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| author | Dan Gohman <dev@sunfishcode.online> | 2022-05-11 07:17:52 -0700 |
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| committer | Dan Gohman <dev@sunfishcode.online> | 2022-05-11 07:26:49 -0700 |
| commit | 90ff6fcd4ec4a91b9d0a4956d3fd8459931f2de4 (patch) | |
| tree | 1658c667bcc8a8245c9d24d591cbc4c74e35fb11 /compiler/rustc_mir_transform/src/coverage/debug.rs | |
| parent | ecd44958e0a21110d09862ee080d95a4ca6c52f8 (diff) | |
| download | rust-90ff6fcd4ec4a91b9d0a4956d3fd8459931f2de4.tar.gz rust-90ff6fcd4ec4a91b9d0a4956d3fd8459931f2de4.zip | |
Add rustc_nonnull_optimization_guaranteed to Owned/Borrowed Fd/Socket
PR #94586 added support for using `rustc_nonnull_optimization_guaranteed` on values where the "null" value is the all-ones bitpattern. Now that #94586 has made it to the stage0 compiler, add `rustc_nonnull_optimization_guaranteed` to `OwnedFd`, `BorrowedFd`, `OwnedSocket`, and `BorrowedSocket`, since these types all exclude all-ones bitpatterns. This allows `Option<OwnedFd>`, `Option<BorrowedFd>`, `Option<OwnedSocket>`, and `Option<BorrowedSocket>` to be used in FFI declarations, as described in the [I/O safety RFC]. [I/O safety RFC]: https://github.com/rust-lang/rfcs/blob/master/text/3128-io-safety.md#ownedfd-and-borrowedfdfd-1
Diffstat (limited to 'compiler/rustc_mir_transform/src/coverage/debug.rs')
0 files changed, 0 insertions, 0 deletions