use GradedAxes interface

Author: ogauthe

NDTensors/src/lib/GradedAxes/src/gradedunitrangedual.jl

@@ -17,26 +17,28 @@ Base.step(a::GradedUnitRangeDual) = label_dual(step(nondual(a)))
 
 Base.view(a::GradedUnitRangeDual, index::Block{1}) = a[index]
 
-function Base.getindex(a::GradedUnitRangeDual, indices::AbstractUnitRange{<:Integer})
+function gradedunitrange_getindices(
+  a::GradedUnitRangeDual, indices::AbstractUnitRange{<:Integer}
+)
   return dual(getindex(nondual(a), indices))
 end
 
 using BlockArrays: Block, BlockIndexRange, BlockRange
 
-function Base.getindex(a::GradedUnitRangeDual, indices::Integer)
+function gradedunitrange_getindices(a::GradedUnitRangeDual, indices::Integer)
   return label_dual(getindex(nondual(a), indices))
 end
 
-function Base.getindex(a::GradedUnitRangeDual, indices::Block{1})
+function gradedunitrange_getindices(a::GradedUnitRangeDual, indices::Block{1})
   return label_dual(getindex(nondual(a), indices))
 end
 
-function Base.getindex(a::GradedUnitRangeDual, indices::BlockRange)
+function gradedunitrange_getindices(a::GradedUnitRangeDual, indices::BlockRange)
   return label_dual(getindex(nondual(a), indices))
 end
 
 # fix ambiguity
-function Base.getindex(
+function gradedunitrange_getindices(
   a::GradedUnitRangeDual, indices::BlockRange{1,<:Tuple{AbstractUnitRange{Int}}}
 )
   return dual(getindex(nondual(a), indices))
@@ -52,15 +54,13 @@ function unitrangedual_getindices_blocks(a::GradedUnitRangeDual, indices)
 end
 
 # TODO: Move this to a `BlockArraysExtensions` library.
-function blockedunitrange_getindices(a::GradedUnitRangeDual, indices::Block{1})
-  return a[indices]
-end
-
-function Base.getindex(a::GradedUnitRangeDual, indices::Vector{<:Block{1}})
+function gradedunitrange_getindices(a::GradedUnitRangeDual, indices::Vector{<:Block{1}})
   return unitrangedual_getindices_blocks(a, indices)
 end
 
-function Base.getindex(a::GradedUnitRangeDual, indices::Vector{<:BlockIndexRange{1}})
+function gradedunitrange_getindices(
+  a::GradedUnitRangeDual, indices::Vector{<:BlockIndexRange{1}}
+)
   return unitrangedual_getindices_blocks(a, indices)
 end
 
@@ -79,16 +79,10 @@ function BlockArrays.BlockSlice(b::Block, r::GradedUnitRangeDual)
 end
 
 using NDTensors.LabelledNumbers: LabelledNumbers, LabelledUnitRange, label
-# The Base version of `length(::AbstractUnitRange)` drops the label.
-function Base.length(a::GradedUnitRangeDual{<:Any,<:LabelledUnitRange})
-  return dual(length(nondual(a)))
-end
 function Base.iterate(a::GradedUnitRangeDual, i)
   i == last(a) && return nothing
   return dual.(iterate(nondual(a), i))
 end
-# TODO: Is this a good definition?
-Base.unitrange(a::GradedUnitRangeDual) = a
 
 using NDTensors.LabelledNumbers: LabelledInteger, label, labelled, unlabel
 using BlockArrays: BlockArrays, blockaxes, blocklasts, combine_blockaxes, findblock