As Tim said, it needs at least a 2 week discussion period.
Could you share the reference? Did I miss it or did I not see a PR linked from the RFC? While technically having an implementation is not a prerequisite of an RFC, it is strongly recommended. (Also, having written the original patch, I'm curious if you're doing it the same way I did. It also may be sensible to use the compile step rather than strictly the lexer; moving pipes from strictly lexer to a compile step was a very smart move, for instance, as it simplified a lot of the ancillary behavior around debugging and error messages.) Here it is. I've added the link to the RFC. It was one of my first PRs in PHP, so I did the things I only learned from there. Lexer still should be adjusted to accept `=>` syntax. ---------- Best regards, Dmitrii Derepko. @xepozz