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net/http: update Response.Trailer doc

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I updated this in the previous commit (https://golang.org/cl/17931)
but noticed a typo. and it still wasn't great.

The Go 1.5 text was too brief to know how to use it:

    // Trailer maps trailer keys to values, in the same
    // format as the header.

Change-Id: I33c49b6a4a7a3596735a4cc7865ad625809da900
Reviewed-on: https://go-review.googlesource.com/17932
Reviewed-by: Russ Cox <rsc@golang.org>
This commit is contained in:
Brad Fitzpatrick 2015-12-17 01:39:28 +00:00
parent 8350e06556
commit 64de502caa
1 changed files with 11 additions and 7 deletions
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18
src/net/http/response.go
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@ -72,14 +72,18 @@ type Response struct {
// ReadResponse nor Response.Write ever closes a connection.
Close bool
// Trailer maps trailer keys to values, in the same
// format as the header.
// Trailer maps trailer keys to values in the same
// format as Header.
//
// The Trailer initially contains only the server's
// pre-declared trailer keys, but with nil values. Trailer
// must not be access concurrently with Read calls on the
// Body. After Body.Read has returned io.EOF, Trailer can be read
// again and will contain any values sent by the server.
// The Trailer initially contains only nil values, one for
// each key specified in the server's "Trailer" header
// value. Those values are not added to Header.
//
// Trailer must not be accessed concurrently with Read calls
// on the Body.
//
// After Body.Read has returned io.EOF, Trailer will contain
// any trailer values sent by the server.
Trailer Header
// The Request that was sent to obtain this Response.