[][src]Trait wasm_bindgen::convert::OptionFromWasmAbi

pub trait OptionFromWasmAbi: FromWasmAbi {
    fn is_none(abi: &Self::Abi) -> bool;
}

Indicates that this type can be received from JS as Option<Self>.

This trait is used when implementing FromWasmAbi for Option<T>.

Required methods

fn is_none(abi: &Self::Abi) -> bool

Tests whether the argument is a "none" instance. If so it will be deserialized as None, and otherwise it will be passed to FromWasmAbi.

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Implementations on Foreign Types

impl OptionFromWasmAbi for i8[src]

impl OptionFromWasmAbi for u8[src]

impl OptionFromWasmAbi for i16[src]

impl OptionFromWasmAbi for u16[src]

impl OptionFromWasmAbi for bool[src]

impl OptionFromWasmAbi for char[src]

impl OptionFromWasmAbi for Box<[u8]>[src]

impl OptionFromWasmAbi for Box<[i8]>[src]

impl OptionFromWasmAbi for Box<[u16]>[src]

impl OptionFromWasmAbi for Box<[i16]>[src]

impl OptionFromWasmAbi for Box<[u32]>[src]

impl OptionFromWasmAbi for Box<[i32]>[src]

impl OptionFromWasmAbi for Box<[u64]>[src]

impl OptionFromWasmAbi for Box<[i64]>[src]

impl OptionFromWasmAbi for Box<[usize]>[src]

impl OptionFromWasmAbi for Box<[isize]>[src]

impl OptionFromWasmAbi for Box<[f32]>[src]

impl OptionFromWasmAbi for Box<[f64]>[src]

impl<T> OptionFromWasmAbi for Vec<T> where
    Box<[T]>: FromWasmAbi<Abi = WasmSlice>, 
[src]

impl OptionFromWasmAbi for String[src]

impl OptionFromWasmAbi for Box<[JsValue]>[src]

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Implementors

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