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path: root/tvix/castore/src/nodes/symlink_node.rs
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Diffstat (limited to 'tvix/castore/src/nodes/symlink_node.rs')
-rw-r--r--tvix/castore/src/nodes/symlink_node.rs50
1 files changed, 50 insertions, 0 deletions
diff --git a/tvix/castore/src/nodes/symlink_node.rs b/tvix/castore/src/nodes/symlink_node.rs
new file mode 100644
index 000000000000..2fac27231a85
--- /dev/null
+++ b/tvix/castore/src/nodes/symlink_node.rs
@@ -0,0 +1,50 @@
+use crate::{NamedNode, ValidateNodeError};
+
+/// A SymlinkNode represents a symbolic link in a Directory or at the root.
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct SymlinkNode {
+    /// The (base)name of the symlink
+    name: bytes::Bytes,
+    /// The target of the symlink.
+    target: bytes::Bytes,
+}
+
+impl SymlinkNode {
+    pub fn new(name: bytes::Bytes, target: bytes::Bytes) -> Result<Self, ValidateNodeError> {
+        if target.is_empty() || target.contains(&b'\0') {
+            return Err(ValidateNodeError::InvalidSymlinkTarget(target));
+        }
+        Ok(Self { name, target })
+    }
+
+    pub fn target(&self) -> &bytes::Bytes {
+        &self.target
+    }
+
+    pub(crate) fn rename(self, name: bytes::Bytes) -> Self {
+        Self { name, ..self }
+    }
+}
+
+impl PartialOrd for SymlinkNode {
+    fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {
+        Some(self.cmp(other))
+    }
+}
+
+impl Ord for SymlinkNode {
+    fn cmp(&self, other: &Self) -> std::cmp::Ordering {
+        self.get_name().cmp(other.get_name())
+    }
+}
+
+impl NamedNode for &SymlinkNode {
+    fn get_name(&self) -> &bytes::Bytes {
+        &self.name
+    }
+}
+impl NamedNode for SymlinkNode {
+    fn get_name(&self) -> &bytes::Bytes {
+        &self.name
+    }
+}