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Copy pathpyio_patches.py
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119 lines (103 loc) · 4.58 KB
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# Copyright (c) 2018, 2020, Oracle and/or its affiliates. All rights reserved.
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
#
# The Universal Permissive License (UPL), Version 1.0
#
# Subject to the condition set forth below, permission is hereby granted to any
# person obtaining a copy of this software, associated documentation and/or
# data (collectively the "Software"), free of charge and under any and all
# copyright rights in the Software, and any and all patent rights owned or
# freely licensable by each licensor hereunder covering either (i) the
# unmodified Software as contributed to or provided by such licensor, or (ii)
# the Larger Works (as defined below), to deal in both
#
# (a) the Software, and
#
# (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
# one is included with the Software each a "Larger Work" to which the Software
# is contributed by such licensors),
#
# without restriction, including without limitation the rights to copy, create
# derivative works of, display, perform, and distribute the Software and make,
# use, sell, offer for sale, import, export, have made, and have sold the
# Software and the Larger Work(s), and to sublicense the foregoing rights on
# either these or other terms.
#
# This license is subject to the following condition:
#
# The above copyright notice and either this complete permission notice or at a
# minimum a reference to the UPL must be included in all copies or substantial
# portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
# at this point during context startup, sys.path isn't initialized, so we need
# to set it up
import sys
sys.path.append(__graalpython__.stdlib_home)
try:
import _pyio
import io
finally:
assert len(sys.path) == 1
sys.path.pop()
import _io
import _sysconfig
import builtins
# ----------------------------------------------------------------------------------------------------------------------
#
# patch _io
#
# ----------------------------------------------------------------------------------------------------------------------
@__graalpython__.builtin
def open(*args, **kwargs):
return _pyio.open(*args, **kwargs)
for module in [_io, io]:
setattr(module, 'open', open)
setattr(module, 'TextIOWrapper', _pyio.TextIOWrapper)
setattr(module, 'IncrementalNewlineDecoder', _pyio.IncrementalNewlineDecoder)
setattr(module, 'BufferedRandom', _pyio.BufferedRandom)
setattr(module, 'BufferedRWPair', _pyio.BufferedRWPair)
setattr(module, 'BufferedWriter', _pyio.BufferedWriter)
setattr(module, 'BufferedReader', _pyio.BufferedReader)
setattr(module, 'StringIO', _pyio.StringIO)
setattr(module, '_IOBase', _pyio.IOBase)
setattr(module, 'BufferedIOBase', _pyio.BufferedIOBase)
setattr(module, 'RawIOBase', _pyio.RawIOBase)
setattr(module, 'FileIO', _pyio.FileIO)
setattr(module, 'BytesIO', _pyio.BytesIO)
setattr(module, '_TextIOBase', _pyio.TextIOBase)
setattr(builtins, 'open', open)
sys.stdin = _pyio.TextIOWrapper(_pyio.BufferedReader(sys.stdin), encoding="utf-8", line_buffering=True)
sys.stdin.mode = "r"
sys.__stdin__ = sys.stdin
sys.stdout = _pyio.TextIOWrapper(_pyio.BufferedWriter(sys.stdout), encoding="utf-8", line_buffering=True)
sys.stdout.mode = "w"
sys.__stdout__ = sys.stdout
sys.stderr = _pyio.TextIOWrapper(_pyio.BufferedWriter(sys.stderr), encoding="utf-8", line_buffering=True)
sys.stderr.mode = "w"
sys.__stderr__ = sys.stderr
# Try to close the std streams when we exit. This currently doesn't work due to GR-25185
# To make this work reliably, we probably have to implement the _io module in Java
# import atexit
# def close_stdouts(so=sys.stdout, se=sys.stderr):
# try:
# so.close()
# except:
# pass
# try:
# se.close()
# except:
# pass
# atexit.register(close_stdouts)
# See comment in _pyio.py. This method isn't strictly necessary and is provided
# on CPython for performance. Because it goes through memoryview, it is slower
# for us due to the overhead of memoryview being in C and the warmup cost
# associated with that. We remove it and rely on the (for us faster) base
# implementation.
del _pyio.BufferedReader._readinto