qapi: Swap visit_* arguments for consistent 'name' placement

JSON uses "name":value, but many of our visitor interfaces were
called with visit_type_FOO(v, &value, name, errp).  This can be
a bit confusing to have to mentally swap the parameter order to
match JSON order.  It's particularly bad for visit_start_struct(),
where the 'name' parameter is smack in the middle of the
otherwise-related group of 'obj, kind, size' parameters! It's
time to do a global swap of the parameter ordering, so that the
'name' parameter is always immediately after the Visitor argument.

Additional reason in favor of the swap: the existing include/qjson.h
prefers listing 'name' first in json_prop_*(), and I have plans to
unify that file with the qapi visitors; listing 'name' first in
qapi will minimize churn to the (admittedly few) qjson.h clients.

Later patches will then fix docs, object.h, visitor-impl.h, and
those clients to match.

Done by first patching scripts/qapi*.py by hand to make generated
files do what I want, then by running the following Coccinelle
script to affect the rest of the code base:
 $ spatch --sp-file script `git grep -l '\bvisit_' -- '**/*.[ch]'`
I then had to apply some touchups (Coccinelle insisted on TAB
indentation in visitor.h, and botched the signature of
visit_type_enum() by rewriting 'const char *const strings[]' to
the syntactically invalid 'const char*const[] strings').  The
movement of parameters is sufficient to provoke compiler errors
if any callers were missed.

    // Part 1: Swap declaration order
    @@
    type TV, TErr, TObj, T1, T2;
    identifier OBJ, ARG1, ARG2;
    @@
     void visit_start_struct
    -(TV v, TObj OBJ, T1 ARG1, const char *name, T2 ARG2, TErr errp)
    +(TV v, const char *name, TObj OBJ, T1 ARG1, T2 ARG2, TErr errp)
     { ... }

    @@
    type bool, TV, T1;
    identifier ARG1;
    @@
     bool visit_optional
    -(TV v, T1 ARG1, const char *name)
    +(TV v, const char *name, T1 ARG1)
     { ... }

    @@
    type TV, TErr, TObj, T1;
    identifier OBJ, ARG1;
    @@
     void visit_get_next_type
    -(TV v, TObj OBJ, T1 ARG1, const char *name, TErr errp)
    +(TV v, const char *name, TObj OBJ, T1 ARG1, TErr errp)
     { ... }

    @@
    type TV, TErr, TObj, T1, T2;
    identifier OBJ, ARG1, ARG2;
    @@
     void visit_type_enum
    -(TV v, TObj OBJ, T1 ARG1, T2 ARG2, const char *name, TErr errp)
    +(TV v, const char *name, TObj OBJ, T1 ARG1, T2 ARG2, TErr errp)
     { ... }

    @@
    type TV, TErr, TObj;
    identifier OBJ;
    identifier VISIT_TYPE =~ "^visit_type_";
    @@
     void VISIT_TYPE
    -(TV v, TObj OBJ, const char *name, TErr errp)
    +(TV v, const char *name, TObj OBJ, TErr errp)
     { ... }

    // Part 2: swap caller order
    @@
    expression V, NAME, OBJ, ARG1, ARG2, ERR;
    identifier VISIT_TYPE =~ "^visit_type_";
    @@
    (
    -visit_start_struct(V, OBJ, ARG1, NAME, ARG2, ERR)
    +visit_start_struct(V, NAME, OBJ, ARG1, ARG2, ERR)
    |
    -visit_optional(V, ARG1, NAME)
    +visit_optional(V, NAME, ARG1)
    |
    -visit_get_next_type(V, OBJ, ARG1, NAME, ERR)
    +visit_get_next_type(V, NAME, OBJ, ARG1, ERR)
    |
    -visit_type_enum(V, OBJ, ARG1, ARG2, NAME, ERR)
    +visit_type_enum(V, NAME, OBJ, ARG1, ARG2, ERR)
    |
    -VISIT_TYPE(V, OBJ, NAME, ERR)
    +VISIT_TYPE(V, NAME, OBJ, ERR)
    )

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <1454075341-13658-19-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

9 files changed, 129 insertions, 129 deletions

diff --git a/tests/test-opts-visitor.c b/tests/test-opts-visitor.c
index 1c753d9824..9600b97012 100644
--- a/tests/test-opts-visitor.c
+++ b/tests/test-opts-visitor.c
@@ -44,7 +44,7 @@ setup_fixture(OptsVisitorFixture *f, gconstpointer test_data)
     g_assert(opts != NULL);
 
     ov = opts_visitor_new(opts);
-    visit_type_UserDefOptions(opts_get_visitor(ov), &f->userdef, NULL,
+    visit_type_UserDefOptions(opts_get_visitor(ov), NULL, &f->userdef,
                               &f->err);
     opts_visitor_cleanup(ov);
     qemu_opts_del(opts);
@@ -58,8 +58,8 @@ teardown_fixture(OptsVisitorFixture *f, gconstpointer test_data)
         QapiDeallocVisitor *dv;
 
         dv = qapi_dealloc_visitor_new();
-        visit_type_UserDefOptions(qapi_dealloc_get_visitor(dv), &f->userdef,
-                                  NULL, NULL);
+        visit_type_UserDefOptions(qapi_dealloc_get_visitor(dv), NULL,
+                                  &f->userdef, NULL);
         qapi_dealloc_visitor_cleanup(dv);
     }
     error_free(f->err);
diff --git a/tests/test-qdev-global-props.c b/tests/test-qdev-global-props.c
index 0be98355c0..e728611b31 100644
--- a/tests/test-qdev-global-props.c
+++ b/tests/test-qdev-global-props.c
@@ -124,7 +124,7 @@ static void prop1_accessor(Object *obj,
 {
     MyType *mt = DYNAMIC_TYPE(obj);
 
