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denoland-deno/runtime
Nayeem Rahman ceb03cfb03
refactor(core): cleanup feature flags for js source inclusion (#19463)
Remove `ExtensionFileSourceCode::LoadedFromFsDuringSnapshot` and feature
`include_js_for_snapshotting` since they leak paths that are only
applicable in this repo to embedders. Replace with feature
`exclude_js_sources`. Additionally the feature
`force_include_js_sources` allows negating it, if both features are set.
We need both of these because features are additive and there must be a
way of force including sources for snapshot creation while still having
the `exclude_js_sources` feature. `force_include_js_sources` is only set
for build deps, so sources are still excluded from the final binary.

You can also specify `force_include_js_sources` on any extension to
override the above features for that extension. Towards #19398.

But there was still the snapshot-from-snapshot situation where code
could be executed twice, I addressed that by making `mod_evaluate()` and
scripts like `core/01_core.js` behave idempotently. This allowed
unifying `ext::init_ops()` and `ext::init_ops_and_esm()` into
`ext::init()`.
2023-06-13 09:45:06 -06:00
..
examples refactor(core): cleanup feature flags for js source inclusion (#19463) 2023-06-13 09:45:06 -06:00
js feat(runtime): add WorkerLogLevel (#19316) 2023-05-30 15:34:50 +00:00
ops feat: Adaptations to support OpenBSD port (#19153) 2023-06-12 13:14:27 +03:00
permissions chore: fix flaky stdio_streams_are_locked_in_permission_prompt (#19443) 2023-06-09 13:24:39 -04:00
build.rs refactor(core): cleanup feature flags for js source inclusion (#19463) 2023-06-13 09:45:06 -06:00
Cargo.toml refactor(core): cleanup feature flags for js source inclusion (#19463) 2023-06-13 09:45:06 -06:00
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 refactor(core): cleanup feature flags for js source inclusion (#19463) 2023-06-13 09:45:06 -06:00
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 perf: add Tokio runtime monitor (#19415) 2023-06-09 11:52:51 +00:00
web_worker.rs refactor(core): cleanup feature flags for js source inclusion (#19463) 2023-06-13 09:45:06 -06:00
worker.rs refactor(core): cleanup feature flags for js source inclusion (#19463) 2023-06-13 09:45:06 -06:00
worker_bootstrap.rs feat(runtime): add WorkerLogLevel (#19316) 2023-05-30 15:34:50 +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 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.