code review 71740043: net/http: minor fixes and optimization for Response.TLS

src/pkg/net/http/response.go

 // Copyright 2009 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
 // HTTP Response reading and parsing.
 
 package http
 
 import (
         "bufio"
@@ skipping 58 matching lines @@
 
         // Trailer maps trailer keys to values, in the same
         // format as the header.
         Trailer Header
 
         // The Request that was sent to obtain this Response.
         // Request's Body is nil (having already been consumed).
         // This is only populated for Client requests.
         Request *Request
 
-        // TLS allows information about the TLS connection on which the
-        // response was received. The Transport in this package sets the field
-        // for TLS-enabled connections before returning the Response otherwise
-        // it leaves the field nil.
+        // TLS contains information about the TLS connection on which the
+        // response was received. It is nil for unencrypted responses.
+        // The pointer is shared between responses and should not be
+        // modified.
         TLS *tls.ConnectionState
 }
 
 // Cookies parses and returns the cookies set in the Set-Cookie headers.
 func (r *Response) Cookies() []*Cookie {
         return readSetCookies(r.Header)
 }
 
 var ErrNoLocation = errors.New("http: no Location header in response")
 
@@ skipping 142 matching lines @@
 
         // Write body and trailer
         err = tw.WriteBody(w)
         if err != nil {
                 return err
         }
 
         // Success
         return nil
 }