CyclicReferenceStack.php in Loft Data Grids 7.2

File

vendor/phpoffice/phpexcel/Classes/PHPExcel/CalcEngine/CyclicReferenceStack.php

<?php

/**
 * PHPExcel
 *
 * Copyright (c) 2006 - 2014 PHPExcel
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * @category   PHPExcel
 * @package    PHPExcel_Calculation
 * @copyright  Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
 * @license	http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt	LGPL
 * @version	##VERSION##, ##DATE##
 */

/**
 * PHPExcel_CalcEngine_CyclicReferenceStack
 *
 * @category	PHPExcel_CalcEngine_CyclicReferenceStack
 * @package		PHPExcel_Calculation
 * @copyright	Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
 */
class PHPExcel_CalcEngine_CyclicReferenceStack {

  /**
   *  The call stack for calculated cells
   *
   *  @var mixed[]
   */
  private $_stack = array();

  /**
   * Return the number of entries on the stack
   *
   * @return  integer
   */
  public function count() {
    return count($this->_stack);
  }

  /**
   * Push a new entry onto the stack
   *
   * @param  mixed  $value
   */
  public function push($value) {
    $this->_stack[$value] = $value;
  }

  /**
   * Pop the last entry from the stack
   *
   * @return  mixed
   */
  public function pop() {
    return array_pop($this->_stack);
  }

  /**
   * Test to see if a specified entry exists on the stack
   *
   * @param  mixed  $value  The value to test
   */
  public function onStack($value) {
    return isset($this->_stack[$value]);
  }

  /**
   * Clear the stack
   */
  public function clear() {
    $this->_stack = array();
  }

  /**
   * Return an array of all entries on the stack
   *
   * @return  mixed[]
   */
  public function showStack() {
    return $this->_stack;
  }

}

Classes

Name	Description
PHPExcel_CalcEngine_CyclicReferenceStack	PHPExcel_CalcEngine_CyclicReferenceStack