42 lines
693 B
Rust
42 lines
693 B
Rust
// Check that borrowck knows that moves in the pattern for if-let guards
|
|
// only happen when the pattern is matched.
|
|
|
|
//@ build-pass
|
|
|
|
#![feature(if_let_guard)]
|
|
#![allow(irrefutable_let_patterns)]
|
|
|
|
fn same_pattern() {
|
|
let x: Box<_> = Box::new(1);
|
|
|
|
let v = (1, 2);
|
|
|
|
match v {
|
|
(1, 2) if let y = x => (),
|
|
(1, 2) if let z = x => (),
|
|
_ => (),
|
|
}
|
|
}
|
|
|
|
fn or_pattern() {
|
|
let x: Box<_> = Box::new(1);
|
|
|
|
let v = (1, 2);
|
|
|
|
match v {
|
|
(1, _) | (_, 2) if let y = x => (),
|
|
_ => (),
|
|
}
|
|
}
|
|
|
|
fn main() {
|
|
let x: Box<_> = Box::new(1);
|
|
|
|
let v = (1, 2);
|
|
|
|
match v {
|
|
(1, 2) if let y = x => false,
|
|
_ => { *x == 1 },
|
|
};
|
|
}
|