42 lines
1.3 KiB
Rust
42 lines
1.3 KiB
Rust
// Copyright 2024 Brian Smith.
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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// SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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// OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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// CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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use super::Word;
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use core::ops;
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// BoolMask is either `BoolMask::TRUE` or `BoolMask::FALSE`.
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#[repr(transparent)]
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pub struct BoolMask(Word);
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impl BoolMask {
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#[cfg(test)]
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pub(super) const TRUE: Self = Self(Word::MAX);
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#[cfg(test)]
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pub(super) const FALSE: Self = Self(0);
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/// Returns true if `self` is `BoolMask::TRUE`; otherwise, returns false
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/// (`self` is `BoolMask::FALSE`).
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pub(crate) fn leak(self) -> bool {
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self.0 != 0
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}
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}
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impl ops::BitAnd for BoolMask {
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type Output = Self;
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fn bitand(self, rhs: Self) -> Self {
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Self(self.0 & rhs.0)
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}
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}
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