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181 lines (165 loc) · 5.02 KB
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"""Create UDFs of numpy functions supported by numba.
See list of numpy ufuncs supported by numpy here:
https://numba.readthedocs.io/en/stable/reference/numpysupported.html#math-operations
"""
import itertools as _itertools
from .. import _STANDARD_OPERATOR_NAMES
from .. import binary as _binary
from .. import config as _config
from .. import monoid as _monoid
from ..binary.numpy import _binary_names
from ..core import _supports_udfs
from ..monoid.numpy import _fmin_is_float, _monoid_identities
_delayed = {}
_semiring_names = {
f"{monoid_name}_{binary_name}"
for monoid_name, binary_name in _itertools.product(_monoid_identities, _binary_names)
}
# Remove incompatible combinations
# <non-int>_<int>
_semiring_names -= {
f"{monoid_name}_{binary_name}"
for monoid_name, binary_name in _itertools.product(
{"equal", "hypot", "logaddexp", "logaddexp2"},
{"gcd", "lcm", "left_shift", "right_shift"},
)
}
# <non-float>_<float>
_semiring_names -= {
f"{monoid_name}_{binary_name}"
for monoid_name, binary_name in _itertools.product(
{
"bitwise_and",
"bitwise_or",
"bitwise_xor",
"equal",
"gcd",
},
{
"arctan2",
"copysign",
"divide",
"float_power",
"hypot",
"ldexp",
"logaddexp2",
"logaddexp",
"nextafter",
"true_divide",
},
)
}
# <float>_<non-float>
_semiring_names -= {
f"{monoid_name}_{binary_name}"
for monoid_name, binary_name in _itertools.product(
{"hypot", "logaddexp", "logaddexp2"},
{"bitwise_and", "bitwise_or", "bitwise_xor"},
)
}
# <bool>_<non-bool>
_semiring_names -= {
f"{monoid_name}_{binary_name}"
for monoid_name, binary_name in _itertools.product(
{"equal"},
{"floor_divide", "fmod", "mod", "power", "remainder", "subtract"},
)
}
# <non-bool>_<bool>
_semiring_names -= {
f"{monoid_name}_{binary_name}"
for monoid_name, binary_name in _itertools.product(
{"gcd", "hypot", "logaddexp", "logaddexp2"},
{
"equal",
"greater",
"greater_equal",
"less",
"less_equal",
"not_equal",
},
)
}
if _fmin_is_float and not _config.get("mapnumpy"):
# See: https://github.com/numba/numba/issues/8478
# <non-float>_<float>
_semiring_names -= {
f"{monoid_name}_{binary_name}"
for monoid_name, binary_name in _itertools.product(
{
"bitwise_and",
"bitwise_or",
"bitwise_xor",
"equal",
"gcd",
},
{"fmax", "fmin"},
)
}
_semiring_names -= {
f"{monoid_name}_{binary_name}"
for monoid_name, binary_name in _itertools.product(
{"fmax", "fmin"},
{
# <non-float>
"bitwise_and",
"bitwise_or",
"bitwise_xor",
# <bool>
"equal",
"greater",
"greater_equal",
"less",
"less_equal",
"not_equal",
# <int>
"gcd",
"lcm",
"left_shift",
"right_shift",
},
)
}
_STANDARD_OPERATOR_NAMES.update(f"semiring.numpy.{name}" for name in _semiring_names)
__all__ = list(_semiring_names)
def __dir__():
if not _supports_udfs and not _config.get("mapnumpy"):
return globals().keys() # FLAKY COVERAGE
attrs = _delayed.keys() | _semiring_names
if not _supports_udfs:
attrs &= {
f"{monoid_name}_{binary_name}"
for monoid_name, binary_name in _itertools.product(
dir(_monoid.numpy), dir(_binary.numpy)
)
}
return attrs | globals().keys()
def __getattr__(name):
from ..core.operator import get_semiring
if name in _delayed:
func, kwargs = _delayed.pop(name)
if isinstance(kwargs["binaryop"], str):
from ..binary import from_string
kwargs["binaryop"] = from_string(kwargs["binaryop"])
if isinstance(kwargs["monoid"], str):
from ..monoid import from_string
kwargs["monoid"] = from_string(kwargs["monoid"])
rv = func(**kwargs)
globals()[name] = rv
return rv
if name not in _semiring_names:
raise AttributeError(f"module {__name__!r} has no attribute {name!r}")
words = name.split("_")
for i in range(1, len(words)): # pragma: no branch
monoid_name = "_".join(words[:i])
if not hasattr(_monoid.numpy, monoid_name):
continue
binary_name = "_".join(words[i:])
if hasattr(_binary.numpy, binary_name): # pragma: no branch
break
get_semiring(
getattr(_monoid.numpy, monoid_name),
getattr(_binary.numpy, binary_name),
name=f"numpy.{name}",
)
return globals()[name]