-    visit_type_uint32(v, &mt->prop1, name, errp);
+    visit_type_uint32(v, name, &mt->prop1, errp);
 }
 
 static void prop2_accessor(Object *obj,
@@ -135,7 +135,7 @@ static void prop2_accessor(Object *obj,
 {
     MyType *mt = DYNAMIC_TYPE(obj);
 
-    visit_type_uint32(v, &mt->prop2, name, errp);
+    visit_type_uint32(v, name, &mt->prop2, errp);
 }
 
 static void dynamic_instance_init(Object *obj)
diff --git a/tests/test-qmp-commands.c b/tests/test-qmp-commands.c
index 9f35b80a45..4d267b6a83 100644
--- a/tests/test-qmp-commands.c
+++ b/tests/test-qmp-commands.c
@@ -217,7 +217,7 @@ static void test_dealloc_partial(void)
         qdict_put_obj(ud2_dict, "string0", QOBJECT(qstring_from_str(text)));
 
         qiv = qmp_input_visitor_new(QOBJECT(ud2_dict));
-        visit_type_UserDefTwo(qmp_input_get_visitor(qiv), &ud2, NULL, &err);
+        visit_type_UserDefTwo(qmp_input_get_visitor(qiv), NULL, &ud2, &err);
         qmp_input_visitor_cleanup(qiv);
         QDECREF(ud2_dict);
     }
diff --git a/tests/test-qmp-input-strict.c b/tests/test-qmp-input-strict.c
index f1c2e3ba67..775ad39d93 100644
--- a/tests/test-qmp-input-strict.c
+++ b/tests/test-qmp-input-strict.c
@@ -98,7 +98,7 @@ static void test_validate_struct(TestInputVisitorData *data,
 
     v = validate_test_init(data, "{ 'integer': -42, 'boolean': true, 'string': 'foo' }");
 
-    visit_type_TestStruct(v, &p, NULL, &error_abort);
+    visit_type_TestStruct(v, NULL, &p, &error_abort);
     g_free(p->string);
     g_free(p);
 }
@@ -114,7 +114,7 @@ static void test_validate_struct_nested(TestInputVisitorData *data,
                            "'dict2': { 'userdef': { 'integer': 42, "
                            "'string': 'string' }, 'string': 'string2'}}}");
 
-    visit_type_UserDefTwo(v, &udp, NULL, &error_abort);
+    visit_type_UserDefTwo(v, NULL, &udp, &error_abort);
     qapi_free_UserDefTwo(udp);
 }
 
@@ -126,7 +126,7 @@ static void test_validate_list(TestInputVisitorData *data,
 
     v = validate_test_init(data, "[ { 'string': 'string0', 'integer': 42 }, { 'string': 'string1', 'integer': 43 }, { 'string': 'string2', 'integer': 44 } ]");
 
-    visit_type_UserDefOneList(v, &head, NULL, &error_abort);
+    visit_type_UserDefOneList(v, NULL, &head, &error_abort);
     qapi_free_UserDefOneList(head);
 }
 
@@ -138,7 +138,7 @@ static void test_validate_union_native_list(TestInputVisitorData *data,
 
     v = validate_test_init(data, "{ 'type': 'integer', 'data' : [ 1, 2 ] }");
 
-    visit_type_UserDefNativeListUnion(v, &tmp, NULL, &error_abort);
+    visit_type_UserDefNativeListUnion(v, NULL, &tmp, &error_abort);
     qapi_free_UserDefNativeListUnion(tmp);
 }
 
@@ -154,7 +154,7 @@ static void test_validate_union_flat(TestInputVisitorData *data,
                            "'string': 'str', "
                            "'boolean': true }");
 
-    visit_type_UserDefFlatUnion(v, &tmp, NULL, &error_abort);
+    visit_type_UserDefFlatUnion(v, NULL, &tmp, &error_abort);
     qapi_free_UserDefFlatUnion(tmp);
 }
 
@@ -166,7 +166,7 @@ static void test_validate_alternate(TestInputVisitorData *data,
 
     v = validate_test_init(data, "42");
 
-    visit_type_UserDefAlternate(v, &tmp, NULL, &error_abort);
+    visit_type_UserDefAlternate(v, NULL, &tmp, &error_abort);
     qapi_free_UserDefAlternate(tmp);
 }
 
@@ -179,7 +179,7 @@ static void test_validate_fail_struct(TestInputVisitorData *data,
 
     v = validate_test_init(data, "{ 'integer': -42, 'boolean': true, 'string': 'foo', 'extra': 42 }");
 
-    visit_type_TestStruct(v, &p, NULL, &err);
+    visit_type_TestStruct(v, NULL, &p, &err);
     error_free_or_abort(&err);
     if (p) {
         g_free(p->string);
@@ -196,7 +196,7 @@ static void test_validate_fail_struct_nested(TestInputVisitorData *data,
 
     v = validate_test_init(data, "{ 'string0': 'string0', 'dict1': { 'string1': 'string1', 'dict2': { 'userdef1': { 'integer': 42, 'string': 'string', 'extra': [42, 23, {'foo':'bar'}] }, 'string2': 'string2'}}}");
 
-    visit_type_UserDefTwo(v, &udp, NULL, &err);
+    visit_type_UserDefTwo(v, NULL, &udp, &err);
     error_free_or_abort(&err);
     qapi_free_UserDefTwo(udp);
 }
@@ -210,7 +210,7 @@ static void test_validate_fail_list(TestInputVisitorData *data,
 
     v = validate_test_init(data, "[ { 'string': 'string0', 'integer': 42 }, { 'string': 'string1', 'integer': 43 }, { 'string': 'string2', 'integer': 44, 'extra': 'ggg' } ]");
 
