def stage_objectmode_backend(self):
"""
Lowering for object mode
"""
lowerfn = self.backend_object_mode
self._backend(lowerfn, objectmode=True)
# Warn, deprecated behaviour, code compiled in objmode without
# force_pyobject indicates fallback from nopython mode
if not self.flags.force_pyobject:
# first warn about object mode and yes/no to lifted loops
if len(self.lifted) > 0:
warn_msg = ('Function "%s" was compiled in object mode without'
' forceobj=True, but has lifted loops.' %
(self.func_id.func_name,))
else:
warn_msg = ('Function "%s" was compiled in object mode without'
' forceobj=True.' % (self.func_id.func_name,))
warnings.warn(errors.NumbaWarning(warn_msg,
self.func_ir.loc))
url = ("http://numba.pydata.org/numba-doc/latest/reference/"
"deprecation.html#deprecation-of-object-mode-fall-"
"back-behaviour-when-using-jit")
msg = ("\nFall-back from the nopython compilation path to the "
"object mode compilation path has been detected, this is "
"deprecated behaviour.\n\nFor more information visit %s" %
url)
warnings.warn(errors.NumbaDeprecationWarning(msg, self.func_ir.loc))
if self.flags.release_gil:
warn_msg = ("Code running in object mode won't allow parallel"
" execution despite nogil=True.")
warnings.warn_explicit(warn_msg, errors.NumbaWarning,
self.func_id.filename,
self.func_id.firstlineno)
def get_numbapro_envvar(envvar, default=None):
# use vanilla get here so as to use `None` as a signal for not-set
value = os.environ.get(envvar)
if value is not None:
url = ("http://numba.pydata.org/numba-doc/latest/cuda/overview.html",
"#cudatoolkit-lookup")
msg = ("\nEnvironment variables with the 'NUMBAPRO' prefix are "
"deprecated and consequently ignored, found use of %s=%s.\n\n"
"For more information about alternatives visit: %s" %
(envvar, value, url))
warnings.warn(errors.NumbaWarning(msg))
return default
def test_warnings_fixer(self):
# For some context, see #4083
wfix = errors.WarningsFixer(errors.NumbaWarning)
with wfix.catch_warnings('foo', 10):
warnings.warn(errors.NumbaWarning('same'))
warnings.warn(errors.NumbaDeprecationWarning('same'))
with warnings.catch_warnings(record=True) as w:
warnings.simplefilter('always')
wfix.flush()
self.assertEqual(len(w), 2)
# the order of these will be backwards to the above, the
# WarningsFixer flush method sorts with a key based on str
# comparison
self.assertEqual(w[0].category, NumbaDeprecationWarning)
self.assertEqual(w[1].category, NumbaWarning)
self.assertIn('same', str(w[0].message))
self.assertIn('same', str(w[1].message))