File: literals-are-validated-before-expansion.rs

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rustc 1.70.0%2Bdfsg1-9
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macro_rules! black_hole {
    ($($tt:tt)*) => {}
}

fn main() {
    black_hole! { '\u{FFFFFF}' }
    //~^ ERROR: invalid unicode character escape
    black_hole! { "this is surrogate: \u{DAAA}" }
    //~^ ERROR: invalid unicode character escape
}