-    visit_type_UserDefOneList(v, &head, NULL, &err);
+    visit_type_UserDefOneList(v, NULL, &head, &err);
     error_free_or_abort(&err);
     qapi_free_UserDefOneList(head);
 }
@@ -225,7 +225,7 @@ static void test_validate_fail_union_native_list(TestInputVisitorData *data,
     v = validate_test_init(data,
                            "{ 'type': 'integer', 'data' : [ 'string' ] }");
 
-    visit_type_UserDefNativeListUnion(v, &tmp, NULL, &err);
+    visit_type_UserDefNativeListUnion(v, NULL, &tmp, &err);
     error_free_or_abort(&err);
     qapi_free_UserDefNativeListUnion(tmp);
 }
@@ -239,7 +239,7 @@ static void test_validate_fail_union_flat(TestInputVisitorData *data,
 
     v = validate_test_init(data, "{ 'string': 'c', 'integer': 41, 'boolean': true }");
 
-    visit_type_UserDefFlatUnion(v, &tmp, NULL, &err);
+    visit_type_UserDefFlatUnion(v, NULL, &tmp, &err);
     error_free_or_abort(&err);
     qapi_free_UserDefFlatUnion(tmp);
 }
@@ -254,7 +254,7 @@ static void test_validate_fail_union_flat_no_discrim(TestInputVisitorData *data,
     /* test situation where discriminator field ('enum1' here) is missing */
     v = validate_test_init(data, "{ 'integer': 42, 'string': 'c', 'string1': 'd', 'string2': 'e' }");
 
-    visit_type_UserDefFlatUnion2(v, &tmp, NULL, &err);
+    visit_type_UserDefFlatUnion2(v, NULL, &tmp, &err);
     error_free_or_abort(&err);
     qapi_free_UserDefFlatUnion2(tmp);
 }
@@ -268,7 +268,7 @@ static void test_validate_fail_alternate(TestInputVisitorData *data,
 
     v = validate_test_init(data, "3.14");
 
-    visit_type_UserDefAlternate(v, &tmp, NULL, &err);
+    visit_type_UserDefAlternate(v, NULL, &tmp, &err);
     error_free_or_abort(&err);
     qapi_free_UserDefAlternate(tmp);
 }
@@ -281,7 +281,7 @@ static void do_test_validate_qmp_introspect(TestInputVisitorData *data,
 
     v = validate_test_init_raw(data, schema_json);
 
-    visit_type_SchemaInfoList(v, &schema, NULL, &error_abort);
+    visit_type_SchemaInfoList(v, NULL, &schema, &error_abort);
     g_assert(schema);
 
     qapi_free_SchemaInfoList(schema);
diff --git a/tests/test-qmp-input-visitor.c b/tests/test-qmp-input-visitor.c
index b4a5bee6a5..f6bd408db3 100644
--- a/tests/test-qmp-input-visitor.c
+++ b/tests/test-qmp-input-visitor.c
@@ -93,7 +93,7 @@ static void test_visitor_in_int(TestInputVisitorData *data,
 
     v = visitor_input_test_init(data, "%" PRId64, value);
 
-    visit_type_int(v, &res, NULL, &error_abort);
+    visit_type_int(v, NULL, &res, &error_abort);
     g_assert_cmpint(res, ==, value);
 }
 
@@ -110,7 +110,7 @@ static void test_visitor_in_int_overflow(TestInputVisitorData *data,
      */
     v = visitor_input_test_init(data, "%f", DBL_MAX);
 
-    visit_type_int(v, &res, NULL, &err);
+    visit_type_int(v, NULL, &res, &err);
     error_free_or_abort(&err);
 }
 
@@ -122,7 +122,7 @@ static void test_visitor_in_bool(TestInputVisitorData *data,
 
     v = visitor_input_test_init(data, "true");
 
-    visit_type_bool(v, &res, NULL, &error_abort);
+    visit_type_bool(v, NULL, &res, &error_abort);
     g_assert_cmpint(res, ==, true);
 }
 
@@ -134,7 +134,7 @@ static void test_visitor_in_number(TestInputVisitorData *data,
 
     v = visitor_input_test_init(data, "%f", value);
 
-    visit_type_number(v, &res, NULL, &error_abort);
+    visit_type_number(v, NULL, &res, &error_abort);
     g_assert_cmpfloat(res, ==, value);
 }
 
@@ -146,7 +146,7 @@ static void test_visitor_in_string(TestInputVisitorData *data,
 
     v = visitor_input_test_init(data, "%s", value);
 
-    visit_type_str(v, &res, NULL, &error_abort);
+    visit_type_str(v, NULL, &res, &error_abort);
     g_assert_cmpstr(res, ==, value);
 
     g_free(res);
@@ -163,7 +163,7 @@ static void test_visitor_in_enum(TestInputVisitorData *data,
 
         v = visitor_input_test_init(data, "%s", EnumOne_lookup[i]);
 
-        visit_type_EnumOne(v, &res, NULL, &error_abort);
+        visit_type_EnumOne(v, NULL, &res, &error_abort);
         g_assert_cmpint(i, ==, res);
     }
 }
@@ -177,7 +177,7 @@ static void test_visitor_in_struct(TestInputVisitorData *data,
 
     v = visitor_input_test_init(data, "{ 'integer': -42, 'boolean': true, 'string': 'foo' }");
 
-    visit_type_TestStruct(v, &p, NULL, &error_abort);
+    visit_type_TestStruct(v, NULL, &p, &error_abort);
     g_assert_cmpint(p->integer, ==, -42);
     g_assert(p->boolean == true);
     g_assert_cmpstr(p->string, ==, "foo");
@@ -197,7 +197,7 @@ static void test_visitor_in_struct_nested(TestInputVisitorData *data,
                                 "'dict2': { 'userdef': { 'integer': 42, "
                                 "'string': 'string' }, 'string': 'string2'}}}");
 
