deno/runtime
Bartek Iwańczuk 9399f7b894
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refactor: Rewrite usages of V8 inspector to the new API (#30743)
Based on https://github.com/denoland/deno_core/pull/1193.

This commit rewrites 3 parts of the system to use a new "sync"
V8 inspector API exposed by `deno_core`:
- REPL
- coverage collection
- hot module replacement

Turns out the async abstraction over V8 inspector was unnecessary
and actually greatly complicated usage of the inspector.

Towards https://github.com/denoland/deno/issues/13572
Towards https://github.com/denoland/deno/issues/13206
2025-09-17 16:11:03 +02:00
..
features 2.5.1 (#30753) 2025-09-17 01:58:00 +02:00
js feat(unstable): use Node.js setTimeout and setInterval (#29993) 2025-09-09 00:48:58 +02:00
ops chore: Rust 1.89.0 (#30364) 2025-08-09 11:11:48 +00:00
permissions 2.5.1 (#30753) 2025-09-17 01:58:00 +02:00
subprocess_windows 2.5.1 (#30753) 2025-09-17 01:58:00 +02:00
Cargo.toml 2.5.1 (#30753) 2025-09-17 01:58:00 +02:00
clippy.toml chore: fix lint warnings (#30399) 2025-08-13 20:25:57 -04:00
code_cache.rs chore: Happy New Year 2025 (#27509) 2024-12-31 19:12:39 +00:00
fmt_errors.rs fix: Add info/hint for unstable Deno.bundle API (#30682) 2025-09-10 20:29:21 +02:00
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 refactor: update to deno_path_util 0.5.2 (#30211) 2025-07-27 08:44:29 -04:00
permissions.rs refactor: remove more allocations querying for permissions (#30237) 2025-07-29 15:51:07 -04:00
README.md fix (doc): Typo in runtime/README.md (#20020) 2023-12-13 17:24:32 +00:00
shared.rs feat(bundle): runtime API for deno bundle (#29949) 2025-09-04 09:47:27 -07:00
snapshot.rs feat(bundle): runtime API for deno bundle (#29949) 2025-09-04 09:47:27 -07:00
snapshot_info.rs feat(unstable): tcp proxy for Deno.HttpClient (#30700) 2025-09-15 16:50:12 +00:00
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(unstable): support Deno.HttpClient in WebSocket (#30692) 2025-09-12 11:42:25 +02:00
worker.rs refactor: Rewrite usages of V8 inspector to the new API (#30743) 2025-09-17 16:11:03 +02:00
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.