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 import jdk.nashorn.internal.ir.BinaryNode; 29 30 final class CompoundAssignmentTreeImpl extends ExpressionTreeImpl implements CompoundAssignmentTree { 31 32 private final ExpressionTree var, expr; 33 private final Kind kind; 34 35 CompoundAssignmentTreeImpl(final BinaryNode node, final ExpressionTree left, final ExpressionTree right) { 36 super(node); 37 assert node.isAssignment() : "not an assignment node"; 38 this.var = left; 39 this.expr = right; 40 this.kind = getOperator(node.tokenType()); 41 assert kind != Tree.Kind.ASSIGNMENT : "compound assignment expected"; 42 } 43 44 @Override 45 public Kind getKind() { 46 return kind; 47 } 48 49 @Override 50 public ExpressionTree getVariable() { 51 return var; 52 } 53 54 @Override 55 public ExpressionTree getExpression() { 56 return expr; 57 } 58 59 @Override 60 public <R,D> R accept(TreeVisitor<R,D> visitor, D data) { 61 return visitor.visitCompoundAssignment(this, data); 62 } 63 }