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Diffstat (limited to 'tvix/nix-compat/src/nix_daemon/protocol_version.rs')
-rw-r--r--tvix/nix-compat/src/nix_daemon/protocol_version.rs139
1 files changed, 0 insertions, 139 deletions
diff --git a/tvix/nix-compat/src/nix_daemon/protocol_version.rs b/tvix/nix-compat/src/nix_daemon/protocol_version.rs
deleted file mode 100644
index 19da28d484dd..000000000000
--- a/tvix/nix-compat/src/nix_daemon/protocol_version.rs
+++ /dev/null
@@ -1,139 +0,0 @@
-/// The latest version that is currently supported by nix-compat.
-static DEFAULT_PROTOCOL_VERSION: ProtocolVersion = ProtocolVersion::from_parts(1, 37);
-
-/// Protocol versions are represented as a u16.
-/// The upper 8 bits are the major version, the lower bits the minor.
-/// This is not aware of any endianness, use [crate::wire::read_u64] to get an
-/// u64 first, and the try_from() impl from here if you're receiving over the
-/// Nix Worker protocol.
-#[derive(Clone, Copy, Debug, Eq, PartialEq)]
-pub struct ProtocolVersion(u16);
-
-impl ProtocolVersion {
-    pub const fn from_parts(major: u8, minor: u8) -> Self {
-        Self(((major as u16) << 8) | minor as u16)
-    }
-
-    pub fn major(&self) -> u8 {
-        ((self.0 & 0xff00) >> 8) as u8
-    }
-
-    pub fn minor(&self) -> u8 {
-        (self.0 & 0x00ff) as u8
-    }
-}
-
-impl Default for ProtocolVersion {
-    fn default() -> Self {
-        DEFAULT_PROTOCOL_VERSION
-    }
-}
-
-impl PartialOrd for ProtocolVersion {
-    fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {
-        Some(self.cmp(other))
-    }
-}
-
-impl Ord for ProtocolVersion {
-    fn cmp(&self, other: &Self) -> std::cmp::Ordering {
-        match self.major().cmp(&other.major()) {
-            std::cmp::Ordering::Less => std::cmp::Ordering::Less,
-            std::cmp::Ordering::Greater => std::cmp::Ordering::Greater,
-            std::cmp::Ordering::Equal => {
-                // same major, compare minor
-                self.minor().cmp(&other.minor())
-            }
-        }
-    }
-}
-
-impl From<u16> for ProtocolVersion {
-    fn from(value: u16) -> Self {
-        Self::from_parts(((value & 0xff00) >> 8) as u8, (value & 0x00ff) as u8)
-    }
-}
-
-#[cfg(any(test, feature = "test"))]
-impl From<(u8, u8)> for ProtocolVersion {
-    fn from((major, minor): (u8, u8)) -> Self {
-        Self::from_parts(major, minor)
-    }
-}
-
-impl TryFrom<u64> for ProtocolVersion {
-    type Error = &'static str;
-
-    fn try_from(value: u64) -> Result<Self, Self::Error> {
-        if value & !0xffff != 0 {
-            return Err("only two least significant bits might be populated");
-        }
-
-        Ok((value as u16).into())
-    }
-}
-
-impl From<ProtocolVersion> for u16 {
-    fn from(value: ProtocolVersion) -> Self {
-        value.0
-    }
-}
-
-impl From<ProtocolVersion> for u64 {
-    fn from(value: ProtocolVersion) -> Self {
-        value.0 as u64
-    }
-}
-
-impl std::fmt::Display for ProtocolVersion {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        write!(f, "{}.{}", self.major(), self.minor())
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use super::ProtocolVersion;
-
-    #[test]
-    fn from_parts() {
-        let version = ProtocolVersion::from_parts(1, 37);
-        assert_eq!(version.major(), 1, "correct major");
-        assert_eq!(version.minor(), 37, "correct minor");
-        assert_eq!("1.37", &version.to_string(), "to_string");
-
-        assert_eq!(0x0125, Into::<u16>::into(version));
-        assert_eq!(0x0125, Into::<u64>::into(version));
-    }
-
-    #[test]
-    fn from_u16() {
-        let version = ProtocolVersion::from(0x0125_u16);
-        assert_eq!("1.37", &version.to_string());
-    }
-
-    #[test]
-    fn from_u64() {
-        let version = ProtocolVersion::try_from(0x0125_u64).expect("must succeed");
-        assert_eq!("1.37", &version.to_string());
-    }
-
-    /// This contains data in higher bits, which should fail.
-    #[test]
-    fn from_u64_fail() {
-        ProtocolVersion::try_from(0xaa0125_u64).expect_err("must fail");
-    }
-
-    #[test]
-    fn ord() {
-        let v0_37 = ProtocolVersion::from_parts(0, 37);
-        let v1_37 = ProtocolVersion::from_parts(1, 37);
-        let v1_40 = ProtocolVersion::from_parts(1, 40);
-
-        assert!(v0_37 < v1_37);
-        assert!(v1_37 > v0_37);
-        assert!(v1_37 < v1_40);
-        assert!(v1_40 > v1_37);
-        assert!(v1_40 <= v1_40);
-    }
-}