/*
* Encog(tm) Core v3.4 - Java Version
* http://www.heatonresearch.com/encog/
* https://github.com/encog/encog-java-core
* Copyright 2008-2016 Heaton Research, Inc.
*
* 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.
*
* For more information on Heaton Research copyrights, licenses
* and trademarks visit:
* http://www.heatonresearch.com/copyright
*/
package org.encog.ml.prg.extension;
/**
* The node type. This mostly determines how opcodes are parsed and rendered.
* Node types do not generally affect execution.
*/
public enum NodeType {
/**
* A left associated operator. Operators are actually functions, however,
* setting to this type does affect how the opcode is rendered.
* http://en.wikipedia.org/wiki/Operator_associativity
*/
OperatorLeft,
/**
* A right associated operator. Operators are actually functions, however,
* setting to this type does affect how the opcode is rendered.
* http://en.wikipedia.org/wiki/Operator_associativity
*/
OperatorRight,
/**
* A leaf, or terminal node. No children.
*/
Leaf,
/**
* A function.
*/
Function,
/**
* An unary operator.
*/
Unary,
/**
* Unknown.
*/
None;
/**
* @return True, if this is an operator.
*/
public boolean isOperator() {
return this == OperatorLeft || this == OperatorRight || this == Unary;
}
}