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Add MultivariatePolynomials support #4

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Add MultivariatePolynomials support #4

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6 changes: 6 additions & 0 deletions Project.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -9,10 +9,16 @@ LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
[compat]
julia = "1"

[extensions]
VectorInterfaceMultivariatePolynomialsExt = "MultivariatePolynomials"

[extras]
Aqua = "4c88cf16-eb10-579e-8560-4a9242c79595"
Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
TestExtras = "5ed8adda-3752-4e41-b88a-e8b09835ee3a"

[targets]
test = ["Test", "TestExtras", "Aqua"]

[weakdeps]
MultivariatePolynomials = "102ac46a-7ee4-5c85-9060-abc95bfdeaa3"
18 changes: 18 additions & 0 deletions ext/VectorInterfaceMultivariatePolynomialsExt.jl
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@@ -0,0 +1,18 @@
module VectorInterfaceMultivariatePolynomialsExt

import VectorInterface
using MultivariatePolynomials

# union of all abstract types that can be crudely supported?
const PolyTypes = Union{<:AbstractPolynomialLike, <:AbstractTermLike, <:AbstractMonomialLike}

# not clear if this is really the true `scalartype` we want
VectorInterface.scalartype(T::Type{<:PolyTypes}) = T

function VectorInterface.add!!(w::PolyTypes, v::PolyTypes, α::Number, β::Number)
return w * β + v * α
end

VectorInterface.scale!!(v::PolyTypes, α::Number) = v * α

end