[VarDumper] fix PHP 8 support

Author: nicolas-grekas

Caster/Caster.php

@@ -46,7 +46,7 @@ class Caster
      *
      * @return array The array-cast of the object, with prefixed dynamic properties
      */
-    public static function castObject($obj, $class, $hasDebugInfo = false)
+    public static function castObject($obj, $class, $hasDebugInfo = false, $debugClass = null)
     {
         if ($class instanceof \ReflectionClass) {
             @trigger_error(sprintf('Passing a ReflectionClass to "%s()" is deprecated since Symfony 3.3 and will be unsupported in 4.0. Pass the class name as string instead.', __METHOD__), E_USER_DEPRECATED);
@@ -71,6 +71,17 @@ public static function castObject($obj, $class, $hasDebugInfo = false)
 
         if ($a) {
             static $publicProperties = [];
+            if (null === $debugClass) {
+                if (\PHP_VERSION_ID >= 80000) {
+                    $debugClass = get_debug_type($obj);
+                } else {
+                    $debugClass = $class;
+
+                    if (isset($debugClass[15]) && "\0" === $debugClass[15]) {
+                        $debugClass = (get_parent_class($debugClass) ?: key(class_implements($debugClass)) ?: 'class').'@anonymous';
+                    }
+                }
+            }
 
             $i = 0;
             $prefixedKeys = [];
@@ -84,8 +95,8 @@ public static function castObject($obj, $class, $hasDebugInfo = false)
                     if (!isset($publicProperties[$class][$k])) {
                         $prefixedKeys[$i] = self::PREFIX_DYNAMIC.$k;
                     }
-                } elseif (isset($k[16]) && "\0" === $k[16] && 0 === strpos($k, "\0class@anonymous\0")) {
-                    $prefixedKeys[$i] = "\0".get_parent_class($class).'@anonymous'.strrchr($k, "\0");
+                } elseif ($debugClass !== $class && 1 === strpos($k, $class)) {
+                    $prefixedKeys[$i] = "\0".$debugClass.strrchr($k, "\0");
                 }
                 ++$i;
             }
@@ -101,6 +112,9 @@ public static function castObject($obj, $class, $hasDebugInfo = false)
         if ($hasDebugInfo && \is_array($debugInfo)) {
             foreach ($debugInfo as $k => $v) {
                 if (!isset($k[0]) || "\0" !== $k[0]) {
+                    if (\array_key_exists(self::PREFIX_DYNAMIC.$k, $a)) {
+                        continue;
+                    }
                     $k = self::PREFIX_VIRTUAL.$k;
                 }
 

Caster/SplCaster.php

@@ -160,15 +160,6 @@ public static function castFileObject(\SplFileObject $c, array $a, Stub $stub, $
         return $a;
     }
 
-    public static function castFixedArray(\SplFixedArray $c, array $a, Stub $stub, $isNested)
-    {
-        $a += [
-            Caster::PREFIX_VIRTUAL.'storage' => $c->toArray(),
-        ];
-
-        return $a;
-    }
-
     public static function castObjectStorage(\SplObjectStorage $c, array $a, Stub $stub, $isNested)
     {
         $storage = [];
@@ -200,22 +191,23 @@ public static function castOuterIterator(\OuterIterator $c, array $a, Stub $stub
     private static function castSplArray($c, array $a, Stub $stub, $isNested)
     {
         $prefix = Caster::PREFIX_VIRTUAL;
-        $class = $stub->class;
         $flags = $c->getFlags();
 
         if (!($flags & \ArrayObject::STD_PROP_LIST)) {
             $c->setFlags(\ArrayObject::STD_PROP_LIST);
-            $a = Caster::castObject($c, $class);
+            $a = Caster::castObject($c, \get_class($c), method_exists($c, '__debugInfo'), $stub->class);
             $c->setFlags($flags);
         }
+        if (\PHP_VERSION_ID < 70400) {
+            $a[$prefix.'storage'] = $c->getArrayCopy();
+        }
         $a += [
             $prefix.'flag::STD_PROP_LIST' => (bool) ($flags & \ArrayObject::STD_PROP_LIST),
             $prefix.'flag::ARRAY_AS_PROPS' => (bool) ($flags & \ArrayObject::ARRAY_AS_PROPS),
         ];
         if ($c instanceof \ArrayObject) {
             $a[$prefix.'iteratorClass'] = new ClassStub($c->getIteratorClass());
         }
-        $a[$prefix.'storage'] = $c->getArrayCopy();
 
         return $a;
     }

Cloner/AbstractCloner.php

@@ -102,7 +102,6 @@ abstract class AbstractCloner implements ClonerInterface
         'SplDoublyLinkedList' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castDoublyLinkedList'],
         'SplFileInfo' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castFileInfo'],
         'SplFileObject' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castFileObject'],
-        'SplFixedArray' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castFixedArray'],
         'SplHeap' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castHeap'],
         'SplObjectStorage' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castObjectStorage'],
         'SplPriorityQueue' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castHeap'],
@@ -266,8 +265,8 @@ protected function castObject(Stub $stub, $isNested)
         $obj = $stub->value;
         $class = $stub->class;
 