-    visit_type_UserDefTwo(v, &udp, NULL, &error_abort);
+    visit_type_UserDefTwo(v, NULL, &udp, &error_abort);
 
     g_assert_cmpstr(udp->string0, ==, "string0");
     g_assert_cmpstr(udp->dict1->string1, ==, "string1");
@@ -218,7 +218,7 @@ static void test_visitor_in_list(TestInputVisitorData *data,
 
     v = visitor_input_test_init(data, "[ { 'string': 'string0', 'integer': 42 }, { 'string': 'string1', 'integer': 43 }, { 'string': 'string2', 'integer': 44 } ]");
 
-    visit_type_UserDefOneList(v, &head, NULL, &error_abort);
+    visit_type_UserDefOneList(v, NULL, &head, &error_abort);
     g_assert(head != NULL);
 
     for (i = 0, item = head; item; item = item->next, i++) {
@@ -234,7 +234,7 @@ static void test_visitor_in_list(TestInputVisitorData *data,
 
     /* An empty list is valid */
     v = visitor_input_test_init(data, "[]");
-    visit_type_UserDefOneList(v, &head, NULL, &error_abort);
+    visit_type_UserDefOneList(v, NULL, &head, &error_abort);
     g_assert(!head);
 }
 
@@ -250,14 +250,14 @@ static void test_visitor_in_any(TestInputVisitorData *data,
     QObject *qobj;
 
     v = visitor_input_test_init(data, "-42");
-    visit_type_any(v, &res, NULL, &error_abort);
+    visit_type_any(v, NULL, &res, &error_abort);
     qint = qobject_to_qint(res);
     g_assert(qint);
     g_assert_cmpint(qint_get_int(qint), ==, -42);
     qobject_decref(res);
 
     v = visitor_input_test_init(data, "{ 'integer': -42, 'boolean': true, 'string': 'foo' }");
-    visit_type_any(v, &res, NULL, &error_abort);
+    visit_type_any(v, NULL, &res, &error_abort);
     qdict = qobject_to_qdict(res);
     g_assert(qdict && qdict_size(qdict) == 3);
     qobj = qdict_get(qdict, "integer");
@@ -291,7 +291,7 @@ static void test_visitor_in_union_flat(TestInputVisitorData *data,
                                 "'string': 'str', "
                                 "'boolean': true }");
 
-    visit_type_UserDefFlatUnion(v, &tmp, NULL, &error_abort);
+    visit_type_UserDefFlatUnion(v, NULL, &tmp, &error_abort);
     g_assert_cmpint(tmp->enum1, ==, ENUM_ONE_VALUE1);
     g_assert_cmpstr(tmp->string, ==, "str");
     g_assert_cmpint(tmp->integer, ==, 41);
@@ -311,19 +311,19 @@ static void test_visitor_in_alternate(TestInputVisitorData *data,
     UserDefAlternate *tmp;
 
     v = visitor_input_test_init(data, "42");
-    visit_type_UserDefAlternate(v, &tmp, NULL, &error_abort);
+    visit_type_UserDefAlternate(v, NULL, &tmp, &error_abort);
     g_assert_cmpint(tmp->type, ==, QTYPE_QINT);
     g_assert_cmpint(tmp->u.i, ==, 42);
     qapi_free_UserDefAlternate(tmp);
 
     v = visitor_input_test_init(data, "'string'");
-    visit_type_UserDefAlternate(v, &tmp, NULL, &error_abort);
+    visit_type_UserDefAlternate(v, NULL, &tmp, &error_abort);
     g_assert_cmpint(tmp->type, ==, QTYPE_QSTRING);
     g_assert_cmpstr(tmp->u.s, ==, "string");
     qapi_free_UserDefAlternate(tmp);
 
     v = visitor_input_test_init(data, "false");
-    visit_type_UserDefAlternate(v, &tmp, NULL, &err);
+    visit_type_UserDefAlternate(v, NULL, &tmp, &err);
     error_free_or_abort(&err);
     qapi_free_UserDefAlternate(tmp);
 }
@@ -343,36 +343,36 @@ static void test_visitor_in_alternate_number(TestInputVisitorData *data,
     /* Parsing an int */
 
     v = visitor_input_test_init(data, "42");
-    visit_type_AltStrBool(v, &asb, NULL, &err);
+    visit_type_AltStrBool(v, NULL, &asb, &err);
     error_free_or_abort(&err);
     qapi_free_AltStrBool(asb);
 
     v = visitor_input_test_init(data, "42");
-    visit_type_AltStrNum(v, &asn, NULL, &error_abort);
+    visit_type_AltStrNum(v, NULL, &asn, &error_abort);
     g_assert_cmpint(asn->type, ==, QTYPE_QFLOAT);
     g_assert_cmpfloat(asn->u.n, ==, 42);
     qapi_free_AltStrNum(asn);
 
     v = visitor_input_test_init(data, "42");
-    visit_type_AltNumStr(v, &ans, NULL, &error_abort);
+    visit_type_AltNumStr(v, NULL, &ans, &error_abort);
     g_assert_cmpint(ans->type, ==, QTYPE_QFLOAT);
     g_assert_cmpfloat(ans->u.n, ==, 42);
     qapi_free_AltNumStr(ans);
 
     v = visitor_input_test_init(data, "42");
-    visit_type_AltStrInt(v, &asi, NULL, &error_abort);
+    visit_type_AltStrInt(v, NULL, &asi, &error_abort);
     g_assert_cmpint(asi->type, ==, QTYPE_QINT);
     g_assert_cmpint(asi->u.i, ==, 42);
     qapi_free_AltStrInt(asi);
 
     v = visitor_input_test_init(data, "42");
-    visit_type_AltIntNum(v, &ain, NULL, &error_abort);
+    visit_type_AltIntNum(v, NULL, &ain, &error_abort);
     g_assert_cmpint(ain->type, ==, QTYPE_QINT);
     g_assert_cmpint(ain->u.i, ==, 42);
     qapi_free_AltIntNum(ain);
 
