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denoland-deno/runtime
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Bartek Iwańczuk f840906943
fix(core): prevent multiple main module loading (#12128) 
This commit fixes a problem where loading and executing multiple 
modules leads to all of the having "import.meta.main" set to true.

Following Rust APIs were deprecated:
- deno_core::JsRuntime::load_module
- deno_runtime::Worker::execute_module
- deno_runtime::WebWorker::execute_module

Following Rust APIs were added:
- deno_core::JsRuntime::load_main_module
- deno_core::JsRuntime::load_side_module
- deno_runtime::Worker::execute_main_module
- deno_runtime::Worker::execute_side_module
- deno_runtime::WebWorker::execute_main_module

Trying to load multiple "main" modules into the runtime now results in an
error. If user needs to load additional "non-main" modules they should use
APIs for "side" module.
2021-09-18 03:44:53 +02:00
..
examples fix(core): prevent multiple main module loading (#12128) 2021-09-18 03:44:53 +02:00
js perf(runtime/fs): optimize readFile by using a single large buffer (#12057) 2021-09-16 20:28:15 +02:00
ops chore: bump crate versions for 0.14 (#12072) 2021-09-14 15:38:35 -04:00
build.rs feat(fetch): mTLS client certificates for fetch() (#11721) 2021-08-25 14:25:12 +02:00
Cargo.toml chore: Remove unused deps from Cargo.toml files (#12106) 2021-09-17 14:39:32 +02:00
colors.rs refactor: Remove duplicated colors.rs file (#11990) 2021-09-12 12:04:17 -04:00
errors.rs chore: upgrade Rust to 1.55.0 (#11965) 2021-09-09 21:15:21 -04:00
fs_util.rs fix: do not panic on not found cwd (#10238) 2021-04-21 17:52:00 +02:00
inspector_server.rs refactor: cleanup Inspector and InspectorServer implementations (#11837) 2021-08-25 13:39:23 +02:00
js.rs refactor: unify JavaScript script execution method (#11043) 2021-06-22 01:45:41 +02:00
lib.rs feat(tls): Optionally support loading native certs (#11491) 2021-08-07 14:49:38 +02:00
metrics.rs Remove various unnecessary allow(clippy) declarations (#10971) 2021-06-15 19:22:28 +02:00
permissions.rs fix: permission prompt stuffing on Windows (#11969) 2021-09-14 08:37:27 -04:00
README.md chore: fix decendents in runtime readme (#9718) 2021-03-08 13:23:46 +01:00
tokio_util.rs upgrade: tokio 1.0 (#8779) 2021-01-11 23:50:02 -08:00
web_worker.rs fix(core): prevent multiple main module loading (#12128) 2021-09-18 03:44:53 +02:00
worker.rs fix(core): prevent multiple main module loading (#12128) 2021-09-18 03:44:53 +02:00

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.