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- # Copyright 2021 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.
- # ===========================================================================
- """generate json desc for slice"""
- from ._utils import Expander, ExpanderInfoValidator as VLD
-
-
- @VLD.check_attrs('begin', 'size')
- class Slice(Expander):
- """Slice expander"""
-
- def _expand(self, graph_builder):
- input_x = self.inputs[0]
- begin = self.attrs['begin']
- size = self.attrs['size']
- end = []
- strides = []
- for i in range(len(begin)):
- strides.append(1)
- end.append(begin[i] + size[i])
- output = graph_builder.tensor(size, input_x.dtype, input_x.data_format)
- graph_builder.op('StridedSlice', output, [input_x], attrs={'begin': begin, 'end': end, 'strides': strides})
-
- return output
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