commit | 7b817d1bb2b7656414a36fe01b35609ea9069112 | [log] [tgz] |
---|---|---|
author | Joel Galenson <jgalenson@google.com> | Fri Oct 01 16:45:50 2021 +0000 |
committer | Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com> | Fri Oct 01 16:45:50 2021 +0000 |
tree | 45331511759b1dccee54302221197c3add21065e | |
parent | 709c2f93ee65d50a089f8c042f950df65b630332 [diff] | |
parent | 39ae5b5d3e2dfe53b0c61273422d5ce32612195e [diff] |
Update TEST_MAPPING am: 68d81bfa50 am: 43c539dc08 am: 0259ce9d49 am: f478b28da2 am: 39ae5b5d3e Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/cfg-if/+/1842388 Change-Id: Ib792ef6157949affe10cb617aeb365d3b1ae4734
A macro to ergonomically define an item depending on a large number of #[cfg] parameters. Structured like an if-else chain, the first matching branch is the item that gets emitted.
[dependencies] cfg-if = "0.1"
cfg_if::cfg_if! { if #[cfg(unix)] { fn foo() { /* unix specific functionality */ } } else if #[cfg(target_pointer_width = "32")] { fn foo() { /* non-unix, 32-bit functionality */ } } else { fn foo() { /* fallback implementation */ } } } fn main() { foo(); }
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