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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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,
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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);
    }
}