Import simplified version of Common\Util\Debug for var dumping purposes

lib/Doctrine/DBAL/Tools/Console/Command/RunSqlCommand.php

@@ -19,14 +19,13 @@
 
 namespace Doctrine\DBAL\Tools\Console\Command;
 
+use Doctrine\DBAL\Tools\Dumper;
 use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\Input\InputArgument;
 use Symfony\Component\Console\Input\InputInterface;
 use Symfony\Component\Console\Output\OutputInterface;
 use Symfony\Component\Console\Input\InputOption;
 use function is_numeric;
-use function ob_get_clean;
-use function ob_start;
 use function stripos;
 
 /**
@@ -84,10 +83,6 @@ EOT
             $resultSet = $conn->executeUpdate($sql);
         }
 
-        ob_start();
-        \Doctrine\Common\Util\Debug::dump($resultSet, (int) $depth);
-        $message = ob_get_clean();
-
-        $output->write($message);
+        $output->write(Dumper::dump($resultSet, (int) $depth));
     }
 }

lib/Doctrine/DBAL/Tools/Dumper.php

+<?php
+
+namespace Doctrine\DBAL\Tools;
+
+use ArrayIterator;
+use ArrayObject;
+use DateTimeInterface;
+use Doctrine\Common\Collections\Collection;
+use Doctrine\Common\Persistence\Proxy;
+use stdClass;
+use function array_keys;
+use function class_exists;
+use function count;
+use function end;
+use function explode;
+use function extension_loaded;
+use function get_class;
+use function html_entity_decode;
+use function ini_get;
+use function ini_set;
+use function is_array;
+use function is_object;
+use function ob_get_clean;
+use function ob_start;
+use function strip_tags;
+use function strrpos;
+use function substr;
+use function var_dump;
+
+/**
+ * Static class used to dump the variable to be used on output.
+ * Simplified port of Util\Debug from doctrine/common.
+ *
+ * @internal
+ */
+final class Dumper
+{
+    /**
+     * Private constructor (prevents instantiation).
+     */
+    private function __construct()
+    {
+    }
+
+    /**
+     * Returns a dump of the public, protected and private properties of $var.
+     *
+     * @link https://xdebug.org/
+     *
+     * @param mixed $var      The variable to dump.
+     * @param int   $maxDepth The maximum nesting level for object properties.
+     */
+    public static function dump($var, int $maxDepth = 2) : string
+    {
+        $html = ini_get('html_errors');
+
+        if ($html !== true) {
+            ini_set('html_errors', true);
+        }
+
+        if (extension_loaded('xdebug')) {
+            ini_set('xdebug.var_display_max_depth', $maxDepth);
+        }
+
+        $var = self::export($var, $maxDepth);
+
+        ob_start();
+        var_dump($var);
+
+        try {
+            return strip_tags(html_entity_decode(ob_get_clean()));
+        } finally {
+            ini_set('html_errors', $html);
+        }
+    }
+
+    /**
+     * @param mixed $var
+     *
+     * @return mixed
+     */
+    public static function export($var, int $maxDepth)
+    {
+        $return = null;
+        $isObj  = is_object($var);
+
+        if ($var instanceof Collection) {
+            $var = $var->toArray();
+        }
+
+        if ($maxDepth === 0) {
+            return is_object($var) ? get_class($var)
+                : (is_array($var) ? 'Array(' . count($var) . ')' : $var);
+        }
+
+        if (is_array($var)) {
+            $return = [];
+
+            foreach ($var as $k => $v) {
+                $return[$k] = self::export($v, $maxDepth - 1);
+            }
+
+            return $return;
+        }
+
+        if (! $isObj) {
+            return $var;
+        }
+
+        $return = new stdClass();
+        if ($var instanceof DateTimeInterface) {
+            $return->__CLASS__ = get_class($var);
+            $return->date      = $var->format('c');
+            $return->timezone  = $var->getTimezone()->getName();
+
+            return $return;
+        }
+
+        $return->__CLASS__ = self::getClass($var);
+
+        if ($var instanceof Proxy) {
+            $return->__IS_PROXY__          = true;
+            $return->__PROXY_INITIALIZED__ = $var->__isInitialized();
+        }
+
+        if ($var instanceof ArrayObject || $var instanceof ArrayIterator) {
+            $return->__STORAGE__ = self::export($var->getArrayCopy(), $maxDepth - 1);
+        }
+
+        return self::fillReturnWithClassAttributes($var, $return, $maxDepth);
+    }
+
+    /**
+     * Fill the $return variable with class attributes
+     * Based on obj2array function from {@see https://secure.php.net/manual/en/function.get-object-vars.php#47075}
+     *
+     * @param object $var
+     *
+     * @return mixed
+     */
+    private static function fillReturnWithClassAttributes($var, stdClass $return, int $maxDepth)
+    {
+        $clone = (array) $var;
+
+        foreach (array_keys($clone) as $key) {
+            $aux  = explode("\0", $key);
+            $name = end($aux);
+            if ($aux[0] === '') {
+                $name .= ':' . ($aux[1] === '*' ? 'protected' : $aux[1] . ':private');
+            }
+            $return->$name = self::export($clone[$key], $maxDepth - 1);
+            ;
+        }
+
+        return $return;
+    }
+
+    /**
+     * @param object $object
+     */
+    private static function getClass($object) : string
+    {
+        $class = get_class($object);
+
+        if (! class_exists(Proxy::class)) {
+            return $class;
+        }
+
+        $pos = strrpos($class, '\\' . Proxy::MARKER . '\\');
+
+        if ($pos === false) {
+            return $class;
+        }
+
+        return substr($class, $pos + Proxy::MARKER_LENGTH + 2);
+    }
+}

