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The custom
matches
macro was added before the standard library version wasadded. The standard library
matches
macro was added in Rust 1.42 [1]. Theimplementations are slightly different but the documentation is very similar.
Additionally, some of the
_tt_as_expr_hack
uses were no longer used with thischange.
[1] https://doc.rust-lang.org/std/macro.matches.html