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Properly handle emojis as literal prefix in macros #123752

Merged
merged 1 commit into from
Apr 19, 2024

Commits on Apr 10, 2024

  1. Properly handle emojis as literal prefix in macros

    Do not accept the following
    
    ```rust
    macro_rules! lexes {($($_:tt)*) => {}}
    lexes!(🐛"foo");
    ```
    
    Before, invalid emoji identifiers were gated during parsing instead of lexing in all cases, but this didn't account for macro expansion of literal prefixes.
    
    Fix rust-lang#123696.
    estebank committed Apr 10, 2024
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