feature #48478 [VarDumper] Add caster for WeakMap (nicolas-grekas)

This PR was merged into the 6.3 branch.

Discussion
----------

[VarDumper] Add caster for WeakMap

| Q             | A
| ------------- | ---
| Branch?       | 6.3
| Bug fix?      | no
| New feature?  | yes
| Deprecations? | no
| Tickets       | -
| License       | MIT
| Doc PR        | -

Commits
-------

bde17b7f51 [VarDumper] Add caster for WeakMap

Author: chalasr

CHANGELOG.md

@@ -1,6 +1,11 @@
 CHANGELOG
 =========
 
+6.3
+---
+
+ * Add caster for `WeakMap`
+
 6.2
 ---
 

Caster/SplCaster.php

@@ -184,10 +184,10 @@ public static function castObjectStorage(\SplObjectStorage $c, array $a, Stub $s
 
         $clone = clone $c;
         foreach ($clone as $obj) {
-            $storage[] = [
+            $storage[] = new EnumStub([
                 'object' => $obj,
                 'info' => $clone->getInfo(),
-             ];
+             ]);
         }
 
         $a += [
@@ -211,6 +211,24 @@ public static function castWeakReference(\WeakReference $c, array $a, Stub $stub
         return $a;
     }
 
+    public static function castWeakMap(\WeakMap $c, array $a, Stub $stub, bool $isNested)
+    {
+        $map = [];
+
+        foreach (clone $c as $obj => $data) {
+            $map[] = new EnumStub([
+                'object' => $obj,
+                'data' => $data,
+             ]);
+        }
+
+        $a += [
+            Caster::PREFIX_VIRTUAL.'map' => $map,
+        ];
+
+        return $a;
+    }
+
     private static function castSplArray(\ArrayObject|\ArrayIterator $c, array $a, Stub $stub, bool $isNested): array
     {
         $prefix = Caster::PREFIX_VIRTUAL;

Cloner/AbstractCloner.php

@@ -125,6 +125,7 @@ abstract class AbstractCloner implements ClonerInterface
         'SplObjectStorage' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castObjectStorage'],
         'SplPriorityQueue' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castHeap'],
         'OuterIterator' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castOuterIterator'],
+        'WeakMap' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castWeakMap'],
         'WeakReference' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castWeakReference'],
 
         'Redis' => ['Symfony\Component\VarDumper\Caster\RedisCaster', 'castRedis'],

Tests/Caster/SplCasterTest.php

@@ -213,6 +213,26 @@ public function testBadSplFileInfo()
 EOTXT;
         $this->assertDumpEquals($expected, $var);
     }
+
+    public function testWeakMap()
+    {
+        $var = new \WeakMap();
+        $obj = new \stdClass();
+        $var[$obj] = 123;
+
+        $expected = <<<EOTXT
+            WeakMap {
+              map: array:1 [
+                0 => {
+                  object: {}
+                  data: 123
+                }
+              ]
+            }
+            EOTXT;
+
+        $this->assertDumpEquals($expected, $var);
+    }
 }
 
 class MyArrayIterator extends \ArrayIterator