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"""
The LLVM Compiler Infrastructure
This file is distributed under the University of Illinois Open Source
License. See LICENSE.TXT for details.
Prepares language bindings for LLDB build process. Run with --help
to see a description of the supported command line arguments.
"""
# Python modules:
import io
# Third party modules
import six
def _encoded_read(old_read, encoding):
def impl(size):
result = old_read(size)
# If this is Python 2 then we need to convert the resulting `unicode` back
# into a `str` before returning
if six.PY2:
result = result.encode(encoding)
return result
return impl
def _encoded_write(old_write, encoding):
def impl(s):
# If we were asked to write a `str` (in Py2) or a `bytes` (in Py3) decode it
# as unicode before attempting to write.
if isinstance(s, six.binary_type):
s = s.decode(encoding)
return old_write(s)
return impl
'''
Create a Text I/O file object that can be written to with either unicode strings or byte strings
under Python 2 and Python 3, and automatically encodes and decodes as necessary to return the
native string type for the current Python version
'''
def open(file, encoding, mode='r', buffering=-1, errors=None, newline=None, closefd=True):
wrapped_file = io.open(file, mode=mode, buffering=buffering, encoding=encoding,
errors=errors, newline=newline, closefd=closefd)
new_read = _encoded_read(getattr(wrapped_file, 'read'), encoding)
new_write = _encoded_write(getattr(wrapped_file, 'write'), encoding)
setattr(wrapped_file, 'read', new_read)
setattr(wrapped_file, 'write', new_write)
return wrapped_file
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