phpcs.xml.dist

@@ -31,4 +31,8 @@
     <rule ref="Generic.NamingConventions.UpperCaseConstantName.ClassConstantNotUpperCase">
         <exclude-pattern>lib/Doctrine/DBAL/Events.php</exclude-pattern>
     </rule>
+
+    <rule ref="SlevomatCodingStandard.Classes.UnusedPrivateElements.UnusedProperty">
+        <exclude-pattern>tests/Doctrine/Tests/DBAL/Tools/TestAsset/*</exclude-pattern>
+    </rule>
 </ruleset>

tests/Doctrine/Tests/DBAL/Tools/DumperTest.php

+<?php
+
+namespace Doctrine\Tests\DBAL\Tools;
+
+use ArrayIterator;
+use ArrayObject;
+use DateTime;
+use DateTimeImmutable;
+use DateTimeZone;
+use Doctrine\DBAL\Tools\Dumper;
+use Doctrine\Tests\DbalTestCase;
+use function print_r;
+use function strpos;
+use function substr;
+
+class DumperTest extends DbalTestCase
+{
+    public function testExportObject()
+    {
+        $obj      = new \stdClass();
+        $obj->foo = 'bar';
+        $obj->bar = 1234;
+
+        $var = Dumper::export($obj, 2);
+        self::assertEquals('stdClass', $var->__CLASS__);
+    }
+
+    public function testExportObjectWithReference()
+    {
+        $foo = 'bar';
+        $bar = ['foo' => & $foo];
+        $baz = (object) $bar;
+
+        $var      = Dumper::export($baz, 2);
+        $baz->foo = 'tab';
+
+        self::assertEquals('bar', $var->foo);
+        self::assertEquals('tab', $bar['foo']);
+    }
+
+    public function testExportArray()
+    {
+        $array              = ['a' => 'b', 'b' => ['c', 'd' => ['e', 'f']]];
+        $var                = Dumper::export($array, 2);
+        $expected           = $array;
+        $expected['b']['d'] = 'Array(2)';
+        self::assertEquals($expected, $var);
+    }
+
+    public function testExportDateTime()
+    {
+        $obj = new DateTime('2010-10-10 10:10:10', new DateTimeZone('UTC'));
+
+        $var = Dumper::export($obj, 2);
+        self::assertEquals('DateTime', $var->__CLASS__);
+        self::assertEquals('2010-10-10T10:10:10+00:00', $var->date);
+    }
+
+    public function testExportDateTimeImmutable()
+    {
+        $obj = new DateTimeImmutable('2010-10-10 10:10:10', new DateTimeZone('UTC'));
+
+        $var = Dumper::export($obj, 2);
+        self::assertEquals('DateTimeImmutable', $var->__CLASS__);
+        self::assertEquals('2010-10-10T10:10:10+00:00', $var->date);
+    }
+
+    public function testExportDateTimeZone()
+    {
+        $obj = new DateTimeImmutable('2010-10-10 12:34:56', new DateTimeZone('Europe/Rome'));
+
+        $var = Dumper::export($obj, 2);
+        self::assertEquals('DateTimeImmutable', $var->__CLASS__);
+        self::assertEquals('2010-10-10T12:34:56+02:00', $var->date);
+    }
+
+    public function testExportArrayTraversable()
+    {
+        $obj = new ArrayObject(['foobar']);
+
+        $var = Dumper::export($obj, 2);
+        self::assertContains('foobar', $var->__STORAGE__);
+
+        $it = new ArrayIterator(['foobar']);
+
+        $var = Dumper::export($it, 5);
+        self::assertContains('foobar', $var->__STORAGE__);
