rust/rustc_feature at 0f2cc21547cda91e515dc934d3d325088b043655 - rust

History

bors f8e5660532 Auto merge of #118958 - c410-f3r:concat-again, r=petrochenkov Add a new concat metavar expr Revival of #111930 Giving it another try now that #117050 was merged. With the new rules, meta-variable expressions must be referenced with a dollar sign (`$`) and this can cause misunderstands with `$concat`. ```rust macro_rules! foo { ( $bar:ident ) => { const ${concat(VAR, bar)}: i32 = 1; }; } // Will produce `VARbar` instead of `VAR_123` foo!(_123); ``` In other words, forgetting the dollar symbol can produce undesired outputs. cc #29599 cc https://github.com/rust-lang/rust/issues/124225	2024-06-14 16:41:39 +00:00
..
src	Auto merge of #118958 - c410-f3r:concat-again, r=petrochenkov	2024-06-14 16:41:39 +00:00
Cargo.toml	Clean up `rustc_*/Cargo.toml`.	2023-10-30 08:46:02 +11:00

bors f8e5660532 Auto merge of #118958 - c410-f3r:concat-again, r=petrochenkov

Add a new concat metavar expr

Revival of #111930

Giving it another try now that #117050 was merged.

With the new rules, meta-variable expressions must be referenced with a dollar sign (`$`) and this can cause misunderstands with `$concat`.

```rust
macro_rules! foo {
    ( $bar:ident ) => {
        const ${concat(VAR, bar)}: i32 = 1;
    };
}

// Will produce `VARbar` instead of `VAR_123`
foo!(_123);
```

In other words, forgetting the dollar symbol can produce undesired outputs.

cc #29599
cc https://github.com/rust-lang/rust/issues/124225

2024-06-14 16:41:39 +00:00

src

Auto merge of #118958 - c410-f3r:concat-again, r=petrochenkov

2024-06-14 16:41:39 +00:00

Cargo.toml

Clean up `rustc_*/Cargo.toml`.

2023-10-30 08:46:02 +11:00