Enforce parameter and return value types in the codebase

UPGRADE.md

@@ -1,5 +1,11 @@
 # Upgrade to 3.0
 
+## BC BREAK: Changes in the `Doctrine\DBAL\Schema` API
+
+- Column precision no longer defaults to 10. The default value is NULL.
+- Asset names are no longer nullable. An empty asset name should be represented as an empty string.
+- `Doctrine\DBAL\Schema\AbstractSchemaManager::_getPortableTriggersList()` and `::_getPortableTriggerDefinition()` have been removed.
+
 ## BC BREAK: Changes in the `Doctrine\DBAL\Event` API
 
 - `SchemaAlterTableAddColumnEventArgs::addSql()` and the same method in other `SchemaEventArgs`-based classes no longer accept an array of SQL statements. They accept a variadic string.

lib/Doctrine/DBAL/Schema/AbstractAsset.php

@@ -25,7 +25,7 @@
 abstract class AbstractAsset
 {
     /** @var string */
-    protected $_name;
+    protected $_name = '';
 
     /**
      * Namespace of the asset. If none isset the default namespace is assumed.
@@ -138,7 +138,7 @@ public function getName() : string
             return $this->_namespace . '.' . $this->_name;
         }
 
-        return $this->_name ?? '';
+        return $this->_name;
     }
 
     /**
@@ -167,7 +167,7 @@ public function getQuotedName(AbstractPlatform $platform) : string
      */
     protected function _generateIdentifierName(array $columnNames, string $prefix = '', int $maxSize = 30) : string
     {
-        $hash = implode('', array_map(static function ($column) {
+        $hash = implode('', array_map(static function ($column) : string {
             return dechex(crc32($column));
         }, $columnNames));
 

lib/Doctrine/DBAL/Schema/AbstractSchemaManager.php

@@ -223,7 +223,7 @@ public function listTableNames() : array
      *
      * @return array<int, mixed>
      */
-    protected function filterAssetNames(array $assetNames)
+    protected function filterAssetNames(array $assetNames) : array
     {
         $filter = $this->_conn->getConfiguration()->getSchemaAssetsFilter();
         if (! $filter) {
@@ -605,35 +605,6 @@ protected function getPortableNamespaceDefinition(array $namespace) : string
         return array_shift($namespace);
     }
 
-    /**
-     * @param array<int, array<int, mixed>> $triggers
-     *
-     * @return array<int, string>
-     */
-    protected function _getPortableTriggersList(array $triggers)
-    {
-        $list = [];
-        foreach ($triggers as $value) {
-            $value = $this->_getPortableTriggerDefinition($value);
-
-            if (! $value) {
-                continue;
-            }
-
-            $list[] = $value;
-        }
-
-        return $list;
-    }
-
-    /**
-     * @param array<string|int, mixed> $trigger
-     */
-    protected function _getPortableTriggerDefinition(array $trigger) : string
-    {
-        return array_shift($trigger);
-    }
-
     /**
      * @param array<int, array<string, mixed>> $sequences
      *

lib/Doctrine/DBAL/Schema/Column.php

@@ -23,7 +23,7 @@ class Column extends AbstractAsset
     protected $_length;
 
     /** @var int|null */
-    protected $_precision = 10;
+    protected $_precision;
 
     /** @var int */
     protected $_scale = 0;
@@ -106,10 +106,6 @@ public function setLength(?int $length) : self
 
     public function setPrecision(?int $precision) : self
     {
-        if ($precision === null) {
-            $precision = 10; // defaults to 10 when no precision is given.
-        }
-
         $this->_precision = $precision;
 
         return $this;
@@ -195,7 +191,7 @@ public function getPrecision() : ?int
         return $this->_precision;
     }
 
-    public function getScale() : ?int
+    public function getScale() : int
     {
         return $this->_scale;
     }

lib/Doctrine/DBAL/Schema/ForeignKeyConstraint.php

@@ -59,14 +59,12 @@ class ForeignKeyConstraint extends AbstractAsset implements Constraint
      * @param array<int, string>   $localColumnNames   Names of the referencing table columns.
      * @param Table|string         $foreignTableName   Referenced table.
      * @param array<int, string>   $foreignColumnNames Names of the referenced table columns.
-     * @param string|null          $name               Name of the foreign key constraint.
+     * @param string               $name               Name of the foreign key constraint.
      * @param array<string, mixed> $options            Options associated with the foreign key constraint.
      */
-    public function __construct(array $localColumnNames, $foreignTableName, array $foreignColumnNames, $name = null, array $options = [])
+    public function __construct(array $localColumnNames, $foreignTableName, array $foreignColumnNames, string $name = '', array $options = [])
     {
-        if ($name !== null) {
-            $this->_setName($name);
-        }
+        $this->_setName($name);
 
