[][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

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

Implementations on Foreign Types

impl OptionFromWasmAbi for i8
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impl OptionFromWasmAbi for u8
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impl OptionFromWasmAbi for i16
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impl OptionFromWasmAbi for u16
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impl OptionFromWasmAbi for bool
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impl OptionFromWasmAbi for Box<[u8]>
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impl OptionFromWasmAbi for Box<[i8]>
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impl OptionFromWasmAbi for Box<[u16]>
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impl OptionFromWasmAbi for Box<[i16]>
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impl OptionFromWasmAbi for Box<[u32]>
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impl OptionFromWasmAbi for Box<[i32]>
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impl OptionFromWasmAbi for Box<[u64]>
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impl OptionFromWasmAbi for Box<[i64]>
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impl OptionFromWasmAbi for Box<[f32]>
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impl OptionFromWasmAbi for Box<[f64]>
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impl<T> OptionFromWasmAbi for Vec<T> where
    Box<[T]>: FromWasmAbi<Abi = WasmSlice>, 
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impl OptionFromWasmAbi for String
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impl OptionFromWasmAbi for Box<[JsValue]>
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Implementors