How to create a reversed view that allows for growing arrays?

General Usage
2

I think this is the use case for a Reversed wrapper that constructs a range when getindex is called:

struct Reversed{T<:AbstractArray}
    A::T
end

Base.getindex(a::Reversed, i::Int) = a.A[end-i+1]

v = [1, 2, 3]
a = Reversed(v)
a[1] # 3
push!(v, 4)
a[1] # 4
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