rust/tests/ui/coroutine/niche-in-coroutine.rs
Oli Scherer aef0f4024a Error on using yield without also using #[coroutine] on the closure
And suggest adding the `#[coroutine]` to the closure
2024-04-24 08:05:29 +00:00

20 lines
344 B
Rust

// Test that niche finding works with captured coroutine upvars.
//@ run-pass
#![feature(coroutines, stmt_expr_attributes)]
use std::mem::size_of_val;
fn take<T>(_: T) {}
fn main() {
let x = false;
let gen1 = #[coroutine] || {
yield;
take(x);
};
assert_eq!(size_of_val(&gen1), size_of_val(&Some(gen1)));
}