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Merged
merged 3 commits into from
Sep 22, 2025
Merged

Support ADTypes.NoAutoDiff #851

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38a8858
Support ADTypes.NoAutoDiff
oschulz Sep 12, 2025
3930398
Require ADTypes v1.17 for NoAutoDiff
oschulz Sep 18, 2025
8c13b66
Specialize inplace_support for NoAutoDiff, update ChangeLog
oschulz Sep 22, 2025
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2 changes: 2 additions & 0 deletions DifferentiationInterface/CHANGELOG.md
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Expand Up @@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0

## [Unreleased](https://github.com/JuliaDiff/DifferentiationInterface.jl/compare/DifferentiationInterface-v0.7.7...main)

- Support the new `ADTypes.NoAutoDiff` ([#851](https://github.com/JuliaDiff/DifferentiationInterface.jl/pull/851))

## [0.7.7](https://github.com/JuliaDiff/DifferentiationInterface.jl/compare/DifferentiationInterface-v0.7.6...DifferentiationInterface-v0.7.7)

- Improve support for empty inputs (still not guaranteed) ([#835](https://github.com/JuliaDiff/DifferentiationInterface.jl/pull/835))
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2 changes: 1 addition & 1 deletion DifferentiationInterface/Project.toml
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Expand Up @@ -56,7 +56,7 @@ DifferentiationInterfaceTrackerExt = "Tracker"
DifferentiationInterfaceZygoteExt = ["Zygote", "ForwardDiff"]

[compat]
ADTypes = "1.17.0"
ADTypes = "1.18.0"
ChainRulesCore = "1.23.0"
DiffResults = "1.1.0"
Diffractor = "=0.2.6"
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2 changes: 2 additions & 0 deletions DifferentiationInterface/src/utils/check.jl
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Expand Up @@ -16,6 +16,8 @@ function check_available(backend::MixedMode)
check_available(reverse_backend(backend))
end

check_available(::ADTypes.NoAutoDiff) = throw(ADTypes.NoAutoDiffSelectedError())

"""
check_inplace(backend)

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2 changes: 2 additions & 0 deletions DifferentiationInterface/src/utils/traits.jl
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Expand Up @@ -23,6 +23,8 @@ Return [`InPlaceSupported`](@ref) or [`InPlaceNotSupported`](@ref) in a statical
"""
inplace_support(::AbstractADType) = InPlaceSupported()

inplace_support(::ADTypes.NoAutoDiff) = throw(ADTypes.NoAutoDiffSelectedError())

function inplace_support(backend::SecondOrder)
if inplace_support(inner(backend)) isa InPlaceSupported &&
inplace_support(outer(backend)) isa InPlaceSupported
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5 changes: 5 additions & 0 deletions DifferentiationInterface/test/Core/Internals/backends.jl
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Expand Up @@ -18,6 +18,11 @@ using Test
fb = AutoSimpleFiniteDiff()
rb = AutoReverseFromPrimitive(AutoSimpleFiniteDiff())

@testset "NoAutoDiff" begin
@test_throws NoAutoDiffSelectedError check_available(NoAutoDiff())
@test_throws NoAutoDiffSelectedError inplace_support(NoAutoDiff())
end

@testset "SecondOrder" begin
backend = SecondOrder(fb, rb)
@test check_available(backend)
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