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Minor performance tweaks to calculation engine

This commit is contained in:
Mark Baker 2013-06-16 16:24:34 +01:00
parent a0859fd7d0
commit 333c811c5e
1 changed files with 9 additions and 14 deletions
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23
Classes/PHPExcel/Calculation.php
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@ -3486,6 +3486,13 @@ class PHPExcel_Calculation {
private function _validateBinaryOperand($cellID, &$operand, &$stack) {
if (is_array($operand)) {
if ((count($operand, COUNT_RECURSIVE) - count($operand)) == 1) {
do {
$operand = array_pop($operand);
} while (is_array($operand));
}
}
// Numbers, matrices and booleans can pass straight through, as they're already valid
if (is_string($operand)) {
// We only need special validations for the operand if it is a string
@ -3591,25 +3598,13 @@ class PHPExcel_Calculation {
if (!$this->_validateBinaryOperand($cellID,$operand1,$stack)) return FALSE;
if (!$this->_validateBinaryOperand($cellID,$operand2,$stack)) return FALSE;
$executeMatrixOperation = FALSE;
// If either of the operands is a matrix, we need to treat them both as matrices
// (converting the other operand to a matrix if need be); then perform the required
// matrix operation
if ((is_array($operand1)) || (is_array($operand2))) {
// Ensure that both operands are arrays/matrices
$executeMatrixOperation = TRUE;
$mSize = array();
list($mSize[],$mSize[],$mSize[],$mSize[]) = self::_checkMatrixOperands($operand1,$operand2,2);
// Ensure that both operands are arrays/matrices of the same size
self::_checkMatrixOperands($operand1, $operand2, 2);
// But if they're both single cell matrices, then we can treat them as simple values
if (array_sum($mSize) == 4) {
$executeMatrixOperation = FALSE;
$operand1 = $operand1[0][0];
$operand2 = $operand2[0][0];
}
}
if ($executeMatrixOperation) {
try {
// Convert operand 1 from a PHP array to a matrix
$matrix = new PHPExcel_Shared_JAMA_Matrix($operand1);