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#![deny(dangling_pointers_from_temporaries)]
use std::fmt::Debug;
trait Ext1 {
fn dbg(self) -> Self
where
Self: Sized + Debug,
{
dbg!(&self);
self
}
}
impl<T> Ext1 for *const T {}
trait Ext2 {
fn foo(self);
}
impl Ext2 for *const u32 {
fn foo(self) {
dbg!(unsafe { self.read() });
}
}
fn main() {
let _ptr1 = Vec::<u32>::new().as_ptr().dbg();
//~^ ERROR a dangling pointer will be produced because the temporary `Vec<u32>` will be dropped
let _ptr2 = vec![0].as_ptr().foo();
//~^ ERROR a dangling pointer will be produced because the temporary `Vec<u32>` will be dropped
}
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