Mooncake Ext (#741)

* Mooncake ext

* Bump patch version

* Update ext/DynamicPPLMooncakeExt.jl

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

* Update test/ext/DynamicPPLMooncakeExt.jl

* Update test/ext/DynamicPPLMooncakeExt.jl

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

---------

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Author: willtebbutt

Project.toml

@@ -1,6 +1,6 @@
 name = "DynamicPPL"
 uuid = "366bfd00-2699-11ea-058f-f148b4cae6d8"
-version = "0.31.3"
+version = "0.31.4"
 
 [deps]
 ADTypes = "47edcb42-4c32-4615-8424-f2b9edc5f35b"
@@ -30,13 +30,15 @@ ChainRulesCore = "d360d2e6-b24c-11e9-a2a3-2a2ae2dbcce4"
 EnzymeCore = "f151be2c-9106-41f4-ab19-57ee4f262869"
 ForwardDiff = "f6369f11-7733-5829-9624-2563aa707210"
 MCMCChains = "c7f686f2-ff18-58e9-bc7b-31028e88f75d"
+Mooncake = "da2b9cff-9c12-43a0-ae48-6db2b0edb7d6"
 ZygoteRules = "700de1a5-db45-46bc-99cf-38207098b444"
 
 [extensions]
 DynamicPPLChainRulesCoreExt = ["ChainRulesCore"]
 DynamicPPLEnzymeCoreExt = ["EnzymeCore"]
 DynamicPPLForwardDiffExt = ["ForwardDiff"]
 DynamicPPLMCMCChainsExt = ["MCMCChains"]
+DynamicPPLMooncakeExt = ["Mooncake"]
 DynamicPPLZygoteRulesExt = ["ZygoteRules"]
 
 [compat]
@@ -58,6 +60,7 @@ LogDensityProblems = "2"
 LogDensityProblemsAD = "1.7.0"
 MCMCChains = "6"
 MacroTools = "0.5.6"
+Mooncake = "0.4.59"
 OrderedCollections = "1"
 Random = "1.6"
 Requires = "1"

ext/DynamicPPLMooncakeExt.jl

@@ -0,0 +1,9 @@
+module DynamicPPLMooncakeExt
+
+using DynamicPPL: DynamicPPL, istrans
+using Mooncake: Mooncake
+
+# This is purely an optimisation.
+Mooncake.@zero_adjoint Mooncake.DefaultCtx Tuple{typeof(istrans),Vararg}
+
+end # module

test/Project.toml

@@ -45,7 +45,7 @@ LogDensityProblems = "2"
 LogDensityProblemsAD = "1.7.0"
 MCMCChains = "6.0.4"
 MacroTools = "0.5.6"
-Mooncake = "0.4.50"
+Mooncake = "0.4.59"
 ReverseDiff = "1"
 StableRNGs = "1"
 Tracker = "0.2.23"

test/ext/DynamicPPLMooncakeExt.jl

@@ -0,0 +1,5 @@
+@testset "DynamicPPLMooncakeExt" begin
+    Mooncake.TestUtils.test_rule(
+        StableRNG(123456), istrans, VarInfo(); unsafe_perturb=true, interface_only=true
+    )
+end

test/runtests.jl

@@ -13,6 +13,7 @@ using LogDensityProblems, LogDensityProblemsAD
 using MacroTools
 using MCMCChains
 using Mooncake: Mooncake
+using StableRNGs
 using Tracker
 using ReverseDiff
 using Zygote
@@ -77,6 +78,7 @@ include("test_util.jl")
 
         @testset "ad" begin
             include("ext/DynamicPPLForwardDiffExt.jl")
+            include("ext/DynamicPPLMooncakeExt.jl")
             include("ad.jl")
         end