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qapi script: do not allow string discriminator

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Since enum based discriminators provide better type-safety and
ensure that future qapi additions do not forget to adjust dependent
unions, forbid using string as discriminator from now on.

Signed-off-by: Wenchao Xia <wenchaoqemu@gmail.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
This commit is contained in:
Wenchao Xia 2014-03-04 18:44:39 -08:00 • committed by Luiz Capitulino
parent 59ca664ef8
commit 5223070c47
12 changed files with 53 additions and 18 deletions
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10
tests/test-qmp-output-visitor.c
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@ -449,10 +449,11 @@ static void test_visitor_out_union_flat(TestOutputVisitorData *data,
Error *err = NULL;
UserDefFlatUnion *tmp = g_malloc0(sizeof(UserDefFlatUnion));
tmp->kind = USER_DEF_UNION_KIND_A;
tmp->a = g_malloc0(sizeof(UserDefA));
tmp->kind = ENUM_ONE_VALUE1;
tmp->string = g_strdup("str");
tmp->value1 = g_malloc0(sizeof(UserDefA));
/* TODO when generator bug is fixed: tmp->integer = 41; */
tmp->a->boolean = true;
tmp->value1->boolean = true;
visit_type_UserDefFlatUnion(data->ov, &tmp, NULL, &err);
g_assert(err == NULL);
@ -461,7 +462,8 @@ static void test_visitor_out_union_flat(TestOutputVisitorData *data,
g_assert(qobject_type(arg) == QTYPE_QDICT);
qdict = qobject_to_qdict(arg);
g_assert_cmpstr(qdict_get_str(qdict, "string"), ==, "a");
g_assert_cmpstr(qdict_get_str(qdict, "enum1"), ==, "value1");
g_assert_cmpstr(qdict_get_str(qdict, "string"), ==, "str");
/* TODO g_assert_cmpint(qdict_get_int(qdict, "integer"), ==, 41); */
g_assert_cmpint(qdict_get_bool(qdict, "boolean"), ==, true);