40 lines
1.0 KiB
Rust
40 lines
1.0 KiB
Rust
//@no-rustfix: suggests external crate
|
|
|
|
#![allow(clippy::needless_borrow, clippy::useless_vec)]
|
|
|
|
#[deny(clippy::naive_bytecount)]
|
|
fn main() {
|
|
let x = vec![0_u8; 16];
|
|
|
|
// naive byte count
|
|
let _ = x.iter().filter(|&&a| a == 0).count();
|
|
//~^ ERROR: you appear to be counting bytes the naive way
|
|
|
|
// naive byte count
|
|
let _ = (&x[..]).iter().filter(|&a| *a == 0).count();
|
|
//~^ ERROR: you appear to be counting bytes the naive way
|
|
|
|
// not an equality count, OK.
|
|
let _ = x.iter().filter(|a| **a > 0).count();
|
|
|
|
// not a slice
|
|
let _ = x.iter().map(|a| a + 1).filter(|&a| a < 15).count();
|
|
|
|
let b = 0;
|
|
|
|
// woah there
|
|
let _ = x.iter().filter(|_| b > 0).count();
|
|
|
|
// nothing to see here, move along
|
|
let _ = x.iter().filter(|_a| b == b + 1).count();
|
|
|
|
// naive byte count
|
|
let _ = x.iter().filter(|a| b + 1 == **a).count();
|
|
//~^ ERROR: you appear to be counting bytes the naive way
|
|
|
|
let y = vec![0_u16; 3];
|
|
|
|
// naive count, but not bytes
|
|
let _ = y.iter().filter(|&&a| a == 0).count();
|
|
}
|