Add block iterator for AdjointTensorMap

Author: lkdvos

src/tensors/adjoint.jl

@@ -25,11 +25,21 @@ storagetype(::Type{AdjointTensorMap{T,S,N₁,N₂,TT}}) where {T,S,N₁,N₂,TT}
 #----------------------
 block(t::AdjointTensorMap, s::Sector) = block(parent(t), s)'
 
-function blocks(t::AdjointTensorMap)
-    iter = Base.Iterators.map(blocks(parent(t))) do (c, b)
-        return c => b'
-    end
-    return iter
+blocks(t::AdjointTensorMap) = BlockIterator(t, blocks(parent(t)))
+
+function blocktype(::Type{TT}) where {T,TT<:AdjointTensorMap{T}}
+    return Base.promote_op(adjoint, blocktype(T))
+end
+
+function Base.iterate(iter::BlockIterator{<:AdjointTensorMap}, state...)
+    next = iterate(iter.structure, state...)
+    isnothing(next) && return next
+    (c, b), newstate = next
+    return c => adjoint(b), newstate
+end
+
+function Base.getindex(iter::BlockIterator{<:AdjointTensorMap}, c::Sector)
+    return adjoint(Base.getindex(iter.structure, c))
 end
 
 function Base.getindex(t::AdjointTensorMap{T,S,N₁,N₂},