rust/tests/ui/coercion/issue-32122-2.rs

29 lines
564 B
Rust

//@ run-rustfix
use std::ops::Deref;
struct Bar(u8);
struct Foo(Bar);
struct Emm(Foo);
impl Deref for Bar{
type Target = u8;
fn deref(&self) -> &Self::Target {
&self.0
}
}
impl Deref for Foo {
type Target = Bar;
fn deref(&self) -> &Self::Target {
&self.0
}
}
impl Deref for Emm {
type Target = Foo;
fn deref(&self) -> &Self::Target {
&self.0
}
}
fn main() {
let a = Emm(Foo(Bar(0)));
// Should suggest `&***` even when deref is pretty deep
let _: *const u8 = &a; //~ ERROR mismatched types
}