A small shim over the proc_macro crate intended to multiplex the current stable interface (as of 2017-05-19) and the upcoming richer interface.
The upcoming support has features like:
My hope is that libraries ported to proc_macro2 will be trivial to port to the real proc_macro crate once the support on nightly is stabilize.
This crate is still very much a work in progress
proc-macro2 is primarily distributed under the terms of both the MIT license and the Apache License (Version 2.0), with portions covered by various BSD-like licenses.
See LICENSE-APACHE, and LICENSE-MIT for details.