Hi Pierre, Having type-inference wouldn't transparently fix some of these issues ? > > Let's consider a method such as foo($array) which returns a bool or a > string, for example. And suddenly, the types get specified as foo(?array > $array): bool|string. >
PHP doesn't have such an advanced type inference capability: just consider dynamic calls, or regular function invocations where the return type information is not available. On the other hand, we could add return types implicitly, as it was proposed earlier, but I didn't really like this solution. For a little more details, have a look at my initial message: https://externals.io/message/112625#112625 Besides, I think it's better to document the return types explicitly as a declaration, since they usually help during implementation. Máté
