






from __future__ import annotations

from collections.abc import Iterable
from dataclasses import dataclass
from typing import Any





class __lowerCamelCase					:





	"""simple docstring"""






	UpperCamelCase__								= ("_front", "_back", "_len")





	@dataclass
	class __lowerCamelCase					:





		"""simple docstring"""






		UpperCamelCase__								= None
		UpperCamelCase__								= None
		UpperCamelCase__								= None





	class __lowerCamelCase					:





		"""simple docstring"""






		UpperCamelCase__								= ("_cur",)

		def __init__(				self			,       UpperCAmelCase       ):
								"""simple docstring"""







								_UpperCAmelCase							   =     cur

		def __iter__(				self       ):
								"""simple docstring"""







								return self

		def 			UpperCamelCase       (				self       ):
								"""simple docstring"""







								if self._cur is None:
														# finished iterating
														raise StopIteration
								_UpperCAmelCase							   =     self._cur.val
								_UpperCAmelCase							   =     self._cur.next_node

								return val



	def __init__(				self			,       UpperCAmelCase = None       ):
							"""simple docstring"""







							_UpperCAmelCase							   =     None
							_UpperCAmelCase							   =     None
							_UpperCAmelCase							   =     0

							if iterable is not None:
													# append every value to the deque
													for val in iterable:
																			self.append(UpperCAmelCase       )

	def 			UpperCamelCase       (				self			,       UpperCAmelCase       ):
							"""simple docstring"""







							_UpperCAmelCase							   =     self._Node(UpperCAmelCase			,       UpperCAmelCase			,       UpperCAmelCase       )
							if self.is_empty():
													# front = back
													_UpperCAmelCase							   =     _UpperCAmelCase							   =     node
													_UpperCAmelCase							   =     1
							else:
													# connect nodes
													_UpperCAmelCase							   =     node
													_UpperCAmelCase							   =     self._back
													_UpperCAmelCase							   =     node  # assign new back to the new node

													self._len += 1

													# make sure there were no errors
													assert not self.is_empty(), "Error on appending value."

	def 			UpperCamelCase       (				self			,       UpperCAmelCase       ):
							"""simple docstring"""







							_UpperCAmelCase							   =     self._Node(UpperCAmelCase			,       UpperCAmelCase			,       UpperCAmelCase       )
							if self.is_empty():
													# front = back
													_UpperCAmelCase							   =     _UpperCAmelCase							   =     node
													_UpperCAmelCase							   =     1
							else:
													# connect nodes
													_UpperCAmelCase							   =     self._front
													_UpperCAmelCase							   =     node
													_UpperCAmelCase							   =     node  # assign new front to the new node

													self._len += 1

													# make sure there were no errors
													assert not self.is_empty(), "Error on appending value."

	def 			UpperCamelCase       (				self			,       UpperCAmelCase       ):
							"""simple docstring"""







							for val in iterable:
													self.append(UpperCAmelCase       )

	def 			UpperCamelCase       (				self			,       UpperCAmelCase       ):
							"""simple docstring"""







							for val in iterable:
													self.appendleft(UpperCAmelCase       )

	def 			UpperCamelCase       (				self       ):
							"""simple docstring"""







							assert not self.is_empty(), "Deque is empty."

							_UpperCAmelCase							   =     self._back
							_UpperCAmelCase							   =     self._back.prev_node  # set new back
							# drop the last node - python will deallocate memory automatically
							_UpperCAmelCase							   =     None

							self._len -= 1

							return topop.val

	def 			UpperCamelCase       (				self       ):
							"""simple docstring"""







							assert not self.is_empty(), "Deque is empty."

							_UpperCAmelCase							   =     self._front
							_UpperCAmelCase							   =     self._front.next_node  # set new front and drop the first node
							_UpperCAmelCase							   =     None

							self._len -= 1

							return topop.val

	def 			UpperCamelCase       (				self       ):
							"""simple docstring"""







							return self._front is None

	def __len__(				self       ):
							"""simple docstring"""







							return self._len

	def __eq__(				self			,       UpperCAmelCase       ):
							"""simple docstring"""







							if not isinstance(UpperCAmelCase			,       UpperCAmelCase       ):
													return NotImplemented

							_UpperCAmelCase							   =     self._front
							_UpperCAmelCase							   =     other._front

							# if the length of the dequeues are not the same, they are not equal
							if len(self       ) != len(UpperCAmelCase       ):
													return False

							while me is not None and oth is not None:
													# compare every value
													if me.val != oth.val:
																			return False
													_UpperCAmelCase							   =     me.next_node
													_UpperCAmelCase							   =     oth.next_node

							return True

	def __iter__(				self       ):
							"""simple docstring"""







							return Deque._Iterator(self._front       )

	def __repr__(				self       ):
							"""simple docstring"""







							_UpperCAmelCase							   =     []
							_UpperCAmelCase							   =     self._front
							while aux is not None:
													# append the values in a list to display
													values_list.append(aux.val       )
													_UpperCAmelCase							   =     aux.next_node

							return F"""[{", ".join(repr(UpperCAmelCase       ) for val in values_list       )}]"""


if __name__ == "__main__":
		import doctest

		doctest.testmod()








import argparse
import os
import re


# All paths are set with the intent you should run this script from the root of the repo with the command
# python utils/check_dummies.py
_a       =    '''src/transformers'''

# Matches is_xxx_available()
_a       =    re.compile(r'''is\_([a-z_]*)_available()''')
# Matches from xxx import bla
_a       =    re.compile(r'''\s+from\s+\S*\s+import\s+([^\(\s].*)\n''')
_a       =    re.compile(r'''^\s+if\s+not\s+\(?is\_[a-z_]*\_available\(\)''')


_a       =    '''
{0} = None
'''

