proc-macro2 0.4.21

A stable implementation of the upcoming new `proc_macro` API. Comes with an option, off by default, to also reimplement itself in terms of the upstream unstable API.

proc-macro2

There is very little structured metadata to build this page from currently. You should check the main library docs, readme, or Cargo.toml in case the author documented the features in them.

This version has 3 feature flags, 2 of them enabled by default.

default

  • proc-macro

proc-macro

    This feature flag does not enable additional features.

nightly

  • proc-macro