diff --git a/src/Symfony/Component/PropertyInfo/Extractor/ReflectionExtractor.php b/src/Symfony/Component/PropertyInfo/Extractor/ReflectionExtractor.php
index be22f95855b9e..a6e3738e7cb0c 100644
--- a/src/Symfony/Component/PropertyInfo/Extractor/ReflectionExtractor.php
+++ b/src/Symfony/Component/PropertyInfo/Extractor/ReflectionExtractor.php
@@ -334,6 +334,11 @@ private function extractFromReflectionType(\ReflectionType $reflectionType, \Ref
$nullable = $reflectionType->allowsNull();
foreach (($reflectionType instanceof \ReflectionUnionType || $reflectionType instanceof \ReflectionIntersectionType) ? $reflectionType->getTypes() : [$reflectionType] as $type) {
+ if (!$type instanceof \ReflectionNamedType) {
+ // Nested composite types are not supported yet.
+ return [];
+ }
+
$phpTypeOrClass = $type->getName();
if ('null' === $phpTypeOrClass || 'mixed' === $phpTypeOrClass || 'never' === $phpTypeOrClass) {
continue;
diff --git a/src/Symfony/Component/PropertyInfo/Tests/Extractor/ReflectionExtractorTest.php b/src/Symfony/Component/PropertyInfo/Tests/Extractor/ReflectionExtractorTest.php
index 3f97527b720da..315171333d137 100644
--- a/src/Symfony/Component/PropertyInfo/Tests/Extractor/ReflectionExtractorTest.php
+++ b/src/Symfony/Component/PropertyInfo/Tests/Extractor/ReflectionExtractorTest.php
@@ -281,10 +281,14 @@ public function testExtractPhp82Type($property, array $type = null)
$this->assertEquals($type, $this->extractor->getTypes('Symfony\Component\PropertyInfo\Tests\Fixtures\Php82Dummy', $property, []));
}
- public function php82TypesProvider()
+ public function php82TypesProvider(): iterable
{
yield ['nil', null];
yield ['false', [new Type(Type::BUILTIN_TYPE_FALSE)]];
+
+ // Nesting intersection and union types is not supported yet,
+ // but we should make sure this kind of composite types does not crash the extractor.
+ yield ['someCollection', null];
}
/**
diff --git a/src/Symfony/Component/PropertyInfo/Tests/Fixtures/Php82Dummy.php b/src/Symfony/Component/PropertyInfo/Tests/Fixtures/Php82Dummy.php
index b830fabf8842a..784c868369390 100644
--- a/src/Symfony/Component/PropertyInfo/Tests/Fixtures/Php82Dummy.php
+++ b/src/Symfony/Component/PropertyInfo/Tests/Fixtures/Php82Dummy.php
@@ -16,4 +16,6 @@ class Php82Dummy
public null $nil = null;
public false $false = false;
+
+ public (\Traversable&\Countable)|null $someCollection = null;
}
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