GrumPHP\Parser\Php\Visitor\ForbiddenFunctionCallsVisitor::leaveNode PHP Method

    public function leaveNode(Node $node)
    {
        if (!$node instanceof Node\Expr\FuncCall) {
            return;
        }
        $function = $node->name;
        if (!in_array($function, $this->blacklist)) {
            return;
        }
        $this->addError(sprintf('Found blacklisted "%s" function call', $function), $node->getLine(), ParseError::TYPE_ERROR);
    }