Cannot return Tsify types from async methods with wasm-bindgen-futures

[hoxxep]

The crate tests are failing as per below in many cases on the js feature which means we cannot return rust types in methods and have them automatically cast to JS objects.

-        impl From<JsType> for JsValue {
-            #[inline]
-            fn from(obj: JsType) -> JsValue {
-                obj.obj.into()
-            }
-        }
-        impl JsCast for JsType {
-        ...
-        }

This is broken on both the tests on master (as per ./test.sh) and per the deployed crate.

Let me know if you're aware of a quick fix, or can point me to a likely culprit? Thanks!

[hoxxep]

The tests are failing for me locally, but I've noticed my actual issue in production occurs only when trying to return Tsify types under wasm_bindgen on async methods.

For example, using features = ["js"]:

use serde::{Deserialize, Serialize};
use tsify::Tsify;
use wasm_bindgen::prelude::wasm_bindgen;

#[derive(Tsify, Serialize, Deserialize)]
#[tsify(into_wasm_abi, from_wasm_abi)]
pub struct Example {
    a: i32,
}

/// Compiles successfully
#[wasm_bindgen]
pub fn example_sync() -> Example {
    Example { a: 42 }
}

/// Error, fails to compile
#[wasm_bindgen]
pub async fn example_async() -> Example {
    Example { a: 42 }
}

The sync method compiles successfully, but the async method fails to compile with the error:

error[E0277]: the trait bound `JsValue: From<Example>` is not satisfied
  --> src/lib.rs:12:33
   |
12 | pub async fn example(a: i32) -> Example {
   |                                 ^^^^^^^ the trait `From<Example>` is not implemented for `JsValue`, which is required by `Example: IntoJsResult`
...
   = note: required for `Example` to implement `Into<JsValue>`
   = note: required for `Example` to implement `IntoJsResult`

[hoxxep]

This now appears to be a duplicate of issue #24.

[Pantamis]

I implemented it in tsify-next fork: siefkenj#22

Should do the job let me know !

[sucaba]

I implemented it in tsify-next fork: siefkenj#22

Should do the job let me know !

Thanks, man! You saved my release day