mirror of
https://github.com/PiBrewing/craftbeerpi4.git
synced 2024-11-26 17:05:31 +01:00
45 lines
1.4 KiB
Python
45 lines
1.4 KiB
Python
# Copyright (c) 2016, 2018 Claudiu Popa <pcmanticore@gmail.com>
|
|
|
|
# Licensed under the LGPL: https://www.gnu.org/licenses/old-licenses/lgpl-2.1.en.html
|
|
# For details: https://github.com/PyCQA/astroid/blob/master/COPYING.LESSER
|
|
|
|
"""Astroid brain hints for some of the _io C objects."""
|
|
|
|
import astroid
|
|
|
|
|
|
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 = astroid.MANAGER.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)
|
|
|
|
|
|
astroid.MANAGER.register_transform(
|
|
astroid.ClassDef, _transform_buffered, lambda node: node.name in BUFFERED
|
|
)
|
|
astroid.MANAGER.register_transform(
|
|
astroid.ClassDef,
|
|
_transform_text_io_wrapper,
|
|
lambda node: node.name == TextIOWrapper,
|
|
)
|