fix: skip root to get the right path

This commit is contained in:
appflowy 2022-09-08 18:05:07 +08:00
parent 89a5ee4a8a
commit d386698e97
2 changed files with 19 additions and 25 deletions

View File

@ -23,6 +23,21 @@ impl DocumentTree {
DocumentTree { arena, root }
}
///
/// # Examples
///
/// ```
/// use lib_ot::core::{DocumentOperation, DocumentTree, NodeSubTree, Path};
/// let nodes = vec![NodeSubTree::new("text")];
/// let root_path: Path = vec![0].into();
/// let op = DocumentOperation::Insert {path: root_path.clone(),nodes };
///
/// let mut document = DocumentTree::new();
/// document.apply_op(&op).unwrap();
/// let node_id = document.node_at_path(&root_path).unwrap();
/// let node_path = document.path_of_node(node_id);
/// debug_assert_eq!(node_path, root_path);
/// ```
pub fn node_at_path<T: Into<Path>>(&self, path: T) -> Option<NodeId> {
let path = path.into();
if path.is_empty() {
@ -36,30 +51,9 @@ impl DocumentTree {
Some(iterate_node)
}
///
///
/// # Arguments
///
/// * `node_id`:
///
/// returns: Path
///
/// # Examples
///
/// ```
/// use lib_ot::core::{DocumentOperation, DocumentTree, NodeSubTree, Path};
/// let text_node = NodeSubTree::new("text");
/// let path: Path = vec![0].into();
/// let op = DocumentOperation::Insert {path: path.clone(),nodes: vec![text_node
/// ]};
/// let mut document = DocumentTree::new();
/// document.apply_op(&op).unwrap();
/// let node_id = document.node_at_path(&path).unwrap();
///
/// ```
pub fn path_of_node(&self, node_id: NodeId) -> Path {
let mut path: Vec<usize> = Vec::new();
let mut ancestors = node_id.ancestors(&self.arena);
let mut ancestors = node_id.ancestors(&self.arena).skip(1);
let mut current_node = node_id;
let mut parent = ancestors.next();
@ -76,10 +70,8 @@ impl DocumentTree {
fn index_of_node(&self, parent_node: NodeId, child_node: NodeId) -> usize {
let mut counter: usize = 0;
let mut children_iterator = parent_node.children(&self.arena);
let mut node = children_iterator.next();
while node.is_some() {
if node.unwrap() == child_node {
return counter;

View File

@ -1,4 +1,6 @@
#[derive(Clone, serde::Serialize, serde::Deserialize)]
use serde::{Serialize, Deserialize};
#[derive(Clone, Serialize, Deserialize, Eq, PartialEq, Debug)]
pub struct Path(pub Vec<usize>);
impl std::ops::Deref for Path {