https://github.com/ahabhgk/rusty_qjs
(WIP) Rust bindings to QuickJS
https://github.com/ahabhgk/rusty_qjs
ffi quickjs rust
Last synced: 2 months ago
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(WIP) Rust bindings to QuickJS
- Host: GitHub
- URL: https://github.com/ahabhgk/rusty_qjs
- Owner: ahabhgk
- Created: 2021-10-04T03:19:56.000Z (over 3 years ago)
- Default Branch: main
- Last Pushed: 2023-03-13T03:58:48.000Z (about 2 years ago)
- Last Synced: 2024-10-12T23:47:21.760Z (8 months ago)
- Topics: ffi, quickjs, rust
- Language: Rust
- Homepage:
- Size: 690 KB
- Stars: 8
- Watchers: 1
- Forks: 1
- Open Issues: 11
-
Metadata Files:
- Readme: README.md
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README
# (WIP) rusty_qjs
Rust bindings to QuickJS.
## Todo
- [ ] JSValue::new_... returns a Result
- [ ] specific JSValue type, like JsString, JsNumber...?
- [ ] catch unwind for extern "C" fn?
## Feature
### local
The JSValue of QuickJS is using reference counting to manage the memory. So we
create a Local handle to help you free the JSValue. The Local will call
JS_FreeValue when it drops. You can simply use `to_local` to convert a JSValue
into a Local handle, then enjoy the conveniences of it.
## Example
```rust
use rusty_qjs::{JSContext, JSRuntime, JSValue};
use std::io::Write;
fn js_print(ctx: &mut JSContext, _this: JSValue, argv: &[JSValue]) -> JSValue {
let output = argv
.iter()
.map(|value| value.to_rust_string(ctx))
.collect::>()
.join(" ");
let mut stdout = std::io::stdout();
stdout.write_all(output.as_bytes()).unwrap();
stdout.write_all(b"\n").unwrap();
JSValue::new_undefined()
}
fn setup_console(ctx: &mut JSContext) {
let global = ctx.get_global_object().to_local(ctx);
let console = JSValue::new_object(ctx).to_local(ctx);
let log = JSValue::new_function(ctx, js_print, "log", 1).to_local(ctx);
console.set_property_str("log", log).unwrap();
global.set_property_str("console", console).unwrap();
}
fn main() {
let rt = &mut JSRuntime::new();
let ctx = &mut JSContext::new(rt);
setup_console(ctx);
ctx.eval_script("console.log(\"hello world\")", "");
}
```
For a more in-depth example, look at
[qtok](https://github.com/ahabhgk/rusty_qjs/tree/main/qtok)