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|
// check-pass
#![warn(unused)]
#![allow(unreachable_code)]
pub static A: i32 = {
let mut i = 0;
let mut a = 0; //~ WARN variable `a` is assigned to, but never used
while i < 10 {
i += 1;
a += 1;
}
i
};
pub const B: u32 = {
let mut b = 1;
b += 1; //~ WARN value assigned to `b` is never read
b = 42;
b
};
pub enum E {
V1 = {
let e = 1; //~ WARN unused variable: `e`
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},
V2 = {
let _f = 10;
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}
}
pub fn f(x: [u8; { let s = 17; 100 }]) -> [u8; { let z = 18; 100 }] {
//~^ WARN unused variable: `s`
//~| WARN unused variable: `z`
x
}
pub trait T {
const T: usize = {
let mut t = 10;
t = t + t; //~ WARN value assigned to `t` is never read
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};
}
impl T for String {
const T: usize = {
let w = 10; //~ WARN unused variable: `w`
loop {
break;
let _ = w;
}
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};
}
fn main() {
let _ = [(); {
let z = 42; //~ WARN unused variable: `z`
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}];
}
|
