PhpMigration\Changes\v5dot4\IncompHashAlgo::leaveNode PHP Метод

    public function leaveNode($node)
    {
        /**
         * {Description}
         * The Salsa10 and Salsa20 hash algorithms have been removed.
         *
         * {Reference}
         * http://php.net/manual/en/migration54.incompatible.php
         */
        if ($node instanceof Expr\FuncCall && $this->funcTable->has($node->name)) {
            $affected = true;
            $certain = false;
            if (!isset($node->args[0])) {
                return;
            }
            $param = $node->args[0]->value;
            if ($param instanceof Scalar\String_) {
                $certain = $affected = strcasecmp($param->value, 'salsa10') === 0 || strcasecmp($param->value, 'salsa20') === 0;
            }
            if ($affected) {
                $this->addSpot('WARNING', $certain, 'Salsa10 and Salsa20 hash algorithms have been removed');
            }
        }
    }