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| author | Eric Blake <eblake@redhat.com> | 2016-03-17 16:48:27 -0600 |
|---|---|---|
| committer | Markus Armbruster <armbru@redhat.com> | 2016-03-18 10:29:25 +0100 |
| commit | 972a110162677fe5155f68a718ec6e999cd059a7 (patch) | |
| tree | b261494c40c0493beb52aeb01e0794ac8ec2e5a5 | |
| parent | 29f6bd15eb8a55ed37b2a443f7275b3d134eb2b2 (diff) | |
| download | qemu-972a110162677fe5155f68a718ec6e999cd059a7.tar.gz | |
qapi: Fix command with named empty argument type
The generator special-cased
{ 'command':'foo', 'data': {} }
to avoid emitting a visitor variable, but failed to see that
{ 'struct':'NamedEmptyType, 'data': {} }
{ 'command':'foo', 'data':'NamedEmptyType' }
needs the same treatment. There, the generator happily generates a
visitor to get no arguments, and a visitor to destroy no arguments;
and the compiler isn't happy with that, as demonstrated by the updated
qapi-schema-test.json:
tests/test-qmp-marshal.c: In function ‘qmp_marshal_user_def_cmd0’:
tests/test-qmp-marshal.c:264:14: error: variable ‘v’ set but not used [-Werror=unused-but-set-variable]
Visitor *v;
^
No change to generated code except for the testsuite addition.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1458254921-17042-3-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
| -rw-r--r-- | scripts/qapi-commands.py | 4 | ||||
| -rw-r--r-- | tests/qapi-schema/qapi-schema-test.json | 2 | ||||
| -rw-r--r-- | tests/qapi-schema/qapi-schema-test.out | 2 | ||||
| -rw-r--r-- | tests/test-qmp-commands.c | 5 |
4 files changed, 11 insertions, 2 deletions
diff --git a/scripts/qapi-commands.py b/scripts/qapi-commands.py index edcbd10128..3784f33fcc 100644 --- a/scripts/qapi-commands.py +++ b/scripts/qapi-commands.py @@ -66,7 +66,7 @@ def gen_marshal_vars(arg_type, ret_type): ''', c_type=ret_type.c_type()) - if arg_type: + if arg_type and arg_type.members: ret += mcgen(''' QmpInputVisitor *qiv = qmp_input_visitor_new_strict(QOBJECT(args)); QapiDeallocVisitor *qdv; @@ -98,7 +98,7 @@ def gen_marshal_vars(arg_type, ret_type): def gen_marshal_input_visit(arg_type, dealloc=False): ret = '' - if not arg_type: + if not arg_type or not arg_type.members: return ret if dealloc: diff --git a/tests/qapi-schema/qapi-schema-test.json b/tests/qapi-schema/qapi-schema-test.json index 728659e68a..e72274811e 100644 --- a/tests/qapi-schema/qapi-schema-test.json +++ b/tests/qapi-schema/qapi-schema-test.json @@ -18,6 +18,8 @@ { 'struct': 'Empty1', 'data': { } } { 'struct': 'Empty2', 'base': 'Empty1', 'data': { } } +{ 'command': 'user_def_cmd0', 'data': 'Empty2', 'returns': 'Empty2' } + # for testing override of default naming heuristic { 'enum': 'QEnumTwo', 'prefix': 'QENUM_TWO', diff --git a/tests/qapi-schema/qapi-schema-test.out b/tests/qapi-schema/qapi-schema-test.out index f5e2a73c30..f53196105f 100644 --- a/tests/qapi-schema/qapi-schema-test.out +++ b/tests/qapi-schema/qapi-schema-test.out @@ -203,6 +203,8 @@ command guest-sync :obj-guest-sync-arg -> any gen=True success_response=True command user_def_cmd None -> None gen=True success_response=True +command user_def_cmd0 Empty2 -> Empty2 + gen=True success_response=True command user_def_cmd1 :obj-user_def_cmd1-arg -> None gen=True success_response=True command user_def_cmd2 :obj-user_def_cmd2-arg -> UserDefTwo diff --git a/tests/test-qmp-commands.c b/tests/test-qmp-commands.c index d6171f2d44..650ba4681f 100644 --- a/tests/test-qmp-commands.c +++ b/tests/test-qmp-commands.c @@ -13,6 +13,11 @@ void qmp_user_def_cmd(Error **errp) { } +Empty2 *qmp_user_def_cmd0(Error **errp) +{ + return g_new0(Empty2, 1); +} + void qmp_user_def_cmd1(UserDefOne * ud1, Error **errp) { } |