1 files changed, 114 insertions, 0 deletions
diff --git a/vendor/orion/src/util/u64x4.rs b/vendor/orion/src/util/u64x4.rs
new file mode 100644
index 0000000..bc181c4
--- /dev/null
+++ b/vendor/orion/src/util/u64x4.rs
@@ -0,0 +1,114 @@
+// MIT License
+
+// Copyright (c) 2019-2023 The orion Developers
+
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+#[derive(Clone, Copy, Default)]
+pub(crate) struct U64x4(
+    pub(crate) u64,
+    pub(crate) u64,
+    pub(crate) u64,
+    pub(crate) u64,
+);
+
+impl core::ops::BitXor for U64x4 {
+    type Output = Self;
+
+    #[must_use]
+    fn bitxor(self, _rhs: Self) -> Self::Output {
+        Self(
+            self.0 ^ _rhs.0,
+            self.1 ^ _rhs.1,
+            self.2 ^ _rhs.2,
+            self.3 ^ _rhs.3,
+        )
+    }
+}
+
+impl core::ops::BitXorAssign for U64x4 {
+    fn bitxor_assign(&mut self, _rhs: Self) {
+        self.0 ^= _rhs.0;
+        self.1 ^= _rhs.1;
+        self.2 ^= _rhs.2;
+        self.3 ^= _rhs.3;
+    }
+}
+
+impl zeroize::Zeroize for U64x4 {
+    fn zeroize(&mut self) {
+        self.0.zeroize();
+        self.1.zeroize();
+        self.2.zeroize();
+        self.3.zeroize();
+    }
+}
+
+#[cfg(test)]
+impl PartialEq<U64x4> for U64x4 {
+    fn eq(&self, other: &Self) -> bool {
+        self.0 == other.0 && self.1 == other.1 && self.2 == other.2 && self.3 == other.3
+    }
+}
+
+impl U64x4 {
+    #[must_use]
+    pub(crate) const fn wrapping_add(self, _rhs: Self) -> Self {
+        Self(
+            self.0.wrapping_add(_rhs.0),
+            self.1.wrapping_add(_rhs.1),
+            self.2.wrapping_add(_rhs.2),
+            self.3.wrapping_add(_rhs.3),
+        )
+    }
+
+    #[must_use]
+    pub(crate) const fn shl_1(self) -> Self {
+        Self(self.1, self.2, self.3, self.0)
+    }
+
+    #[must_use]
+    pub(crate) const fn shl_2(self) -> Self {
+        Self(self.2, self.3, self.0, self.1)
+    }
+
+    #[must_use]
+    pub(crate) const fn shl_3(self) -> Self {
+        Self(self.3, self.0, self.1, self.2)
+    }
+
+    #[must_use]
+    pub(crate) const fn rotate_right(self, n: u32) -> Self {
+        Self(
+            self.0.rotate_right(n),
+            self.1.rotate_right(n),
+            self.2.rotate_right(n),
+            self.3.rotate_right(n),
+        )
+    }
+
+    pub(crate) fn store_into_le(self, slice_in: &mut [u8]) {
+        debug_assert_eq!(slice_in.len(), core::mem::size_of::<u64>() * 4);
+        let mut iter = slice_in.chunks_exact_mut(core::mem::size_of::<u64>());
+        iter.next().unwrap().copy_from_slice(&self.0.to_le_bytes());
+        iter.next().unwrap().copy_from_slice(&self.1.to_le_bytes());
+        iter.next().unwrap().copy_from_slice(&self.2.to_le_bytes());
+        iter.next().unwrap().copy_from_slice(&self.3.to_le_bytes());
+    }
+}