rust/tests/ui/coroutine/niche-in-coroutine.rs

21 lines
424 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);
};
// FIXME(#63818): niches in coroutines are disabled. Should be `assert_eq`.
assert_ne!(size_of_val(&gen1), size_of_val(&Some(gen1)));
}