/*

 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package jdk.nashorn.api.tree;

import jdk.nashorn.internal.ir.BinaryNode;

final class CompoundAssignmentTreeImpl extends ExpressionTreeImpl implements CompoundAssignmentTree {

    private final ExpressionTree var, expr;

    private final Kind kind;

    CompoundAssignmentTreeImpl(final BinaryNode node, final ExpressionTree left, final ExpressionTree right) {

        super(node);

        assert node.isAssignment() : "not an assignment node";

        this.var = left;

        this.expr = right;

        this.kind = getOperator(node.tokenType());

        assert kind != Tree.Kind.ASSIGNMENT : "compound assignment expected";

    }

    @Override

    public Kind getKind() {

        return kind;

    }

    @Override

    public ExpressionTree getVariable() {

        return var;

    }

    @Override

    public ExpressionTree getExpression() {

        return expr;

    }

    @Override

    public <R,D> R accept(final TreeVisitor<R,D> visitor, final D data) {

        return visitor.visitCompoundAssignment(this, data);

    }

}