Struct JsPromise

pub struct JsPromise<L: NapiValueT, R: NapiValueT>(/* private fields */);

Implementations

impl<L: NapiValueT + Copy, R: NapiValueT + Copy> JsPromise<L, R>

pub fn env(&self) -> NapiEnv

pub fn raw(&self) -> napi_value

pub fn value(&self) -> JsValue

pub fn new(env: NapiEnv) -> NapiResult<JsPromise<L, R>>

This API creates a deferred object and a JavaScript promise.

pub fn resolve(&self, resolution: L) -> NapiResult<()>

This API resolves a JavaScript promise by way of the deferred object with which it is associated. Thus, it can only be used to resolve JavaScript promises for which the corresponding deferred object is available. This effectively means that the promise must have been created using napi_create_promise() and the deferred object returned from that call must have been retained in order to be passed to this API.

The deferred object is freed upon successful completion.

pub fn reject(&self, rejection: R) -> NapiResult<()>

This API rejects a JavaScript promise by way of the deferred object with which it is associated. Thus, it can only be used to reject JavaScript promises for which the corresponding deferred object is available. This effectively means that the promise must have been created using napi_create_promise() and the deferred object returned from that call must have been retained in order to be passed to this API.

The deferred object is freed upon successful completion.

impl<L: NapiValueT + Copy + 'static, R: NapiValueT + Copy + 'static> JsPromise<L, R>

pub fn spawn<T>( env: NapiEnv, work: impl FnMut(&mut T) + Send + 'static, complete: impl FnMut(Self, NapiStatus, T) -> NapiResult<()> + 'static, ) -> NapiResult<JsPromise<L, R>>

where T: Default,

Spawn a busy task in the libuv pool.

Trait Implementations

impl<L: Clone + NapiValueT, R: Clone + NapiValueT> Clone for JsPromise<L, R>

fn clone(&self) -> JsPromise<L, R>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<L: Debug + NapiValueT, R: Debug + NapiValueT> Debug for JsPromise<L, R>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<L: NapiValueT + Copy, R: NapiValueT + Copy> NapiValueCheck for JsPromise<L, R>

fn check(&self) -> NapiResult<bool>

impl<L: Copy + NapiValueT, R: Copy + NapiValueT> Copy for JsPromise<L, R>