deno/runtime
Bartek Iwańczuk 189ccffdb9
feat: Codegen feature flags (#28920)
This commit adds "deno_features" crate that contains definitions of all
unstable features in Deno.

Based on these definitions, both Rust and JS code is generated ensuring
that the two are always in sync.

In addition some of flag handling was rewritten to use the generated
definitions, instead of hand rolling these flag definitions.

---------

Co-authored-by: snek <snek@deno.com>
2025-04-25 08:33:45 +00:00
..
examples/extension feat(compile): support for ffi and node native addons (#28934) 2025-04-17 16:01:12 -04:00
features feat: Codegen feature flags (#28920) 2025-04-25 08:33:45 +00:00
js feat: Codegen feature flags (#28920) 2025-04-25 08:33:45 +00:00
ops feat: Codegen feature flags (#28920) 2025-04-25 08:33:45 +00:00
permissions chore: forward v2.2.12 release commit to main (#29044) 2025-04-24 20:22:57 -04:00
Cargo.toml feat: Codegen feature flags (#28920) 2025-04-25 08:33:45 +00:00
clippy.toml fix: otel resiliency (#26857) 2024-11-14 12:16:28 +00:00
code_cache.rs chore: Happy New Year 2025 (#27509) 2024-12-31 19:12:39 +00:00
fmt_errors.rs fix(run): skip the cjs suggestion for mjs/mts modules (#26698) 2025-03-05 17:29:41 +00:00
fs_util.rs refactor: update deno_core and use more concrete errors (#27620) 2025-01-17 09:41:52 -08:00
inspector_server.rs refactor: reduce dependency on futures crate (#28515) 2025-03-17 14:14:19 +00:00
js.rs chore: Happy New Year 2025 (#27509) 2024-12-31 19:12:39 +00:00
lib.rs feat: Codegen feature flags (#28920) 2025-04-25 08:33:45 +00:00
permissions.rs chore: Happy New Year 2025 (#27509) 2024-12-31 19:12:39 +00:00
README.md fix (doc): Typo in runtime/README.md (#20020) 2023-12-13 17:24:32 +00:00
shared.rs feat: Codegen feature flags (#28920) 2025-04-25 08:33:45 +00:00
snapshot.rs feat(compile): support for ffi and node native addons (#28934) 2025-04-17 16:01:12 -04:00
snapshot_info.rs feat(compile): support for ffi and node native addons (#28934) 2025-04-17 16:01:12 -04:00
tokio_util.rs chore: Happy New Year 2025 (#27509) 2024-12-31 19:12:39 +00:00
transpile.rs chore: fix hmr build (#27781) 2025-01-22 18:00:36 +00:00
web_worker.rs feat(compile): support for ffi and node native addons (#28934) 2025-04-17 16:01:12 -04:00
worker.rs feat(compile): support for ffi and node native addons (#28934) 2025-04-17 16:01:12 -04:00
worker_bootstrap.rs feat(runtime): add Deno.build.standalone for telling if running in self-contained executable (#28750) 2025-04-15 17:44:28 +00:00

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 the 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.