Define size more explicitly, helping the compiler

Author: Keno

src/MArray.jl

@@ -34,6 +34,8 @@ type MArray{Size, T, N, L} <: StaticArray{T, N}
         new{Size,T,N,L}()
     end
 end
+size(t::MArray{S}) where S = tuple(S.parameters...)
+size(t::MArray{S},d::Int) where S = S.parameters[d]
 
 @generated function check_marray_parameters{Size,T,N,L}(::Type{Val{Size}}, ::Type{T}, ::Type{Val{N}}, ::Type{Val{L}})
     if !(isa(Size, Tuple{Vararg{Int}}))

src/SArray.jl

@@ -28,6 +28,8 @@ immutable SArray{Size, T, N, L} <: StaticArray{T, N}
         new{Size,T,N,L}(convert_ntuple(T, x))
     end
 end
+size(t::SArray{S}) where S = tuple(S.parameters...)
+size(t::SArray{S},d::Int) where S = S.parameters[d]
 
 @generated function check_sarray_parameters{Size,T,N,L}(::Type{Val{Size}}, ::Type{T}, ::Type{Val{N}}, ::Type{Val{L}})
     if !(isa(Size, Tuple{Vararg{Int}}))

src/SizedArray.jl

@@ -23,6 +23,8 @@ immutable SizedArray{S,T,N,M} <: StaticArray{T,N}
         new{S,T,N,M}(Array{T,M}(S))
     end
 end
+size(t::SizedArray{S}) where S = S
+size(t::SizedArray{S},d::Int) where S = S[d]
 
 @inline (::Type{SizedArray{S,T,N}}){S,T,N,M}(a::Array{T,M}) = SizedArray{S,T,N,M}(a)
 @inline (::Type{SizedArray{S,T}}){S,T,M}(a::Array{T,M}) = SizedArray{S,T,_ndims(S),M}(a)