d9279e3dd6
``` ./target/release/deno run cli/bench/async_ops_deferred.js time 794 ms rate 1259445 time 786 ms rate 1272264 time 770 ms rate 1298701 time 784 ms rate 1275510 time 775 ms rate 1290322 time 786 ms rate 1272264 time 773 ms rate 1293661 time 771 ms rate 1297016 time 774 ms rate 1291989 time 767 ms rate 1303780 time 764 ms rate 1308900 time 768 ms rate 1302083 time 763 ms rate 1310615 time 761 ms rate 1314060 time 761 ms rate 1314060 time 762 ms rate 1312335 time 763 ms rate 1310615 time 759 ms rate 1317523 time 760 ms rate 1315789 time 761 ms rate 1314060 time 769 ms rate 1300390 time 763 ms rate 1310615 time 760 ms rate 1315789 time 763 ms rate 1310615 time 761 ms rate 1314060 time 759 ms rate 1317523 time 765 ms rate 1307189 time 760 ms rate 1315789 time 764 ms rate 1308900 time 763 ms rate 1310615 time 760 ms rate 1315789 time 757 ms rate 1321003 time 763 ms rate 1310615 time 759 ms rate 1317523 time 771 ms rate 1297016 time 759 ms rate 1317523 time 759 ms rate 1317523 time 763 ms rate 1310615 time 754 ms rate 1326259 time 755 ms rate 1324503 time 762 ms rate 1312335 time 752 ms rate 1329787 time 755 ms rate 1324503 time 754 ms rate 1326259 time 759 ms rate 1317523 time 754 ms rate 1326259 time 749 ms rate 1335113 time 753 ms rate 1328021 time 756 ms rate 1322751 time 753 ms rate 1328021 ``` ``` samply record -r 20000 target/release/deno run cli/bench/async_ops_deferred.js ``` https://share.firefox.dev/43Efvm6 |
||
|---|---|---|
| .. | ||
| examples | ||
| 00_primordials.js | ||
| 01_core.js | ||
| 02_error.js | ||
| async_cancel.rs | ||
| async_cell.rs | ||
| bindings.rs | ||
| Cargo.toml | ||
| encode_decode_test.js | ||
| error.rs | ||
| error_builder_test.js | ||
| error_codes.rs | ||
| extensions.rs | ||
| fast_string.rs | ||
| flags.rs | ||
| gotham_state.rs | ||
| icudtl.dat | ||
| inspector.rs | ||
| internal.d.ts | ||
| io.rs | ||
| lib.deno_core.d.ts | ||
| lib.rs | ||
| module_specifier.rs | ||
| modules.rs | ||
| normalize_path.rs | ||
| ops.rs | ||
| ops_builtin.rs | ||
| ops_builtin_v8.rs | ||
| ops_metrics.rs | ||
| README.md | ||
| realm.rs | ||
| resources.rs | ||
| runtime.rs | ||
| serialize_deserialize_test.js | ||
| snapshot_util.rs | ||
| source_map.rs | ||
| task_queue.rs | ||
Deno Core Crate
The main dependency of this crate is rusty_v8, which provides the V8-Rust bindings.
This Rust crate contains the essential V8 bindings for Deno's command-line interface (Deno CLI). The main abstraction here is the JsRuntime which provides a way to execute JavaScript.
The JsRuntime implements an event loop abstraction for the executed code that
keeps track of all pending tasks (async ops, dynamic module loads). It is user's
responsibility to drive that loop by using JsRuntime::run_event_loop method -
it must be executed in the context of Rust's future executor (eg. tokio, smol).
Rust functions can be registered in JavaScript using deno_core::Extension. Use
the Deno.core.ops.op_name() and Deno.core.opAsync("op_name", ...) functions
to trigger the op function callback. A conventional way to write ops is using
the deno_ops crate.
Documentation for this crate is thin at the moment. Please see hello_world.rs and http_bench_json_ops.rs as examples of usage.
TypeScript support and lots of other functionality are not available at this layer. See the CLI for that.