Support the @defer directive in query about async-graphql

[sunli829]

Is there any other way to simulate specialization in the stable version of rust?

trait A {
    fn test();
}

impl<T: 'static> A for T {
    fn test() {}
}

impl<T> A for T {
    fn test() {}
}

@nicolaiunrein @IcanDivideBy0 @phated

[sunli829]

Wait until the generic specialization is available......

[sunli829]

Maybe I found a way to support this feature.

[IcanDivideBy0]

I guess I can't help you on this one :/
Which trait are we talking about ? maybe we can split implementation in different parts?

[sunli829]

I thought about it again, even if there are specializations, there are other problems. It is difficult to implement @defer without affecting the ease of use. This is not a problem in languages with GC. 🥺

[sunli829]

I thought of a compromise method and tried again. 😂