Symfony version(s) affected

6.2.8

Description

Since removing the TypeResolver 1.7 restriction in this commit, I'm getting serialisation errors when classes have docblocks that are not collections.

For example, if I use Psalms "value-of" docblock, the Serializer thinks this is an array of Type, but in reality it's just a string.

How to reproduce

final class StatusClass
{
    final public const STATUS_VALUES = ['accept', 'reject'];

    /**
     * @param value-of<self::STATUS_VALUES> $status
     */
    public function __construct(
        public readonly string $status,
    ) {
    }
}

Attempt to serialise data that looks a little like this and you'll receive an error that $status is an "array".

Possible Solution

1. Replace in user-land code @param with @psalm-param. Psalm still understands the type, but the serializer doesn't.

2. Re-add the composer restriction until this issue in TypeResolver is resolved: Generics are always considered as Collection phpDocumentor/TypeResolver#180

Additional Context

No response