Automatic resizing of struct internal array when value changes?

[Ahmed_Salih]

@Sukera

Base.setproperty!(ts::TheStruct, s::Symbol, v)
    if s === :N
        setfield!(ts, s, v) 
        arr = getfield(ts, :x) 
        resize!(arr, v)
    else
        setfield!(ts, s, v) 
    end

I have a struct made as:

# Main Struct for Gradient Values
@with_kw struct ∇ᵢWᵢⱼStruct{T,ST}
    NL::Base.RefValue{Int}

    # Input for calculation
    xᵢⱼ     ::AbstractVector{SVector{ST,T}} = zeros(SVector{ST,T},NL[])
    xᵢⱼ²    ::AbstractVector{T}             = similar(xᵢⱼ,T,NL[])
    dᵢⱼ     ::AbstractVector{T}             = similar(xᵢⱼ,T,NL[])
    qᵢⱼ     ::AbstractVector{T}             = similar(xᵢⱼ,T,NL[])
    ∇ᵢWᵢⱼ   ::AbstractVector{SVector{ST,T}} = similar(xᵢⱼ,NL[])
end

Where NL is the variable determining the length of each array. When I update NL, I wish for all other arrays to update in size as well.

To me this would be neat if it was done through updating “NL” automatically

The reason I use BaseValue.Ref etc. is explained more here:

How to properly pass structs into GPU? (MWE included)

Thank God, I was finally able to do it exactly how I wanted! And this answers my 5th question: 5. Is the way shown here the intended and “state of the art” approach for using structs in GPU programming - if not, what is? I looked at the interpolate example in the docs, and I struggle with grasping it. Short answer, no. The code below is in my opinion much better: # Packages using CUDA using Parameters using StaticArrays using Adapt using Setfield using LinearAlgebra using BenchmarkTools # Co…

So I was hoping that by updating NL I could trigger a “reaction” updating everything which is an AbstractArray in the struct to the new size

Kind regards