rust/tests/ui/suggestions/try-operator-dont-suggest-semicolon.rs
2023-01-11 09:32:08 +00:00

28 lines
739 B
Rust

// Regression test for #87051, where a double semicolon was erroneously
// suggested after a `?` operator.
fn main() -> Result<(), ()> {
a(|| {
b()
//~^ ERROR: mismatched types [E0308]
//~| NOTE: expected `()`, found `i32`
//~| HELP: consider using a semicolon here
})?;
// Here, we do want to suggest a semicolon:
let x = Ok(42);
if true {
//~^ NOTE: expected this to be `()`
x?
//~^ ERROR: mismatched types [E0308]
//~| NOTE: expected `()`, found integer
//~| HELP: consider using a semicolon here
}
//~^ HELP: consider using a semicolon here
Ok(())
}
fn a<F>(f: F) -> Result<(), ()> where F: FnMut() { Ok(()) }
fn b() -> i32 { 42 }