fixup! fixup! fixup! datadeps: Add at-stencil helper

Author: jpsamaroo

src/stencil.jl

@@ -3,13 +3,16 @@ const Read = In
 const Write = Out
 const ReadWrite = InOut
 
-function validate_neigh_dist(neigh_dist, size)
+function validate_neigh_dist(neigh_dist)
     if !(neigh_dist isa Integer)
         throw(ArgumentError("Neighborhood distance ($neigh_dist) must be an Integer"))
     end
     if neigh_dist <= 0
         throw(ArgumentError("Neighborhood distance ($neigh_dist) must be greater than 0"))
     end
+end
+function validate_neigh_dist(neigh_dist, size)
+    validate_neigh_dist(neigh_dist)
     if any(size .< neigh_dist)
         throw(ArgumentError("Neighborhood distance ($neigh_dist) must not be larger than the chunk size ($size)"))
     end
@@ -34,7 +37,7 @@ function load_neighbor_corner(arr, corner_side, neigh_dist)
     return move(task_processor(), collect(@view arr[start_idx:stop_idx]))
 end
 function select_neighborhood_chunks(chunks, idx, neigh_dist, boundary)
-    @assert neigh_dist isa Integer && neigh_dist > 0 "Neighborhood distance must be an Integer greater than 0"
+    validate_neigh_dist(neigh_dist)
 
     # FIXME: Depends on neigh_dist and chunk size
     chunk_dist = 1