...a DIP to make extern(!D) @system by default. It won't invalidate any work.

...code changed? And is it acceptable that @safe code can invalidate @trusted attributes like that?

...GC collection, for instance, is going to invalidate the cache.

Yeah, that is unnecessary. It...

...It might be a copy, or it might invalidate the original, depending on the type?

...won't break the invariant and thereby invalidate the @trusted function.


:-(  And I guess this...

...the implementation of clear, it does not invalidate any items in the array. It just...

...that way. They could just as easily invalidate the previous value (ending its lifetime) and...

...very easy for one little typo to invalidate vast amounts of code, which leads to...

...to the same memory object, one can invalidate the other. This is the principle pointed...

...optimizations in case the programmer's mutations invalidate said optimizations. The result is less optimal...