Trait FromWasm 

pub trait FromWasm: Sized {
    type Wire;

    // Required method
    fn from_wire(wire: Self::Wire) -> Result<Self, WireError>;
}

A type that can be received from JavaScript, crossing the ABI as Self::Wire.

Required Associated Types

type Wire

The type JavaScript actually passes.

Required Methods

fn from_wire(wire: Self::Wire) -> Result<Self, WireError>

Recovers the Rust value from the wire value.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl FromWasm for ()

Available on crate feature wasm only.

type Wire = ()

fn from_wire(wire: Self::Wire) -> Result<Self, WireError>

impl FromWasm for JsValue

Available on crate feature wasm only.

type Wire = JsValue

fn from_wire(wire: Self::Wire) -> Result<Self, WireError>

impl FromWasm for String

Available on crate feature wasm only.

type Wire = String

fn from_wire(wire: Self::Wire) -> Result<Self, WireError>

impl FromWasm for bool

Available on crate feature wasm only.

type Wire = bool

fn from_wire(wire: Self::Wire) -> Result<Self, WireError>

impl FromWasm for char

Available on crate feature wasm only.

type Wire = char

fn from_wire(wire: Self::Wire) -> Result<Self, WireError>

impl FromWasm for f32

Available on crate feature wasm only.

type Wire = f32

fn from_wire(wire: Self::Wire) -> Result<Self, WireError>

impl FromWasm for f64

Available on crate feature wasm only.

type Wire = f64

fn from_wire(wire: Self::Wire) -> Result<Self, WireError>

impl FromWasm for i8

Available on crate feature wasm only.

type Wire = i8

fn from_wire(wire: Self::Wire) -> Result<Self, WireError>

impl FromWasm for i16

Available on crate feature wasm only.

type Wire = i16

fn from_wire(wire: Self::Wire) -> Result<Self, WireError>

impl FromWasm for i32

Available on crate feature wasm only.

type Wire = i32

fn from_wire(wire: Self::Wire) -> Result<Self, WireError>

impl FromWasm for i64

Available on crate feature wasm only.

type Wire = i64

fn from_wire(wire: Self::Wire) -> Result<Self, WireError>

impl FromWasm for i128

Available on crate feature wasm only.

type Wire = i128

fn from_wire(wire: Self::Wire) -> Result<Self, WireError>

impl FromWasm for isize

Available on crate feature wasm only.

type Wire = isize

fn from_wire(wire: Self::Wire) -> Result<Self, WireError>

impl FromWasm for u8

Available on crate feature wasm only.

type Wire = u8

fn from_wire(wire: Self::Wire) -> Result<Self, WireError>

impl FromWasm for u16

Available on crate feature wasm only.

type Wire = u16

fn from_wire(wire: Self::Wire) -> Result<Self, WireError>

impl FromWasm for u32

Available on crate feature wasm only.

type Wire = u32

fn from_wire(wire: Self::Wire) -> Result<Self, WireError>

impl FromWasm for u64

Available on crate feature wasm only.

type Wire = u64

fn from_wire(wire: Self::Wire) -> Result<Self, WireError>

impl FromWasm for u128

Available on crate feature wasm only.

type Wire = u128

fn from_wire(wire: Self::Wire) -> Result<Self, WireError>

impl FromWasm for usize

Available on crate feature wasm only.

type Wire = usize

fn from_wire(wire: Self::Wire) -> Result<Self, WireError>

impl<T: FromWasm> FromWasm for Option<T>

type Wire = Option<<T as FromWasm>::Wire>

fn from_wire(wire: Self::Wire) -> Result<Self, WireError>

impl<T: FromWasm> FromWasm for Vec<T>

Vec<T> crosses as a vector of T’s wire type, so Vec<u8> stays Vec<u8> and reaches JavaScript as a Uint8Array.

type Wire = Vec<<T as FromWasm>::Wire>

fn from_wire(wire: Self::Wire) -> Result<Self, WireError>

Implementors