From 801e4c4700a21381fd52f9a0197f139c555c03d5 Mon Sep 17 00:00:00 2001
From: mpilman <markus.pilman@snowflake.com>
Date: Sun, 17 Feb 2019 14:26:21 -0800
Subject: [PATCH] Make when-macros work by accepting varargs

---
 flow/actorcompiler.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/flow/actorcompiler.h b/flow/actorcompiler.h
index ac42b40b9a..a519f8426f 100644
--- a/flow/actorcompiler.h
+++ b/flow/actorcompiler.h
@@ -31,7 +31,7 @@ template<typename T> struct FutureStream;
 #define state
 #define UNCANCELLABLE
 #define choose if(1)
-#define when(x) for(x;;)
+#define when(...) for(__VA_ARGS__;;)
 template <class T> T wait( const Future<T>& );
 void wait(const Never&);
 template <class T> T waitNext( const FutureStream<T>& );