I'm spending a lot of time considering how the future system will work,
which is complicating the needs of the system now, which is to re-output the
source XML so that we can selectively start to replace things.
So I'm going to punt on this.
I was also planning out how that edge reassignment out to work, along with
traits to try to enforce it, and that is also complicated, so I may wind up
wanting to leave them in the end, or handling this
differently. Specifically, I'll want to know how `value-of` expressions are
going to work on the graph first, since its target is going to be dynamic
and therefore not knowable at compile-time. (Rather, I know how I want to
make them work, but I want to observe that working in practice first.)
DEV-13597
There is extensive rationale in the documentation for this new macro. I'm
utilizing it to provide a more clear and friendly message for incomplete
ident resolution so that I can move on and return to those situations later.
It's worth noting that:
- Externs _will_ need to be handled in the near-term;
- Opaque and IdentFragment almost certainly won't be bound to a definition
until I introduce LTO, which is quite a ways off; and
- They may use the same mechanism and so may be able to be handled at the
same time anyway.
DEV-13597
The ASG delegates certain operations to Objects so that they may enforce
their own invariants and ontology. It is therefore important that only
objects have access to certain methods on `Asg`, otherwise those invariants
could be circumvented.
It should be noted that the nesting of this module is such that AIR should
_not_ have privileged access to the ASG---it too must utilize objects to
ensure those invariants are enforced in a single place.
DEV-13597