db4bd96575
We do not want to remove casts done inside macros. Also, when printing the suggestion, take it from the same context as the origin expression (the root context).
61 lines
1.3 KiB
Rust
61 lines
1.3 KiB
Rust
#![warn(clippy::ptr_eq)]
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macro_rules! mac {
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($a:expr, $b:expr) => {
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$a as *const _ as usize == $b as *const _ as usize
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};
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(cast $a:expr) => {
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$a as *const [i32; 3]
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};
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}
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macro_rules! another_mac {
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($a:expr, $b:expr) => {
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$a as *const _ == $b as *const _
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};
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}
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fn main() {
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let a = &[1, 2, 3];
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let b = &[1, 2, 3];
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let _ = std::ptr::eq(a, b);
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//~^ ptr_eq
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let _ = std::ptr::eq(a, b);
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//~^ ptr_eq
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let _ = std::ptr::eq(a.as_ptr(), b as *const _);
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//~^ ptr_eq
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let _ = std::ptr::eq(a.as_ptr(), b.as_ptr());
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//~^ ptr_eq
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// Do not lint
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let _ = mac!(a, b);
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let _ = another_mac!(a, b);
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let a = &mut [1, 2, 3];
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let b = &mut [1, 2, 3];
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let _ = std::ptr::eq(a.as_mut_ptr(), b as *mut [i32] as *mut _);
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//~^ ptr_eq
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let _ = std::ptr::eq(a.as_mut_ptr(), b.as_mut_ptr());
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//~^ ptr_eq
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let _ = a == b;
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let _ = core::ptr::eq(a, b);
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let (x, y) = (&0u32, &mut 1u32);
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let _ = std::ptr::eq(x, y);
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//~^ ptr_eq
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let _ = !std::ptr::eq(x, y);
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//~^ ptr_eq
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#[allow(clippy::eq_op)]
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let _issue14337 = std::ptr::eq(main as *const (), main as *const ());
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//~^ ptr_eq
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// Do not peel the content of macros
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let _ = std::ptr::eq(mac!(cast a), mac!(cast b));
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//~^ ptr_eq
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}
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