in idb/utils/contextlib.py [0:0]
def __exit__(self, type, value, traceback):
if type is None:
try:
next(self.gen)
except StopIteration:
return False
else:
raise RuntimeError("generator didn't stop")
else:
if value is None:
# Need to force instantiation so we can reliably
# tell if we get the same exception back
value = type()
try:
self.gen.throw(type, value, traceback)
except StopIteration as exc:
# Suppress StopIteration *unless* it's the same exception that
# was passed to throw(). This prevents a StopIteration
# raised inside the "with" statement from being suppressed.
return exc is not value
except RuntimeError as exc:
# Don't re-raise the passed in exception. (issue27122)
if exc is value:
return False
# Likewise, avoid suppressing if a StopIteration exception
# was passed to throw() and later wrapped into a RuntimeError
# (see PEP 479).
if type is StopIteration and exc.__cause__ is value:
return False
raise
except: # noqa B001
# only re-raise if it's *not* the exception that was
# passed to throw(), because __exit__() must not raise
# an exception unless __exit__() itself failed. But throw()
# has to raise the exception to signal propagation, so this
# fixes the impedance mismatch between the throw() protocol
# and the __exit__() protocol.
#
# This cannot use 'except BaseException as exc' (as in the
# async implementation) to maintain compatibility with
# Python 2, where old-style class exceptions are not caught
# by 'except BaseException'.
if sys.exc_info()[1] is value:
return False
raise
raise RuntimeError("generator didn't stop after throw()")