Viewing file:  ArrayArgumentProcessor.php (6.38 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
<?php
namespace PhpOffice\PhpSpreadsheet\Calculation\Engine;
use PhpOffice\PhpSpreadsheet\Calculation\Functions;
class ArrayArgumentProcessor
{
/**
* @var ArrayArgumentHelper
*/
private static $arrayArgumentHelper;
/**
* @param mixed ...$arguments
*/
public static function processArguments(
ArrayArgumentHelper $arrayArgumentHelper,
callable $method,
...$arguments
): array {
self::$arrayArgumentHelper = $arrayArgumentHelper;
if (self::$arrayArgumentHelper->hasArrayArgument() === false) {
return [$method(...$arguments)];
}
if (self::$arrayArgumentHelper->arrayArguments() === 1) {
$nthArgument = self::$arrayArgumentHelper->getFirstArrayArgumentNumber();
return self::evaluateNthArgumentAsArray($method, $nthArgument, ...$arguments);
}
$singleRowVectorIndex = self::$arrayArgumentHelper->getSingleRowVector();
$singleColumnVectorIndex = self::$arrayArgumentHelper->getSingleColumnVector();
if ($singleRowVectorIndex !== null && $singleColumnVectorIndex !== null) {
// Basic logic for a single row vector and a single column vector
return self::evaluateVectorPair($method, $singleRowVectorIndex, $singleColumnVectorIndex, ...$arguments);
}
$matrixPair = self::$arrayArgumentHelper->getMatrixPair();
if ($matrixPair !== []) {
if (
(self::$arrayArgumentHelper->isVector($matrixPair[0]) === true &&
self::$arrayArgumentHelper->isVector($matrixPair[1]) === false) ||
(self::$arrayArgumentHelper->isVector($matrixPair[0]) === false &&
self::$arrayArgumentHelper->isVector($matrixPair[1]) === true)
) {
// Logic for a matrix and a vector (row or column)
return self::evaluateVectorMatrixPair($method, $matrixPair, ...$arguments);
}
// Logic for matrix/matrix, column vector/column vector or row vector/row vector
return self::evaluateMatrixPair($method, $matrixPair, ...$arguments);
}
// Still need to work out the logic for more than two array arguments,
// For the moment, we're throwing an Exception when we initialise the ArrayArgumentHelper
return ['#VALUE!'];
}
/**
* @param mixed ...$arguments
*/
private static function evaluateVectorMatrixPair(callable $method, array $matrixIndexes, ...$arguments): array
{
$matrix2 = array_pop($matrixIndexes);
/** @var array $matrixValues2 */
$matrixValues2 = $arguments[$matrix2];
$matrix1 = array_pop($matrixIndexes);
/** @var array $matrixValues1 */
$matrixValues1 = $arguments[$matrix1];
$rows = min(array_map([self::$arrayArgumentHelper, 'rowCount'], [$matrix1, $matrix2]));
$columns = min(array_map([self::$arrayArgumentHelper, 'columnCount'], [$matrix1, $matrix2]));
if ($rows === 1) {
$rows = max(array_map([self::$arrayArgumentHelper, 'rowCount'], [$matrix1, $matrix2]));
}
if ($columns === 1) {
$columns = max(array_map([self::$arrayArgumentHelper, 'columnCount'], [$matrix1, $matrix2]));
}
$result = [];
for ($rowIndex = 0; $rowIndex < $rows; ++$rowIndex) {
for ($columnIndex = 0; $columnIndex < $columns; ++$columnIndex) {
$rowIndex1 = self::$arrayArgumentHelper->isRowVector($matrix1) ? 0 : $rowIndex;
$columnIndex1 = self::$arrayArgumentHelper->isColumnVector($matrix1) ? 0 : $columnIndex;
$value1 = $matrixValues1[$rowIndex1][$columnIndex1];
$rowIndex2 = self::$arrayArgumentHelper->isRowVector($matrix2) ? 0 : $rowIndex;
$columnIndex2 = self::$arrayArgumentHelper->isColumnVector($matrix2) ? 0 : $columnIndex;
$value2 = $matrixValues2[$rowIndex2][$columnIndex2];
$arguments[$matrix1] = $value1;
$arguments[$matrix2] = $value2;
$result[$rowIndex][$columnIndex] = $method(...$arguments);
}
}
return $result;
}
/**
* @param mixed ...$arguments
*/
private static function evaluateMatrixPair(callable $method, array $matrixIndexes, ...$arguments): array
{
$matrix2 = array_pop($matrixIndexes);
/** @var array $matrixValues2 */
$matrixValues2 = $arguments[$matrix2];
$matrix1 = array_pop($matrixIndexes);
/** @var array $matrixValues1 */
$matrixValues1 = $arguments[$matrix1];
$result = [];
foreach ($matrixValues1 as $rowIndex => $row) {
foreach ($row as $columnIndex => $value1) {
if (isset($matrixValues2[$rowIndex][$columnIndex]) === false) {
continue;
}
$value2 = $matrixValues2[$rowIndex][$columnIndex];
$arguments[$matrix1] = $value1;
$arguments[$matrix2] = $value2;
$result[$rowIndex][$columnIndex] = $method(...$arguments);
}
}
return $result;
}
/**
* @param mixed ...$arguments
*/
private static function evaluateVectorPair(callable $method, int $rowIndex, int $columnIndex, ...$arguments): array
{
$rowVector = Functions::flattenArray($arguments[$rowIndex]);
$columnVector = Functions::flattenArray($arguments[$columnIndex]);
$result = [];
foreach ($columnVector as $column) {
$rowResults = [];
foreach ($rowVector as $row) {
$arguments[$rowIndex] = $row;
$arguments[$columnIndex] = $column;
$rowResults[] = $method(...$arguments);
}
$result[] = $rowResults;
}
return $result;
}
/**
* Note, offset is from 1 (for the first argument) rather than from 0.
*
* @param mixed ...$arguments
*/
private static function evaluateNthArgumentAsArray(callable $method, int $nthArgument, ...$arguments): array
{
$values = array_slice($arguments, $nthArgument - 1, 1);
/** @var array $values */
$values = array_pop($values);
$result = [];
foreach ($values as $value) {
$arguments[$nthArgument - 1] = $value;
$result[] = $method(...$arguments);
}
return $result;
}
}
|