Improve error message when parsing Ident encounters keyword by dtolnay · Pull Request #1415 · dtolnay/syn

dtolnay · 2023-03-20T20:44:05Z

Before:

error: expected identifier
 --> dev/main.rs:4:8
  |
4 |     fn async() {}
  |        ^^^^^

After:

error: expected identifier, found keyword `async`
 --> dev/main.rs:4:8
  |
4 |     fn async() {}
  |        ^^^^^

This lines up with how Rust's error reporting in macro_rules handles the same situation.

macro_rules! path {
    ($p:path) => {};
}

path!(async);

error: expected identifier, found keyword `async`
 --> src/lib.rs:5:7
  |
5 | path!(async);
  |       ^^^^^ expected identifier, found keyword

Improve error message when parsing Ident encounters keyword

18cac49

dtolnay merged commit eaf6215 into master Mar 20, 2023

dtolnay deleted the identkeyword branch March 20, 2023 20:48

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