Crate wasm_bindgen

source ·
Expand description

Runtime support for the wasm-bindgen tool

This crate contains the runtime support necessary for wasm-bindgen the attribute and tool. Crates pull in the #[wasm_bindgen] attribute through this crate and this crate also provides JS bindings through the JsValue interface.

Re-exports

  • pub use crate::cast::JsObject;

Modules

  • closure
    Support for long-lived closures in wasm-bindgen
  • convert
    This is mostly an internal module, no stability guarantees are provided. Use at your own risk.
  • prelude
    A module which is typically glob imported.

Macros

  • link_to
    This macro takes a JS module as input and returns a URL that can be used to access it at runtime.

Structs

  • Clamped
    A wrapper type around slices and vectors for binding the Uint8ClampedArray array in JS.
  • JsError
    Convenience type for use on exported fn() -> Result<T, JsError> functions, where you wish to throw a JavaScript Error object.
  • JsStatic
    Wrapper type for imported statics.
  • JsValue
    Representation of an object owned by JS.

Traits

  • JsCast
    A trait for checked and unchecked casting between JS types.
  • UnwrapThrowExt
    An extension trait for Option<T> and Result<T, E> for unwrapping the T value, or throwing a JS error if it is not available.

Functions

  • exports
    Returns a handle to this wasm instance’s WebAssembly.Instance.prototype.exports
  • externref_heap_live_count
    Get the count of live externrefs / JsValues in wasm-bindgen’s heap.
  • function_table
    Returns a handle to this wasm instance’s WebAssembly.Table which is the indirect function table used by Rust
  • intern
    Interns Rust strings so that it’s much faster to send them to JS.
  • memory
    Returns a handle to this wasm instance’s WebAssembly.Memory
  • throw_str
    Throws a JS exception.
  • throw_val
    Rethrow a JS exception
  • unintern
    Removes a Rust string from the intern cache.