Overflow evaluating the type which may not exist

help
1

I get closer to the problem, and it seems to be a bug

Why? And how to solve it?
(plz don't mind the name)
You can start reading from bottom. And I'll try to explain something.

TupleNode and TupleEnd are tuple.
TupleNode<T1,TupleNode<T2>,TupleEnd>

Mapper is Fn(A)->B

simply, MapperCollector<TMapper,CollectAsTuple> is to map all element of tuple (consumed) and generate new one

(& tuple).into_tuple() is to make tuple of ref like TupleNode<&T1,TupleNode<&T2>,TupleEnd>

Visitor is for iterating all elements in the tuple

components_to_container_ref_cell_s is from tuple of T into tuple of instance of RefCell<[RawVec<T>;ARCHETYPE_COUNT]>

2

it looks like you have a self-referential type somewhere.

3

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