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denoland-deno/runtime
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Bartek Iwańczuk ad3c494b46
Revert "Reland "refactor(core): cleanup feature flags for js source i… (#19611) 
…nclusion" (#19519)"

This reverts commit 28a4f3d0f5.

This change causes failures when used outside Deno repo:
```
============================================================
Deno has panicked. This is a bug in Deno. Please report this
at https://github.com/denoland/deno/issues/new.
If you can reliably reproduce this panic, include the
reproduction steps and re-run with the RUST_BACKTRACE=1 env
var set and include the backtrace in your report.

Platform: linux x86_64
Version: 1.34.3+b37b286
Args: ["/opt/hostedtoolcache/deno/0.0.0-b37b286f7fa68d5656f7c180f6127bdc38cf2cf5/x64/deno", "test", "--doc", "--unstable", "--allow-all", "--coverage=./cov"]

thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Failed to read "/home/runner/work/deno/deno/core/00_primordials.js"

Caused by:
    No such file or directory (os error 2)', core/runtime/jsruntime.rs:699:8
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
```
2023-06-26 13:54:10 +02:00
..
examples Revert "Reland "refactor(core): cleanup feature flags for js source i… (#19611) 2023-06-26 13:54:10 +02:00
js perf: don't run microtask checkpoint if macrotask callback did no work (#19492) 2023-06-14 16:21:06 +02:00
ops refactor(serde_v8): split ZeroCopyBuf into JsBuffer and ToJsBuffer (#19566) 2023-06-22 23:37:56 +02:00
permissions chore: fix flaky stdio_streams_are_locked_in_permission_prompt (#19443) 2023-06-09 13:24:39 -04:00
build.rs Revert "Reland "refactor(core): cleanup feature flags for js source i… (#19611) 2023-06-26 13:54:10 +02:00
Cargo.toml Revert "Reland "refactor(core): cleanup feature flags for js source i… (#19611) 2023-06-26 13:54:10 +02:00
clippy.toml feat(compile): unstable npm and node specifier support (#19005) 2023-05-10 20:06:59 -04:00
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 ext/console/01_colors.js (#18927) 2023-04-30 09:11:37 +00:00
fs_util.rs feat(compile): unstable npm and node specifier support (#19005) 2023-05-10 20:06:59 -04:00
inspector_server.rs refactor(core): bake single-thread assumptions into spawn/spawn_blocking (#19056) 2023-05-14 15:40:01 -06:00
js.rs Revert "Reland "refactor(core): cleanup feature flags for js source i… (#19611) 2023-06-26 13:54:10 +02:00
lib.rs feat(runtime): add WorkerLogLevel (#19316) 2023-05-30 15:34:50 +00:00
README.md chore: fix decendents in runtime readme (#9718) 2021-03-08 13:23:46 +01:00
tokio_util.rs chore: add conditional compilation for tokio_unstable feature (#19537) 2023-06-16 17:33:28 +02:00
web_worker.rs Revert "Reland "refactor(core): cleanup feature flags for js source i… (#19611) 2023-06-26 13:54:10 +02:00
worker.rs Revert "Reland "refactor(core): cleanup feature flags for js source i… (#19611) 2023-06-26 13:54:10 +02:00
worker_bootstrap.rs feat(runtime): add WorkerLogLevel (#19316) 2023-05-30 15:34:50 +00:00

README.md

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.