_a       =    '''
class {0}(metaclass=DummyObject):
    _backends = {1}

    def __init__(self, *args, **kwargs):
        requires_backends(self, {1})
'''


_a       =    '''
def {0}(*args, **kwargs):
    requires_backends({0}, {1})
'''


def __A       ( __lowerCAmelCase      )->    str:





						"""simple docstring"""



						if _re_test_backend.search(__lowerCAmelCase      ) is None:
												return None
						_UpperCAmelCase							   =     [b[0] for b in _re_backend.findall(__lowerCAmelCase      )]
						backends.sort()
						return "_and_".join(__lowerCAmelCase      )


def __A       ( )->    int:





						"""simple docstring"""



						with open(os.path.join(__lowerCAmelCase					,						'__init__.py'      )					,						'r'					,						encoding='utf-8'					,						newline='\n'      ) as f:
												_UpperCAmelCase							   =     f.readlines()

						# Get to the point we do the actual imports for type checking
						_UpperCAmelCase							   =     0
						while not lines[line_index].startswith('if TYPE_CHECKING'      ):
												line_index += 1

						_UpperCAmelCase							   =     {}
						# Go through the end of the file
						while line_index < len(__lowerCAmelCase      ):
												# If the line is an if is_backend_available, we grab all objects associated.
												_UpperCAmelCase							   =     find_backend(lines[line_index]      )
												if backend is not None:
																		while not lines[line_index].startswith('    else:'      ):
																								line_index += 1
																		line_index += 1

																		_UpperCAmelCase							   =     []
																		# Until we unindent, add backend objects to the list
																		while len(lines[line_index]      ) <= 1 or lines[line_index].startswith(' ' * 8      ):
																								_UpperCAmelCase							   =     lines[line_index]
																								_UpperCAmelCase							   =     _re_single_line_import.search(__lowerCAmelCase      )
																								if single_line_import_search is not None:
																														objects.extend(single_line_import_search.groups()[0].split(', '      )      )
																								elif line.startswith(' ' * 12      ):
																														objects.append(line[12:-2]      )
																								line_index += 1

																		_UpperCAmelCase							   =     objects
												else:
																		line_index += 1

						return backend_specific_objects


def __A       ( __lowerCAmelCase					,						__lowerCAmelCase      )->    Any:





						"""simple docstring"""



						if name.isupper():
												return DUMMY_CONSTANT.format(__lowerCAmelCase      )
						elif name.islower():
												return DUMMY_FUNCTION.format(__lowerCAmelCase					,						__lowerCAmelCase      )
						else:
												return DUMMY_CLASS.format(__lowerCAmelCase					,						__lowerCAmelCase      )


def __A       ( __lowerCAmelCase=None      )->    Union[str, Any]:





						"""simple docstring"""



						if backend_specific_objects is None:
												_UpperCAmelCase							   =     read_init()
						# For special correspondence backend to module name as used in the function requires_modulename
						_UpperCAmelCase							   =     {}

						for backend, objects in backend_specific_objects.items():
												_UpperCAmelCase							   =     '[' + ', '.join(F"""\"{b}\"""" for b in backend.split('_and_'      )      ) + ']'
												_UpperCAmelCase							   =     '# This file is autogenerated by the command `make fix-copies`, do not edit.\n'
												dummy_file += "from ..utils import DummyObject, requires_backends\n\n"
												dummy_file += "\n".join([create_dummy_object(__lowerCAmelCase					,						__lowerCAmelCase      ) for o in objects]      )
												_UpperCAmelCase							   =     dummy_file

						return dummy_files


def __A       ( __lowerCAmelCase=False      )->    int:





						"""simple docstring"""



						_UpperCAmelCase							   =     create_dummy_files()
						# For special correspondence backend to shortcut as used in utils/dummy_xxx_objects.py
						_UpperCAmelCase							   =     {'torch': 'pt'}

						# Locate actual dummy modules and read their content.
						_UpperCAmelCase							   =     os.path.join(__lowerCAmelCase					,						'utils'      )
						_UpperCAmelCase							   =     {
						    backend: os.path.join(__lowerCAmelCase					,						F"""dummy_{short_names.get(__lowerCAmelCase					,						__lowerCAmelCase      )}_objects.py"""      )
						    for backend in dummy_files.keys()
						}

						_UpperCAmelCase							   =     {}
						for backend, file_path in dummy_file_paths.items():
												if os.path.isfile(__lowerCAmelCase      ):
																		with open(__lowerCAmelCase					,						'r'					,						encoding='utf-8'					,						newline='\n'      ) as f:
																								_UpperCAmelCase							   =     f.read()
												else:
																		_UpperCAmelCase							   =     ''

						for backend in dummy_files.keys():
												if dummy_files[backend] != actual_dummies[backend]:
																		if overwrite:
																								print(
																								    F"""Updating transformers.utils.dummy_{short_names.get(__lowerCAmelCase					,						__lowerCAmelCase      )}_objects.py as the main """
																								    '__init__ has new objects.'      )
																								with open(dummy_file_paths[backend]					,						'w'					,						encoding='utf-8'					,						newline='\n'      ) as f:
																														f.write(dummy_files[backend]      )
																		else:
																								raise ValueError(
																								    'The main __init__ has objects that are not present in '
																								    F"""transformers.utils.dummy_{short_names.get(__lowerCAmelCase					,						__lowerCAmelCase      )}_objects.py. Run `make fix-copies` """
																								    'to fix this.'      )


if __name__ == "__main__":
		_a       =    argparse.ArgumentParser()
		parser.add_argument('''--fix_and_overwrite''', action='''store_true''', help='''Whether to fix inconsistencies.''')
		_a       =    parser.parse_args()

		check_dummies(args.fix_and_overwrite)
