mirror of
https://github.com/rust-lang/rust.git
synced 2025-10-27 02:53:43 +00:00
e6f0caf197
[`macro_metavar_expr_concat`] Add support for literals
Adds support for literals in macro parameters.
```rust
macro_rules! with_literal {
($literal:literal) => {
const ${concat(FOO, $literal)}: i32 = 1;
}
}
fn main() {
with_literal!("_BAR");
assert_eq!(FOO_BAR, 1);
}
```
cc #124225
r? ``@petrochenkov``