Give BioSequences Base.IndexStyle, and Base.ndims.

Author: Ben J. Ward

src/biosequence/biosequence.jl

@@ -44,14 +44,17 @@ Base.keys(seq::BioSequence) = eachindex(seq)
 Base.nextind(::BioSequence, i::Integer) = Int(i) + 1
 Base.prevind(::BioSequence, i::Integer) = Int(i) - 1
 Base.size(x::BioSequence) = (length(x),)
-Base.ndims(x::BioSequence) = 1
+Base.ndims(::Type{<:BioSequence}) = 1
+Base.ndims(::T) where {T<:BioSequence} = 1
+Base.IndexStyle(x::BioSequence) = Base.IndexStyle(typeof(x))
+Base.IndexStyle(::Type{<:BioSequence}) = Base.IndexLinear()
 Base.eltype(::Type{<:BioSequence{A}}) where {A <: Alphabet} = eltype(A)
 Base.eltype(x::BioSequence) = eltype(typeof(x))
-Alphabet(::Type{<:BioSequence{A}}) where {A <: Alphabet} = A()
-Alphabet(x::BioSequence) = Alphabet(typeof(x))
 Base.isempty(x::BioSequence) = iszero(length(x))
 Base.empty(::Type{T}) where {T <: BioSequence} = T(eltype(T)[])
 Base.empty(x::BioSequence) = empty(typeof(x))
+Alphabet(::Type{<:BioSequence{A}}) where {A <: Alphabet} = A()
+Alphabet(x::BioSequence) = Alphabet(typeof(x))
 BitsPerSymbol(x::BioSequence) = BitsPerSymbol(Alphabet(typeof(x)))
 
 function Base.similar(seq::BioSequence, len::Integer=length(seq))