31 lines
1.1 KiB
Rust
31 lines
1.1 KiB
Rust
// This is a test that the `#![feature(nll)]` opt-in overrides the
|
|
// migration mode. The intention here is to emulate the goal behavior
|
|
// that `--edition 2018` effects on borrowck (modeled here by `-Z
|
|
// borrowck=migrate`) are themselves overridden by the
|
|
// `#![feature(nll)]` opt-in.
|
|
//
|
|
// Therefore, for developer convenience, under `#[feature(nll)]` the
|
|
// NLL checks will be emitted as errors *even* in the presence of `-Z
|
|
// borrowck=migrate`.
|
|
|
|
// revisions: zflag edition
|
|
// [zflag]compile-flags: -Z borrowck=migrate
|
|
// [edition]edition:2018
|
|
|
|
#![feature(nll)]
|
|
|
|
fn main() {
|
|
match Some(&4) {
|
|
None => {},
|
|
ref mut foo
|
|
if {
|
|
(|| { let bar = foo; bar.take() })();
|
|
//[zflag]~^ ERROR cannot move out of borrowed content [E0507]
|
|
//[edition]~^^ ERROR cannot move out of borrowed content [E0507]
|
|
false
|
|
} => {},
|
|
Some(ref _s) => println!("Note this arm is bogus; the `Some` became `None` in the guard."),
|
|
_ => println!("Here is some supposedly unreachable code."),
|
|
}
|
|
}
|