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//@revisions: edition2021 edition2024
//@[edition2021] edition:2021
//@[edition2024] edition:2024
#![warn(clippy::unnecessary_semicolon)]
#![feature(postfix_match)]
#![allow(clippy::single_match)]
fn no_lint(mut x: u32) -> Option<u32> {
Some(())?;
{
let y = 3;
dbg!(x + y)
};
{
let (mut a, mut b) = (10, 20);
(a, b) = (b + 1, a + 1);
}
Some(0)
}
fn main() {
let mut a = 3;
if a == 2 {
println!("This is weird");
}
//~^ unnecessary_semicolon
a.match {
3 => println!("three"),
_ => println!("not three"),
}
//~^ unnecessary_semicolon
}
// This is a problem in edition 2021 and below
fn borrow_issue() {
let v = std::cell::RefCell::new(Some(vec![1]));
match &*v.borrow() {
Some(v) => {
dbg!(v);
},
None => {},
}
//~[edition2024]^ unnecessary_semicolon
}
fn no_borrow_issue(a: u32, b: u32) {
match Some(a + b) {
Some(v) => {
dbg!(v);
},
None => {},
}
//~^ unnecessary_semicolon
}
fn issue14100() -> bool {
// Removing the `;` would make the block type be `()` instead of `!`, and this could no longer be
// cast into the `bool` function return type.
if return true {};
}
fn issue15426(x: u32) {
// removing the `;` would turn the stmt into an expr, but attrs aren't allowed on exprs
#[rustfmt::skip]
match x {
0b00 => {} 0b01 => {}
0b11 => {} _ => {}
};
}
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