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Closure Stylesheets is an extension to CSS that adds variables, functions, conditionals, and mixins to standard CSS. The tool also supports minification, linting, RTL flipping, and CSS class renaming.

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/*
 * Copyright 2008 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.css.compiler.ast;

import java.util.List;

/**
 * A node representing a (complex) conditional block.
 *
 */
public class CssConditionalBlockNode extends
    CssNodesListNode {

  /**
   * Constructor of a conditional block.
   */
  public CssConditionalBlockNode() {
    super(false /* isEnclosedWithBraces */);
  }

  /**
   * Constructor of a conditional block.
   *
   * @param comments
   */
  public CssConditionalBlockNode(List comments) {
    super(false /* isEnclosedWithBraces */, comments);
  }

  public CssConditionalBlockNode(CssConditionalBlockNode node) {
    super(node);
  }

  @Override
  public CssConditionalBlockNode deepCopy() {
    return new CssConditionalBlockNode(this);
  }

  // TODO(user): Make sure the block is valid (the first child must be an
  //     "if", the last child must be an "else" or an "elseif", all other
  //     children must be "elseif".
}