64 lines
1.1 KiB
Rust
64 lines
1.1 KiB
Rust
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// check-pass
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#![warn(unused)]
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#![allow(unreachable_code)]
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pub static A: i32 = {
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let mut i = 0;
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let mut a = 0; //~ WARN variable `a` is assigned to, but never used
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while i < 10 {
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i += 1;
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a += 1;
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}
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i
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};
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pub const B: u32 = {
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let mut b = 1;
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b += 1; //~ WARN value assigned to `b` is never read
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b = 42;
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b
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};
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pub enum E {
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V1 = {
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let e = 1; //~ WARN unused variable: `e`
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1
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},
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V2 = {
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let _f = 10;
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2
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}
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}
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pub fn f(x: [u8; { let s = 17; 100 }]) -> [u8; { let z = 18; 100 }] {
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//~^ WARN unused variable: `s`
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//~| WARN unused variable: `z`
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x
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}
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pub trait T {
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const T: usize = {
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let mut t = 10;
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t = t + t; //~ WARN value assigned to `t` is never read
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20
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};
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}
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impl T for String {
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const T: usize = {
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let w = 10; //~ WARN unused variable: `w`
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loop {
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break;
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let _ = w;
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}
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44
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};
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}
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fn main() {
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let _ = [(); {
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let z = 42; //~ WARN unused variable: `z`
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35
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}];
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}
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