/*

 * 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

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 */

package jdk.nashorn.api.tree;

import jdk.nashorn.internal.ir.LiteralNode;

final class LiteralTreeImpl extends ExpressionTreeImpl implements LiteralTree {

    private final Object value;

    private final Kind kind;

    LiteralTreeImpl(final LiteralNode<?> node) {

        super(node);

        this.kind = literalKind(node);

        this.value = node.getValue();

    }

    @Override

    public Kind getKind() {

        return kind;

    }

    @Override

    public Object getValue() {

        return value;

    }

    private static Kind literalKind(final LiteralNode<?> node) {

        if (node.isBoolean()) {

            return Kind.BOOLEAN_LITERAL;

        } else if (node.isNumeric()) {

            return Kind.NUMBER_LITERAL;

        } else if (node.isString()) {

            return Kind.STRING_LITERAL;

        } else if (node.isNull()) {

            return Kind.NULL_LITERAL;

        } else {

            throw new AssertionError("should not reach here: " + node.getValue());

        }

    }

    @Override

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

        return visitor.visitLiteral(this, data);

    }

}