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3b4efd339d
This PR optimizes `Event` constructor - ~Added a fast path for empty `eventInitDict`~ Removed `EventInit` dictionary converter - Don't make `isTrusted` a [LegacyUnforgeable](https://webidl.spec.whatwg.org/#LegacyUnforgeable) property. Doing so makes it non-spec compliant but calling `Object/Reflect.defineProperty` on the constructor is a big bottleneck. Node did the same a few months ago https://github.com/nodejs/node/pull/46974. In my opinion, the performance gains are worth deviating from the spec for a browser-related property. **This PR** ``` cpu: 13th Gen Intel(R) Core(TM) i9-13900H runtime: deno 1.36.1 (x86_64-unknown-linux-gnu) benchmark time (avg) iter/s (min … max) p75 p99 p995 ------------------------------------------------------------------------------- ----------------------------- event constructor no init 36.69 ns/iter 27,257,504.6 (33.36 ns … 42.45 ns) 37.71 ns 39.61 ns 40.07 ns event constructor 36.7 ns/iter 27,246,776.6 (33.35 ns … 56.03 ns) 37.73 ns 40.14 ns 41.74 ns ``` **main** ``` cpu: 13th Gen Intel(R) Core(TM) i9-13900H runtime: deno 1.36.1 (x86_64-unknown-linux-gnu) benchmark time (avg) iter/s (min … max) p75 p99 p995 ------------------------------------------------------------------------------- ----------------------------- event constructor no init 380.48 ns/iter 2,628,275.8 (366.66 ns … 399.39 ns) 384.58 ns 398.27 ns 399.39 ns event constructor 480.33 ns/iter 2,081,882.6 (466.67 ns … 503.47 ns) 484.27 ns 501.28 ns 503.47 ns ``` ```js Deno.bench("event constructor no init", () => { const event = new Event("foo"); }); Deno.bench("event constructor", () => { const event = new Event("foo", { bubbles: true, cancelable: false }); }); ``` towards https://github.com/denoland/deno/issues/20167 |
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| .. | ||
| args | ||
| bench | ||
| cache | ||
| js | ||
| lsp | ||
| napi | ||
| npm | ||
| ops | ||
| schemas | ||
| standalone | ||
| tests | ||
| tools | ||
| tsc | ||
| util | ||
| auth_tokens.rs | ||
| build.rs | ||
| Cargo.toml | ||
| deno.ico | ||
| deno_std.rs | ||
| emit.rs | ||
| errors.rs | ||
| factory.rs | ||
| file_fetcher.rs | ||
| graph_util.rs | ||
| http_util.rs | ||
| js.rs | ||
| main.rs | ||
| module_loader.rs | ||
| node.rs | ||
| README.md | ||
| resolver.rs | ||
| version.rs | ||
| worker.rs | ||
Deno CLI Crate
This provides the actual deno executable and the user-facing APIs.
The deno crate uses the deno_core to provide the executable.