Add comment explaining why iota is not used.

11 years ago · 357b4bc14c
parent 5adbd39946
commit 357b4bc14c
2 changed files with 6 additions and 0 deletions
--- a/ethwire/messaging.go
+++ b/ethwire/messaging.go
@ -19,6 +19,9 @@ var MagicToken = []byte{34, 64, 8, 145}
 type MsgType byte

 const (
+	// Values are given explicitly instead of by iota because these values are
+	// defined by the wire protocol spec; it is easier for humans to ensure
+	// correctness when values are explicit.
 	MsgHandshakeTy  = 0x00
 	MsgDiscTy       = 0x01
 	MsgPingTy       = 0x02
--- a/peer.go
+++ b/peer.go
@ -23,6 +23,9 @@ const (
 type DiscReason byte

 const (
+	// Values are given explicitly instead of by iota because these values are
+	// defined by the wire protocol spec; it is easier for humans to ensure
+	// correctness when values are explicit.
 	DiscReRequested  = 0x00
 	DiscReTcpSysErr  = 0x01
 	DiscBadProto     = 0x02