Re: [RFC] [Discussion] Readonly Classes

Hello Máté, pon., 22 lis 2021 o 17:14 Máté Kocsis <kocsismate90@gmail.com> napisał(a): > Hi Internals, > > I'd like to propose adding support for readonly classes: > https://wiki.php.net/rfc/readonly_classes > > The implementation heavily builds on the semantics of the already accepted > readonly properties RFC (https://wiki.php.net/rfc/readonly_properties_v2), > basically the only thing I had to implement in the PR are the following: > - Any declared property of a readonly class is implicitly treated as > readonly > - Creation of dynamic properties is forbidden > Personally, I'm not convinced at all about this idea. The read-only property for me is a preliminary step before introducing full-blown property/field accessors. Instead of making the whole class readable I'd rather see sort of data classes similar to record classes in other languages where you get pass-by-value, built-in object initializer and class composition over inheritance like Go structs. But regardless of what I'd love to see this feature, I see no justified use case. Therefore I ask if there are any real use cases of it? and if there are other languages with similar functionality? Cheers, Michał Marcin Brzuchalski