Reached PHPStan level 7!

Author: moufmouf

phpstan.neon

@@ -1,5 +1,5 @@
 parameters:
-    level: 6
+    level: 7
     inferPrivatePropertyTypeFromConstructor: true
     ignoreErrors:
         - "#Mouf\\\\MoufManager#"

src/Mouf/Database/MagicQuery.php

@@ -2,6 +2,7 @@
 
 namespace Mouf\Database;
 
+use Doctrine\DBAL\Connection;
 use Doctrine\DBAL\Platforms\MySqlPlatform;
 use function array_filter;
 use function array_keys;
@@ -175,7 +176,7 @@ public function parse($sql)
     public function toSql(NodeInterface $sqlNode, array $parameters = array(), bool $extrapolateParameters = true)
     {
         $platform = $this->connection ? $this->connection->getDatabasePlatform() : new MySqlPlatform();
-        return $sqlNode->toSql($parameters, $platform, 0, SqlRenderInterface::CONDITION_GUESS, $extrapolateParameters);
+        return (string) $sqlNode->toSql($parameters, $platform, 0, SqlRenderInterface::CONDITION_GUESS, $extrapolateParameters);
     }
 
     /**
@@ -286,15 +287,15 @@ private function getSchemaAnalyzer()
                 throw new MagicQueryMissingConnectionException('In order to use MagicJoin, you need to configure a DBAL connection.');
             }
 
-            $this->schemaAnalyzer = new SchemaAnalyzer($this->connection->getSchemaManager(), $this->cache, $this->getConnectionUniqueId());
+            $this->schemaAnalyzer = new SchemaAnalyzer($this->connection->getSchemaManager(), $this->cache, $this->getConnectionUniqueId($this->connection));
         }
 
         return $this->schemaAnalyzer;
     }
 
-    private function getConnectionUniqueId()
+    private function getConnectionUniqueId(Connection $connection)
     {
-        return hash('md4', $this->connection->getHost().'-'.$this->connection->getPort().'-'.$this->connection->getDatabase().'-'.$this->connection->getDriver()->getName());
+        return hash('md4', $connection->getHost().'-'.$connection->getPort().'-'.$connection->getDatabase().'-'.$connection->getDriver()->getName());
     }
 
     /**

src/Mouf/Database/QueryWriter/QueryResult.php

@@ -83,7 +83,7 @@ public function val()
     /**
      * Returns the SQL for this query-result (without pagination, but with parameters accounted for).
      *
-     * @return string
+     * @return string|null
      */
     public function toSql()
     {

src/SQLParser/Node/UnquotedParameter.php

@@ -55,7 +55,7 @@ class UnquotedParameter extends Parameter
     public function toSql(array $parameters, AbstractPlatform $platform, int $indent = 0, $conditionsMode = self::CONDITION_APPLY, bool $extrapolateParameters = true): ?string
     {
         $name = parent::toSql($parameters, $platform, $indent, $conditionsMode, $extrapolateParameters);
-        $name = str_replace("'", '', $name);
+        $name = str_replace("'", '', $name ?? '');
 
         return $name;
     }

src/SQLParser/Query/Select.php

@@ -377,15 +377,15 @@ public function toSql(array $parameters, AbstractPlatform $platform, int $indent
             throw new \Exception('There is no offset if no limit is provided. An error may have occurred during SQLParsing.');
         } elseif (!empty($this->limit)) {
             $limit = NodeFactory::toSql($this->limit, $platform, $parameters, ',', false, $indent + 2, $conditionsMode, $extrapolateParameters);
-            if ($limit === '' || ($extrapolateParameters && substr(trim($limit), 0, 1) == ':')) {
+            if ($limit === '' || ($extrapolateParameters && substr(trim($limit ?? ''), 0, 1) == ':')) {
                 $limit = null;
             }
             if (!$extrapolateParameters && $this->limit instanceof UnquotedParameter && !isset($parameters[$this->limit->getName()])) {
                 $limit = null;
             }
             if (!empty($this->offset)) {
                 $offset = NodeFactory::toSql($this->offset, $platform, $parameters, ',', false, $indent + 2, $conditionsMode, $extrapolateParameters);
-                if ($offset === '' || ($extrapolateParameters && substr(trim($offset), 0, 1) == ':')) {
+                if ($offset === '' || ($extrapolateParameters && substr(trim($offset ?? ''), 0, 1) == ':')) {
                     $offset = null;
                 }
                 if (!$extrapolateParameters && $this->offset instanceof UnquotedParameter && !isset($parameters[$this->offset->getName()])) {