commit | d064c23919a9c2caad6c107881ce22b08b1a3c17 | [log] [tgz] |
---|---|---|
author | Joel Galenson <jgalenson@google.com> | Tue Aug 24 20:21:05 2021 +0000 |
committer | Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com> | Tue Aug 24 20:21:05 2021 +0000 |
tree | ddb7e7d814fc443481b6c47b3b3268725d638d6c | |
parent | 17d93348a8f155b9494ca686a6e619f846d2af82 [diff] | |
parent | 7fbfed936bbae6bddc0bc395595efc0defc5a745 [diff] |
Update TEST_MAPPING am: 77fd95d8bc am: bea6e06c55 am: 638091cf9c am: 77b27f8570 am: 7fbfed936b Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/cfg-if/+/1806118 Change-Id: Id32e944aad149b49612905a31842ed76d8d30fe2
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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