From: hopehook <hopehook.com@gmail.com>
Date: Thu, 1 Sep 2022 13:44:11 +0000 (+0800)
Subject: types2: use strings.Builder in infer.go
X-Git-Tag: go1.20rc1~1283
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=0592ce5f69f4149da643b61e6bb1163e6046401c;p=gostls13.git

types2: use strings.Builder in infer.go

Permissible now because go1.17 is used for bootstrapping.

Change-Id: Ic97b0706190c3eb907da69003bc94448c90e5af7
Reviewed-on: https://go-review.googlesource.com/c/go/+/427556
Run-TryBot: Robert Griesemer <gri@google.com>
Run-TryBot: hopehook <hopehook@golangcn.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Auto-Submit: Robert Griesemer <gri@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@google.com>
---

diff --git a/src/cmd/compile/internal/types2/infer.go b/src/cmd/compile/internal/types2/infer.go
index 8425cd6034..d88eef640a 100644
--- a/src/cmd/compile/internal/types2/infer.go
+++ b/src/cmd/compile/internal/types2/infer.go
@@ -7,9 +7,9 @@
 package types2
 
 import (
-	"bytes"
 	"cmd/compile/internal/syntax"
 	"fmt"
+	"strings"
 )
 
 const useConstraintTypeInference = true
@@ -338,8 +338,7 @@ func typeParamsString(list []*TypeParam) string {
 	}
 
 	// general case (n > 2)
-	// Would like to use strings.Builder but it's not available in Go 1.4.
-	var b bytes.Buffer
+	var b strings.Builder
 	for i, tname := range list[:n-1] {
 		if i > 0 {
 			b.WriteString(", ")