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denoland-deno/runtime
Matt Mastracci a1764f7690
refactor(core): Improve ergonomics of managing ASCII strings (#18498)
This is a follow-on to the earlier work in reducing string copies,
mainly focused on ensuring that ASCII strings are easy to provide to the
JS runtime.

While we are replacing a 16-byte reference in a number of places with a
24-byte structure (measured via `std::mem::size_of`), the reduction in
copies wins out over the additional size of the arguments passed into
functions.

Benchmarking shows approximately the same if not slightly less wallclock
time/instructions retired, but I believe this continues to open up
further refactoring opportunities.
2023-04-04 06:46:31 -06:00
..
examples refactor: use default implementation of BootstrapOptions (#18439) 2023-03-26 04:38:45 +00:00
js refactor: remove "ext/flash" (#18578) 2023-04-03 19:01:02 +02:00
ops refactor: remove "ext/flash" (#18578) 2023-04-03 19:01:02 +02:00
permissions refactor: remove "ext/flash" (#18578) 2023-04-03 19:01:02 +02:00
build.rs refactor(core): Improve ergonomics of managing ASCII strings (#18498) 2023-04-04 06:46:31 -06:00
Cargo.toml refactor: remove "ext/flash" (#18578) 2023-04-03 19:01:02 +02:00
colors.rs refactor: include mitata (#18426) 2023-03-25 15:29:46 +01:00
errors.rs BREAKING(unstable): remove WebGPU (#18094) 2023-03-17 00:29:32 +01:00
fmt_errors.rs refactor: remove usages of map_or / map_or_else (#18212) 2023-03-15 17:46:36 -04:00
fs_util.rs chore: use rustfmt imports_granularity option (#17421) 2023-01-14 23:18:58 -05:00
inspector_server.rs refactor: make version and user_agent &'static str (#18400) 2023-03-23 23:27:58 +01:00
js.rs perf: disable runtime snapshot compression (#18239) 2023-03-17 08:49:46 +05:30
lib.rs refactor: remove "ext/flash" (#18578) 2023-04-03 19:01:02 +02:00
README.md chore: fix decendents in runtime readme (#9718) 2021-03-08 13:23:46 +01:00
tokio_util.rs chore: update copyright year to 2023 (#17247) 2023-01-02 21:00:42 +00:00
web_worker.rs refactor(core): Improve ergonomics of managing ASCII strings (#18498) 2023-04-04 06:46:31 -06:00
worker.rs refactor(core): Improve ergonomics of managing ASCII strings (#18498) 2023-04-04 06:46:31 -06:00
worker_bootstrap.rs refactor(runtime): manual serialization of bootstrap data (#18448) 2023-03-28 10:27:17 +02:00

deno_runtime crate

crates docs

This is a slim version of the Deno CLI which removes typescript integration and various tooling (like lint and doc). Basically only JavaScript execution with Deno's operating system bindings (ops).

Stability

This crate is built using battle-tested modules that were originally in deno crate, however the API of this crate is subject to rapid and breaking changes.

MainWorker

The main API of this crate is MainWorker. MainWorker is a structure encapsulating deno_core::JsRuntime with a set of ops used to implement Deno namespace.

When creating a MainWorker implementors must call MainWorker::bootstrap to prepare JS runtime for use.

MainWorker is highly configurable and allows to customize many of the runtime's properties:

  • module loading implementation
  • error formatting
  • support for source maps
  • support for V8 inspector and Chrome Devtools debugger
  • HTTP client user agent, CA certificate
  • random number generator seed

Worker Web API

deno_runtime comes with support for Worker Web API. The Worker API is implemented using WebWorker structure.

When creating a new instance of MainWorker implementors must provide a callback function that is used when creating a new instance of Worker.

All WebWorker instances are descendents of MainWorker which is responsible for setting up communication with child worker. Each WebWorker spawns a new OS thread that is dedicated solely to that worker.