Function recurse

lib/matplotlib/_internal_utils.py:38–56

(root, buf)

    seen = set()

    def recurse(root, buf):
        if id(root) in seen:
            return
        seen.add(id(root))
        props = {}
        label = type(root).__name__
        if root._invalid:
            label = f'[{label}]'
        if root in highlight:
            props['style'] = 'bold'
        props['shape'] = 'box'
        props['label'] = '"%s"' % label
        props = ' '.join(map('{0[0]}={0[1]}'.format, props.items()))
        buf.write(f'{id(root)} [{props}];\n')
        for key, val in vars(root).items():
            if isinstance(val, TransformNode) and id(root) in val._parents:
                buf.write(f'"{id(root)}" -> "{id(val)}" '
                          f'[label="{key}", fontsize=10];\n')
                recurse(val, buf)

    buf = StringIO()
    buf.write('digraph G {\n')