language-servers/rust-analyzer
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Don't switch workspace on vfs file changes from libraries

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When r-a starts up, it starts switching the workspace before all vfs
events have been processed which causes us to switch workspace multiple
times until all vfs changes have been processed. This scales with the
size of the project and its dependencies. If workspace files from
dependencies as well as the sysroot get loaded, we shouldn't switch
the workspace as those have no impact on the project workspace.
This commit is contained in:
Lukas Wirth 2022-08-05 12:06:31 +02:00
parent cb52271701
commit 6a1737242b
3 changed files with 47 additions and 36 deletions
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34
crates/rust-analyzer/src/global_state.rs
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@ -8,7 +8,7 @@ use std::{sync::Arc, time::Instant};
use crossbeam_channel::{unbounded, Receiver, Sender};
use flycheck::FlycheckHandle;
use ide::{Analysis, AnalysisHost, Cancellable, Change, FileId};
use ide_db::base_db::{CrateId, FileLoader, SourceDatabase};
use ide_db::base_db::{CrateId, FileLoader, SourceDatabase, SourceDatabaseExt};
use lsp_types::{SemanticTokens, Url};
use parking_lot::{Mutex, RwLock};
use proc_macro_api::ProcMacroServer;
@ -176,7 +176,7 @@ impl GlobalState {
pub(crate) fn process_changes(&mut self) -> bool {
let _p = profile::span("GlobalState::process_changes");
let mut fs_changes = Vec::new();
let mut fs_refresh_changes = Vec::new();
// A file was added or deleted
let mut has_structure_changes = false;
@ -192,11 +192,8 @@ impl GlobalState {
if let Some(path) = vfs.file_path(file.file_id).as_path() {
let path = path.to_path_buf();
if reload::should_refresh_for_change(&path, file.change_kind) {
tracing::warn!("fetch-fiel_change");
self.fetch_workspaces_queue
.request_op(format!("vfs file change: {}", path.display()));
fs_refresh_changes.push((path, file.file_id));
}
fs_changes.push((path, file.change_kind));
if file.is_created_or_deleted() {
has_structure_changes = true;
}
@ -228,14 +225,25 @@ impl GlobalState {
self.analysis_host.apply_change(change);
let raw_database = &self.analysis_host.raw_database();
self.proc_macro_changed =
changed_files.iter().filter(|file| !file.is_created_or_deleted()).any(|file| {
let crates = raw_database.relevant_crates(file.file_id);
let crate_graph = raw_database.crate_graph();
{
let raw_database = self.analysis_host.raw_database();
let workspace_structure_change =
fs_refresh_changes.into_iter().find(|&(_, file_id)| {
!raw_database.source_root(raw_database.file_source_root(file_id)).is_library
});
if let Some((path, _)) = workspace_structure_change {
self.fetch_workspaces_queue
.request_op(format!("workspace vfs file change: {}", path.display()));
}
self.proc_macro_changed =
changed_files.iter().filter(|file| !file.is_created_or_deleted()).any(|file| {
let crates = raw_database.relevant_crates(file.file_id);
let crate_graph = raw_database.crate_graph();
crates.iter().any(|&krate| crate_graph[krate].is_proc_macro)
});
}
crates.iter().any(|&krate| crate_graph[krate].is_proc_macro)
});
true
}