+    }
+
+    /**
+     * @param string[] $expected
+     *
+     * @dataProvider provideAttributesCases
+     */
+    public function testExportParentAttributes(TestAsset\ParentClass $class, array $expected)
+    {
+        $print_r_class    = print_r($class, true);
+        $print_r_expected = print_r($expected, true);
+
+        $print_r_class    = substr($print_r_class, strpos($print_r_class, '('));
+        $print_r_expected = substr($print_r_expected, strpos($print_r_expected, '('));
+
+        self::assertSame($print_r_class, $print_r_expected);
+
+        $var = Dumper::export($class, 3);
+        $var = (array) $var;
+        unset($var['__CLASS__']);
+
+        self::assertSame($expected, $var);
+    }
+
+    public function provideAttributesCases()
+    {
+        return [
+            'different-attributes' => [
+                new TestAsset\ChildClass(),
+                [
+                    'childPublicAttribute' => 4,
+                    'childProtectedAttribute:protected' => 5,
+                    'childPrivateAttribute:Doctrine\Tests\DBAL\Tools\TestAsset\ChildClass:private' => 6,
+                    'parentPublicAttribute' => 1,
+                    'parentProtectedAttribute:protected' => 2,
+                    'parentPrivateAttribute:Doctrine\Tests\DBAL\Tools\TestAsset\ParentClass:private' => 3,
+                ],
+            ],
+            'same-attributes' => [
+                new TestAsset\ChildWithSameAttributesClass(),
+                [
+                    'parentPublicAttribute' => 4,
+                    'parentProtectedAttribute:protected' => 5,
+                    'parentPrivateAttribute:Doctrine\Tests\DBAL\Tools\TestAsset\ChildWithSameAttributesClass:private' => 6,
+                    'parentPrivateAttribute:Doctrine\Tests\DBAL\Tools\TestAsset\ParentClass:private' => 3,
+                ],
+            ],
+        ];
+    }
+}

tests/Doctrine/Tests/DBAL/Tools/TestAsset/ChildClass.php

+<?php
+
+namespace Doctrine\Tests\DBAL\Tools\TestAsset;
+
+final class ChildClass extends ParentClass
+{
+    /** @var int */
+    public $childPublicAttribute = 4;
+
+    /** @var int */
+    protected $childProtectedAttribute = 5;
+
+    /** @var int */
+    private $childPrivateAttribute = 6;
+}

tests/Doctrine/Tests/DBAL/Tools/TestAsset/ChildWithSameAttributesClass.php

+<?php
+
+namespace Doctrine\Tests\DBAL\Tools\TestAsset;
+
+final class ChildWithSameAttributesClass extends ParentClass
+{
+    /** @var int */
+    public $parentPublicAttribute = 4;
+
+    /** @var int */
+    protected $parentProtectedAttribute = 5;
+
+    /** @var int */
+    private $parentPrivateAttribute = 6;
+}

tests/Doctrine/Tests/DBAL/Tools/TestAsset/ParentClass.php

+<?php
+
+namespace Doctrine\Tests\DBAL\Tools\TestAsset;
+
+abstract class ParentClass
+{
+    /** @var int */
+    public $parentPublicAttribute = 1;
+
+    /** @var int */
+    protected $parentProtectedAttribute = 2;
+
+    /** @var int */
+    private $parentPrivateAttribute = 3;
+}