[rustc.git] / src / tools / clippy / tests / ui / deref_by_slicing.rs

// 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
}
Commit	Line	Data
5e7ed085 FG	1	// run-rustfix
	2
	3	#![warn(clippy::deref_by_slicing)]
923072b8	4	#![allow(clippy::borrow_deref_ref)]
5e7ed085 FG	5
	6	use std::io::Read;
	7
	8	fn main() {
	9	let mut vec = vec![0];
	10	let _ = &vec[..];
	11	let _ = &mut vec[..];
	12
	13	let ref_vec = &mut vec;
	14	let _ = &ref_vec[..];
	15	let mut_slice = &mut ref_vec[..];
	16	let _ = &mut mut_slice[..]; // Err, re-borrows slice
	17
	18	let s = String::new();
	19	let _ = &s[..];
	20
	21	static S: &[u8] = &[0, 1, 2];
	22	let _ = &mut &S[..]; // Err, re-borrows slice
	23
	24	let slice: &[u32] = &[0u32, 1u32];
	25	let slice_ref = &slice;
	26	let _ = &slice_ref[..]; // Err, derefs slice
	27
	28	let bytes: &[u8] = &[];
	29	let _ = (&bytes[..]).read_to_end(&mut vec![]).unwrap(); // Err, re-borrows slice
	30	}