Hi Internals
Since the addition of union types, it has become a little more cumbersome to
determine whether a given parameter type accepts specific input. Personally
I've been reusing this code blob in several places because of it:
```
/** @var \ReflectionNamedType[] $types */
$types = match ($type::class) {
ReflectionUnionType::class => $type->getTypes(),
ReflectionNamedType::class => [$type],
};
foreach ($types as $type) {
if (! is_subclass_of($type->getName(), ShouldBeStored::class)) {
continue;
}
// …
}
```
I wonder whether we would discuss adding a method on ReflectionType that
accepts any given input, and tells you whether that input is valid for that
type or not. I was thinking about `ReflectionType::accepts(string|object
$input): bool` but we could discuss another name. With it, the above example
could be refactored like so:
```
if (! $type->accepts(ShouldBeStored::class)) {
return;
}
// …
```
I believe this method should accept both class names and objects to be
consistent with the existing reflection API. It would also work with
intersection types, if they are to be added some day.
What do you think?
Kind regards
Brent
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