639 lines
24 KiB
Rust
639 lines
24 KiB
Rust
use anyhow::{anyhow, Context, Result};
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use async_compression::futures::bufread::GzipDecoder;
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use client::http::{self, HttpClient, Method};
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use futures::{future::BoxFuture, FutureExt, StreamExt};
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pub use language::*;
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use lazy_static::lazy_static;
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use regex::Regex;
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use rust_embed::RustEmbed;
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use serde::Deserialize;
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use smol::fs::{self, File};
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use std::{
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borrow::Cow,
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env::consts,
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path::{Path, PathBuf},
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str,
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sync::Arc,
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};
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use util::{ResultExt, TryFutureExt};
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#[derive(RustEmbed)]
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#[folder = "languages"]
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struct LanguageDir;
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struct RustLsp;
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struct CLsp;
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#[derive(Deserialize)]
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struct GithubRelease {
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name: String,
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assets: Vec<GithubReleaseAsset>,
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}
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#[derive(Deserialize)]
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struct GithubReleaseAsset {
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name: String,
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browser_download_url: http::Url,
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}
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impl LspExt for RustLsp {
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fn fetch_latest_server_version(
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&self,
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http: Arc<dyn HttpClient>,
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) -> BoxFuture<'static, Result<LspBinaryVersion>> {
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async move {
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let release = http
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.send(
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surf::RequestBuilder::new(
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Method::Get,
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http::Url::parse(
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"https://api.github.com/repos/rust-analyzer/rust-analyzer/releases/latest",
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)
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.unwrap(),
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)
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.middleware(surf::middleware::Redirect::default())
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.build(),
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)
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.await
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.map_err(|err| anyhow!("error fetching latest release: {}", err))?
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.body_json::<GithubRelease>()
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.await
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.map_err(|err| anyhow!("error parsing latest release: {}", err))?;
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let asset_name = format!("rust-analyzer-{}-apple-darwin.gz", consts::ARCH);
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let asset = release
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.assets
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.iter()
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.find(|asset| asset.name == asset_name)
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.ok_or_else(|| anyhow!("no release found matching {:?}", asset_name))?;
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Ok(LspBinaryVersion {
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name: release.name,
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url: asset.browser_download_url.clone(),
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})
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}
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.boxed()
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}
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fn fetch_server_binary(
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&self,
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version: LspBinaryVersion,
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http: Arc<dyn HttpClient>,
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download_dir: Arc<Path>,
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) -> BoxFuture<'static, Result<PathBuf>> {
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async move {
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let destination_dir_path = download_dir.join("rust-analyzer");
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fs::create_dir_all(&destination_dir_path).await?;
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let destination_path =
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destination_dir_path.join(format!("rust-analyzer-{}", version.name));
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if fs::metadata(&destination_path).await.is_err() {
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let response = http
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.send(
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surf::RequestBuilder::new(Method::Get, version.url)
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.middleware(surf::middleware::Redirect::default())
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.build(),
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)
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.await
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.map_err(|err| anyhow!("error downloading release: {}", err))?;
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let decompressed_bytes = GzipDecoder::new(response);
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let mut file = File::create(&destination_path).await?;
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futures::io::copy(decompressed_bytes, &mut file).await?;
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fs::set_permissions(
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&destination_path,
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<fs::Permissions as fs::unix::PermissionsExt>::from_mode(0o755),
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)
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.await?;
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if let Some(mut entries) = fs::read_dir(&destination_dir_path).await.log_err() {
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while let Some(entry) = entries.next().await {
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if let Some(entry) = entry.log_err() {
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let entry_path = entry.path();
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if entry_path.as_path() != destination_path {
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fs::remove_file(&entry_path).await.log_err();
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}
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}
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}
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}
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}
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Ok(destination_path)
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}
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.boxed()
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}
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fn cached_server_binary(&self, download_dir: Arc<Path>) -> BoxFuture<'static, Option<PathBuf>> {
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async move {
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let destination_dir_path = download_dir.join("rust-analyzer");
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fs::create_dir_all(&destination_dir_path).await?;
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let mut last = None;
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let mut entries = fs::read_dir(&destination_dir_path).await?;
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while let Some(entry) = entries.next().await {
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last = Some(entry?.path());
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}
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last.ok_or_else(|| anyhow!("no cached binary"))
