Adds the .. qapi:object:: directive, object, and :qapi:obj:`name`
cross-referencing role. This directive is meant to document both structs
and unions.

As per usual, QAPI cross-referencing for types in the member field list
will be added in a forthcoming commit.

Signed-off-by: John Snow <jsnow@redhat.com>
---
 docs/sphinx/qapi_domain.py | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/docs/sphinx/qapi_domain.py b/docs/sphinx/qapi_domain.py
index d9c69af229d..fff5cca24cc 100644
--- a/docs/sphinx/qapi_domain.py
+++ b/docs/sphinx/qapi_domain.py
@@ -358,6 +358,10 @@ class QAPIEvent(QAPIObjectWithMembers):
     """Description of a QAPI Event."""
 
 
+class QAPIJSONObject(QAPIObjectWithMembers):
+    """Description of a QAPI Object: structs and unions."""
+
+
 class QAPIModule(SphinxDirective):
     """
     Directive to mark description of a new module.
@@ -522,6 +526,7 @@ class QAPIDomain(Domain):
         "command": ObjType(_("command"), "cmd", "any"),
         "event": ObjType(_("event"), "event", "any"),
         "enum": ObjType(_("enum"), "enum", "type", "any"),
+        "object": ObjType(_("object"), "obj", "type", "any"),
         "alternate": ObjType(_("alternate"), "alt", "type", "any"),
     }
 
@@ -532,6 +537,7 @@ class QAPIDomain(Domain):
         "command": QAPICommand,
         "event": QAPIEvent,
         "enum": QAPIEnum,
+        "object": QAPIJSONObject,
         "alternate": QAPIAlternate,
     }
 
@@ -543,6 +549,7 @@ class QAPIDomain(Domain):
         "cmd": QAPIXRefRole(),
         "event": QAPIXRefRole(),
         "enum": QAPIXRefRole(),
+        "obj": QAPIXRefRole(),  # specifically structs and unions.
         "alt": QAPIXRefRole(),
         # reference any data type (excludes modules, commands, events)
         "type": QAPIXRefRole(),
-- 
2.48.1