次のコードをコンパイルしたい。
use wasm_bindgen::prelude::*;
#[wasm_bindgen]
pub struct Dummy {}
#[wasm_bindgen]
pub fn test() -> Vec<Dummy> {
vec![]
}
ただし、コンパイラはそれを許可しません。
error[E0277]: the trait bound `std::boxed::Box<[Dummy]>: wasm_bindgen::convert::traits::IntoWasmAbi` is not satisfied
--> xxxx
|
XX | #[wasm_bindgen]
| ^^^^^^^^^^^^^^^ the trait `wasm_bindgen::convert::traits::IntoWasmAbi` is not implemented for `std::boxed::Box<[Dummy]>`
|
= help: the following implementations were found:
<std::boxed::Box<[f32]> as wasm_bindgen::convert::traits::IntoWasmAbi>
<std::boxed::Box<[f64]> as wasm_bindgen::convert::traits::IntoWasmAbi>
<std::boxed::Box<[i16]> as wasm_bindgen::convert::traits::IntoWasmAbi>
<std::boxed::Box<[i32]> as wasm_bindgen::convert::traits::IntoWasmAbi>
and 9 others
= note: required because of the requirements on the impl of `wasm_bindgen::convert::traits::IntoWasmAbi` for `std::vec::Vec<Dummy>`
wasm_bindgen の最新バージョン (v0.2.55) を使用しています。これは可能だと思いますよね?