         $this->_localColumnNames = $this->createIdentifierMap($localColumnNames);
 

lib/Doctrine/DBAL/Schema/PostgreSqlSchemaManager.php

@@ -92,7 +92,7 @@ public function determineExistingSchemaSearchPaths() : void
         $names = $this->getSchemaNames();
         $paths = $this->getSchemaSearchPaths();
 
-        $this->existingSchemaPaths = array_filter($paths, static function ($v) use ($names) {
+        $this->existingSchemaPaths = array_filter($paths, static function ($v) use ($names) : bool {
             return in_array($v, $names);
         });
     }
@@ -161,14 +161,6 @@ protected function _getPortableTableForeignKeyDefinition(array $tableForeignKey)
         );
     }
 
-    /**
-     * {@inheritdoc}
-     */
-    protected function _getPortableTriggerDefinition(array $trigger) : string
-    {
-        return $trigger['trigger_name'];
-    }
-
     /**
      * {@inheritdoc}
      */

lib/Doctrine/DBAL/Schema/SQLAnywhereSchemaManager.php

@@ -45,13 +45,13 @@ public function dropDatabase(string $database) : void
         parent::dropDatabase($database);
     }
 
-    public function startDatabase(string $database)
+    public function startDatabase(string $database) : void
     {
         assert($this->_platform instanceof SQLAnywherePlatform);
         $this->_execSql($this->_platform->getStartDatabaseSQL($database));
     }
 
-    public function stopDatabase(string $database)
+    public function stopDatabase(string $database) : void
     {
         assert($this->_platform instanceof SQLAnywherePlatform);
         $this->_execSql($this->_platform->getStopDatabaseSQL($database));

lib/Doctrine/DBAL/Schema/Schema.php

@@ -408,8 +408,6 @@ public function visit(Visitor $visitor) : void
 
     /**
      * Cloning a Schema triggers a deep clone of all related assets.
-     *
-     * @return void
      */
     public function __clone()
     {

lib/Doctrine/DBAL/Schema/SchemaDiff.php

@@ -120,7 +120,7 @@ protected function _toSql(AbstractPlatform $platform, bool $saveMode = false) :
             }
         }
 
-        if ($platform->supportsSequences() === true) {
+        if ($platform->supportsSequences()) {
             foreach ($this->changedSequences as $sequence) {
                 $sql[] = $platform->getAlterSequenceSQL($sequence);
             }

lib/Doctrine/DBAL/Schema/Table.php

@@ -460,7 +460,7 @@ public function getColumns() : array
 
         $colNames = array_unique(array_merge($pkCols, $fkCols, array_keys($columns)));
 
-        uksort($columns, static function ($a, $b) use ($colNames) {
+        uksort($columns, static function ($a, $b) use ($colNames) : bool {
             return array_search($a, $colNames) >= array_search($b, $colNames);
         });
 
@@ -578,7 +578,7 @@ public function getUniqueConstraints() : array
      *
      * @return array<string, ForeignKeyConstraint>
      */
-    public function getForeignKeys()
+    public function getForeignKeys() : array
     {
         return $this->_fkConstraints;
     }
@@ -623,8 +623,6 @@ public function visit(Visitor $visitor) : void
 
     /**
      * Clone of a Table triggers a deep clone of all affected assets.
-     *
-     * @return void
      */
     public function __clone()
     {

lib/Doctrine/DBAL/Schema/Visitor/SchemaDiffVisitor.php

@@ -17,25 +17,25 @@ interface SchemaDiffVisitor
     /**
      * Visit an orphaned foreign key whose table was deleted.
      */
-    public function visitOrphanedForeignKey(ForeignKeyConstraint $foreignKey);
+    public function visitOrphanedForeignKey(ForeignKeyConstraint $foreignKey) : void;
 
     /**
      * Visit a sequence that has changed.
      */
-    public function visitChangedSequence(Sequence $sequence);
+    public function visitChangedSequence(Sequence $sequence) : void;
 
     /**
      * Visit a sequence that has been removed.
      */
-    public function visitRemovedSequence(Sequence $sequence);
+    public function visitRemovedSequence(Sequence $sequence) : void;
 
