rust/tests/ui/async-await/partial-initialization-across-await.rs
2023-01-11 09:32:08 +00:00

40 lines
667 B
Rust

// Test that we don't allow awaiting from an async fn while a local is partially
// initialized.
// edition:2018
struct S { x: i32, y: i32 }
struct T(i32, i32);
async fn noop() {}
async fn test_tuple() {
let mut t: (i32, i32);
t.0 = 42; //~ ERROR E0381
noop().await;
t.1 = 88;
let _ = t;
}
async fn test_tuple_struct() {
let mut t: T;
t.0 = 42; //~ ERROR E0381
noop().await;
t.1 = 88;
let _ = t;
}
async fn test_struct() {
let mut t: S;
t.x = 42; //~ ERROR E0381
noop().await;
t.y = 88;
let _ = t;
}
fn main() {
let _ = test_tuple();
let _ = test_tuple_struct();
let _ = test_struct();
}