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}
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.log_err()
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.boxed()
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}
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fn process_diagnostics(&self, params: &mut lsp::PublishDiagnosticsParams) {
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lazy_static! {
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static ref REGEX: Regex = Regex::new("(?m)`([^`]+)\n`$").unwrap();
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}
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for diagnostic in &mut params.diagnostics {
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for message in diagnostic
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.related_information
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.iter_mut()
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.flatten()
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.map(|info| &mut info.message)
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.chain([&mut diagnostic.message])
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{
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if let Cow::Owned(sanitized) = REGEX.replace_all(message, "`$1`") {
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*message = sanitized;
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}
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}
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}
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}
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fn label_for_completion(
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&self,
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completion: &lsp::CompletionItem,
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language: &Language,
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) -> Option<CodeLabel> {
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match completion.kind {
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Some(lsp::CompletionItemKind::FIELD) if completion.detail.is_some() => {
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let detail = completion.detail.as_ref().unwrap();
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let name = &completion.label;
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let text = format!("{}: {}", name, detail);
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let source = Rope::from(format!("struct S {{ {} }}", text).as_str());
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let runs = language.highlight_text(&source, 11..11 + text.len());
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return Some(CodeLabel {
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text,
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runs,
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filter_range: 0..name.len(),
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});
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}
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Some(lsp::CompletionItemKind::CONSTANT | lsp::CompletionItemKind::VARIABLE)
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if completion.detail.is_some() =>
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{
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let detail = completion.detail.as_ref().unwrap();
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let name = &completion.label;
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let text = format!("{}: {}", name, detail);
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let source = Rope::from(format!("let {} = ();", text).as_str());
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let runs = language.highlight_text(&source, 4..4 + text.len());
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return Some(CodeLabel {
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text,
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runs,
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filter_range: 0..name.len(),
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});
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}
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Some(lsp::CompletionItemKind::FUNCTION | lsp::CompletionItemKind::METHOD)
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if completion.detail.is_some() =>
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{
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lazy_static! {
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static ref REGEX: Regex = Regex::new("\\(…?\\)").unwrap();
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}
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let detail = completion.detail.as_ref().unwrap();
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if detail.starts_with("fn(") {
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let text = REGEX.replace(&completion.label, &detail[2..]).to_string();
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let source = Rope::from(format!("fn {} {{}}", text).as_str());
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let runs = language.highlight_text(&source, 3..3 + text.len());
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return Some(CodeLabel {
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filter_range: 0..completion.label.find('(').unwrap_or(text.len()),
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text,
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runs,
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});
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}
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}
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Some(kind) => {
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let highlight_name = match kind {
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lsp::CompletionItemKind::STRUCT
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| lsp::CompletionItemKind::INTERFACE
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| lsp::CompletionItemKind::ENUM => Some("type"),
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lsp::CompletionItemKind::ENUM_MEMBER => Some("variant"),
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lsp::CompletionItemKind::KEYWORD => Some("keyword"),
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lsp::CompletionItemKind::VALUE | lsp::CompletionItemKind::CONSTANT => {
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Some("constant")
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}
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_ => None,
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};
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let highlight_id = language.grammar()?.highlight_id_for_name(highlight_name?)?;
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let mut label = CodeLabel::plain(completion.label.clone(), None);
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label.runs.push((
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0..label.text.rfind('(').unwrap_or(label.text.len()),
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highlight_id,
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));
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return Some(label);
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}
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_ => {}
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}
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None
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}
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fn label_for_symbol(
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&self,
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name: &str,
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kind: lsp::SymbolKind,
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language: &Language,
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) -> Option<CodeLabel> {
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let (text, filter_range, display_range) = match kind {
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lsp::SymbolKind::METHOD | lsp::SymbolKind::FUNCTION => {
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let text = format!("fn {} () {{}}", name);
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let filter_range = 3..3 + name.len();
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let display_range = 0..filter_range.end;
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(text, filter_range, display_range)
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}
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lsp::SymbolKind::STRUCT => {
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let text = format!("struct {} {{}}", name);
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let filter_range = 7..7 + name.len();
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let display_range = 0..filter_range.end;
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(text, filter_range, display_range)
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}
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lsp::SymbolKind::ENUM => {
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let text = format!("enum {} {{}}", name);
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let filter_range = 5..5 + name.len();
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let display_range = 0..filter_range.end;
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(text, filter_range, display_range)
