rust/tests/ui/deref_addrof.rs

40 lines
669 B
Rust
Raw Normal View History

// run-rustfix
fn get_number() -> usize {
10
}
2018-12-09 23:26:16 +01:00
fn get_reference(n: &usize) -> &usize {
n
}
2018-07-28 17:34:52 +02:00
#[allow(clippy::many_single_char_names, clippy::double_parens)]
#[allow(unused_variables, unused_parens)]
2018-07-28 17:34:52 +02:00
#[warn(clippy::deref_addrof)]
fn main() {
let a = 10;
let aref = &a;
let b = *&a;
2017-02-08 14:58:07 +01:00
let b = *&get_number();
2017-02-08 14:58:07 +01:00
let b = *get_reference(&a);
2018-12-09 23:26:16 +01:00
let bytes: Vec<usize> = vec![1, 2, 3, 4];
let b = *&bytes[1..2][0];
2017-02-08 14:58:07 +01:00
2016-11-25 15:54:07 +01:00
//This produces a suggestion of 'let b = (a);' which
//will trigger the 'unused_parens' lint
let b = *&(a);
2017-02-08 14:58:07 +01:00
let b = *(&a);
2017-02-08 14:58:07 +01:00
#[rustfmt::skip]
let b = *((&a));
2017-02-08 14:58:07 +01:00
let b = *&&a;
2017-02-08 14:58:07 +01:00
let b = **&aref;
}