     v = visitor_input_test_init(data, "42");
-    visit_type_AltNumInt(v, &ani, NULL, &error_abort);
+    visit_type_AltNumInt(v, NULL, &ani, &error_abort);
     g_assert_cmpint(ani->type, ==, QTYPE_QINT);
     g_assert_cmpint(ani->u.i, ==, 42);
     qapi_free_AltNumInt(ani);
@@ -380,35 +380,35 @@ static void test_visitor_in_alternate_number(TestInputVisitorData *data,
     /* Parsing a double */
 
     v = visitor_input_test_init(data, "42.5");
-    visit_type_AltStrBool(v, &asb, NULL, &err);
+    visit_type_AltStrBool(v, NULL, &asb, &err);
     error_free_or_abort(&err);
     qapi_free_AltStrBool(asb);
 
     v = visitor_input_test_init(data, "42.5");
-    visit_type_AltStrNum(v, &asn, NULL, &error_abort);
+    visit_type_AltStrNum(v, NULL, &asn, &error_abort);
     g_assert_cmpint(asn->type, ==, QTYPE_QFLOAT);
     g_assert_cmpfloat(asn->u.n, ==, 42.5);
     qapi_free_AltStrNum(asn);
 
     v = visitor_input_test_init(data, "42.5");
-    visit_type_AltNumStr(v, &ans, NULL, &error_abort);
+    visit_type_AltNumStr(v, NULL, &ans, &error_abort);
     g_assert_cmpint(ans->type, ==, QTYPE_QFLOAT);
     g_assert_cmpfloat(ans->u.n, ==, 42.5);
     qapi_free_AltNumStr(ans);
 
     v = visitor_input_test_init(data, "42.5");
-    visit_type_AltStrInt(v, &asi, NULL, &err);
+    visit_type_AltStrInt(v, NULL, &asi, &err);
     error_free_or_abort(&err);
     qapi_free_AltStrInt(asi);
 
     v = visitor_input_test_init(data, "42.5");
-    visit_type_AltIntNum(v, &ain, NULL, &error_abort);
+    visit_type_AltIntNum(v, NULL, &ain, &error_abort);
     g_assert_cmpint(ain->type, ==, QTYPE_QFLOAT);
     g_assert_cmpfloat(ain->u.n, ==, 42.5);
     qapi_free_AltIntNum(ain);
 
     v = visitor_input_test_init(data, "42.5");
-    visit_type_AltNumInt(v, &ani, NULL, &error_abort);
+    visit_type_AltNumInt(v, NULL, &ani, &error_abort);
     g_assert_cmpint(ani->type, ==, QTYPE_QFLOAT);
     g_assert_cmpfloat(ani->u.n, ==, 42.5);
     qapi_free_AltNumInt(ani);
@@ -435,7 +435,7 @@ static void test_native_list_integer_helper(TestInputVisitorData *data,
                            gstr_list->str);
     v = visitor_input_test_init_raw(data,  gstr_union->str);
 
-    visit_type_UserDefNativeListUnion(v, &cvalue, NULL, &error_abort);
+    visit_type_UserDefNativeListUnion(v, NULL, &cvalue, &error_abort);
     g_assert(cvalue != NULL);
     g_assert_cmpint(cvalue->type, ==, kind);
 
@@ -596,7 +596,7 @@ static void test_visitor_in_native_list_bool(TestInputVisitorData *data,
                            gstr_list->str);
     v = visitor_input_test_init_raw(data,  gstr_union->str);
 
-    visit_type_UserDefNativeListUnion(v, &cvalue, NULL, &error_abort);
+    visit_type_UserDefNativeListUnion(v, NULL, &cvalue, &error_abort);
     g_assert(cvalue != NULL);
     g_assert_cmpint(cvalue->type, ==, USER_DEF_NATIVE_LIST_UNION_KIND_BOOLEAN);
 
@@ -629,7 +629,7 @@ static void test_visitor_in_native_list_string(TestInputVisitorData *data,
                            gstr_list->str);
     v = visitor_input_test_init_raw(data,  gstr_union->str);
 
-    visit_type_UserDefNativeListUnion(v, &cvalue, NULL, &error_abort);
+    visit_type_UserDefNativeListUnion(v, NULL, &cvalue, &error_abort);
     g_assert(cvalue != NULL);
     g_assert_cmpint(cvalue->type, ==, USER_DEF_NATIVE_LIST_UNION_KIND_STRING);
 
@@ -666,7 +666,7 @@ static void test_visitor_in_native_list_number(TestInputVisitorData *data,
                            gstr_list->str);
     v = visitor_input_test_init_raw(data,  gstr_union->str);
 
-    visit_type_UserDefNativeListUnion(v, &cvalue, NULL, &error_abort);
+    visit_type_UserDefNativeListUnion(v, NULL, &cvalue, &error_abort);
     g_assert(cvalue != NULL);
     g_assert_cmpint(cvalue->type, ==, USER_DEF_NATIVE_LIST_UNION_KIND_NUMBER);
 
@@ -706,7 +706,7 @@ static void test_visitor_in_errors(TestInputVisitorData *data,
     v = visitor_input_test_init(data, "{ 'integer': false, 'boolean': 'foo', "
                                 "'string': -42 }");
 
