pseudo structural inheritance for the Julia language
julia> using StructuralInheritance
julia> @protostruct struct A{T}
fieldFromA::T
end
ProtoA
julia> @protostruct struct B{D} <: A{Complex{D}}
fieldFromB::D
end "SomeOtherPrefix"
SomeOtherPrefixB
julia> @protostruct struct C <: B{Int}
fieldFromC
end
ProtoCIf we take a look at C we can see it inherits structure.
julia> @doc C
No documentation found.
Summary
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struct C <: ProtoC
Fields
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fieldFromA :: Complex{Int64}
fieldFromB :: Int64
fieldFromC :: Any
Supertype Hierarchy
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C <: ProtoC <: SomeOtherPrefixB{Int64} <: ProtoA{Complex{Int64}} <: Anyfunctions can be written to take advantage of the inherited structure
julia> getFieldA(x::ProtoA) = x.fieldFromA
getFieldA (generic function with 1 method)
julia> getFieldA(C(3 + im,2,"c's new field"))
3 + 1im
julia> using StructuralInheritance
julia> @protostruct struct R
ff::Int
sf
R(x) = new(x,x^2)
R(x,y) = new(x,y)
end
ProtoR
julia> @protostruct struct S <: R
tf::Int
end
ProtoSWe can call the constructor in R and use its values to fill fields in S.
julia> S(x) = S(StructuralInheritance.totuple(R(x))...,x^3)
S
julia> S(2)
S(2, 4, 8)It is worth noting that this cannot be used with new() as new does not permit splatting.