mirror of
https://github.com/denoland/deno.git
synced 2024-12-27 09:39:08 -05:00
44 lines
1.6 KiB
Markdown
44 lines
1.6 KiB
Markdown
# `deno_runtime` crate
|
|
|
|
[](https://crates.io/crates/deno_runtime)
|
|
[](https://docs.rs/deno_runtime)
|
|
|
|
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.
|