From c4953a62f90f90f1ab2ac07d5664dd515936835e Mon Sep 17 00:00:00 2001
From: =?utf8?q?=E5=96=9C=E6=AC=A2=E5=85=B0=E8=8A=B1=E5=B1=B1=E4=B8=98?=
 <csharpwz@outlook.com>
Date: Tue, 16 Apr 2019 15:08:32 +0000
Subject: [PATCH] context: simplify stringify with a type switch

Minor style change.

Change-Id: Ib30243a71a83de1a67d3d005bfdd1e04265fca1e
GitHub-Last-Rev: 9d654de10eaa6f01ece29790fb81bc41dfd61eaf
GitHub-Pull-Request: golang/go#31479
Reviewed-on: https://go-review.googlesource.com/c/go/+/172199
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Sameer Ajmani <sameer@golang.org>
---
 src/context/context.go | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/context/context.go b/src/context/context.go
index 77298f6531..ad67d2301d 100644
--- a/src/context/context.go
+++ b/src/context/context.go
@@ -497,10 +497,10 @@ type valueCtx struct {
 // want context depending on the unicode tables. This is only used by
 // *valueCtx.String().
 func stringify(v interface{}) string {
-	if s, ok := v.(stringer); ok {
+	switch s := v.(type) {
+	case stringer:
 		return s.String()
-	}
-	if s, ok := v.(string); ok {
+	case string:
 		return s
 	}
 	return "<not Stringer>"
-- 
2.48.1