On 21.11.2016 at 10:39, Niklas Keller wrote: > I'd like to announce a RFC to allow omitting the type declarations for > parameters in subclasses: > https://wiki.php.net/rfc/parameter-no-type-variance > > PHP doesn't currently allow variance for parameters as checking these for > compatibility isn't possible on compile time. > This limitation is caused by autoloading and doesn't allow widening the > accepted parameters. > > This RFC proposes to allow ommiting the type entirely in a subclass, as > dropping all parameter constraints is > always valid according to the LSP principle.
Have you considered that instead of simply omitting the type declaration, one would have to mark the omission explicitly, to still get a compile time warning in case of unintended omission? -- Christoph M. Becker -- PHP Internals - PHP Runtime Development Mailing List To unsubscribe, visit: http://www.php.net/unsub.php
