# Copyright 2020 Huawei Technologies Co., Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ============================================================================
"""
User debug operators registry.
User can define a python implementation of primitive operator and
register it with the registry, this mechanism applied for debugging currently.
"""
from __future__ import absolute_import
from __future__ import division
from mindspore.ops._register_for_op import Registry
from mindspore.ops.primitive import Primitive
class VmImplRegistry(Registry):
"""Registry class for registry functions for vm_impl on Primitive or string."""
def register(self, prim):
"""register the function."""
def deco(fn):
"""Decorate the function."""
if isinstance(prim, str):
self[prim] = fn
elif issubclass(prim, Primitive):
self[id(prim)] = fn
self[prim.__name__] = fn
return fn
return deco
vm_impl_registry = VmImplRegistry()
"""
Register the python primitive debug implementation function of a primitive operator.
Examples:
>>> @vm_impl_registry.register(P.Type)
... def vm_impl_dtype(self):
... def vm_impl(x):
... return type(x)
... return vm_impl
...
"""
[docs]def get_vm_impl_fn(prim):
"""
Gets the virtual implementation function by a primitive object or primitive name.
Args:
prim (Union[Primitive, str]): primitive object or name for operator register.
Note:
This mechanism applied for debugging currently.
Returns:
function, vm function
Examples:
>>> from mindspore.ops import vm_impl_registry, get_vm_impl_fn
...
>>> @vm_impl_registry.register("Type")
... def vm_impl_dtype(self):
... def vm_impl(x):
... return type(x)
... return vm_impl
...
>>> fn = get_vm_impl_fn("Type")
>>> out = fn(1.0)
>>> print(out)
<class 'float'>
"""
out = vm_impl_registry.get(prim, None)
if out:
return out(prim)
return None