#[tokio::main] ignores generics

[daxpedda]

Version

tokio v0.2.10
tokio-macros v0.2.3
tokio-util v0.2.0

Subcrates

macros

Description

When using #[tokio::main] on a function with generics, the generics are skipped.

I tried this code:

#[tokio::main]
async fn generic_fun<T: Default>() -> T {
    T::default()
}

I expected to see this happen (on expansion):

fn generic_fun<T: Default>() -> T {
    tokio::runtime::Runtime::new().unwrap().block_on(async {
        {
            T::default()
        }
    })
}

Instead, this happened (on expansion):

fn generic_fun() -> T {
    tokio::runtime::Runtime::new().unwrap().block_on(async {
        {
            T::default()
        }
    })
}