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58027e2657
Fixes #12751 changelog: Fix [`redundant_slicing`] when the slice is behind a mutable reference
32 lines
767 B
Rust
32 lines
767 B
Rust
#![warn(clippy::deref_by_slicing)]
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#![allow(clippy::borrow_deref_ref)]
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use std::io::Read;
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fn main() {
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let mut vec = vec![0];
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let _ = &vec[..];
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let _ = &mut vec[..];
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let ref_vec = &mut vec;
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let _ = &ref_vec[..];
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let mut_slice = &mut ref_vec[..];
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let _ = &mut mut_slice[..]; // Err, re-borrows slice
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let s = String::new();
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let _ = &s[..];
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static S: &[u8] = &[0, 1, 2];
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let _ = &mut &S[..]; // Err, re-borrows slice
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let slice: &[u32] = &[0u32, 1u32];
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let slice_ref = &slice;
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let _ = &slice_ref[..]; // Err, derefs slice
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let bytes: &[u8] = &[];
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let _ = (&bytes[..]).read_to_end(&mut vec![]).unwrap(); // Err, re-borrows slice
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// issue 12751
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let a = &mut [1, 2, 3][..];
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let _ = &a[..];
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}
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