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68 lines
1.7 KiB
Python
68 lines
1.7 KiB
Python
# Copyright 2018 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# https://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from __future__ import absolute_import
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from __future__ import division
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from __future__ import print_function
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from .core import lattice_join, Primitive
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from .tree_util import register_pytree_node
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from .util import safe_map
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map = safe_map
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jaxval_adders = {}
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def add_jaxvals(x, y):
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return add_jaxvals_p.bind(x, y)
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add_jaxvals_p = Primitive('add_any')
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@add_jaxvals_p.def_impl
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def add_impl(xs, ys):
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# assert type(xs) == type(ys), (xs, ys)
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return jaxval_adders[type(xs)](xs, ys)
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@add_jaxvals_p.def_abstract_eval
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def add_abstract(xs, ys):
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return lattice_join(xs, ys)
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def zeros_like_impl_jaxtuple(xs):
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return JaxTuple(map(zeros_like_impl, xs))
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jaxval_zeros_likers = {}
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def zeros_like_aval(aval):
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return aval_zeros_likers[type(aval)](aval)
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aval_zeros_likers = {}
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def zeros_like_jaxval(val):
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return zeros_like_p.bind(val)
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zeros_like_p = Primitive('zeros_like')
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@zeros_like_p.def_impl
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def zeros_like_impl(example):
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return jaxval_zeros_likers[type(example)](example)
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zeros_like_p.def_abstract_eval(lambda x: x)
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class Zero(object):
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def __repr__(self):
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return "Zero"
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zero = Zero()
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register_pytree_node(Zero, lambda z: ((), None), lambda _, xs: zero)
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