From 9048506981ee943bf40e5a4d2f35e2f1a0b7b768 Mon Sep 17 00:00:00 2001
From: Emery Hemingway <ehmry@posteo.net>
Date: Sat, 21 May 2022 13:21:02 -0500
Subject: [PATCH] Replace mutable handles in-place

---
 src/syndicate/actors.nim | 6 ++++++
 syndicate.nimble         | 2 +-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/syndicate/actors.nim b/src/syndicate/actors.nim
index 8cb7b45..8fcfb48 100644
--- a/src/syndicate/actors.nim
+++ b/src/syndicate/actors.nim
@@ -291,6 +291,12 @@ proc replace*[T](turn: var Turn; `ref`: Ref; h: Handle; v: T): Handle =
   result = publish(turn, `ref`, v)
   retract(turn, h)
 
+proc replace*[T](turn: var Turn; `ref`: Ref; h: var Handle; v: T): Handle {.discardable.} =
+  var old = h
+  h = publish(turn, `ref`, v)
+  retract(turn, old)
+  h
+
 proc stop*(turn: var Turn) {.gcsafe.}
 
 proc run*(facet; action: TurnAction; zombieTurn = false) {.gcsafe.}
diff --git a/syndicate.nimble b/syndicate.nimble
index 6d28222..af03d9f 100644
--- a/syndicate.nimble
+++ b/syndicate.nimble
@@ -1,6 +1,6 @@
 # Package
 
-version       = "1.3.0"
+version       = "1.3.1"
 author        = "Emery Hemingway"
 description   = "Syndicated actors for conversational concurrency"
 license       = "Unlicense"