-        if (isset($class[15]) && "\0" === $class[15] && 0 === strpos($class, "class@anonymous\x00")) {
-            $stub->class = get_parent_class($class).'@anonymous';
+        if ((\PHP_VERSION_ID >= 80000 || (isset($class[15]) && "\0" === $class[15])) && false !== strpos($class, "@anonymous\0")) {
+            $stub->class = \PHP_VERSION_ID < 80000 ? (get_parent_class($class) ?: key(class_implements($class)) ?: 'class').'@anonymous' : get_debug_type($obj);
         }
         if (isset($this->classInfo[$class])) {
             list($i, $parents, $hasDebugInfo) = $this->classInfo[$class];
@@ -289,7 +288,7 @@ protected function castObject(Stub $stub, $isNested)
             $this->classInfo[$class] = [$i, $parents, $hasDebugInfo];
         }
 
-        $a = Caster::castObject($obj, $class, $hasDebugInfo);
+        $a = Caster::castObject($obj, $class, $hasDebugInfo, $stub->class);
 
         try {
             while ($i--) {

Tests/Caster/CasterTest.php

@@ -171,7 +171,7 @@ public function testAnonymousClass()
 
         $this->assertDumpMatchesFormat(
             <<<'EOTXT'
-@anonymous {
+class@anonymous {
   -foo: "foo"
 }
 EOTXT

Tests/Caster/PdoCasterTest.php

@@ -30,6 +30,7 @@ public function testCastPdo()
     {
         $pdo = new \PDO('sqlite::memory:');
         $pdo->setAttribute(\PDO::ATTR_STATEMENT_CLASS, ['PDOStatement', [$pdo]]);
+        $pdo->setAttribute(\PDO::ATTR_ERRMODE, \PDO::ERRMODE_EXCEPTION);
 
         $cast = PdoCaster::castPdo($pdo, [], new Stub(), false);
 
@@ -45,7 +46,7 @@ public function testCastPdo()
   "\x00~\x00inTransaction" => false
   "\x00~\x00attributes" => array:9 [
     "CASE" => NATURAL
-    "ERRMODE" => SILENT
+    "ERRMODE" => EXCEPTION
     "PERSISTENT" => false
     "DRIVER_NAME" => "sqlite"
     "ORACLE_NULLS" => NATURAL

Tests/Caster/ReflectionCasterTest.php

@@ -49,8 +49,8 @@ public function testReflectionCaster()
 %A]
   methods: array:%d [
 %A
-    "export" => ReflectionMethod {
-      +name: "export"
+    "__construct" => ReflectionMethod {
+      +name: "__construct"
       +class: "ReflectionClass"
 %A    parameters: {
         $%s: ReflectionParameter {

Tests/Caster/SplCasterTest.php

@@ -175,14 +175,17 @@ public function testCastArrayObject()
         $expected = <<<EOTXT
 ArrayObject {
   +"foo": 234
+  -storage: array:1 [
+    0 => 123
+  ]
   flag::STD_PROP_LIST: false
   flag::ARRAY_AS_PROPS: false
   iteratorClass: "ArrayIterator"
-  storage: array:1 [
-    0 => 123
-  ]
 }
 EOTXT;
+        if (\PHP_VERSION_ID < 70400) {
+            $expected = str_replace('-storage:', 'storage:', $expected);
+        }
         $this->assertDumpEquals($expected, $var);
     }
 
@@ -196,13 +199,16 @@ public function testArrayIterator()
         $expected = <<<EOTXT
 Symfony\Component\VarDumper\Tests\Caster\MyArrayIterator {
   -foo: 123
-  flag::STD_PROP_LIST: false
-  flag::ARRAY_AS_PROPS: false
-  storage: array:1 [
+  -storage: array:1 [
     0 => 234
   ]
+  flag::STD_PROP_LIST: false
+  flag::ARRAY_AS_PROPS: false
 }
 EOTXT;
+        if (\PHP_VERSION_ID < 70400) {
+            $expected = str_replace('-storage:', 'storage:', $expected);
+        }
         $this->assertDumpEquals($expected, $var);
     }
 

Tests/Dumper/CliDumperTest.php

@@ -203,6 +203,7 @@ public function provideDumpWithCommaFlagTests()
 
     /**
      * @requires extension xml
+     * @requires PHP < 8.0
      */
     public function testXmlResource()
     {