PHP, on a Whim #3: Who Is Allowed to Implement This? carthage.software/en/blog/arti...
PHP, on a Whim #3: Who Is Allowed to Implement This? · Seifeddine Gmati
Whim lets classes and interfaces list the types allowed to inherit from them using a `for` clause. This post looks at what sealed families actually restrict, why direct children matter, how Whim enfor...
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