Connection: the driver is created in the constructor

Author: dg

src/Database/Connection.php

@@ -59,6 +59,12 @@ public function __construct(
 if (($options['newDateTime'] ?? null) === false) {
 $this->rowNormalizer = fn($row, $resultSet) => Helpers::normalizeRow($row, $resultSet, DateTime::class);
 }
+
+$driver = explode(':', $dsn)[0];
+$class = empty($options['driverClass'])
+? (self::Drivers['pdo-' . $driver] ?? throw new \LogicException("Unknown PDO driver '$driver'."))
+: $options['driverClass'];
+$this->driver = new $class;
 }
 
 
@@ -77,13 +83,7 @@ public function connect(): void
 throw ConnectionException::from($e);
 }
 
-$driver = explode(':', $this->dsn)[0];
-$class = empty($this->options['driverClass'])
-? (self::Drivers['pdo-' . $driver] ?? throw new \LogicException("Unknown PDO driver '$driver'."))
-: $this->options['driverClass'];
-$this->driver = new $class;
 $this->engine = $this->driver->createEngine();
-$this->preprocessor = new SqlPreprocessor($this);
 $this->engine->initialize($this, $this->options);
 Arrays::invoke($this->onConnect, $this);
 }
@@ -286,6 +286,7 @@ public function queryArgs(string $sql, array $params): Result
 public function preprocess(string $sql, ...$params): array
 {
 $this->connect();
+$this->preprocessor ??= new SqlPreprocessor($this);
 return $params
 ? $this->preprocessor->process(func_get_args())
 : [$sql, []];