#[macro_export] macro_rules! bitflags_impl_to_apple { ($self:ident = $($x:ident),*) => {{ let mut apple = 0; $( if $self.contains(Self::$x) { apple |= libc::$x; } )* apple }}; } #[macro_export] macro_rules! bitflags_impl_from_apple { ($apple:ident = $($x:ident),*) => {{ let mut linux = Self::empty(); $( if ($apple & libc::$x) != 0 { linux |= Self::$x; } )* linux }}; } #[macro_export] macro_rules! bitflags_impl_from_to_apple_permissive { (type Apple = $ty:ty; values = $($x:ident),*) => { pub fn from_apple(apple: $ty) -> Self { $crate::bitflags_impl_from_apple!(apple = $($x),*) } pub fn to_apple(self) -> $ty { $crate::bitflags_impl_to_apple!(self = $($x),*) } }; } bitflags::bitflags! { #[derive(Debug, Clone, Copy, PartialEq, Eq)] pub struct OpenFlags: u32 { const O_RDONLY = 0; const O_WRONLY = 1; const O_RDWR = 2; const O_CREAT = 0o100; const O_EXCL = 0o200; const O_NOCTTY = 0o400; const O_TRUNC = 0o1000; const O_NONBLOCK = 0o4000; const O_DSYNC = 0o10000; const O_ASYNC = 0o20000; const O_DIRECT = 0o40000; const O_LARGEFILE = 0o100000; const O_DIRECTORY = 0o200000; const O_NOFOLLOW = 0o400000; const O_NOATIME = 0o1000000; const O_CLOEXEC = 0o2000000; const O_SYNC = 0o4010000; const O_PATH = 0o10000000; const O_TMPFILE = 0o20200000; } } impl OpenFlags { bitflags_impl_from_to_apple_permissive!( type Apple = libc::c_int; values = O_RDONLY, O_WRONLY, O_RDWR, O_CREAT, O_EXCL, O_NOCTTY, O_TRUNC, O_NONBLOCK, O_DSYNC, O_ASYNC, O_DIRECTORY, O_NOFOLLOW, O_CLOEXEC, O_SYNC ); }

// ... bitflags_impl_from_to_apple_permissive!( type Apple = libc::c_int;, // ...