rust-clippy/tests/ui/deref_addrof_double_trigger.rs
2023-08-22 17:18:11 +02:00

27 lines
819 B
Rust

// This test can't work with run-rustfix because it needs two passes of test+fix
//@no-rustfix
#[warn(clippy::deref_addrof)]
#[allow(unused_variables, unused_mut)]
fn main() {
let a = 10;
//This produces a suggestion of 'let b = *&a;' which
//will trigger the 'clippy::deref_addrof' lint again
let b = **&&a;
//~^ ERROR: immediately dereferencing a reference
//~| NOTE: `-D clippy::deref-addrof` implied by `-D warnings`
{
let mut x = 10;
let y = *&mut x;
//~^ ERROR: immediately dereferencing a reference
}
{
//This produces a suggestion of 'let y = *&mut x' which
//will trigger the 'clippy::deref_addrof' lint again
let mut x = 10;
let y = **&mut &mut x;
//~^ ERROR: immediately dereferencing a reference
}
}