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// Issue https://github.com/rust-lang/rust/issues/123414
trait MemoryUnit {
extern "C" fn read_word(&mut self) -> u8;
extern "C" fn read_dword(Self::Assoc<'_>) -> u16;
//~^ WARNING anonymous parameters are deprecated and will be removed in the next edition
//~| WARNING this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
//~| ERROR associated type `Assoc` not found for `Self`
}
struct ROM {}
impl MemoryUnit for ROM {
//~^ ERROR not all trait items implemented, missing: `read_word`
extern "C" fn read_dword(&'_ self) -> u16 {
//~^ ERROR method `read_dword` has a `&self` declaration in the impl, but not in the trait
let a16 = self.read_word() as u16;
//~^ ERROR cannot borrow `*self` as mutable, as it is behind a `&` reference
let b16 = self.read_word() as u16;
//~^ ERROR cannot borrow `*self` as mutable, as it is behind a `&` reference
(b16 << 8) | a16
}
}
pub fn main() {}
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