Merging upstream version 1.68.2+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 179 insertions, 0 deletions

diff --git a/vendor/twox-hash/src/digest_support.rs b/vendor/twox-hash/src/digest_support.rs
new file mode 100644
index 000000000..7b00b9d80
--- /dev/null
+++ b/vendor/twox-hash/src/digest_support.rs
@@ -0,0 +1,179 @@
+use core::hash::Hasher;
+
+use digest::{
+    generic_array::{
+        typenum::consts::{U16, U4, U8},
+        GenericArray,
+    },
+    Digest,
+};
+
+use crate::{xxh3, XxHash32, XxHash64};
+
+impl Digest for XxHash32 {
+    type OutputSize = U4;
+
+    fn new() -> Self {
+        Self::default()
+    }
+
+    fn input<B: AsRef<[u8]>>(&mut self, data: B) {
+        self.write(data.as_ref());
+    }
+
+    fn chain<B: AsRef<[u8]>>(mut self, data: B) -> Self
+    where
+        Self: Sized,
+    {
+        self.input(data);
+        self
+    }
+
+    fn result(self) -> GenericArray<u8, Self::OutputSize> {
+        self.finish().to_be_bytes().into()
+    }
+
+    fn result_reset(&mut self) -> GenericArray<u8, Self::OutputSize> {
+        let result = self.result();
+        self.reset();
+        result
+    }
+
+    fn reset(&mut self) {
+        *self = Self::default();
+    }
+
+    fn output_size() -> usize {
+        4
+    }
+
+    fn digest(data: &[u8]) -> GenericArray<u8, Self::OutputSize> {
+        Self::new().chain(data).result()
+    }
+}
+
+impl Digest for XxHash64 {
+    type OutputSize = U8;
+
+    fn new() -> Self {
+        Self::default()
+    }
+
+    fn input<B: AsRef<[u8]>>(&mut self, data: B) {
+        self.write(data.as_ref());
+    }
+
+    fn chain<B: AsRef<[u8]>>(mut self, data: B) -> Self
+    where
+        Self: Sized,
+    {
+        self.input(data);
+        self
+    }
+
+    fn result(self) -> GenericArray<u8, Self::OutputSize> {
+        self.finish().to_be_bytes().into()
+    }
+
+    fn result_reset(&mut self) -> GenericArray<u8, Self::OutputSize> {
+        let result = self.result();
+        self.reset();
+        result
+    }
+
+    fn reset(&mut self) {
+        *self = Self::default();
+    }
+
+    fn output_size() -> usize {
+        8
+    }
+
+    fn digest(data: &[u8]) -> GenericArray<u8, Self::OutputSize> {
+        Self::new().chain(data).result()
+    }
+}
+
+impl Digest for xxh3::Hash64 {
+    type OutputSize = U8;
+
+    fn new() -> Self {
+        Self::default()
+    }
+
+    fn input<B: AsRef<[u8]>>(&mut self, data: B) {
+        self.write(data.as_ref());
+    }
+
+    fn chain<B: AsRef<[u8]>>(mut self, data: B) -> Self
+    where
+        Self: Sized,
+    {
+        self.input(data);
+        self
+    }
+
+    fn result(self) -> GenericArray<u8, Self::OutputSize> {
+        self.finish().to_be_bytes().into()
+    }
+
+    fn result_reset(&mut self) -> GenericArray<u8, Self::OutputSize> {
+        let result = self.clone().result();
+        self.reset();
+        result
+    }
+
+    fn reset(&mut self) {
+        *self = Self::default();
+    }
+
+    fn output_size() -> usize {
+        8
+    }
+
+    fn digest(data: &[u8]) -> GenericArray<u8, Self::OutputSize> {
+        Self::new().chain(data).result()
+    }
+}
+
+impl Digest for xxh3::Hash128 {
+    type OutputSize = U16;
+
+    fn new() -> Self {
+        Self::default()
+    }
+
+    fn input<B: AsRef<[u8]>>(&mut self, data: B) {
+        self.write(data.as_ref());
+    }
+
+    fn chain<B: AsRef<[u8]>>(mut self, data: B) -> Self
+    where
+        Self: Sized,
+    {
+        self.input(data);
+        self
+    }
+
+    fn result(self) -> GenericArray<u8, Self::OutputSize> {
+        xxh3::HasherExt::finish_ext(&self).to_be_bytes().into()
+    }
+
+    fn result_reset(&mut self) -> GenericArray<u8, Self::OutputSize> {
+        let result = self.clone().result();
+        self.reset();
+        result
+    }
+
+    fn reset(&mut self) {
+        *self = Self::default();
+    }
+
+    fn output_size() -> usize {
+        8
+    }
+
+    fn digest(data: &[u8]) -> GenericArray<u8, Self::OutputSize> {
+        Self::new().chain(data).result()
+    }
+}