/**
* Calculates the expression sum of the given node.
*
* @param \PDepend\Source\AST\ASTNode $node The currently visited node.
*
* @return string
* @since 0.9.12
* @todo I don't like this method implementation, it should be possible to
* implement this method with more visitor behavior for the boolean
* and logical expressions.
*/
public function sumComplexity($node)
{
$sum = '0';
if ($node instanceof ASTConditionalExpression) {
$sum = MathUtil::add($sum, $node->accept($this, 1));
} elseif ($node instanceof ASTBooleanAndExpression || $node instanceof ASTBooleanOrExpression || $node instanceof ASTLogicalAndExpression || $node instanceof ASTLogicalOrExpression || $node instanceof ASTLogicalXorExpression) {
$sum = MathUtil::add($sum, '1');
} else {
foreach ($node->getChildren() as $child) {
$expr = $this->sumComplexity($child);
$sum = MathUtil::add($sum, $expr);
}
}
return $sum;
}
