From 1b6a04ca5504955c571d1c97504fb45ea0befee4 Mon Sep 17 00:00:00 2001 From: Valentin Popov Date: Mon, 8 Jan 2024 01:21:28 +0400 Subject: Initial vendor packages Signed-off-by: Valentin Popov --- vendor/bitflags/examples/custom_derive.rs | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 vendor/bitflags/examples/custom_derive.rs (limited to 'vendor/bitflags/examples/custom_derive.rs') diff --git a/vendor/bitflags/examples/custom_derive.rs b/vendor/bitflags/examples/custom_derive.rs new file mode 100644 index 0000000..5a85afb --- /dev/null +++ b/vendor/bitflags/examples/custom_derive.rs @@ -0,0 +1,23 @@ +//! An example of implementing the `BitFlags` trait manually for a flags type. + +use std::str; + +use bitflags::bitflags; + +// Define a flags type outside of the `bitflags` macro as a newtype +// It can accept custom derives for libaries `bitflags` doesn't support natively +#[derive(zerocopy::AsBytes, zerocopy::FromBytes)] +#[repr(transparent)] +pub struct ManualFlags(u32); + +// Next: use `impl Flags` instead of `struct Flags` +bitflags! { + impl ManualFlags: u32 { + const A = 0b00000001; + const B = 0b00000010; + const C = 0b00000100; + const ABC = Self::A.bits() | Self::B.bits() | Self::C.bits(); + } +} + +fn main() {} -- cgit v1.2.3