From c20083f2006e4399746f89fc558d211e9867d0ce Mon Sep 17 00:00:00 2001
From: Guillaume Dalle <22795598+gdalle@users.noreply.github.com>
Date: Fri, 6 Dec 2024 08:39:20 +0100
Subject: [PATCH] Handle static arrays with Mooncake (#643)

---
 .../DifferentiationInterfaceMooncakeExt.jl                      | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/DifferentiationInterface/ext/DifferentiationInterfaceMooncakeExt/DifferentiationInterfaceMooncakeExt.jl b/DifferentiationInterface/ext/DifferentiationInterfaceMooncakeExt/DifferentiationInterfaceMooncakeExt.jl
index e6386e7aa..667aadee9 100644
--- a/DifferentiationInterface/ext/DifferentiationInterfaceMooncakeExt/DifferentiationInterfaceMooncakeExt.jl
+++ b/DifferentiationInterface/ext/DifferentiationInterfaceMooncakeExt/DifferentiationInterfaceMooncakeExt.jl
@@ -16,7 +16,7 @@ using Mooncake:
 DI.check_available(::AutoMooncake) = true
 
 copyto!!(dst::Number, src::Number) = convert(typeof(dst), src)
-copyto!!(dst, src) = copyto!(dst, src)
+copyto!!(dst, src) = DI.ismutable_array(dst) ? copyto!(dst, src) : convert(typeof(dst), src)
 
 get_config(::AutoMooncake{Nothing}) = Config()
 get_config(backend::AutoMooncake{<:Config}) = backend.config