81a60b7aa8
Document why not use concat! in dbg! macro Original title: Reduce code generated by `dbg!` macro The expanded code before/after: <https://rust.godbolt.org/z/hE3j95>. --- We cannot use `concat!` since `file!` could contains `{` or the expression is a block (`{ .. }`). Using it will generated malformed format strings. So let's document this reason why we don't use `concat!` macro at all. |
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| Cargo.toml | ||