31 lines
1.1 KiB
Rust
31 lines
1.1 KiB
Rust
|
// check-pass
|
||
|
|
|
||
|
|
fn main() {
|
||
|
|
let fn_ptr = main;
|
||
|
|
|
||
|
|
if (fn_ptr as *mut ()).is_null() {}
|
||
|
|
//~^ WARN function pointers are not nullable
|
||
|
|
if (fn_ptr as *const u8).is_null() {}
|
||
|
|
//~^ WARN function pointers are not nullable
|
||
|
|
if (fn_ptr as *const ()) == std::ptr::null() {}
|
||
|
|
//~^ WARN function pointers are not nullable
|
||
|
|
if (fn_ptr as *mut ()) == std::ptr::null_mut() {}
|
||
|
|
//~^ WARN function pointers are not nullable
|
||
|
|
if (fn_ptr as *const ()) == (0 as *const ()) {}
|
||
|
|
//~^ WARN function pointers are not nullable
|
||
|
|
if <*const _>::is_null(fn_ptr as *const ()) {}
|
||
|
|
//~^ WARN function pointers are not nullable
|
||
|
|
if (fn_ptr as *mut fn() as *const fn() as *const ()).is_null() {}
|
||
|
|
//~^ WARN function pointers are not nullable
|
||
|
|
if (fn_ptr as fn() as *const ()).is_null() {}
|
||
|
|
//~^ WARN function pointers are not nullable
|
||
|
|
|
||
|
|
const ZPTR: *const () = 0 as *const _;
|
||
|
|
const NOT_ZPTR: *const () = 1 as *const _;
|
||
|
|
|
||
|
|
// unlike the uplifted clippy::fn_null_check lint we do
|
||
|
|
// not lint on them
|
||
|
|
if (fn_ptr as *const ()) == ZPTR {}
|
||
|
|
if (fn_ptr as *const ()) == NOT_ZPTR {}
|
||
|
|
}
|