napi_h/
task.rs

1use crate::{
2  bindgen_runtime::{ToNapiValue, TypeName},
3  Env, Error, Result,
4};
5
6pub trait Task: Send + Sized {
7  type Output: Send + Sized + 'static;
8  type JsValue: ToNapiValue + TypeName;
9
10  /// Compute logic in libuv thread
11  fn compute(&mut self) -> Result<Self::Output>;
12
13  /// Into this method if `compute` return `Ok`
14  fn resolve(&mut self, env: Env, output: Self::Output) -> Result<Self::JsValue>;
15
16  /// Into this method if `compute` return `Err`
17  fn reject(&mut self, _env: Env, err: Error) -> Result<Self::JsValue> {
18    Err(err)
19  }
20
21  // after resolve or reject
22  fn finally(&mut self, _env: Env) -> Result<()> {
23    Ok(())
24  }
25}