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|
//! Fully integrated benchmarks for rust-analyzer, which load real cargo
//! projects.
//!
//! The benchmark here is used to debug specific performance regressions. If you
//! notice that, eg, completion is slow in some specific case, you can modify
//! code here exercise this specific completion, and thus have a fast
//! edit/compile/test cycle.
//!
//! Note that "rust-analyzer: Run" action does not allow running a single test
//! in release mode in VS Code. There's however "rust-analyzer: Copy Run Command Line"
//! which you can use to paste the command in terminal and add `--release` manually.
use std::sync::Arc;
use ide::{CallableSnippets, Change, CompletionConfig, FilePosition, TextSize};
use ide_db::{
imports::insert_use::{ImportGranularity, InsertUseConfig},
SnippetCap,
};
use project_model::CargoConfig;
use test_utils::project_root;
use vfs::{AbsPathBuf, VfsPath};
use crate::cli::load_cargo::{load_workspace_at, LoadCargoConfig, ProcMacroServerChoice};
#[test]
fn integrated_highlighting_benchmark() {
if std::env::var("RUN_SLOW_BENCHES").is_err() {
return;
}
// Load rust-analyzer itself.
let workspace_to_load = project_root();
let file = "./crates/ide-db/src/apply_change.rs";
let cargo_config = CargoConfig::default();
let load_cargo_config = LoadCargoConfig {
load_out_dirs_from_check: true,
with_proc_macro_server: ProcMacroServerChoice::None,
prefill_caches: false,
};
let (mut host, vfs, _proc_macro) = {
let _it = stdx::timeit("workspace loading");
load_workspace_at(&workspace_to_load, &cargo_config, &load_cargo_config, &|_| {}).unwrap()
};
let file_id = {
let file = workspace_to_load.join(file);
let path = VfsPath::from(AbsPathBuf::assert(file));
vfs.file_id(&path).unwrap_or_else(|| panic!("can't find virtual file for {path}"))
};
{
let _it = stdx::timeit("initial");
let analysis = host.analysis();
analysis.highlight_as_html(file_id, false).unwrap();
}
profile::init_from("*>100");
// let _s = profile::heartbeat_span();
{
let _it = stdx::timeit("change");
let mut text = host.analysis().file_text(file_id).unwrap().to_string();
text.push_str("\npub fn _dummy() {}\n");
let mut change = Change::new();
change.change_file(file_id, Some(Arc::new(text)));
host.apply_change(change);
}
{
let _it = stdx::timeit("after change");
let _span = profile::cpu_span();
let analysis = host.analysis();
analysis.highlight_as_html(file_id, false).unwrap();
}
}
#[test]
fn integrated_completion_benchmark() {
if std::env::var("RUN_SLOW_BENCHES").is_err() {
return;
}
// Load rust-analyzer itself.
let workspace_to_load = project_root();
let file = "./crates/hir/src/lib.rs";
let cargo_config = CargoConfig::default();
let load_cargo_config = LoadCargoConfig {
load_out_dirs_from_check: true,
with_proc_macro_server: ProcMacroServerChoice::None,
prefill_caches: true,
};
let (mut host, vfs, _proc_macro) = {
let _it = stdx::timeit("workspace loading");
load_workspace_at(&workspace_to_load, &cargo_config, &load_cargo_config, &|_| {}).unwrap()
};
let file_id = {
let file = workspace_to_load.join(file);
let path = VfsPath::from(AbsPathBuf::assert(file));
vfs.file_id(&path).unwrap_or_else(|| panic!("can't find virtual file for {path}"))
};
{
let _it = stdx::timeit("initial");
let analysis = host.analysis();
analysis.highlight_as_html(file_id, false).unwrap();
}
profile::init_from("*>5");
// let _s = profile::heartbeat_span();
let completion_offset = {
let _it = stdx::timeit("change");
let mut text = host.analysis().file_text(file_id).unwrap().to_string();
let completion_offset =
patch(&mut text, "db.struct_data(self.id)", "sel;\ndb.struct_data(self.id)")
+ "sel".len();
let mut change = Change::new();
change.change_file(file_id, Some(Arc::new(text)));
host.apply_change(change);
completion_offset
};
{
let _p = profile::span("unqualified path completion");
let _span = profile::cpu_span();
let analysis = host.analysis();
let config = CompletionConfig {
enable_postfix_completions: true,
enable_imports_on_the_fly: true,
enable_self_on_the_fly: true,
enable_private_editable: true,
callable: Some(CallableSnippets::FillArguments),
snippet_cap: SnippetCap::new(true),
insert_use: InsertUseConfig {
granularity: ImportGranularity::Crate,
prefix_kind: hir::PrefixKind::ByCrate,
enforce_granularity: true,
group: true,
skip_glob_imports: true,
},
snippets: Vec::new(),
prefer_no_std: false,
limit: None,
};
let position =
FilePosition { file_id, offset: TextSize::try_from(completion_offset).unwrap() };
analysis.completions(&config, position, None).unwrap();
}
let completion_offset = {
let _it = stdx::timeit("change");
let mut text = host.analysis().file_text(file_id).unwrap().to_string();
let completion_offset =
patch(&mut text, "sel;\ndb.struct_data(self.id)", "self.;\ndb.struct_data(self.id)")
+ "self.".len();
let mut change = Change::new();
change.change_file(file_id, Some(Arc::new(text)));
host.apply_change(change);
completion_offset
};
{
let _p = profile::span("dot completion");
let _span = profile::cpu_span();
let analysis = host.analysis();
let config = CompletionConfig {
enable_postfix_completions: true,
enable_imports_on_the_fly: true,
enable_self_on_the_fly: true,
enable_private_editable: true,
callable: Some(CallableSnippets::FillArguments),
snippet_cap: SnippetCap::new(true),
insert_use: InsertUseConfig {
granularity: ImportGranularity::Crate,
prefix_kind: hir::PrefixKind::ByCrate,
enforce_granularity: true,
group: true,
skip_glob_imports: true,
},
snippets: Vec::new(),
prefer_no_std: false,
limit: None,
};
let position =
FilePosition { file_id, offset: TextSize::try_from(completion_offset).unwrap() };
analysis.completions(&config, position, None).unwrap();
}
}
fn patch(what: &mut String, from: &str, to: &str) -> usize {
let idx = what.find(from).unwrap();
*what = what.replacen(from, to, 1);
idx
}
|
