tree bcae7f670c2d90d76de41b0f329b05a33b2f237e
parent 77b0a8cf996ff3872eaa73c089d272613e63204c
author Michael McGreevy <mcgreevy@golang.org> 1441608515 +1000
committer Michael McGreevy <mcgreevy@golang.org> 1443483039 +0000

all: add ForceSendFields support

Allow users to nominate fields that should be included in requests to
the server, regardless of field contents.  This makes it possible to
perform patch requests involving fields with emtpy values -- a common
use case.

This change will also enable immediate workarounds for APIs which expect
values to be present for particular fields in update requests (such as
those in #54).

The custom JSON marshaling code introduced here is applicable to both
update and patch payloads, and extends naturally to hierarchical
schemas.

Note: this change will result in non-deterministic ordering of fields in the JSON
representation of schemas, due to the intermediate use of a map.

Change-Id: I141cfabcbd500ca15b512cf17665344ba4a66887
Reviewed-on: https://code-review.googlesource.com/3386
Reviewed-by: Michael McGreevy <mcgreevy@golang.org>