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}
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lsp::SymbolKind::INTERFACE => {
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let text = format!("trait {} {{}}", name);
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let filter_range = 6..6 + name.len();
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let display_range = 0..filter_range.end;
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(text, filter_range, display_range)
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}
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lsp::SymbolKind::CONSTANT => {
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let text = format!("const {}: () = ();", name);
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let filter_range = 6..6 + name.len();
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let display_range = 0..filter_range.end;
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(text, filter_range, display_range)
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}
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lsp::SymbolKind::MODULE => {
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let text = format!("mod {} {{}}", name);
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let filter_range = 4..4 + name.len();
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let display_range = 0..filter_range.end;
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(text, filter_range, display_range)
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}
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lsp::SymbolKind::TYPE_PARAMETER => {
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let text = format!("type {} {{}}", name);
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let filter_range = 5..5 + name.len();
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let display_range = 0..filter_range.end;
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(text, filter_range, display_range)
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}
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_ => return None,
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};
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Some(CodeLabel {
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runs: language.highlight_text(&text.as_str().into(), display_range.clone()),
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text: text[display_range].to_string(),
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filter_range,
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})
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}
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}
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impl LspExt for CLsp {
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fn fetch_latest_server_version(
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&self,
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http: Arc<dyn HttpClient>,
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) -> BoxFuture<'static, Result<LspBinaryVersion>> {
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async move {
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let release = http
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.send(
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surf::RequestBuilder::new(
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Method::Get,
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http::Url::parse(
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"https://api.github.com/repos/clangd/clangd/releases/latest",
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)
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.unwrap(),
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)
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.middleware(surf::middleware::Redirect::default())
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.build(),
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)
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.await
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.map_err(|err| anyhow!("error fetching latest release: {}", err))?
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.body_json::<GithubRelease>()
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.await
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.map_err(|err| anyhow!("error parsing latest release: {}", err))?;
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let asset_name = format!("clangd-mac-{}.zip", release.name);
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let asset = release
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.assets
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.iter()
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.find(|asset| asset.name == asset_name)
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.ok_or_else(|| anyhow!("no release found matching {:?}", asset_name))?;
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Ok(LspBinaryVersion {
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name: release.name,
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url: asset.browser_download_url.clone(),
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})
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}
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.boxed()
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}
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fn fetch_server_binary(
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&self,
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version: LspBinaryVersion,
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http: Arc<dyn HttpClient>,
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download_dir: Arc<Path>,
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) -> BoxFuture<'static, Result<PathBuf>> {
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async move {
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let container_dir = download_dir.join("clangd");
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fs::create_dir_all(&container_dir)
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.await
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.context("failed to create container directory")?;
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let zip_path = container_dir.join(format!("clangd_{}.zip", version.name));
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let version_dir = container_dir.join(format!("clangd_{}", version.name));
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let binary_path = version_dir.join("bin/clangd");
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if fs::metadata(&binary_path).await.is_err() {
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let response = http
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.send(
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surf::RequestBuilder::new(Method::Get, version.url)
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.middleware(surf::middleware::Redirect::default())
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.build(),
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)
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.await
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.map_err(|err| anyhow!("error downloading release: {}", err))?;
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let mut file = File::create(&zip_path).await?;
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if !response.status().is_success() {
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Err(anyhow!(
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"download failed with status {}",
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response.status().to_string()
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))?;
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}
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futures::io::copy(response, &mut file).await?;
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let unzip_status = smol::process::Command::new("unzip")
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.current_dir(&container_dir)
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.arg(&zip_path)
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.output()
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.await?
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.status;
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if !unzip_status.success() {
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Err(anyhow!("failed to unzip clangd archive"))?;
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}
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if let Some(mut entries) = fs::read_dir(&container_dir).await.log_err() {
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while let Some(entry) = entries.next().await {
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if let Some(entry) = entry.log_err() {
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let entry_path = entry.path();
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if entry_path.as_path() != version_dir {
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fs::remove_dir_all(&entry_path).await.log_err();
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}
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}
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}
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}
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}
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Ok(binary_path)
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}
