Update bases.jl

Author: dlfivefifty

src/bases/bases.jl

@@ -125,12 +125,12 @@ struct TransformFactorization{T,Grid,Plan,IPlan} <: Factorization{T}
     iplan::IPlan
 end
 
-TransformFactorization(grid, plan) = 
-    TransformFactorization{promote_type(eltype(grid),eltype(plan)),typeof(grid),typeof(plan),Nothing}(grid, plan, nothing)
+TransformFactorization{T}(grid, plan) where T = TransformFactorization{T,typeof(grid),typeof(plan),Nothing}(grid, plan, nothing)
+TransformFactorization(grid, plan) = TransformFactorization{promote_type(eltype(eltype(grid)),eltype(plan))}(grid, plan)
 
 
-TransformFactorization(grid, ::Nothing, iplan) = 
-    TransformFactorization{promote_type(eltype(grid),eltype(iplan)),typeof(grid),Nothing,typeof(iplan)}(grid, nothing, iplan)
+TransformFactorization{T}(grid, ::Nothing, iplan) where T = TransformFactorization{T,typeof(grid),Nothing,typeof(iplan)}(grid, nothing, iplan)
+TransformFactorization(grid, ::Nothing, iplan) = TransformFactorization{promote_type(eltype(eltype(grid)),eltype(iplan))}(grid, nothing, iplan)
 
 grid(T::TransformFactorization) = T.grid