1 /*
   2  * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package jdk.nashorn.api.tree;
  27 
  28 /**
  29  * A tree node for a binary expression.
  30  * Use {@link #getKind getKind} to determine the kind of operator.
  31  *
  32  * For example:
  33  * <pre>
  34  *   <em>leftOperand</em> <em>operator</em> <em>rightOperand</em>
  35  * </pre>
  36  *
  37  * @since 1.9
  38  */
  39 @jdk.Exported
  40 public interface BinaryTree extends ExpressionTree {
  41     /**
  42      * Returns left hand side (LHS) of this binary expression.
  43      *
  44      * @return left hand side (LHS) of this binary expression
  45      */
  46     ExpressionTree getLeftOperand();
  47 
  48     /**
  49      * Returns right hand side (RHS) of this binary expression.
  50      *
  51      * @return right hand side (RHS) of this binary expression
  52      */
  53     ExpressionTree getRightOperand();
  54 }