From de398b0fdee3081c323c43d9dac4a6690e0a6b4f Mon Sep 17 00:00:00 2001
From: Stephen Gutekanst <stephen@hexops.com>
Date: Sun, 26 Mar 2023 22:24:10 -0700
Subject: [PATCH] ecs: avoid @tagName failure on empty union field

Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
---
 libs/ecs/src/systems.zig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libs/ecs/src/systems.zig b/libs/ecs/src/systems.zig
index fddec2a9..b7d2d6af 100644
--- a/libs/ecs/src/systems.zig
+++ b/libs/ecs/src/systems.zig
@@ -99,7 +99,7 @@ pub fn MessagesTag(comptime messages: anytype) type {
     });
 }
 
-const NoComponents = @TypeOf(.{});
+const NoComponents = @TypeOf(.{ .none = void });
 const NoState = @TypeOf(.{});
 
 /// Returns the namespaced components struct **type**.