Fix issue in delta constructor (#71)

Author: mtfishman

Project.toml

@@ -1,7 +1,7 @@
 name = "DiagonalArrays"
 uuid = "74fd4be6-21e2-4f6f-823a-4360d37c7a77"
 authors = ["ITensor developers <support@itensor.org> and contributors"]
-version = "0.3.30"
+version = "0.3.31"
 
 [deps]
 ArrayLayouts = "4c555306-a7a7-4459-81d9-ec55ddd5c99a"

ext/DiagonalArraysNamedDimsArraysExt/DiagonalArraysNamedDimsArraysExt.jl

@@ -1,13 +1,13 @@
 module DiagonalArraysNamedDimsArraysExt
 
 using DiagonalArrays: DiagonalArrays, δ, delta
-using NamedDimsArrays: AbstractNamedUnitRange, nameddims
+using NamedDimsArrays: AbstractNamedUnitRange, denamed, name, nameddims
 
 function DiagonalArrays.delta(
         elt::Type{<:Number},
         is::Tuple{AbstractNamedUnitRange, Vararg{AbstractNamedUnitRange}},
     )
-    return nameddims(delta(elt, Int.(length.(is))), is)
+    return nameddims(delta(elt, length.(denamed.(is))), name.(is))
 end
 # TODO: Make `δ` an alias for `delta` so this isn't needed.
 function DiagonalArrays.δ(