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Load languages lazily in the background

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This commit is contained in:
Max Brunsfeld 2023-01-25 17:42:49 -08:00
parent 81ed961659
commit ddf4e1a316
12 changed files with 311 additions and 210 deletions
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122
crates/zed/src/languages.rs
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@ -1,7 +1,5 @@
use anyhow::Context;
use gpui::executor::Background;
pub use language::*;
use lazy_static::lazy_static;
use rust_embed::RustEmbed;
use std::{borrow::Cow, str, sync::Arc};
@ -32,32 +30,17 @@ mod typescript;
#[exclude = "*.rs"]
struct LanguageDir;
// TODO - Remove this once the `init` function is synchronous again.
lazy_static! {
pub static ref LANGUAGE_NAMES: Vec<String> = LanguageDir::iter()
.filter_map(|path| {
if path.ends_with("config.toml") {
let config = LanguageDir::get(&path)?;
let config = toml::from_slice::<LanguageConfig>(&config.data).ok()?;
Some(config.name.to_string())
} else {
None
}
})
.collect();
}
pub async fn init(languages: Arc<LanguageRegistry>, _executor: Arc<Background>) {
pub fn init(languages: Arc<LanguageRegistry>) {
for (name, grammar, lsp_adapter) in [
(
"c",
tree_sitter_c::language(),
Some(CachedLspAdapter::new(c::CLspAdapter).await),
Some(Box::new(c::CLspAdapter) as Box<dyn LspAdapter>),
),
(
"cpp",
tree_sitter_cpp::language(),
Some(CachedLspAdapter::new(c::CLspAdapter).await),
Some(Box::new(c::CLspAdapter)),
),
(
"css",
@ -67,17 +50,17 @@ pub async fn init(languages: Arc<LanguageRegistry>, _executor: Arc<Background>)
(
"elixir",
tree_sitter_elixir::language(),
Some(CachedLspAdapter::new(elixir::ElixirLspAdapter).await),
Some(Box::new(elixir::ElixirLspAdapter)),
),
(
"go",
tree_sitter_go::language(),
Some(CachedLspAdapter::new(go::GoLspAdapter).await),
Some(Box::new(go::GoLspAdapter)),
),
(
"json",
tree_sitter_json::language(),
Some(CachedLspAdapter::new(json::JsonLspAdapter).await),
Some(Box::new(json::JsonLspAdapter)),
),
(
"markdown",
@ -87,12 +70,12 @@ pub async fn init(languages: Arc<LanguageRegistry>, _executor: Arc<Background>)
(
"python",
tree_sitter_python::language(),
Some(CachedLspAdapter::new(python::PythonLspAdapter).await),
Some(Box::new(python::PythonLspAdapter)),
),
(
"rust",
tree_sitter_rust::language(),
Some(CachedLspAdapter::new(rust::RustLspAdapter).await),
Some(Box::new(rust::RustLspAdapter)),
),
(
"toml",
@ -102,89 +85,82 @@ pub async fn init(languages: Arc<LanguageRegistry>, _executor: Arc<Background>)
(
"tsx",
tree_sitter_typescript::language_tsx(),
Some(CachedLspAdapter::new(typescript::TypeScriptLspAdapter).await),
Some(Box::new(typescript::TypeScriptLspAdapter)),
),
(
"typescript",
tree_sitter_typescript::language_typescript(),
Some(CachedLspAdapter::new(typescript::TypeScriptLspAdapter).await),
Some(Box::new(typescript::TypeScriptLspAdapter)),
),
(
"javascript",
tree_sitter_typescript::language_tsx(),
Some(CachedLspAdapter::new(typescript::TypeScriptLspAdapter).await),
Some(Box::new(typescript::TypeScriptLspAdapter)),
),
(
"html",
tree_sitter_html::language(),
Some(CachedLspAdapter::new(html::HtmlLspAdapter).await),
Some(Box::new(html::HtmlLspAdapter)),
),
(
"ruby",
tree_sitter_ruby::language(),
Some(CachedLspAdapter::new(ruby::RubyLanguageServer).await),
Some(Box::new(ruby::RubyLanguageServer)),
),
(
"erb",
tree_sitter_embedded_template::language(),
Some(CachedLspAdapter::new(ruby::RubyLanguageServer).await),
Some(Box::new(ruby::RubyLanguageServer)),
),
(
"scheme",
tree_sitter_scheme::language(),
None, //
),
(
"racket",
tree_sitter_racket::language(),
None, //
),
("scheme", tree_sitter_scheme::language(), None),
("racket", tree_sitter_racket::language(), None),
] {
languages.add(language(name, grammar, lsp_adapter));
languages.register(name, load_config(name), grammar, lsp_adapter, load_queries);
}
}
pub(crate) fn language(
#[cfg(any(test, feature = "test-support"))]
pub async fn language(
name: &str,
grammar: tree_sitter::Language,
lsp_adapter: Option<Arc<CachedLspAdapter>>,
lsp_adapter: Option<Box<dyn LspAdapter>>,
) -> Arc<Language> {
let config = toml::from_slice(
Arc::new(
Language::new(load_config(name), Some(grammar))
.with_lsp_adapter(lsp_adapter)
.await
.with_queries(load_queries(name))
.unwrap(),
)
}
fn load_config(name: &str) -> LanguageConfig {
toml::from_slice(
&LanguageDir::get(&format!("{}/config.toml", name))
.unwrap()
.data,
)
.with_context(|| format!("failed to load config.toml for language {name:?}"))
.unwrap();
.unwrap()
}
let mut language = Language::new(config, Some(grammar));
if let Some(query) = load_query(name, "/highlights") {
language = language
.with_highlights_query(query.as_ref())
.expect("failed to evaluate highlights query");
fn load_queries(name: &str) -> LanguageQueries {
LanguageQueries {
highlights: load_query(name, "/highlights"),
brackets: load_query(name, "/brackets"),
indents: load_query(name, "/indents"),
outline: load_query(name, "/outline"),
injections: load_query(name, "/injections"),
overrides: load_query(name, "/overrides"),
}
if let Some(query) = load_query(name, "/brackets") {
language = language
.with_brackets_query(query.as_ref())
.expect("failed to load brackets query");
}
if let Some(query) = load_query(name, "/indents") {
language = language
.with_indents_query(query.as_ref())
.expect("failed to load indents query");
}
if let Some(query) = load_query(name, "/outline") {
language = language
.with_outline_query(query.as_ref())
.expect("failed to load outline query");
}
if let Some(query) = load_query(name, "/injections") {
language = language
.with_injection_query(query.as_ref())
.expect("failed to load injection query");
}
if let Some(query) = load_query(name, "/overrides") {
language = language
.with_override_query(query.as_ref())
.expect("failed to load override query");
}
if let Some(lsp_adapter) = lsp_adapter {
language = language.with_lsp_adapter(lsp_adapter)
}
Arc::new(language)
}
fn load_query(name: &str, filename_prefix: &str) -> Option<Cow<'static, str>> {