Function _tree_item_count

xarray/core/formatting_html.py:458–469

(node: DataTree, cache: dict[int, int])

def _tree_item_count(node: DataTree, cache: dict[int, int]) -> int:
    if id(node) in cache:
        return cache[id(node)]

    node_ds = node.to_dataset(inherit=False)
    node_count = len(node_ds.variables) + len(node_ds.attrs)
    child_count = sum(
        _tree_item_count(child, cache) for child in node.children.values()
    )
    total = node_count + child_count
    cache[id(node)] = total
    return total


@dataclass