[Pitch #2] Structured Concurrency

[xAlien95 (Stefano De Carolis)]

@michelf

@michelf

Does that mean async let introduces a suspension point too?

I still haven't got an answer to that question. I find it strange that group.add requires an await but async let (which is supposed to be sugar over it) doesn't.

I guess it's explicitly mentioned in the Detailed design section:

Any reference to a variable that was declared in an async let is a potential suspension point, equivalent to a call to an asynchronous function, so it must occur within an await expression. The initializer of the async let is considered to be enclosed by an implicit await expression.

The answer is: await is implicit when using async let and it isn't when using group.add (at the moment at least).