13 def rb_first(root):  argument
14     if root.type == rb_root_type.get_type():
15         node = root.address.cast(rb_root_type.get_type().pointer())
16     elif root.type != rb_root_type.get_type().pointer():
17         raise gdb.GdbError("Must be struct rb_root not {}".format(root.type))
19     node = root['rb_node']
29 def rb_last(root):  argument
30     if root.type == rb_root_type.get_type():
31         node = root.address.cast(rb_root_type.get_type().pointer())
32     elif root.type != rb_root_type.get_type().pointer():
33         raise gdb.GdbError("Must be struct rb_root not {}".format(root.type))
35     node = root['rb_node']
109     def invoke(self, root):  argument
110         result = rb_first(root)
129     def invoke(self, root):  argument
130         result = rb_last(root)