text: # Licensed under the LGPL: https://www.gnu.org/licenses/old-licenses/lgpl-2.1.en.html
  # For details: https://github.com/PyCQA/astroid/blob/main/LICENSE
  # Copyright (c) https://github.com/PyCQA/astroid/blob/main/CONTRIBUTORS.txt
  
  """Astroid brain hints for some of the _io C objects."""
  from astroid.manager import AstroidManager
  from astroid.nodes import ClassDef
  
  BUFFERED = {"BufferedWriter", "BufferedReader"}
  TextIOWrapper = "TextIOWrapper"
  FileIO = "FileIO"
  BufferedWriter = "BufferedWriter"
  
  
  def _generic_io_transform(node, name, cls):
      """Transform the given name, by adding the given *class* as a member of the node."""
  
      io_module = AstroidManager().ast_from_module_name("_io")
      attribute_object = io_module[cls]
      instance = attribute_object.instantiate_class()
      node.locals[name] = [instance]
  
  
  def _transform_text_io_wrapper(node):
      # This is not always correct, since it can vary with the type of the descriptor,
      # being stdout, stderr or stdin. But we cannot get access to the name of the
      # stream, which is why we are using the BufferedWriter class as a default
      # value
      return _generic_io_transform(node, name="buffer", cls=BufferedWriter)
  
  
  def _transform_buffered(node):
      return _generic_io_transform(node, name="raw", cls=FileIO)
  
  
  AstroidManager().register_transform(
      ClassDef, _transform_buffered, lambda node: node.name in BUFFERED
  )
  AstroidManager().register_transform(
      ClassDef, _transform_text_io_wrapper, lambda node: node.name == TextIOWrapper
  )
  