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Handle tuples with types in them #236

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Handle tuples with types in them #236

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fb11a9c
type of type erasure in ∂☆new
oxinabox Oct 16, 2023
2a9a3f7
tests for type of type
oxinabox Oct 17, 2023
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3 changes: 2 additions & 1 deletion src/stage1/recurse_fwd.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -24,7 +24,8 @@ function (::∂☆new{1})(B::Type, xs::AbstractTangentBundle{1}...)
tangent_nt = NamedTuple{names}(tangent_tup)
Tangent{B, typeof(tangent_nt)}(tangent_nt)
end
return TaylorBundle{1, B}(the_primal, (the_partial,))
B2 = typeof(the_primal) # HACK: if the_primal actually has types in it then we want to make sure we get DataType not Type(...)
return TaylorBundle{1, B2}(the_primal, (the_partial,))
end

function (::∂☆new{N})(B::Type, xs::AbstractTangentBundle{N}...) where {N}
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12 changes: 12 additions & 0 deletions test/forward.jl
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Expand Up @@ -148,6 +148,18 @@ end
end


@testset "types in tuples" begin
function foo(a)
tup = (a, 2a, Int)
return tup[2]
end

let var"'" = Diffractor.PrimeDerivativeFwd
@test foo'(100.0) == 2.0
end
end


@testset "taylor_compatible" begin
taylor_compatible = Diffractor.taylor_compatible

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