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# Copyright (c) Meta Platforms, Inc. and affiliates.
#
# This source code is licensed under the Apache License, Version 2.0
# found in the LICENSE file in the root directory of this source tree.
"""
Wrapper utilities for warnings.
"""
import warnings
from functools import wraps
def suppress_traceback(fn):
@wraps(fn)
def wrapper(*args, **kwargs):
try:
return fn(*args, **kwargs)
except Exception as e:
e.__traceback__ = e.__traceback__.tb_next.tb_next
raise
return wrapper
class no_warnings:
def __init__(self, action: str = "ignore", **kwargs):
self.action = action
self.filter_kwargs = kwargs
def __call__(self, fn):
@wraps(fn)
def wrapper(*args, **kwargs):
with warnings.catch_warnings():
warnings.simplefilter(self.action, **self.filter_kwargs)
return fn(*args, **kwargs)
return wrapper
def __enter__(self):
self.warnings_manager = warnings.catch_warnings()
self.warnings_manager.__enter__()
warnings.simplefilter(self.action, **self.filter_kwargs)
def __exit__(self, exc_type, exc_val, exc_tb):
self.warnings_manager.__exit__(exc_type, exc_val, exc_tb)
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