45 lines
1.0 KiB
Rust
45 lines
1.0 KiB
Rust
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#![allow(unused, clippy::deref_by_slicing)]
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#![warn(clippy::redundant_slicing)]
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use std::io::Read;
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fn main() {
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let slice: &[u32] = &[0];
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let _ = slice; // Redundant slice
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let v = vec![0];
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let _ = &v[..]; // Ok, results in `&[_]`
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let _ = (&*v); // Outer borrow is redundant
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static S: &[u8] = &[0, 1, 2];
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let _ = &mut &S[..]; // Ok, re-borrows slice
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let mut vec = vec![0];
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let mut_slice = &mut vec[..]; // Ok, results in `&mut [_]`
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let _ = &mut mut_slice[..]; // Ok, re-borrows slice
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let ref_vec = &vec;
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let _ = &ref_vec[..]; // Ok, results in `&[_]`
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macro_rules! m {
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($e:expr) => {
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$e
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};
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}
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let _ = slice;
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macro_rules! m2 {
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($e:expr) => {
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&$e[..]
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};
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}
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let _ = m2!(slice); // Don't lint in a macro
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let slice_ref = &slice;
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let _ = &slice_ref[..]; // Ok, derefs slice
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// Issue #7972
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let bytes: &[u8] = &[];
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let _ = (&bytes[..]).read_to_end(&mut vec![]).unwrap(); // Ok, re-borrows slice
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}
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