What's New in Rust 1.40
Rustacean Station
Macro Rules, Procedure Macros in Rust
All kinds of macros are now usable within extern blocks. You can also do things that put attributes on these extern fn a definitions. The meto matcher matches anything that looks like a attribute style macro. Previously it was just like path brackets and then attributes, whereas now they're leading more towards you should allow any kind of russindax in there. And the last one though, i think is interesting because it's a, it's a little bit odd when you first look at it.
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