-    public function visitNewSequence(Sequence $sequence);
+    public function visitNewSequence(Sequence $sequence) : void;
 
-    public function visitNewTable(Table $table);
+    public function visitNewTable(Table $table) : void;
 
-    public function visitNewTableForeignKey(Table $table, ForeignKeyConstraint $foreignKey);
+    public function visitNewTableForeignKey(Table $table, ForeignKeyConstraint $foreignKey) : void;
 
-    public function visitRemovedTable(Table $table);
+    public function visitRemovedTable(Table $table) : void;
 
-    public function visitChangedTable(TableDiff $tableDiff);
+    public function visitChangedTable(TableDiff $tableDiff) : void;
 }

phpcs.xml.dist

@@ -20,14 +20,6 @@
         <exclude name="SlevomatCodingStandard.Classes.DisallowLateStaticBindingForConstants.DisallowedLateStaticBindingForConstant"/>
     </rule>
 
-    <rule ref="SlevomatCodingStandard.TypeHints.TypeHintDeclaration.MissingParameterTypeHint">
-        <exclude-pattern>*/lib/*</exclude-pattern>
-    </rule>
-
-    <rule ref="SlevomatCodingStandard.TypeHints.TypeHintDeclaration.MissingReturnTypeHint">
-        <exclude-pattern>*/lib/*</exclude-pattern>
-    </rule>
-
     <rule ref="PSR1.Classes.ClassDeclaration.MultipleClasses">
         <exclude-pattern>*/tests/*</exclude-pattern>
     </rule>

tests/Doctrine/Tests/DBAL/Driver/AbstractOracleDriver/EasyConnectStringTest.php

@@ -22,7 +22,7 @@ public function testFromConnectionParameters(array $params, string $expected) :
     }
 
     /**
-     * @return mixed[]
+     * @return iterable<string, array<int, mixed>>
      */
     public static function connectionParametersProvider() : iterable
     {

tests/Doctrine/Tests/DBAL/Functional/ConnectionTest.php

@@ -251,17 +251,6 @@ public function testTransactionalReturnValue() : void
         self::assertEquals(42, $res);
     }
 
-    /**
-     * Tests that the quote function accepts DBAL and PDO types.
-     */
-    public function testQuote() : void
-    {
-        self::assertEquals(
-            $this->connection->quote('foo'),
-            $this->connection->quote('foo')
-        );
-    }
-
     public function testPingDoesTriggersConnect() : void
     {
         $this->connection->close();

tests/Doctrine/Tests/DBAL/Functional/DataAccessTest.php

@@ -512,11 +512,9 @@ public function testNativeArrayListSupport() : void
     }
 
     /**
-     * @param string|false $char
-     *
      * @dataProvider getTrimExpressionData
      */
-    public function testTrimExpression(string $value, int $position, $char, string $expectedResult) : void
+    public function testTrimExpression(string $value, int $position, ?string $char, string $expectedResult) : void
     {
         $sql = 'SELECT ' .
             $this->connection->getDatabasePlatform()->getTrimExpression($value, $position, $char) . ' AS trimmed ' .

tests/Doctrine/Tests/DBAL/Functional/Schema/SchemaManagerFunctionalTestCase.php

@@ -293,54 +293,54 @@ public function testListTableColumns() : void
 
         self::assertArrayHasKey('test', $columns);
         self::assertEquals(1, array_search('test', $columnsKeys));
-        self::assertEquals('test', strtolower($columns['test']->getname()));
-        self::assertInstanceOf(StringType::class, $columns['test']->gettype());
-        self::assertEquals(255, $columns['test']->getlength());
-        self::assertEquals(false, $columns['test']->getfixed());
-        self::assertEquals(false, $columns['test']->getnotnull());
-        self::assertEquals('expected default', $columns['test']->getdefault());
+        self::assertEquals('test', strtolower($columns['test']->getName()));
+        self::assertInstanceOf(StringType::class, $columns['test']->getType());
+        self::assertEquals(255, $columns['test']->getLength());
+        self::assertEquals(false, $columns['test']->getFixed());
+        self::assertEquals(false, $columns['test']->getNotnull());
+        self::assertEquals('expected default', $columns['test']->getDefault());
         self::assertIsArray($columns['test']->getPlatformOptions());
 
