docs/qapi-domain: add "Errors:" field lists

``:error: descr`` can now be used to document error conditions. The
format of the description is not defined here; so the ability to name
specific types is left to the document writer.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-ID: <20250311034303.75779-18-jsnow@redhat.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

1 files changed, 8 insertions, 1 deletions

diff --git a/docs/sphinx/qapi_domain.py b/docs/sphinx/qapi_domain.py
index 8ec4482..7535009 100644
--- a/docs/sphinx/qapi_domain.py
+++ b/docs/sphinx/qapi_domain.py
@@ -33,7 +33,7 @@ from sphinx.domains import (
 from sphinx.locale import _, __
 from sphinx.roles import XRefRole
 from sphinx.util import logging
-from sphinx.util.docfields import GroupedField, TypedField
+from sphinx.util.docfields import Field, GroupedField, TypedField
 from sphinx.util.nodes import make_id, make_refnode
 
 
@@ -294,6 +294,13 @@ class QAPICommand(QAPIObject):
                 names=("arg",),
                 can_collapse=False,
             ),
+            # :error: descr
+            Field(
+                "error",
+                label=_("Errors"),
+                names=("error", "errors"),
+                has_arg=False,
+            ),
         ]
     )