28 lines
766 B
Rust
28 lines
766 B
Rust
|
// Parenthesised let "expressions" are not allowed in guards
|
||
|
|
|
||
|
|
#![feature(if_let_guard)]
|
||
|
|
#![feature(let_chains)]
|
||
|
|
|
||
|
|
#[cfg(FALSE)]
|
||
|
|
fn un_cfged() {
|
||
|
|
match () {
|
||
|
|
() if let 0 = 1 => {}
|
||
|
|
() if (let 0 = 1) => {}
|
||
|
|
//~^ ERROR expected expression, found `let` statement
|
||
|
|
() if (((let 0 = 1))) => {}
|
||
|
|
//~^ ERROR expected expression, found `let` statement
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
fn main() {
|
||
|
|
match () {
|
||
|
|
() if let 0 = 1 => {}
|
||
|
|
() if (let 0 = 1) => {}
|
||
|
|
//~^ ERROR expected expression, found `let` statement
|
||
|
|
//~| ERROR `let` expressions are not supported here
|
||
|
|
() if (((let 0 = 1))) => {}
|
||
|
|
//~^ ERROR expected expression, found `let` statement
|
||
|
|
//~| ERROR `let` expressions are not supported here
|
||
|
|
}
|
||
|
|
}
|