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//! This holds types describing nodes in the tvix-castore model.
mod directory;
mod directory_node;
mod file_node;
mod symlink_node;
use bytes::Bytes;
pub use directory::Directory;
pub use directory_node::DirectoryNode;
pub use file_node::FileNode;
pub use symlink_node::SymlinkNode;
/// A Node is either a [DirectoryNode], [FileNode] or [SymlinkNode].
/// While a Node by itself may have any name, only those matching specific requirements
/// can can be added as entries to a [Directory] (see the documentation on [Directory] for details).
#[derive(Debug, Clone, PartialEq, Eq)]
pub enum Node {
Directory(DirectoryNode),
File(FileNode),
Symlink(SymlinkNode),
}
impl Node {
/// Returns the node with a new name.
pub fn rename(self, name: Bytes) -> Self {
match self {
Node::Directory(n) => Node::Directory(n.rename(name)),
Node::File(n) => Node::File(n.rename(name)),
Node::Symlink(n) => Node::Symlink(n.rename(name)),
}
}
}
impl PartialOrd for Node {
fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {
Some(self.cmp(other))
}
}
impl Ord for Node {
fn cmp(&self, other: &Self) -> std::cmp::Ordering {
self.get_name().cmp(other.get_name())
}
}
/// NamedNode is implemented for [FileNode], [DirectoryNode] and [SymlinkNode]
/// and [Node], so we can ask all of them for the name easily.
pub trait NamedNode {
fn get_name(&self) -> &Bytes;
}
impl NamedNode for &Node {
fn get_name(&self) -> &Bytes {
match self {
Node::File(node_file) => node_file.get_name(),
Node::Directory(node_directory) => node_directory.get_name(),
Node::Symlink(node_symlink) => node_symlink.get_name(),
}
}
}
impl NamedNode for Node {
fn get_name(&self) -> &Bytes {
match self {
Node::File(node_file) => node_file.get_name(),
Node::Directory(node_directory) => node_directory.get_name(),
Node::Symlink(node_symlink) => node_symlink.get_name(),
}
}
}
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