Sstalle\php7cc\NodeVisitor\PasswordHashSaltVisitor::enterNode PHP Method

    public function enterNode(Node $node)
    {
        if (!$this->functionAnalyzer->isFunctionCallByStaticName($node, array('password_hash' => true)) || !isset($node->args[static::PASSWORD_HASH_OPTIONS_ARGUMENT_INDEX]) || !$node->args[static::PASSWORD_HASH_OPTIONS_ARGUMENT_INDEX]->value instanceof Node\Expr\Array_) {
            return;
        }
        /** @var Node\Expr\Array_ $passwordHashOptions */
        $passwordHashOptions = $node->args[static::PASSWORD_HASH_OPTIONS_ARGUMENT_INDEX]->value;
        /** @var $node Node\Expr\FuncCall */
        foreach ($passwordHashOptions->items as $option) {
            if ($option->key instanceof Node\Scalar\String_ && $option->key->value === 'salt') {
                $this->addContextMessage('Deprecated option "salt" passed to password_hash function', $node);
                break;
            }
        }
    }