org.nd4j.linalg.api.ops.impl.controlflow.compat.While Maven / Gradle / Ivy
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* * This program and the accompanying materials are made available under the
* * terms of the Apache License, Version 2.0 which is available at
* * https://www.apache.org/licenses/LICENSE-2.0.
* *
* * See the NOTICE file distributed with this work for additional
* * information regarding copyright ownership.
* * 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.
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* * SPDX-License-Identifier: Apache-2.0
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package org.nd4j.linalg.api.ops.impl.controlflow.compat;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.nd4j.autodiff.samediff.SDVariable;
import org.nd4j.autodiff.samediff.SameDiff;
import org.nd4j.common.base.Preconditions;
import org.nd4j.linalg.api.buffer.DataType;
import org.nd4j.linalg.api.ops.Op.Type;
import org.tensorflow.framework.AttrValue;
import org.tensorflow.framework.GraphDef;
import org.tensorflow.framework.NodeDef;
import java.util.List;
import java.util.Map;
@Data
@NoArgsConstructor
public class While extends BaseCompatOp {
protected boolean isConstant;
public While(SameDiff sameDiff, SDVariable[] inputs){
super(sameDiff, inputs);
}
public While(SameDiff sameDiff, String frameName, SDVariable input){
super(sameDiff, new SDVariable[]{input});
this.frameName = frameName;
isConstant = input.isConstant();
}
public While(SameDiff sameDiff, String frameName, SDVariable input, boolean isConstant){
super(sameDiff, new SDVariable[]{input});
this.frameName = frameName;
this.isConstant = isConstant;
}
/**
* WARNING: do not change without changing serialization methods
* See {@link org.nd4j.autodiff.samediff.serde.FlatBuffersMapper#getOpNum(String, Type)}
* and {@link org.nd4j.imports.converters.DifferentialFunctionClassHolder#customOpClassForHashAndName(long, String)}
*/
public static final String OP_NAME = "While";
public static final int OP_NUM = 101;
@Override
public String opName() {
return OP_NAME;
}
@Override
public SDVariable[] outputVariables() {
return super.outputVariables();
}
@Override
public String tensorflowName() {
return "While";
}
@Override
public Type opType() {
return Type.LOGIC;
}
@Override
public void initFromTensorFlow(NodeDef nodeDef, SameDiff initWith, Map attributesForNode, GraphDef graph) {
super.initFromTensorFlow(nodeDef, initWith, attributesForNode, graph);
isConstant = attributesForNode.get("is_constant").getB();
}
@Override
public int getNumOutputs(){
return 1;
}
@Override
public List calculateOutputDataTypes(List inputDataTypes) {
Preconditions.checkState(inputDataTypes != null && inputDataTypes.size() == 1, "Expected 1 input datatype for %s, got %s", getClass(), inputDataTypes);
return inputDataTypes;
}
}