Rust analyzer hangs processing function using oxc. #20199
Description
rust analyzer version: rust-analyzer 1.90.0-nightly (a2d45f7 2025-07-07)
Repro
[package]
name = "testing"
version = "0.1.0"
edition = "2024"
[dependencies]
oxc = {version="0.76.0", default-features=false, features=["minifier"]}fn main() {
println!("Hello, world!");
}
fn foo() {
let allocator = oxc::allocator::Allocator::new();
let parser = oxc::parser::Parser::new(&allocator, "...", oxc::span::SourceType::cjs());
let mut program = parser.parse().program;
let minifier = oxc::minifier::Minifier::new(oxc::minifier::MinifierOptions::default());
minifier.build(&allocator, &mut program);
}running rust-analyzer analysis-stats . hangs processing foo
Database loaded: 537.81ms, 249minstr, 51mb (metadata 356.72ms, 2152kinstr, 454kb; build 86.95ms, 1121kinstr, 23kb)
item trees: 1
dependency lines of code: 1_544_309, item trees: 3_160
dependency item stats: traits: 1_087, impl: 16_282, mods: 3_448, macro calls: 6_129, macro rules: 1_405
Item Tree Collection: 3.39s, 28ginstr, 499mb
Total Statistics:
crates: 1, mods: 1, decls: 2, bodies: 2, adts: 0, consts: 0
Workspace:
traits: 0, macro_rules macros: 0, proc_macros: 0
lines of code: 22, item trees: 1
usages: traits: 0, impl: 0, mods: 0, macro calls: 0, macro rules: 0
Dependencies:
lines of code: 1_544_309, item trees: 3_160
declarations: traits: 1_087, impl: 16_282, mods: 3_448, macro calls: 6_129, macro rules: 1_405
Item Collection: 3.72s, 22ginstr, 438mb
Body lowering: 1.50s, 9652minstr, 152mb
1/2 50% processing: testing::foo
the same setup on rust-analyzer 1.90.0-nightly (a84ab0c 2025-07-06) completes the analysis fine in 11 seconds.