From bfd69f5381b7c2c802f1aeb364178583fbe694a6 Mon Sep 17 00:00:00 2001
From: whyrusleeping <why@ipfs.io>
Date: Mon, 9 Aug 2021 12:17:54 +0200
Subject: [PATCH] WIP: dont panic if input is bad

---
 chain/actors/version.go | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/chain/actors/version.go b/chain/actors/version.go
index 778fbda9d..36e8d17b4 100644
--- a/chain/actors/version.go
+++ b/chain/actors/version.go
@@ -21,19 +21,19 @@ const (
 )
 
 // Converts a network version into an actors adt version.
-func VersionForNetwork(version network.Version) Version {
+func VersionForNetwork(version network.Version) (Version, error) {
 	switch version {
 	case network.Version0, network.Version1, network.Version2, network.Version3:
-		return Version0
+		return Version0, nil
 	case network.Version4, network.Version5, network.Version6, network.Version6AndAHalf, network.Version7, network.Version8, network.Version9:
-		return Version2
+		return Version2, nil
 	case network.Version10, network.Version11:
-		return Version3
+		return Version3, nil
 	case network.Version12:
-		return Version4
+		return Version4, nil
 	case network.Version13:
-		return Version5
+		return Version5, nil
 	default:
-		panic(fmt.Sprintf("unsupported network version %d", version))
+		return -1, fmt.Errorf("unsupported network version %d", version)
 	}
 }