-        self::assertEquals('foo', strtolower($columns['foo']->getname()));
+        self::assertEquals('foo', strtolower($columns['foo']->getName()));
         self::assertEquals(2, array_search('foo', $columnsKeys));
-        self::assertInstanceOf(TextType::class, $columns['foo']->gettype());
-        self::assertEquals(false, $columns['foo']->getunsigned());
-        self::assertEquals(false, $columns['foo']->getfixed());
-        self::assertEquals(true, $columns['foo']->getnotnull());
-        self::assertEquals(null, $columns['foo']->getdefault());
+        self::assertInstanceOf(TextType::class, $columns['foo']->getType());
+        self::assertEquals(false, $columns['foo']->getUnsigned());
+        self::assertEquals(false, $columns['foo']->getFixed());
+        self::assertEquals(true, $columns['foo']->getNotnull());
+        self::assertEquals(null, $columns['foo']->getDefault());
         self::assertIsArray($columns['foo']->getPlatformOptions());
 
-        self::assertEquals('bar', strtolower($columns['bar']->getname()));
+        self::assertEquals('bar', strtolower($columns['bar']->getName()));
         self::assertEquals(3, array_search('bar', $columnsKeys));
-        self::assertInstanceOf(DecimalType::class, $columns['bar']->gettype());
-        self::assertEquals(null, $columns['bar']->getlength());
-        self::assertEquals(10, $columns['bar']->getprecision());
-        self::assertEquals(4, $columns['bar']->getscale());
-        self::assertEquals(false, $columns['bar']->getunsigned());
-        self::assertEquals(false, $columns['bar']->getfixed());
-        self::assertEquals(false, $columns['bar']->getnotnull());
-        self::assertEquals(null, $columns['bar']->getdefault());
+        self::assertInstanceOf(DecimalType::class, $columns['bar']->getType());
+        self::assertEquals(null, $columns['bar']->getLength());
+        self::assertEquals(10, $columns['bar']->getPrecision());
+        self::assertEquals(4, $columns['bar']->getScale());
+        self::assertEquals(false, $columns['bar']->getUnsigned());
+        self::assertEquals(false, $columns['bar']->getFixed());
+        self::assertEquals(false, $columns['bar']->getNotnull());
+        self::assertEquals(null, $columns['bar']->getDefault());
         self::assertIsArray($columns['bar']->getPlatformOptions());
 
-        self::assertEquals('baz1', strtolower($columns['baz1']->getname()));
+        self::assertEquals('baz1', strtolower($columns['baz1']->getName()));
         self::assertEquals(4, array_search('baz1', $columnsKeys));
-        self::assertInstanceOf(DateTimeType::class, $columns['baz1']->gettype());
-        self::assertEquals(true, $columns['baz1']->getnotnull());
-        self::assertEquals(null, $columns['baz1']->getdefault());
+        self::assertInstanceOf(DateTimeType::class, $columns['baz1']->getType());
+        self::assertEquals(true, $columns['baz1']->getNotnull());
+        self::assertEquals(null, $columns['baz1']->getDefault());
         self::assertIsArray($columns['baz1']->getPlatformOptions());
 
-        self::assertEquals('baz2', strtolower($columns['baz2']->getname()));
+        self::assertEquals('baz2', strtolower($columns['baz2']->getName()));
         self::assertEquals(5, array_search('baz2', $columnsKeys));
-        self::assertContains($columns['baz2']->gettype()->getName(), ['time', 'date', 'datetime']);
-        self::assertEquals(true, $columns['baz2']->getnotnull());
-        self::assertEquals(null, $columns['baz2']->getdefault());
+        self::assertContains($columns['baz2']->getType()->getName(), ['time', 'date', 'datetime']);
+        self::assertEquals(true, $columns['baz2']->getNotnull());
+        self::assertEquals(null, $columns['baz2']->getDefault());
         self::assertIsArray($columns['baz2']->getPlatformOptions());
 
-        self::assertEquals('baz3', strtolower($columns['baz3']->getname()));
+        self::assertEquals('baz3', strtolower($columns['baz3']->getName()));
         self::assertEquals(6, array_search('baz3', $columnsKeys));
-        self::assertContains($columns['baz3']->gettype()->getName(), ['time', 'date', 'datetime']);
-        self::assertEquals(true, $columns['baz3']->getnotnull());
-        self::assertEquals(null, $columns['baz3']->getdefault());
+        self::assertContains($columns['baz3']->getType()->getName(), ['time', 'date', 'datetime']);
+        self::assertEquals(true, $columns['baz3']->getNotnull());
+        self::assertEquals(null, $columns['baz3']->getDefault());
         self::assertIsArray($columns['baz3']->getPlatformOptions());
     }