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Update `expr` matcher for Edition 2024 and add `expr_2021` nonterminal This commit adds a new nonterminal `expr_2021` in macro patterns, and `expr_fragment_specifier_2024` feature flag. This change also updates `expr` so that on Edition 2024 it will also match `const { ... }` blocks, while `expr_2021` preserves the current behavior of `expr`, matching expressions without `const` blocks. Joint work with `@vincenzopalazzo.` Issue #123742 |
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src | ||
Cargo.toml | ||
messages.ftl |