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Add ui test of raw identifier in format string

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David Tolnay 2024-11-04 15:22:02 -05:00
parent ef59afe2d4
commit 1142834139
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2 changed files with 33 additions and 0 deletions
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12
tests/ui/raw-identifier.rs Normal file
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@ -0,0 +1,12 @@
use thiserror::Error;
#[derive(Error, Debug)]
#[error("error: {r#fn}")]
pub struct Error {
r#fn: &'static str,
}
fn main() {
let r#fn = "...";
let _ = format!("error: {r#fn}");
}

21
tests/ui/raw-identifier.stderr Normal file
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@ -0,0 +1,21 @@
error: invalid format string: raw identifiers are not supported
--> tests/ui/raw-identifier.rs:4:18
|
4 | #[error("error: {r#fn}")]
| --^^
| |
| raw identifier used here in format string
| help: remove the `r#`
|
= note: identifiers in format strings can be keywords and don't need to be prefixed with `r#`
error: invalid format string: raw identifiers are not supported
--> tests/ui/raw-identifier.rs:11:30
|
11 | let _ = format!("error: {r#fn}");
| --^^
| |
| raw identifier used here in format string
| help: remove the `r#`
|
= note: identifiers in format strings can be keywords and don't need to be prefixed with `r#`