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[Server] Handler type uses bare Closure, hard to decorate RegistryInterface under strict PHPStan #468
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Sure, PR welcome :)
- changed the title
[-]Handler type uses bare Closure, hard to decorate RegistryInterface under strict PHPStan[/-][+][Server] Handler type uses bare Closure, hard to decorate RegistryInterface under strict PHPStan[/+]on Aug 22, 2026 can you share your implementation and the error you're getting here?
The
Handlerphpstan-type onElementReferenceuses a bare\Closure. ImplementingRegistryInterfacewithcheckMissingCallableSignatureenabled is then impossible: bareClosurefails the signature rule, and adding one breaks contravariance against the interface.\Closure(mixed...): mixedon the alias fixes both. Happy to send the one-liner.