-    visit_type_TestStruct(v, &p, NULL, &err);
+    visit_type_TestStruct(v, NULL, &p, &err);
     error_free_or_abort(&err);
     /* FIXME - a failed parse should not leave a partially-allocated p
      * for us to clean up; this could cause callers to leak memory. */
@@ -716,7 +716,7 @@ static void test_visitor_in_errors(TestInputVisitorData *data,
     g_free(p);
 
     v = visitor_input_test_init(data, "[ '1', '2', false, '3' ]");
-    visit_type_strList(v, &q, NULL, &err);
+    visit_type_strList(v, NULL, &q, &err);
     error_free_or_abort(&err);
     assert(q);
     qapi_free_strList(q);
@@ -734,35 +734,35 @@ static void test_visitor_in_wrong_type(TestInputVisitorData *data,
     /* Make sure arrays and structs cannot be confused */
 
     v = visitor_input_test_init(data, "[]");
-    visit_type_TestStruct(v, &p, NULL, &err);
+    visit_type_TestStruct(v, NULL, &p, &err);
     error_free_or_abort(&err);
     g_assert(!p);
 
     v = visitor_input_test_init(data, "{}");
-    visit_type_strList(v, &q, NULL, &err);
+    visit_type_strList(v, NULL, &q, &err);
     error_free_or_abort(&err);
     assert(!q);
 
     /* Make sure primitives and struct cannot be confused */
 
     v = visitor_input_test_init(data, "1");
-    visit_type_TestStruct(v, &p, NULL, &err);
+    visit_type_TestStruct(v, NULL, &p, &err);
     error_free_or_abort(&err);
     g_assert(!p);
 
     v = visitor_input_test_init(data, "{}");
-    visit_type_int(v, &i, NULL, &err);
+    visit_type_int(v, NULL, &i, &err);
     error_free_or_abort(&err);
 
     /* Make sure primitives and arrays cannot be confused */
 
     v = visitor_input_test_init(data, "1");
-    visit_type_strList(v, &q, NULL, &err);
+    visit_type_strList(v, NULL, &q, &err);
     error_free_or_abort(&err);
     assert(!q);
 
     v = visitor_input_test_init(data, "[]");
-    visit_type_int(v, &i, NULL, &err);
+    visit_type_int(v, NULL, &i, &err);
     error_free_or_abort(&err);
 }
 
diff --git a/tests/test-qmp-output-visitor.c b/tests/test-qmp-output-visitor.c
index 30784424e4..4df94bcb59 100644
--- a/tests/test-qmp-output-visitor.c
+++ b/tests/test-qmp-output-visitor.c
@@ -47,7 +47,7 @@ static void test_visitor_out_int(TestOutputVisitorData *data,
     int64_t value = -42;
     QObject *obj;
 
-    visit_type_int(data->ov, &value, NULL, &error_abort);
+    visit_type_int(data->ov, NULL, &value, &error_abort);
 
     obj = qmp_output_get_qobject(data->qov);
     g_assert(obj != NULL);
@@ -63,7 +63,7 @@ static void test_visitor_out_bool(TestOutputVisitorData *data,
     bool value = true;
     QObject *obj;
 
-    visit_type_bool(data->ov, &value, NULL, &error_abort);
+    visit_type_bool(data->ov, NULL, &value, &error_abort);
 
     obj = qmp_output_get_qobject(data->qov);
     g_assert(obj != NULL);
@@ -79,7 +79,7 @@ static void test_visitor_out_number(TestOutputVisitorData *data,
     double value = 3.14;
     QObject *obj;
 
-    visit_type_number(data->ov, &value, NULL, &error_abort);
+    visit_type_number(data->ov, NULL, &value, &error_abort);
 
     obj = qmp_output_get_qobject(data->qov);
     g_assert(obj != NULL);
@@ -95,7 +95,7 @@ static void test_visitor_out_string(TestOutputVisitorData *data,
     char *string = (char *) "Q E M U";
     QObject *obj;
 
-    visit_type_str(data->ov, &string, NULL, &error_abort);
+    visit_type_str(data->ov, NULL, &string, &error_abort);
 
     obj = qmp_output_get_qobject(data->qov);
     g_assert(obj != NULL);
@@ -112,7 +112,7 @@ static void test_visitor_out_no_string(TestOutputVisitorData *data,
     QObject *obj;
 
     /* A null string should return "" */
-    visit_type_str(data->ov, &string, NULL, &error_abort);
+    visit_type_str(data->ov, NULL, &string, &error_abort);
 
     obj = qmp_output_get_qobject(data->qov);
     g_assert(obj != NULL);
@@ -129,7 +129,7 @@ static void test_visitor_out_enum(TestOutputVisitorData *data,
     EnumOne i;
 
     for (i = 0; i < ENUM_ONE__MAX; i++) {
-        visit_type_EnumOne(data->ov, &i, "unused", &error_abort);
+        visit_type_EnumOne(data->ov, "unused", &i, &error_abort);
 
         obj = qmp_output_get_qobject(data->qov);
         g_assert(obj != NULL);
@@ -148,7 +148,7 @@ static void test_visitor_out_enum_errors(TestOutputVisitorData *data,
 
     for (i = 0; i < ARRAY_SIZE(bad_values) ; i++) {
         err = NULL;
-        visit_type_EnumOne(data->ov, &bad_values[i], "unused", &err);
+        visit_type_EnumOne(data->ov, "unused", &bad_values[i], &err);
         g_assert(err);
         error_free(err);
     }
@@ -165,7 +165,7 @@ static void test_visitor_out_struct(TestOutputVisitorData *data,
     QObject *obj;
     QDict *qdict;
 
-    visit_type_TestStruct(data->ov, &p, NULL, &error_abort);
+    visit_type_TestStruct(data->ov, NULL, &p, &error_abort);
 
     obj = qmp_output_get_qobject(data->qov);
     g_assert(obj != NULL);
@@ -210,7 +210,7 @@ static void test_visitor_out_struct_nested(TestOutputVisitorData *data,
     ud2->dict1->dict3->userdef->integer = value;
     ud2->dict1->dict3->string = g_strdup(strings[3]);
 
