Fix print_tree function when taffy_tree feature is not enabled

src/util/debug.rs

@@ -1,21 +1,20 @@
 #![allow(dead_code)]
 
-use crate::prelude::Measurable;
-use crate::style;
-use crate::tree::{NodeId, Taffy};
+use crate::{style, LayoutTree};
+use crate::tree::{NodeId};
 use core::fmt::{Debug, Display, Write};
 use std::sync::Mutex;
 
 /// Prints a debug representation of the computed layout for a tree of nodes, starting with the passed root node.
-pub fn print_tree<NodeContext>(tree: &Taffy<NodeContext>, root: NodeId) {
+pub fn print_tree(tree: &impl LayoutTree, root: NodeId) {
  println!("TREE");
  print_node(tree, root, false, String::new());
 }
 
-fn print_node<NodeContext>(tree: &Taffy<NodeContext>, node: NodeId, has_sibling: bool, lines_string: String) {
- let layout = &tree.layout(node).unwrap();
- let style = &tree.style(node).unwrap();
- let num_children = tree.child_count(node).unwrap();
+fn print_node(tree: &impl LayoutTree, node: NodeId, has_sibling: bool, lines_string: String) {
+ let layout = &tree.layout(node);
+ let style = &tree.style(node);
+ let num_children = tree.child_count(node);
 
  let display = match (num_children, style.display) {
  (_, style::Display::None) => "NONE",
@@ -44,7 +43,7 @@ fn print_node<NodeContext>(tree: &Taffy<NodeContext>, node: NodeId, has_sibling:
  let new_string = lines_string + bar;
 
  // Recurse into children
- for (index, child) in tree.children(node).unwrap().into_iter().enumerate() {
+ for (index, child) in tree.children(node).into_iter().enumerate() {
  let has_sibling = index < num_children - 1;
  print_node(tree, child, has_sibling, new_string.clone());
  }