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authorbors <bors@rust-lang.org>2020-07-27 05:50:29 +0000
committerbors <bors@rust-lang.org>2020-07-27 05:50:29 +0000
commit1841fb97e17f5e41c609cd11ab114c7ac1f3de2a (patch)
tree9ddf005878ea7a037fc39e8edecc98f2edf0d990 /src/libstd/sys/vxworks/stack_overflow.rs
parentf721fb5933f130b7a5b72152dbacd298e9ee7f02 (diff)
parent62c9fa939d95fcc009afb7ab80483081c3d1f068 (diff)
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Auto merge of #74653 - petrochenkov:pmenv, r=dtolnay
proc_macro: Add API for tracked access to environment variables

Continuation of https://github.com/rust-lang/rust/pull/71858.

`proc_macro::tracked_env::var` is similar to regular `env::var` called from a proc macro, except that it also adds the accessed variable to depinfo.
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