-    visit_type_UserDefTwo(data->ov, &ud2, "unused", &error_abort);
+    visit_type_UserDefTwo(data->ov, "unused", &ud2, &error_abort);
 
     obj = qmp_output_get_qobject(data->qov);
     g_assert(obj != NULL);
@@ -257,7 +257,7 @@ static void test_visitor_out_struct_errors(TestOutputVisitorData *data,
         err = NULL;
         u.has_enum1 = true;
         u.enum1 = bad_values[i];
-        visit_type_UserDefOne(data->ov, &pu, "unused", &err);
+        visit_type_UserDefOne(data->ov, "unused", &pu, &err);
         g_assert(err);
         error_free(err);
     }
@@ -289,7 +289,7 @@ static void test_visitor_out_list(TestOutputVisitorData *data,
         head = p;
     }
 
-    visit_type_TestStructList(data->ov, &head, NULL, &error_abort);
+    visit_type_TestStructList(data->ov, NULL, &head, &error_abort);
 
     obj = qmp_output_get_qobject(data->qov);
     g_assert(obj != NULL);
@@ -356,7 +356,7 @@ static void test_visitor_out_any(TestOutputVisitorData *data,
     QObject *obj;
 
     qobj = QOBJECT(qint_from_int(-42));
-    visit_type_any(data->ov, &qobj, NULL, &error_abort);
+    visit_type_any(data->ov, NULL, &qobj, &error_abort);
     obj = qmp_output_get_qobject(data->qov);
     g_assert(obj != NULL);
     g_assert(qobject_type(obj) == QTYPE_QINT);
@@ -369,7 +369,7 @@ static void test_visitor_out_any(TestOutputVisitorData *data,
     qdict_put(qdict, "boolean", qbool_from_bool(true));
     qdict_put(qdict, "string", qstring_from_str("foo"));
     qobj = QOBJECT(qdict);
-    visit_type_any(data->ov, &qobj, NULL, &error_abort);
+    visit_type_any(data->ov, NULL, &qobj, &error_abort);
     qobject_decref(qobj);
     obj = qmp_output_get_qobject(data->qov);
     g_assert(obj != NULL);
@@ -406,7 +406,7 @@ static void test_visitor_out_union_flat(TestOutputVisitorData *data,
     tmp->integer = 41;
     tmp->u.value1->boolean = true;
 
-    visit_type_UserDefFlatUnion(data->ov, &tmp, NULL, &error_abort);
+    visit_type_UserDefFlatUnion(data->ov, NULL, &tmp, &error_abort);
     arg = qmp_output_get_qobject(data->qov);
 
     g_assert(qobject_type(arg) == QTYPE_QDICT);
@@ -431,7 +431,7 @@ static void test_visitor_out_alternate(TestOutputVisitorData *data,
     tmp->type = QTYPE_QINT;
     tmp->u.i = 42;
 
-    visit_type_UserDefAlternate(data->ov, &tmp, NULL, &error_abort);
+    visit_type_UserDefAlternate(data->ov, NULL, &tmp, &error_abort);
     arg = qmp_output_get_qobject(data->qov);
 
     g_assert(qobject_type(arg) == QTYPE_QINT);
@@ -444,7 +444,7 @@ static void test_visitor_out_alternate(TestOutputVisitorData *data,
     tmp->type = QTYPE_QSTRING;
     tmp->u.s = g_strdup("hello");
 
-    visit_type_UserDefAlternate(data->ov, &tmp, NULL, &error_abort);
+    visit_type_UserDefAlternate(data->ov, NULL, &tmp, &error_abort);
     arg = qmp_output_get_qobject(data->qov);
 
     g_assert(qobject_type(arg) == QTYPE_QSTRING);
@@ -690,7 +690,7 @@ static void test_native_list(TestOutputVisitorData *data,
     cvalue->type = kind;
     init_native_list(cvalue);
 
-    visit_type_UserDefNativeListUnion(data->ov, &cvalue, NULL, &error_abort);
+    visit_type_UserDefNativeListUnion(data->ov, NULL, &cvalue, &error_abort);
 
     obj = qmp_output_get_qobject(data->qov);
     check_native_list(obj, cvalue->type);
diff --git a/tests/test-string-input-visitor.c b/tests/test-string-input-visitor.c
index 8e3433e0c7..d99498d098 100644
--- a/tests/test-string-input-visitor.c
+++ b/tests/test-string-input-visitor.c
@@ -59,7 +59,7 @@ static void test_visitor_in_int(TestInputVisitorData *data,
 
     v = visitor_input_test_init(data, "-42");
 
-    visit_type_int(v, &res, NULL, &err);
+    visit_type_int(v, NULL, &res, &err);
     g_assert(!err);
     g_assert_cmpint(res, ==, value);
 }
@@ -74,7 +74,7 @@ static void test_visitor_in_intList(TestInputVisitorData *data,
 
     v = visitor_input_test_init(data, "1,2,0,2-4,20,5-9,1-8");
 
-    visit_type_int16List(v, &res, NULL, &error_abort);
+    visit_type_int16List(v, NULL, &res, &error_abort);
     tmp = res;
     while (i < sizeof(value) / sizeof(value[0])) {
         g_assert(tmp);
@@ -100,42 +100,42 @@ static void test_visitor_in_bool(TestInputVisitorData *data,
 
     v = visitor_input_test_init(data, "true");
 
-    visit_type_bool(v, &res, NULL, &err);
+    visit_type_bool(v, NULL, &res, &err);
     g_assert(!err);
     g_assert_cmpint(res, ==, true);
     visitor_input_teardown(data, unused);
 
     v = visitor_input_test_init(data, "yes");
 
-    visit_type_bool(v, &res, NULL, &err);
+    visit_type_bool(v, NULL, &res, &err);
     g_assert(!err);
     g_assert_cmpint(res, ==, true);
     visitor_input_teardown(data, unused);
 
     v = visitor_input_test_init(data, "on");
 
