deno/runtime
David Sherret 990dbc6e4e
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Revert "fix(unstable): always require --allow-read permissions for raw imports (#30184)" (#30196)
2025-07-24 22:38:04 +00:00
..
features 2.4.2 (#30123) 2025-07-16 12:51:04 +02:00
js fix: global global should be writeable (#30032) 2025-07-08 13:18:44 +02:00
ops chore: upgrade to rustls_tokio_stream 0.7 (#29898) 2025-07-10 20:27:04 +02:00
permissions Revert "fix(unstable): always require --allow-read permissions for raw imports (#30184)" (#30196) 2025-07-24 22:38:04 +00:00
subprocess_windows 2.4.2 (#30123) 2025-07-16 12:51:04 +02:00
Cargo.toml 2.4.2 (#30123) 2025-07-16 12:51:04 +02:00
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 chore: update to edition 2024 (#29923) 2025-07-02 17:59:39 -07:00
fs_util.rs refactor: update deno_core and use more concrete errors (#27620) 2025-01-17 09:41:52 -08:00
inspector_server.rs chore: update to edition 2024 (#29923) 2025-07-02 17:59:39 -07:00
js.rs chore: Happy New Year 2025 (#27509) 2024-12-31 19:12:39 +00:00
lib.rs chore: update to edition 2024 (#29923) 2025-07-02 17:59:39 -07:00
permissions.rs refactor(permissions): push down special file checking to permissions container (#30005) 2025-07-09 20:50:26 +00:00
README.md fix (doc): Typo in runtime/README.md (#20020) 2023-12-13 17:24:32 +00:00
shared.rs chore: update to edition 2024 (#29923) 2025-07-02 17:59:39 -07:00
snapshot.rs chore: update to edition 2024 (#29923) 2025-07-02 17:59:39 -07:00
snapshot_info.rs refactor(permissions): remove access check callback (#30050) 2025-07-10 21:40:20 -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 refactor: upgrade to deno_core 0.353.0 (#30164) 2025-07-22 10:38:38 -04:00
worker.rs refactor: upgrade to deno_core 0.353.0 (#30164) 2025-07-22 10:38:38 -04:00
worker_bootstrap.rs feat(unstable): tunnelling (#30022) 2025-07-08 02:44:50 +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 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.