From 402ec204b3e0b4238f834c2046e7057327e73cf7 Mon Sep 17 00:00:00 2001
From: Rob <rob.rimmer@mclaren.com>
Date: Thu, 3 Feb 2022 09:42:13 +0000
Subject: [PATCH] MsgFunc function added to Event Allows lazy evaluation of msg
 text, only if log level is appropriate.

---
 event.go | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/event.go b/event.go
index a5f59382..b9fa1389 100644
--- a/event.go
+++ b/event.go
@@ -129,6 +129,13 @@ func (e *Event) Msgf(format string, v ...interface{}) {
 	e.msg(fmt.Sprintf(format, v...))
 }
 
+func (e *Event) MsgFunc(createMsg func() string) {
+	if e == nil {
+		return
+	}
+	e.msg(createMsg())
+}
+
 func (e *Event) msg(msg string) {
 	for _, hook := range e.ch {
 		hook.Run(e, e.level, msg)