1 files changed, 16 insertions, 0 deletions
diff --git a/tvix/nix-compat/src/nix_daemon/protocol_version.rs b/tvix/nix-compat/src/nix_daemon/protocol_version.rs
index 8fd2b085c962..19da28d484dd 100644
--- a/tvix/nix-compat/src/nix_daemon/protocol_version.rs
+++ b/tvix/nix-compat/src/nix_daemon/protocol_version.rs
@@ -1,3 +1,6 @@
+/// 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
@@ -20,6 +23,12 @@ impl ProtocolVersion {
     }
 }
 
+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))
@@ -45,6 +54,13 @@ impl From<u16> for ProtocolVersion {
     }
 }
 
+#[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;