/*

 * Copyright (c) 2010, 2013, 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.internal.ir;

import jdk.nashorn.internal.ir.visitor.NodeVisitor;

import jdk.nashorn.internal.runtime.Source;

/**

 * IR representation for {@code with} statements.

 */

public class WithNode extends Node {

   /** This expression. */

    private Node expression;

    /** Statements. */

    private Block body;

    /**

     * Constructor

     *

     * @param source     the source

     * @param token      token

     * @param finish     finish

     * @param expression expression in parenthesis

     * @param body       with node body

     */

    public WithNode(final Source source, final long token, final int finish, final Node expression, final Block body) {

        super(source, token, finish);

        this.expression = expression;

        this.body       = body;

    }

    private WithNode(final WithNode withNode, final CopyState cs) {

        super(withNode);

        expression = cs.existingOrCopy(withNode.expression);

        body       = (Block)cs.existingOrCopy(withNode.body);

    }

    @Override

    protected Node copy(final CopyState cs) {

        return new WithNode(this, cs);

    }

    /**

     * Assist in IR navigation.

     *

     * @param visitor IR navigating visitor.

     */

    @Override

    public Node accept(final NodeVisitor visitor) {

        if (visitor.enter(this) != null) {

            expression = expression.accept(visitor);

            body = (Block)body.accept(visitor);

            return visitor.leave(this);

        }

        return this;

    }

    @Override

    public void toString(final StringBuilder sb) {

        sb.append("with (");

        expression.toString(sb);

        sb.append(')');

    }

    /**

     * Get the body of this WithNode

     * @return the body

     */

    public Block getBody() {

        return body;

    }

    /**

     * Reset the body of this with node

     * @param body new body

     */

    public void setBody(final Block body) {

        this.body = body;

    }

    /**

     * Get the expression of this WithNode

     * @return the expression

     */

    public Node getExpression() {

        return expression;

    }

    /**

     * Reset the expression of this with node

     * @param expression new expression

     */

    public void setExpression(final Node expression) {

        this.expression = expression;

    }

}