On Monday, 4 August 2025 at 02:47:47 UTC, Jonathan M Davis wrote:
The spec does use the term "aggregate type" to refer to
classes, structs, interfaces, and unions, since they're all
aggregates of values. However, from what I've seen, the term
isn't used very often outside of the spec, and I don't think
that I've ever seen the term "aggregate instance" before. From
what I've seen, instances of both structs and classes are
routinely referred to as objects.
The Structs page uses `object` quite a lot.
Regardless, it's not like we have a precise definition of what
"object" means in D in the spec anywhere AFAIK.
To complicate matters, the spec sometimes uses 'object' just to
mean an instance of any type:
If a pointer contains a null value, it is not pointing to a
valid object.
https://dlang.org/spec/type.html#pointers
Note: git blame has my name on those lines, because I moved them
there from arrays.dd. I think there are other places in the spec
too but I've not found them after a quick look. Anyway that
section could be fixed.