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.boxed()
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}
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fn cached_server_binary(&self, download_dir: Arc<Path>) -> BoxFuture<'static, Option<PathBuf>> {
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async move {
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let destination_dir_path = download_dir.join("clangd");
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fs::create_dir_all(&destination_dir_path).await?;
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let mut last_clangd_dir = None;
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let mut entries = fs::read_dir(&destination_dir_path).await?;
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while let Some(entry) = entries.next().await {
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let entry = entry?;
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if entry.file_type().await?.is_dir() {
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last_clangd_dir = Some(entry.path());
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}
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}
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let clangd_dir = last_clangd_dir.ok_or_else(|| anyhow!("no cached binary"))?;
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let clangd_bin = clangd_dir.join("bin/clangd");
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if clangd_bin.exists() {
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Ok(clangd_bin)
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} else {
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Err(anyhow!(
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"missing clangd binary in directory {:?}",
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clangd_dir
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))
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}
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}
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.log_err()
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.boxed()
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}
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|
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fn process_diagnostics(&self, _: &mut lsp::PublishDiagnosticsParams) {}
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}
|
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|
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pub fn build_language_registry() -> LanguageRegistry {
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let mut languages = LanguageRegistry::new();
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languages.set_language_server_download_dir(
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dirs::home_dir()
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.expect("failed to determine home directory")
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.join(".zed"),
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);
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languages.add(Arc::new(c()));
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languages.add(Arc::new(rust()));
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languages.add(Arc::new(markdown()));
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languages
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}
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|
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fn rust() -> Language {
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let grammar = tree_sitter_rust::language();
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let config = toml::from_slice(&LanguageDir::get("rust/config.toml").unwrap().data).unwrap();
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Language::new(config, Some(grammar))
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.with_highlights_query(load_query("rust/highlights.scm").as_ref())
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.unwrap()
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.with_brackets_query(load_query("rust/brackets.scm").as_ref())
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.unwrap()
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.with_indents_query(load_query("rust/indents.scm").as_ref())
|
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.unwrap()
|
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.with_outline_query(load_query("rust/outline.scm").as_ref())
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.unwrap()
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.with_lsp_ext(RustLsp)
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}
|
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|
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fn c() -> Language {
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let grammar = tree_sitter_c::language();
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let config = toml::from_slice(&LanguageDir::get("c/config.toml").unwrap().data).unwrap();
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Language::new(config, Some(grammar))
|
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.with_highlights_query(load_query("c/highlights.scm").as_ref())
|
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.unwrap()
|
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.with_indents_query(load_query("c/indents.scm").as_ref())
|
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.unwrap()
|
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.with_outline_query(load_query("c/outline.scm").as_ref())
|
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.unwrap()
|
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.with_lsp_ext(CLsp)
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}
|
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|
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fn markdown() -> Language {
|
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let grammar = tree_sitter_markdown::language();
|
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let config = toml::from_slice(&LanguageDir::get("markdown/config.toml").unwrap().data).unwrap();
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Language::new(config, Some(grammar))
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.with_highlights_query(load_query("markdown/highlights.scm").as_ref())
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.unwrap()
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}
|
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|
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fn load_query(path: &str) -> Cow<'static, str> {
|
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match LanguageDir::get(path).unwrap().data {
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Cow::Borrowed(s) => Cow::Borrowed(str::from_utf8(s).unwrap()),
|
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Cow::Owned(s) => Cow::Owned(String::from_utf8(s).unwrap()),
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}
|
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}
|
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|
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#[cfg(test)]
|
|
mod tests {
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use super::*;
|
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use gpui::color::Color;
|
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use language::LspExt;
|
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use theme::SyntaxTheme;
|
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|
|
#[test]
|
|
fn test_process_rust_diagnostics() {
|
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let mut params = lsp::PublishDiagnosticsParams {
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uri: lsp::Url::from_file_path("/a").unwrap(),
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version: None,
|
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diagnostics: vec![
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// no newlines
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lsp::Diagnostic {
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message: "use of moved value `a`".to_string(),
|
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..Default::default()
|
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},
|
|
// 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_rust_label_for_completion() {
|
|
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(CodeLabel {
|
|
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),
|
|
],
|
|
})
|
|
);
|
|
|
|
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(CodeLabel {
|
|
text: "len: usize".to_string(),
|
|
filter_range: 0..3,
|
|
runs: vec![(0..3, highlight_field), (5..10, highlight_type),],
|
|
})
|
|
);
|
|
|
|
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(CodeLabel {
|
|
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),
|
|
],
|
|
})
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_rust_label_for_symbol() {
|
|
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();
|
|
|
|
assert_eq!(
|
|
language.label_for_symbol("hello", lsp::SymbolKind::FUNCTION),
|
|
Some(CodeLabel {
|
|
text: "fn hello".to_string(),
|
|
filter_range: 3..8,
|
|
runs: vec![(0..2, highlight_keyword), (3..8, highlight_function)],
|
|
})
|
|
);
|
|
|
|
assert_eq!(
|
|
language.label_for_symbol("World", lsp::SymbolKind::TYPE_PARAMETER),
|
|
Some(CodeLabel {
|
|
text: "type World".to_string(),
|
|
filter_range: 5..10,
|
|
runs: vec![(0..4, highlight_keyword), (5..10, highlight_type)],
|
|
})
|
|
);
|
|
}
|
|
}
|