symfony · nicolas-grekas · Jul 15, 2021 · Jul 14, 2021 · derrabus · Jul 14, 2021
diff --git a/.github/patch-types.php b/.github/patch-types.php
@@ -41,6 +41,7 @@
        case false !== strpos($file, '/src/Symfony/Component/PropertyInfo/Tests/Fixtures/ParentDummy.php'):
        case false !== strpos($file, '/src/Symfony/Component/Serializer/Tests/Normalizer/Features/ObjectOuter.php'):
        case false !== strpos($file, '/src/Symfony/Component/VarDumper/Tests/Fixtures/NotLoadableClass.php'):
+        case false !== strpos($file, '/src/Symfony/Component/VarDumper/Tests/Fixtures/ReflectionIntersectionTypeFixture.php'):
            continue 2;
    }


diff --git a/src/Symfony/Component/VarDumper/Caster/ReflectionCaster.php b/src/Symfony/Component/VarDumper/Caster/ReflectionCaster.php
@@ -102,7 +102,7 @@ public static function castType(\ReflectionType $c, array $a, Stub $stub, $isNes
                $prefix.'allowsNull' => $c->allowsNull(),
                $prefix.'isBuiltin' => $c->isBuiltin(),
            ];
-        } elseif ($c instanceof \ReflectionUnionType) {
+        } elseif ($c instanceof \ReflectionUnionType || $c instanceof \ReflectionIntersectionType) {
            $a[$prefix.'allowsNull'] = $c->allowsNull();
            self::addMap($a, $c, [
                'types' => 'getTypes',

diff --git a/src/Symfony/Component/VarDumper/Tests/Caster/ReflectionCasterTest.php b/src/Symfony/Component/VarDumper/Tests/Caster/ReflectionCasterTest.php
@@ -17,6 +17,7 @@
 use Symfony\Component\VarDumper\Tests\Fixtures\ExtendsReflectionTypeFixture;
 use Symfony\Component\VarDumper\Tests\Fixtures\GeneratorDemo;
 use Symfony\Component\VarDumper\Tests\Fixtures\NotLoadableClass;
+use Symfony\Component\VarDumper\Tests\Fixtures\ReflectionIntersectionTypeFixture;
 use Symfony\Component\VarDumper\Tests\Fixtures\ReflectionNamedTypeFixture;
 use Symfony\Component\VarDumper\Tests\Fixtures\ReflectionUnionTypeFixture;

@@ -78,7 +79,7 @@ public function testClosureCaster()
    $b: & 123
  }
  file: "%sReflectionCasterTest.php"
-  line: "71 to 71"
+  line: "72 to 72"
 }
 EOTXT
            , $var
@@ -228,6 +229,26 @@ public function testReflectionParameterNullableUnion()
        );
    }

+    /**
+     * @requires PHP 8.1
+     */
+    public function testReflectionParameterIntersection()
+    {
+        $f = eval('return function (Traversable&Countable $a) {};');
+        $var = new \ReflectionParameter($f, 0);
+
+        $this->assertDumpMatchesFormat(
+            <<<'EOTXT'
+ReflectionParameter {
+  +name: "a"
+  position: 0
+  typeHint: "Traversable&Countable"
+}
+EOTXT
+            , $var
+        );
+    }
+
    /**
     * @requires PHP 7.4
     */
@@ -292,6 +313,34 @@ public function testReflectionUnionType()
        );
    }

+    /**
+     * @requires PHP 8.1
+     */
+    public function testReflectionIntersectionType()
+    {
+        $var = (new \ReflectionProperty(ReflectionIntersectionTypeFixture::class, 'a'))->getType();
+        $this->assertDumpMatchesFormat(
+            <<<'EOTXT'
+ReflectionIntersectionType {
+  allowsNull: false
+  types: array:2 [
+    0 => ReflectionNamedType {
+      name: "Traversable"
+      allowsNull: false
+      isBuiltin: false
+    }
+    1 => ReflectionNamedType {
+      name: "Countable"
+      allowsNull: false
+      isBuiltin: false
+    }
+  ]
+}
+EOTXT
+            , $var
+        );
+    }
+
    /**
     * @requires PHP 8
     */

diff --git a/src/Symfony/Component/VarDumper/Tests/Fixtures/ReflectionIntersectionTypeFixture.php b/src/Symfony/Component/VarDumper/Tests/Fixtures/ReflectionIntersectionTypeFixture.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace Symfony\Component\VarDumper\Tests\Fixtures;
+
+class ReflectionIntersectionTypeFixture
+{
+    public \Traversable&\Countable $a;
+}