rust/tests/ui/drop/if-let-rescope-borrowck-suggestions.rs

34 lines
766 B
Rust

//@ edition: 2024
//@ compile-flags: -Z validate-mir -Zunstable-options
#![feature(if_let_rescope)]
#![deny(if_let_rescope)]
struct Droppy;
impl Drop for Droppy {
fn drop(&mut self) {
println!("dropped");
}
}
impl Droppy {
fn get_ref(&self) -> Option<&u8> {
None
}
}
fn do_something<T>(_: &T) {}
fn main() {
do_something(if let Some(value) = Droppy.get_ref() { value } else { &0 });
//~^ ERROR: temporary value dropped while borrowed
do_something(if let Some(value) = Droppy.get_ref() {
//~^ ERROR: temporary value dropped while borrowed
value
} else if let Some(value) = Droppy.get_ref() {
//~^ ERROR: temporary value dropped while borrowed
value
} else {
&0
});
}