[JSR308] Creating new annotated types.
niko at alum.mit.edu
Fri Nov 14 09:04:36 EST 2008
> AnnotatedTypes.deepCopy() returns a deep clone of the annotated
> type. I don't know how it is different from AnnotatedTypeCloner.
Hmm, well, I can tell you at least one difference: I didn't know that
AnnotatedTypes.deepCopy() existed! :) That's good, I'm glad to see
it's there. As an aside, sometimes it can be hard to keep track of
all of the various classes full of helper methods that are floating
around (Elements, Types, ElementUtils, TypeUtils, InternalUtils,
In any case, the only difference between deepCopy() and
AnnotatedTypeCloner is that the latter allows the cloning process to
be customized in any way by a subclass. Whether that's necessary or
not is precisely what we've been discussing, I suppose.
> Besides preferring mutability, what are the motivations/rationale of
> wanting deep cloning. Your insight would help us documenting
> aliasing better.
I'm not sure what you mean by preferring mutability; I certainly
don't. In fact, I would probably prefer if AnnotatedTypeMirrors were
completely immutable, though the current mix of "mutable while being
created then immutable by convention thereafter" seems to work out
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