make it so you can do static:class in a class constant

[prescriptionlifeline]

Description

<?php

class Sub {
    const TEST = static::class;
}

class A {
    const TEST = Sub::TEST;
}

class B {
    const TEST = Sub::TEST;
}

echo A::MAP;

Right now that produces a Fatal error: static::class cannot be used for compile-time class name resolution error but it'd be neat in some specific scenarios if it didn't.

[iluuu1994]

Hi @prescriptionlifeline. That doesn't really make sense. Constants live in a singular scope, i.e. the scope where there are declared in. static would infer that inheritance somehow influences the fetched value. Can you provide an example where it wouldn't actually just be equivalent to self?

[iluuu1994]

Looking at your example again, it seems like you are expecting static to behave somewhat like a macro. This is not how constants work. For example, how would this behave when accessing Sub::TEST outside of a class constant? When accessing a class constant, they are simply resolved in the context of their declaring class, and then the resulting value is the same across the entire application. Constants that evaluate to different values, depending on the context, would be very misleading, given the used terminology.

[github-actions]

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