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// gate-test-coroutine_clone
// Verifies that non-static coroutines can be cloned/copied if all their upvars and locals held
// across awaits can be cloned/copied.
//@compile-flags: --diagnostic-width=300
#![feature(coroutines, coroutine_clone, stmt_expr_attributes)]
struct NonClone;
fn test1() {
let copyable: u32 = 123;
let gen_copy_0 = #[coroutine]
move || {
yield;
drop(copyable);
};
check_copy(&gen_copy_0);
check_clone(&gen_copy_0);
}
fn test2() {
let copyable: u32 = 123;
let gen_copy_1 = #[coroutine]
move || {
/*
let v = vec!['a'];
let n = NonClone;
drop(v);
drop(n);
*/
yield;
let v = vec!['a'];
let n = NonClone;
drop(n);
drop(copyable);
};
check_copy(&gen_copy_1);
check_clone(&gen_copy_1);
}
fn test3() {
let clonable_0: Vec<u32> = Vec::new();
let gen_clone_0 = #[coroutine]
move || {
let v = vec!['a'];
yield;
drop(v);
drop(clonable_0);
};
check_copy(&gen_clone_0);
//~^ ERROR the trait bound `Vec<u32>: Copy` is not satisfied
//~| ERROR the trait bound `Vec<char>: Copy` is not satisfied
check_clone(&gen_clone_0);
}
fn test4() {
let clonable_1: Vec<u32> = Vec::new();
let gen_clone_1 = #[coroutine]
move || {
let v = vec!['a'];
/*
let n = NonClone;
drop(n);
*/
yield;
let n = NonClone;
drop(n);
drop(v);
drop(clonable_1);
};
check_copy(&gen_clone_1);
//~^ ERROR the trait bound `Vec<u32>: Copy` is not satisfied
//~| ERROR the trait bound `Vec<char>: Copy` is not satisfied
check_clone(&gen_clone_1);
}
fn test5() {
let non_clonable: NonClone = NonClone;
let gen_non_clone = #[coroutine]
move || {
yield;
drop(non_clonable);
};
check_copy(&gen_non_clone);
//~^ ERROR the trait bound `NonClone: Copy` is not satisfied
check_clone(&gen_non_clone);
//~^ ERROR the trait bound `NonClone: Clone` is not satisfied
}
fn check_copy<T: Copy>(_x: &T) {}
fn check_clone<T: Clone>(_x: &T) {}
fn main() {}
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