From 20aaa9e3467008f8ae0276521582403986965779 Mon Sep 17 00:00:00 2001
From: Dilum Aluthge <dilum@aluthge.com>
Date: Sat, 21 Feb 2026 03:19:51 -0500
Subject: [PATCH] Fix a JET error regarding the existence of the local variable
 `reducer` at a certain point (#169)
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This is a forward-port of https://github.com/JuliaLang/Distributed.jl/pull/169 (https://github.com/JuliaLang/Distributed.jl/commit/1bc91f97a75c1ac321ed28dfca072cbabfad7b4c).

```
┌ var"@distributed"(__source__::LineNumberNode, __module__::Module, args::Vararg{Any}) @ Distributed /workpath/Distributed.jl/src/macros.jl:363
│ local variable `reducer` may be undefined: reducer::Any
└────────────────────
```

(cherry picked from commit 1bc91f97a75c1ac321ed28dfca072cbabfad7b4c)
---
 src/macros.jl | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/macros.jl b/src/macros.jl
index c58faf6..ea98c60 100644
--- a/src/macros.jl
+++ b/src/macros.jl
@@ -333,6 +333,7 @@ completion. To wait for completion, prefix the call with [`@sync`](@ref), like :
 macro distributed(args...)
     na = length(args)
     if na==1
+        reducer = identity
         loop = args[1]
     elseif na==2
         reducer = args[1]