module Grids

using Sbplib.RegionIndices

export BoundaryIdentifier, CartesianBoundary

abstract type BoundaryIdentifier end
struct CartesianBoundary{Dim, R<:Region} <: BoundaryIdentifier end
dim(::CartesianBoundary{Dim, R}) where {Dim, R} = Dim
region(::CartesianBoundary{Dim, R}) where {Dim, R} = R  #TODO: Should return R()

export dim, region

include("AbstractGrid.jl")
include("EquidistantGrid.jl")

# TODO: Rename AbstractGrid to Grid and move definition here.

end # module