public function visit(NodeTraversal $t, \PHPParser_Node $node, \PHPParser_Node $parent = null)
{
if (!NodeUtil::isCallLike($node)) {
return;
}
if (null === ($function = $this->typeRegistry->getCalledFunctionByNode($node))) {
return;
}
foreach ($function->getParameters() as $param) {
if (!$param->isPassedByRef()) {
continue;
}
$index = $param->getIndex();
if (!isset($node->args[$index])) {
continue;
}
$arg = $node->args[$index];
if (!NodeUtil::canBePassedByRef($arg->value)) {
$this->phpFile->addComment($arg->getLine(), Comment::error('usage.non_referencable_arg', '``%argument%`` cannot be passed to ``%function_name%()`` as the parameter ``$%parameter_name%`` expects a reference.', array('argument' => self::$prettyPrinter->prettyPrintExpr($arg->value), 'function_name' => $function->getName(), 'parameter_name' => $param->getName())));
}
}
}
public function checkForeach(\PHPParser_Node_Stmt_Foreach $node)
{
if ($this->getSetting('foreach.value_as_reference') && $node->byRef && !NodeUtil::canBePassedByRef($node->expr)) {
$this->phpFile->addComment($node->expr->getLine(), Comment::error('usage_context.foreach_expr_no_reference', 'The expression ``%expr%`` cannot be used as a reference.', array('expr' => self::$prettyPrinter->prettyPrintExpr($node->expr))));
}
$this->checkTraversable($node);
}