From: cui fliter <imcusg@gmail.com>
Date: Wed, 2 Aug 2023 08:38:12 +0000 (+0800)
Subject: cmd/fix: use reflect.TypeFor for known types
X-Git-Tag: go1.22rc1~1401
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=2d2662f8d0b50d123da2f6674308cf5e0c21e062;p=gostls13.git

cmd/fix: use reflect.TypeFor for known types

For #60088

Change-Id: Id19435e864bcfd2adbb1492db3f8cdf2ee3c915e
Reviewed-on: https://go-review.googlesource.com/c/go/+/515175
Auto-Submit: Ian Lance Taylor <iant@google.com>
Run-TryBot: shuang cui <imcusg@gmail.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
---

diff --git a/src/cmd/fix/cftype.go b/src/cmd/fix/cftype.go
index e4988b1c62..d4fcc4485e 100644
--- a/src/cmd/fix/cftype.go
+++ b/src/cmd/fix/cftype.go
@@ -60,8 +60,8 @@ func typefix(f *ast.File, badType func(string) bool) bool {
 	// There's no easy way to map from an ast.Expr to all the places that use them, so
 	// we use reflect to find all such references.
 	if len(badNils) > 0 {
-		exprType := reflect.TypeOf((*ast.Expr)(nil)).Elem()
-		exprSliceType := reflect.TypeOf(([]ast.Expr)(nil))
+		exprType := reflect.TypeFor[ast.Expr]()
+		exprSliceType := reflect.TypeFor[[]ast.Expr]()
 		walk(f, func(n any) {
 			if n == nil {
 				return