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rust-clippy/tests/ui/deref_by_slicing.rs

30 lines
711 B
Rust

// run-rustfix
#![warn(clippy::deref_by_slicing)]
#![allow(clippy::borrow_deref_ref)]
use std::io::Read;
fn main() {
let mut vec = vec![0];
let _ = &vec[..];
let _ = &mut vec[..];
let ref_vec = &mut vec;
let _ = &ref_vec[..];
let mut_slice = &mut ref_vec[..];
let _ = &mut mut_slice[..]; // Err, re-borrows slice
let s = String::new();
let _ = &s[..];
static S: &[u8] = &[0, 1, 2];
let _ = &mut &S[..]; // Err, re-borrows slice
let slice: &[u32] = &[0u32, 1u32];
let slice_ref = &slice;
let _ = &slice_ref[..]; // Err, derefs slice
let bytes: &[u8] = &[];
let _ = (&bytes[..]).read_to_end(&mut vec![]).unwrap(); // Err, re-borrows slice
}