From: hopehook <hopehook.com@gmail.com>
Date: Thu, 1 Sep 2022 13:40:08 +0000 (+0800)
Subject: types2: use strings.Builder in errors.go
X-Git-Tag: go1.20rc1~1284
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=b2110bcdde636b77412778a8c1eab6e50163ca1c;p=gostls13.git

types2: use strings.Builder in errors.go

Permissible now because go1.17 is used for bootstrapping.

Change-Id: Ia6f314f9314eda1cc42002dcbdfa551196df76f0
Reviewed-on: https://go-review.googlesource.com/c/go/+/427554
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Run-TryBot: hopehook <hopehook@golangcn.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
---

diff --git a/src/cmd/compile/internal/types2/errors.go b/src/cmd/compile/internal/types2/errors.go
index 2a3e88a2fe..61d8953014 100644
--- a/src/cmd/compile/internal/types2/errors.go
+++ b/src/cmd/compile/internal/types2/errors.go
@@ -300,8 +300,7 @@ func posFor(at poser) syntax.Pos {
 
 // stripAnnotations removes internal (type) annotations from s.
 func stripAnnotations(s string) string {
-	// Would like to use strings.Builder but it's not available in Go 1.4.
-	var b bytes.Buffer
+	var b strings.Builder
 	for _, r := range s {
 		// strip #'s and subscript digits
 		if r < '₀' || '₀'+10 <= r { // '₀' == U+2080