Inconsistent pool and invpool PooledArrays

SamTheGeneticCoder · July 9, 2024, 1:58pm

Hi there!

Could someone help me understand the “inconsistent pool and invpool” error in PooledArrays.jl?

JuliaData/PooledArrays.jl/blob/main/src/PooledArrays.jl#L51


      
          # we currently support only 1-based indexing for refs
          # TODO: change to Base.require_one_based_indexing after we drop Julia 1.0 support
          for ax in axes(rs.a)
              if first(ax) != 1
                  throw(ArgumentError("offset arrays are not supported but got an array with index other than 1"))
              end
          end
          
          # this is a quick but incomplete consistency check
          if length(pool) != length(invpool)
              throw(ArgumentError("inconsistent pool and invpool"))
          end
          if length(rs.a) > 0
              # 0 indicates #undef
              # refs mustn't overflow pool
              minref, maxref = extrema(rs.a)
              if (minref < 0 || maxref > length(invpool))
                  throw(ArgumentError("Reference array points beyond the end of the pool"))
              end
          end
          pa = new{T,R,N,RA}(rs.a, pool, invpool, refcount)

Thanks in advance!