Crate wry_bindgen_core 

wry-bindgen-core

wry-bindgen-core is the minimal, stable API that wry-bindgen builds on. It exposes typed handles for talking to JavaScript: functions you can call, Rust values you can store and borrow back, and closures you can hand to JavaScript.

use wry_bindgen_core::with_runtime;

// Store a native Rust value and get back an opaque handle...
let handle = with_runtime(|rt| rt.insert_object(Counter::default()));

// ...then borrow it back by handle later.
with_runtime(|rt| {
    let mut counter = rt.object::<Counter>(handle);
    counter.tick();
});

What it provides

• JsFunction<F> — a typed handle to a JavaScript function. .call(args) runs the round-trip and returns the typed result.
• Runtime and with_runtime — a typed object store: insert a Rust value for an ObjectHandle, borrow it back, or remove it.
• LazyCell<T> / JsThreadLocal<T> — typed runtime-local JavaScript values, such as the global window.
• CallbackKey<F> — registers a Rust closure with JavaScript, with Rust-owned, JS-owned, and JS-owned-once policies.
• Clamped, BatchableResult, and RequireFlush — markers used when encoding arguments and return values.

Most of these are driven by the code wry-bindgen’s macro generates; the object store reached through with_runtime is the part you tend to use directly.

Structs

CallbackKey

Clamped

A wrapper type around slices and vectors for binding Uint8ClampedArray.

DecodeError

DecodedData

EncodedData

JsClassMemberSpec

JsExportSpec

JsFunction

A typed JS function that resolves from the active runtime on first use.

JsFunctionSpec

JsModuleSpec

JsRef

LazyCell

A runtime-local accessor for lazily initialized JavaScript values.

ObjectHandle

RequireFlush

Runtime

A handle to the active runtime, scoped to a with_runtime call.

RustCallback

TypeDef

Enums

JsClassMemberKind

Traits

BatchableResult

BinaryDecode

BinaryEncode

EncodeTypeDef

JsRefEncode

Functions

with_runtime

Run f with the active runtime.

Type Aliases

JsThreadLocal

Backwards-compatible name used by generated thread_local_v2 bindings.