From d26887310cc3f70beb362cb9228679e54f129316 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Olivier=20Mengu=C3=A9?= <dolmen@cpan.org>
Date: Fri, 7 Oct 2022 14:28:37 +0200
Subject: [PATCH] Reduce init time allocation when declaring types used for
 reflect (#821)

In declaration of types used for reflect, use
reflect.TypeOf((*T)).Elem() instead of reflect.TypeOf(T{}) to avoid
init-time allocations.

See related stdlib issue: https://github.com/golang/go/issues/55973
---
 types.go | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/types.go b/types.go
index 630a4546..3c6b8fe5 100644
--- a/types.go
+++ b/types.go
@@ -6,9 +6,9 @@ import (
 	"time"
 )
 
-var timeType = reflect.TypeOf(time.Time{})
-var textMarshalerType = reflect.TypeOf(new(encoding.TextMarshaler)).Elem()
-var textUnmarshalerType = reflect.TypeOf(new(encoding.TextUnmarshaler)).Elem()
-var mapStringInterfaceType = reflect.TypeOf(map[string]interface{}{})
-var sliceInterfaceType = reflect.TypeOf([]interface{}{})
+var timeType = reflect.TypeOf((*time.Time)(nil)).Elem()
+var textMarshalerType = reflect.TypeOf((*encoding.TextMarshaler)(nil)).Elem()
+var textUnmarshalerType = reflect.TypeOf((*encoding.TextUnmarshaler)(nil)).Elem()
+var mapStringInterfaceType = reflect.TypeOf(map[string]interface{}(nil))
+var sliceInterfaceType = reflect.TypeOf([]interface{}(nil))
 var stringType = reflect.TypeOf("")