rust/tests/ui/delegation/macro-inside-glob.rs

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2024-03-15 06:21:03 -05:00
//@ check-pass
#![feature(fn_delegation)]
#![allow(incomplete_features)]
trait Trait {
fn foo(&self) -> u8 { 0 }
fn bar(&self) -> u8 { 1 }
}
impl Trait for u8 {}
struct S(u8);
// Macro expansion works inside delegation items.
macro_rules! u8 { () => { u8 } }
macro_rules! self_0 { ($self:ident) => { &$self.0 } }
impl Trait for S {
reuse <u8!() as Trait>::* { self_0!(self) }
}
fn main() {
let s = S(2);
s.foo();
s.bar();
}