Don't cast indices to `Int` in `isassigned` call while displaying arrays (#56863)
The comment on the line says that `isassgined` requires `Int` indices,
but this isn't correct: it accepts arbitrary `Integer` indices. The
corresponding methods are defined in `multidimensional.jl`. E.g.:
```julia
julia> isassigned(ones(2), big(2))
true
```
We may therefore pass the indices to the call directly without
converting them to `Int`s. This helps for huge arrays, where the indices
may lie outside the bounds of `Int`, but are otherwise valid.
As an example, the following would work correctly after this, whereas
displaying the array errors currently:
```julia
julia> struct MyBigFill{T,N} <: AbstractArray{T,N}
val :: T
axes :: NTuple{N,Base.OneTo{BigInt}}
end
julia> MyBigFill(val, sz::Tuple{}) = MyBigFill{typeof(val),0}(val, sz)
MyBigFill
julia> MyBigFill(val, sz::NTuple{N,BigInt}) where {N} = MyBigFill(val, map(Base.OneTo, sz))
MyBigFill
julia> MyBigFill(val, sz::Tuple{Vararg{Integer}}) = MyBigFill(val, map(BigInt, sz))
MyBigFill
julia> Base.size(M::MyBigFill) = map(length, M.axes)
julia> Base.axes(M::MyBigFill) = M.axes
julia> function Base.getindex(M::MyBigFill{<:Any,N}, ind::Vararg{Integer,N}) where {N}
checkbounds(M, ind...)
M.val
end
julia> function Base.isassigned(M::MyBigFill{<:Any,N}, ind::Vararg{BigInt,N}) where {N}
checkbounds(M, ind...)
true
end
julia> M = MyBigFill(4, (big(2)^65, 3))
36893488147419103232×3 MyBigFill{Int64, 2}:
4 4 4
4 4 4
4 4 4
4 4 4
4 4 4
4 4 4
4 4 4
4 4 4
4 4 4
4 4 4
⋮
4 4 4
4 4 4
4 4 4
4 4 4
4 4 4
4 4 4
4 4 4
4 4 4
4 4 4
```
---------
Co-authored-by: Oscar Smith <oscardssmith@gmail.com>
julia
c93e28e8 - Don't cast indices to `Int` in `isassigned` call while displaying arrays (#56863)
