denoland-deno/ext/web/benches/timers_ops.rs

// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.

use deno_bench_util::bench_js_async;
use deno_bench_util::bench_or_profile;
use deno_bench_util::bencher::benchmark_group;
use deno_bench_util::bencher::Bencher;
use deno_core::Extension;
use deno_core::ExtensionFileSource;
use deno_core::ExtensionFileSourceCode;

#[derive(Clone)]
struct Permissions;

impl deno_web::TimersPermission for Permissions {
  fn allow_hrtime(&mut self) -> bool {
    true
  }
}

fn setup() -> Vec<Extension> {
  vec![
    deno_webidl::deno_webidl::init_ops_and_esm(),
    deno_url::deno_url::init_ops_and_esm(),
    deno_console::deno_console::init_ops_and_esm(),
    deno_web::deno_web::init_ops_and_esm::<Permissions>(
      Default::default(),
      None,
    ),
    Extension {
      name: "bench_setup",
      esm_files: std::borrow::Cow::Borrowed(&[ExtensionFileSource {
        specifier: "ext:bench_setup/setup",
        code: ExtensionFileSourceCode::IncludedInBinary(
          r#"
            import { setTimeout, handleTimerMacrotask } from "ext:deno_web/02_timers.js";
            globalThis.setTimeout = setTimeout;
            Deno.core.setMacrotaskCallback(handleTimerMacrotask);
          "#,
        ),
      }]),
      esm_entry_point: Some("ext:bench_setup/setup"),
      op_state_fn: Some(Box::new(|state| {
        state.put(Permissions {});
      })),
      ..Default::default()
    },
  ]
}

fn bench_set_timeout(b: &mut Bencher) {
  bench_js_async(b, r#"setTimeout(() => {}, 0);"#, setup);
}

benchmark_group!(benches, bench_set_timeout,);
bench_or_profile!(benches);