
|
|
return Some(CompletionLabel {
|
|
left_aligned_len: text.find("->").unwrap_or(text.len()),
|
|
filter_range: 0..completion.label.find('(').unwrap_or(text.len()),
|
|
text,
|
|
runs,
|
|
});
|
|
}
|
|
}
|
|
Some(kind) => {
|
|
let highlight_name = match kind {
|
|
lsp::CompletionItemKind::STRUCT
|
|
| lsp::CompletionItemKind::INTERFACE
|
|
| lsp::CompletionItemKind::ENUM => Some("type"),
|
|
lsp::CompletionItemKind::ENUM_MEMBER => Some("variant"),
|
|
lsp::CompletionItemKind::KEYWORD => Some("keyword"),
|
|
lsp::CompletionItemKind::VALUE | lsp::CompletionItemKind::CONSTANT => {
|
|
Some("constant")
|
|
}
|
|
_ => None,
|
|
};
|
|
let highlight_id = language.grammar()?.highlight_id_for_name(highlight_name?)?;
|
|
let mut label = CompletionLabel::plain(&completion);
|
|
label.runs.push((
|
|
0..label.text.rfind('(').unwrap_or(label.text.len()),
|
|
highlight_id,
|
|
));
|
|
return Some(label);
|
|
}
|
|
_ => {}
|
|
}
|
|
None
|
|
}
|
|
}
|
|
|
|
pub fn build_language_registry(executor: &Arc<executor::Background>) -> LanguageRegistry {
|
|
let mut languages = LanguageRegistry::new();
|
|
languages.add(Arc::new(rust()), executor);
|
|
languages.add(Arc::new(markdown()), executor);
|
|
languages
|
|
}
|
|
|
|
fn rust() -> Language {
|
|
let grammar = tree_sitter_rust::language();
|
|
let config = toml::from_slice(&LanguageDir::get("rust/config.toml").unwrap().data).unwrap();
|
|
Language::new(config, Some(grammar))
|
|
.with_highlights_query(load_query("rust/highlights.scm").as_ref())
|
|
.unwrap()
|
|
.with_brackets_query(load_query("rust/brackets.scm").as_ref())
|
|
.unwrap()
|
|
.with_indents_query(load_query("rust/indents.scm").as_ref())
|
|
.unwrap()
|
|
.with_outline_query(load_query("rust/outline.scm").as_ref())
|
|
.unwrap()
|
|
.with_lsp_ext(RustLsp)
|
|
}
|
|
|
|
fn markdown() -> Language {
|
|
let grammar = tree_sitter_markdown::language();
|
|
let config = toml::from_slice(&LanguageDir::get("markdown/config.toml").unwrap().data).unwrap();
|
|
Language::new(config, Some(grammar))
|
|
.with_highlights_query(load_query("markdown/highlights.scm").as_ref())
|
|
.unwrap()
|
|
}
|
|
|
|
fn load_query(path: &str) -> Cow<'static, str> {
|
|
match LanguageDir::get(path).unwrap().data {
|
|
Cow::Borrowed(s) => Cow::Borrowed(str::from_utf8(s).unwrap()),
|
|
Cow::Owned(s) => Cow::Owned(String::from_utf8(s).unwrap()),
|
|
}
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use super::*;
|
|
use gpui::color::Color;
|
|
use language::LspExt;
|
|
use theme::SyntaxTheme;
|
|
|
|
#[test]
|
|
fn test_process_rust_diagnostics() {
|
|
let mut params = lsp::PublishDiagnosticsParams {
|
|
uri: lsp::Url::from_file_path("/a").unwrap(),
|
|
version: None,
|
|
diagnostics: vec![
|
|
// no newlines
|
|
lsp::Diagnostic {
|
|
message: "use of moved value `a`".to_string(),
|
|
..Default::default()
|
|
},
|
|
// newline at the end of a code span
|
|
lsp::Diagnostic {
|
|
message: "consider importing this struct: `use b::c;\n`".to_string(),
|
|
..Default::default()
|
|
},
|
|
// code span starting right after a newline
