From: Rémy Oudompheng <oudomphe@phare.normalesup.org>
Date: Mon, 9 Jan 2012 20:54:31 +0000 (-0800)
Subject: text/template: handle panic values that are not errors.
X-Git-Tag: weekly.2012-01-15~117
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=f5d024a74695510fcb0890807849ec95253a56cd;p=gostls13.git

text/template: handle panic values that are not errors.

The recover code assumes that the panic() argument was
an error, but it is usually a simple string.
Fixes #2663.

R=golang-dev, r, r, gri
CC=golang-dev, remy
https://golang.org/cl/5527046
---

diff --git a/src/pkg/text/template/exec.go b/src/pkg/text/template/exec.go
index acb88afee3..2171b279be 100644
--- a/src/pkg/text/template/exec.go
+++ b/src/pkg/text/template/exec.go
@@ -78,10 +78,14 @@ func (s *state) error(err error) {
 func errRecover(errp *error) {
 	e := recover()
 	if e != nil {
-		if _, ok := e.(runtime.Error); ok {
+		switch err := e.(type) {
+		case runtime.Error:
+			panic(e)
+		case error:
+			*errp = err
+		default:
 			panic(e)
 		}
-		*errp = e.(error)
 	}
 }