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//@ check-pass
macro_rules! impl_primitive {
($ty:ty) => { impl_primitive!(impl $ty); };
(impl $ty:ty) => { fn a(_: $ty) {} }
}
impl_primitive! { u8 }
macro_rules! test {
($ty:ty) => { compile_error!("oh no"); };
(impl &) => {};
}
test!(impl &);
fn main() {}
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