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[PATCH 03/22] qapi: Convert simple union KeyValue to flat one
From: |
Markus Armbruster |
Subject: |
[PATCH 03/22] qapi: Convert simple union KeyValue to flat one |
Date: |
Mon, 13 Sep 2021 14:39:13 +0200 |
Simple unions predate flat unions. Having both complicates the QAPI
schema language and the QAPI generator. We haven't been using simple
unions in new code for a long time, because they are less flexible and
somewhat awkward on the wire.
To prepare for their removal, convert simple union KeyValue to an
equivalent flat one. Adds some boilerplate to the schema, which is a
bit ugly, but a lot easier to maintain than the simple union feature.
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
qapi/ui.json | 30 ++++++++++++++++++++++++++++--
1 file changed, 28 insertions(+), 2 deletions(-)
diff --git a/qapi/ui.json b/qapi/ui.json
index b2cf7a6759..a6b0dce876 100644
--- a/qapi/ui.json
+++ b/qapi/ui.json
@@ -824,6 +824,30 @@
'ac_home', 'ac_back', 'ac_forward', 'ac_refresh', 'ac_bookmarks',
'lang1', 'lang2' ] }
+##
+# @KeyValueKind:
+#
+# Since: 6.1
+##
+{ 'enum': 'KeyValueKind',
+ 'data': [ 'number', 'qcode' ] }
+
+##
+# @IntWrapper:
+#
+# Since: 6.1
+##
+{ 'struct': 'IntWrapper',
+ 'data': { 'data': 'int' } }
+
+##
+# @QKeyCodeWrapper:
+#
+# Since: 6.1
+##
+{ 'struct': 'QKeyCodeWrapper',
+ 'data': { 'data': 'QKeyCode' } }
+
##
# @KeyValue:
#
@@ -832,9 +856,11 @@
# Since: 1.3
##
{ 'union': 'KeyValue',
+ 'base': { 'type': 'KeyValueKind' },
+ 'discriminator': 'type',
'data': {
- 'number': 'int',
- 'qcode': 'QKeyCode' } }
+ 'number': 'IntWrapper',
+ 'qcode': 'QKeyCodeWrapper' } }
##
# @send-key:
--
2.31.1
- [PATCH 15/22] tests/qapi-schema: Wean off UserDefListUnion, (continued)
- [PATCH 20/22] tests/qapi-schema: Purge simple unions from tests, Markus Armbruster, 2021/09/13
- [PATCH 03/22] qapi: Convert simple union KeyValue to flat one,
Markus Armbruster <=
- [PATCH 07/22] qapi: Convert simple union ChardevBackend to flat one, Markus Armbruster, 2021/09/13
- [PATCH 17/22] tests/qapi-schema: Rewrite simple union TestIfUnion to be flat, Markus Armbruster, 2021/09/13
- [PATCH 09/22] qapi: Convert simple union ImageInfoSpecific to flat one, Markus Armbruster, 2021/09/13
- [PATCH 19/22] tests/qapi-schema: Drop simple union __org.qemu_x-Union1, Markus Armbruster, 2021/09/13