Method is_last_child

crates/csskit/src/commands/tree.rs:90–114

Check if `node_idx` is the last direct child of its parent.

(&self, node_idx: usize)

	/// Check if `node_idx` is the last direct child of its parent.
	fn is_last_child(&self, node_idx: usize) -> bool {
		let node_depth = self.nodes[node_idx].depth;
		if node_depth == 0 {
			return false;
		}

		let Some(parent_idx) = self.find_ancestor_at_depth(node_idx, node_depth - 1) else {
			return false;
		};

		let parent = &self.nodes[parent_idx];
		let parent_depth = parent.depth;

		// Find the last direct child of the parent
		let mut last_child_idx = None;
		for j in parent.child_start_idx..self.nodes.len() {
			if self.nodes[j].depth == parent_depth + 1 {
				last_child_idx = Some(j);
			} else if self.nodes[j].depth <= parent_depth {
				break;
			}
		}

		last_child_idx == Some(node_idx)
	}
}

#[visitor]