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fn iter<T>(vec: Vec<T>) -> impl Iterator<Item = T> {
vec.into_iter()
}
fn foo() {
let vec = vec!["one", "two", "three"];
while let Some(item) = iter(vec).next() { //~ ERROR use of moved value
//~^ HELP consider moving the expression out of the loop so it is only moved once
println!("{:?}", item);
}
}
fn bar() {
let vec = vec!["one", "two", "three"];
loop {
//~^ HELP consider moving the expression out of the loop so it is only moved once
let Some(item) = iter(vec).next() else { //~ ERROR use of moved value
break;
};
println!("{:?}", item);
}
}
fn baz() {
let vec = vec!["one", "two", "three"];
loop {
//~^ HELP consider moving the expression out of the loop so it is only moved once
let item = iter(vec).next(); //~ ERROR use of moved value
//~^ HELP consider cloning
if item.is_none() {
break;
}
println!("{:?}", item);
}
}
fn qux() {
let vec = vec!["one", "two", "three"];
loop {
//~^ HELP consider moving the expression out of the loop so it is only moved once
if let Some(item) = iter(vec).next() { //~ ERROR use of moved value
println!("{:?}", item);
break;
}
}
}
fn zap() {
loop {
let vec = vec!["one", "two", "three"];
loop {
//~^ HELP consider moving the expression out of the loop so it is only moved once
loop {
loop {
if let Some(item) = iter(vec).next() { //~ ERROR use of moved value
println!("{:?}", item);
break;
}
}
}
}
}
}
fn main() {
foo();
bar();
baz();
qux();
zap();
}
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