Trait neon::types::extract::TryFromJs

pub trait TryFromJs<'cx>
where
    Self: Sealed + Sized,
{
    type Error;

    // Required methods
    fn try_from_js<C>(
        cx: &mut C,
        v: Handle<'cx, JsValue>
    ) -> NeonResult<Result<Self, Self::Error>>
       where C: Context<'cx>;
    fn from_js<C>(cx: &mut C, v: Handle<'cx, JsValue>) -> NeonResult<Self>
       where C: Context<'cx>;
}

Extract Rust data from a JavaScript value

Required Associated Types

type Error

Required Methods

fn try_from_js<C>( cx: &mut C, v: Handle<'cx, JsValue> ) -> NeonResult<Result<Self, Self::Error>>

where C: Context<'cx>,

fn from_js<C>(cx: &mut C, v: Handle<'cx, JsValue>) -> NeonResult<Self>

where C: Context<'cx>,

Object Safety

This trait is not object safe.

Implementations on Foreign Types

impl<'cx> TryFromJs<'cx> for bool

type Error = TypeExpected<JsBoolean>

fn try_from_js<C>( cx: &mut C, v: Handle<'cx, JsValue> ) -> NeonResult<Result<Self, Self::Error>>

where C: Context<'cx>,

fn from_js<C>(cx: &mut C, v: Handle<'cx, JsValue>) -> NeonResult<Self>

where C: Context<'cx>,

impl<'cx> TryFromJs<'cx> for f64

type Error = TypeExpected<JsNumber>

fn try_from_js<C>( cx: &mut C, v: Handle<'cx, JsValue> ) -> NeonResult<Result<Self, Self::Error>>

where C: Context<'cx>,

fn from_js<C>(cx: &mut C, v: Handle<'cx, JsValue>) -> NeonResult<Self>

where C: Context<'cx>,

impl<'cx> TryFromJs<'cx> for ()

type Error = Infallible

fn try_from_js<C>( _cx: &mut C, _v: Handle<'cx, JsValue> ) -> NeonResult<Result<Self, Self::Error>>

where C: Context<'cx>,

fn from_js<C>(_cx: &mut C, _v: Handle<'cx, JsValue>) -> NeonResult<Self>

where C: Context<'cx>,

impl<'cx> TryFromJs<'cx> for String

type Error = TypeExpected<JsString>

fn try_from_js<C>( cx: &mut C, v: Handle<'cx, JsValue> ) -> NeonResult<Result<Self, Self::Error>>

where C: Context<'cx>,

fn from_js<C>(cx: &mut C, v: Handle<'cx, JsValue>) -> NeonResult<Self>

where C: Context<'cx>,

impl<'cx, T> TryFromJs<'cx> for Option<T>

where T: TryFromJs<'cx>,

type Error = <T as TryFromJs<'cx>>::Error

fn try_from_js<C>( cx: &mut C, v: Handle<'cx, JsValue> ) -> NeonResult<Result<Self, Self::Error>>

where C: Context<'cx>,

fn from_js<C>(cx: &mut C, v: Handle<'cx, JsValue>) -> NeonResult<Self>

where C: Context<'cx>,

impl<'cx, T> TryFromJs<'cx> for Vec<T>

where JsTypedArray<T>: Value, T: Binary,

type Error = TypeExpected<JsTypedArray<T>>

fn try_from_js<C>( cx: &mut C, v: Handle<'cx, JsValue> ) -> NeonResult<Result<Self, Self::Error>>

where C: Context<'cx>,

fn from_js<C>(cx: &mut C, v: Handle<'cx, JsValue>) -> NeonResult<Self>

where C: Context<'cx>,

Implementors

impl<'cx> TryFromJs<'cx> for ArrayBuffer

type Error = TypeExpected<JsBuffer>

impl<'cx> TryFromJs<'cx> for Buffer

type Error = TypeExpected<JsBuffer>

impl<'cx> TryFromJs<'cx> for Date

Available on crate feature napi-5 only.

type Error = TypeExpected<JsDate>

impl<'cx, T> TryFromJs<'cx> for Json<T>

where for<'de> T: Deserialize<'de>,

type Error = Error

impl<'cx, V> TryFromJs<'cx> for Handle<'cx, V>

where V: Value,

type Error = TypeExpected<V>