time: want Time.Format variant to not generate garbage

[bradfitz]

I want a version of time.Format that can either append to a []byte (like
http://golang.org/pkg/strconv/#AppendInt and friends) or write to an io.ByteWriter.

Generating the Date headers in the HTTP server is one of a dozen remaining sources of
garbage. I don't want a string.

[bradfitz]

Comment 2:

Labels changed: added performance.

[bradfitz]

Comment 3:

Labels changed: removed optimization.

[bradfitz]

Comment 4:

For after Go 1.1: https://golang.org/cl/8478044

Status changed to Started.

[bradfitz]

Comment 6:

Labels changed: added garbage.

[bradfitz]

Comment 7:

This issue was closed by revision 0af302f.

Status changed to Fixed.

[bradfitz]

Comment 8:

This issue was closed by revision 509a117.

[cespare]

Comment 9:

0d28fd55e721 was rolled back due to disagreement on
https://golang.org/cl/8478044.
Can we reopen this ticket? Should I open a new one?
Would it be productive for me to submit a new CL with the naming and parameter args
discussed in codereview? That is:
func (t Time) AppendFormat(dst []byte, layout string) []byte

[robpike]

Comment 10:

Unfixed, reopening ticket.
cespare: SGTM

Status changed to Accepted.

[cespare]

Comment 11:

Didn't see this until just now.
I've prepared https://golang.org/cl/133530044 which I guess I'll mail once the
tree reopens in a few months.

[griesemer]

Comment 12:

Labels changed: added repo-main.