76 lines
2.0 KiB
Rust
76 lines
2.0 KiB
Rust
#![warn(clippy::transmute_ptr_to_ref)]
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#![allow(clippy::match_single_binding, clippy::unnecessary_cast)]
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unsafe fn _ptr_to_ref<T, U>(p: *const T, m: *mut T, o: *const U, om: *mut U) {
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let _: &T = std::mem::transmute(p);
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let _: &T = &*p;
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let _: &mut T = std::mem::transmute(m);
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let _: &mut T = &mut *m;
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let _: &T = std::mem::transmute(m);
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let _: &T = &*m;
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let _: &mut T = std::mem::transmute(p as *mut T);
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let _ = &mut *(p as *mut T);
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let _: &T = std::mem::transmute(o);
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let _: &T = &*(o as *const T);
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let _: &mut T = std::mem::transmute(om);
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let _: &mut T = &mut *(om as *mut T);
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let _: &T = std::mem::transmute(om);
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let _: &T = &*(om as *const T);
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}
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fn _issue1231() {
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struct Foo<'a, T> {
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bar: &'a T,
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}
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let raw = 42 as *const i32;
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let _: &Foo<u8> = unsafe { std::mem::transmute::<_, &Foo<_>>(raw) };
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let _: &Foo<&u8> = unsafe { std::mem::transmute::<_, &Foo<&_>>(raw) };
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type Bar<'a> = &'a u8;
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let raw = 42 as *const i32;
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unsafe { std::mem::transmute::<_, Bar>(raw) };
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}
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unsafe fn _issue8924<'a, 'b, 'c>(x: *const &'a u32, y: *const &'b u32) -> &'c &'b u32 {
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match 0 {
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0 => std::mem::transmute(x),
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1 => std::mem::transmute(y),
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2 => std::mem::transmute::<_, &&'b u32>(x),
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_ => std::mem::transmute::<_, &&'b u32>(y),
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}
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}
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#[clippy::msrv = "1.38"]
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unsafe fn _meets_msrv<'a, 'b, 'c>(x: *const &'a u32) -> &'c &'b u32 {
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let a = 0u32;
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let a = &a as *const u32;
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let _: &u32 = std::mem::transmute(a);
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let _: &u32 = std::mem::transmute::<_, &u32>(a);
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match 0 {
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0 => std::mem::transmute(x),
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_ => std::mem::transmute::<_, &&'b u32>(x),
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}
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}
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#[clippy::msrv = "1.37"]
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unsafe fn _under_msrv<'a, 'b, 'c>(x: *const &'a u32) -> &'c &'b u32 {
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let a = 0u32;
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let a = &a as *const u32;
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let _: &u32 = std::mem::transmute(a);
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let _: &u32 = std::mem::transmute::<_, &u32>(a);
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match 0 {
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0 => std::mem::transmute(x),
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_ => std::mem::transmute::<_, &&'b u32>(x),
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}
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}
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fn main() {}
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