|
|
lsp::Diagnostic {
|
|
message: "cannot borrow `self.d` as mutable\n`self` is a `&` reference"
|
|
.to_string(),
|
|
..Default::default()
|
|
},
|
|
],
|
|
};
|
|
RustLsp.process_diagnostics(&mut params);
|
|
|
|
assert_eq!(params.diagnostics[0].message, "use of moved value `a`");
|
|
|
|
// remove trailing newline from code span
|
|
assert_eq!(
|
|
params.diagnostics[1].message,
|
|
"consider importing this struct: `use b::c;`"
|
|
);
|
|
|
|
// do not remove newline before the start of code span
|
|
assert_eq!(
|
|
params.diagnostics[2].message,
|
|
"cannot borrow `self.d` as mutable\n`self` is a `&` reference"
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_process_rust_completions() {
|
|
let language = rust();
|
|
let grammar = language.grammar().unwrap();
|
|
let theme = SyntaxTheme::new(vec![
|
|
("type".into(), Color::green().into()),
|
|
("keyword".into(), Color::blue().into()),
|
|
("function".into(), Color::red().into()),
|
|
("property".into(), Color::white().into()),
|
|
]);
|
|
|
|
language.set_theme(&theme);
|
|
|
|
let highlight_function = grammar.highlight_id_for_name("function").unwrap();
|
|
let highlight_type = grammar.highlight_id_for_name("type").unwrap();
|
|
let highlight_keyword = grammar.highlight_id_for_name("keyword").unwrap();
|
|
let highlight_field = grammar.highlight_id_for_name("property").unwrap();
|
|
|
|
assert_eq!(
|
|
language.label_for_completion(&lsp::CompletionItem {
|
|
kind: Some(lsp::CompletionItemKind::FUNCTION),
|
|
label: "hello(…)".to_string(),
|
|
detail: Some("fn(&mut Option<T>) -> Vec<T>".to_string()),
|
|
..Default::default()
|
|
}),
|
|
Some(CompletionLabel {
|
|
text: "hello(&mut Option<T>) -> Vec<T>".to_string(),
|
|
filter_range: 0..5,
|
|
runs: vec![
|
|
(0..5, highlight_function),
|
|
(7..10, highlight_keyword),
|
|
(11..17, highlight_type),
|
|
(18..19, highlight_type),
|
|
(25..28, highlight_type),
|
|
(29..30, highlight_type),
|
|
],
|
|
left_aligned_len: 22,
|
|
})
|
|
);
|
|
|
|
assert_eq!(
|
|
language.label_for_completion(&lsp::CompletionItem {
|
|
kind: Some(lsp::CompletionItemKind::FIELD),
|
|
label: "len".to_string(),
|
|
detail: Some("usize".to_string()),
|
|
..Default::default()
|
|
}),
|
|
Some(CompletionLabel {
|
|
text: "len: usize".to_string(),
|
|
filter_range: 0..3,
|
|
runs: vec![(0..3, highlight_field), (5..10, highlight_type),],
|
|
left_aligned_len: 3,
|
|
})
|
|
);
|
|
|
|
assert_eq!(
|
|
language.label_for_completion(&lsp::CompletionItem {
|
|
kind: Some(lsp::CompletionItemKind::FUNCTION),
|
|
label: "hello(…)".to_string(),
|
|
detail: Some("fn(&mut Option<T>) -> Vec<T>".to_string()),
|
|
..Default::default()
|
|
}),
|
|
Some(CompletionLabel {
|
|
text: "hello(&mut Option<T>) -> Vec<T>".to_string(),
|
|
filter_range: 0..5,
|
|
runs: vec![
|
|
(0..5, highlight_function),
|
|
(7..10, highlight_keyword),
|
|
(11..17, highlight_type),
|
|
(18..19, highlight_type),
|
|
(25..28, highlight_type),
|
|
(29..30, highlight_type),
|
|
],
|
|
left_aligned_len: 22,
|
|
})
|
|
);
|
|
}
|
|
}
|