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