-    visit_type_bool(v, &res, NULL, &err);
+    visit_type_bool(v, NULL, &res, &err);
     g_assert(!err);
     g_assert_cmpint(res, ==, true);
     visitor_input_teardown(data, unused);
 
     v = visitor_input_test_init(data, "false");
 
-    visit_type_bool(v, &res, NULL, &err);
+    visit_type_bool(v, NULL, &res, &err);
     g_assert(!err);
     g_assert_cmpint(res, ==, false);
     visitor_input_teardown(data, unused);
 
     v = visitor_input_test_init(data, "no");
 
-    visit_type_bool(v, &res, NULL, &err);
+    visit_type_bool(v, NULL, &res, &err);
     g_assert(!err);
     g_assert_cmpint(res, ==, false);
     visitor_input_teardown(data, unused);
 
     v = visitor_input_test_init(data, "off");
 
-    visit_type_bool(v, &res, NULL, &err);
+    visit_type_bool(v, NULL, &res, &err);
     g_assert(!err);
     g_assert_cmpint(res, ==, false);
 }
@@ -149,7 +149,7 @@ static void test_visitor_in_number(TestInputVisitorData *data,
 
     v = visitor_input_test_init(data, "3.14");
 
-    visit_type_number(v, &res, NULL, &err);
+    visit_type_number(v, NULL, &res, &err);
     g_assert(!err);
     g_assert_cmpfloat(res, ==, value);
 }
@@ -163,7 +163,7 @@ static void test_visitor_in_string(TestInputVisitorData *data,
 
     v = visitor_input_test_init(data, value);
 
-    visit_type_str(v, &res, NULL, &err);
+    visit_type_str(v, NULL, &res, &err);
     g_assert(!err);
     g_assert_cmpstr(res, ==, value);
 
@@ -182,7 +182,7 @@ static void test_visitor_in_enum(TestInputVisitorData *data,
 
         v = visitor_input_test_init(data, EnumOne_lookup[i]);
 
-        visit_type_EnumOne(v, &res, NULL, &err);
+        visit_type_EnumOne(v, NULL, &res, &err);
         g_assert(!err);
         g_assert_cmpint(i, ==, res);
 
@@ -220,29 +220,29 @@ static void test_visitor_in_fuzz(TestInputVisitorData *data,
         }
 
         v = visitor_input_test_init(data, buf);
-        visit_type_int(v, &ires, NULL, NULL);
+        visit_type_int(v, NULL, &ires, NULL);
         visitor_input_teardown(data, NULL);
 
         v = visitor_input_test_init(data, buf);
-        visit_type_intList(v, &ilres, NULL, NULL);
+        visit_type_intList(v, NULL, &ilres, NULL);
         visitor_input_teardown(data, NULL);
 
         v = visitor_input_test_init(data, buf);
-        visit_type_bool(v, &bres, NULL, NULL);
+        visit_type_bool(v, NULL, &bres, NULL);
         visitor_input_teardown(data, NULL);
 
         v = visitor_input_test_init(data, buf);
-        visit_type_number(v, &nres, NULL, NULL);
+        visit_type_number(v, NULL, &nres, NULL);
         visitor_input_teardown(data, NULL);
 
         v = visitor_input_test_init(data, buf);
         sres = NULL;
-        visit_type_str(v, &sres, NULL, NULL);
+        visit_type_str(v, NULL, &sres, NULL);
         g_free(sres);
         visitor_input_teardown(data, NULL);
 
         v = visitor_input_test_init(data, buf);
-        visit_type_EnumOne(v, &eres, NULL, NULL);
+        visit_type_EnumOne(v, NULL, &eres, NULL);
         visitor_input_teardown(data, NULL);
     }
 }
diff --git a/tests/test-string-output-visitor.c b/tests/test-string-output-visitor.c
index 7aecdfcefb..4f4450fe70 100644
--- a/tests/test-string-output-visitor.c
+++ b/tests/test-string-output-visitor.c
@@ -61,7 +61,7 @@ static void test_visitor_out_int(TestOutputVisitorData *data,
     Error *err = NULL;
     char *str;
 
-    visit_type_int(data->ov, &value, NULL, &err);
+    visit_type_int(data->ov, NULL, &value, &err);
     g_assert(!err);
 
     str = string_output_get_string(data->sov);
@@ -90,7 +90,7 @@ static void test_visitor_out_intList(TestOutputVisitorData *data,
         tmp = &(*tmp)->next;
     }
 
-    visit_type_intList(data->ov, &list, NULL, &err);
+    visit_type_intList(data->ov, NULL, &list, &err);
     g_assert(err == NULL);
 
     str = string_output_get_string(data->sov);
@@ -120,7 +120,7 @@ static void test_visitor_out_bool(TestOutputVisitorData *data,
     bool value = true;
     char *str;
 
-    visit_type_bool(data->ov, &value, NULL, &err);
+    visit_type_bool(data->ov, NULL, &value, &err);
     g_assert(!err);
 
     str = string_output_get_string(data->sov);
@@ -136,7 +136,7 @@ static void test_visitor_out_number(TestOutputVisitorData *data,
     Error *err = NULL;
     char *str;
 
-    visit_type_number(data->ov, &value, NULL, &err);
+    visit_type_number(data->ov, NULL, &value, &err);
     g_assert(!err);
 
     str = string_output_get_string(data->sov);
@@ -153,7 +153,7 @@ static void test_visitor_out_string(TestOutputVisitorData *data,
     Error *err = NULL;
     char *str;
 
-    visit_type_str(data->ov, &string, NULL, &err);
+    visit_type_str(data->ov, NULL, &string, &err);
     g_assert(!err);
 
     str = string_output_get_string(data->sov);
@@ -174,7 +174,7 @@ static void test_visitor_out_no_string(TestOutputVisitorData *data,
     char *str;
 
     /* A null string should return "" */
-    visit_type_str(data->ov, &string, NULL, &err);
+    visit_type_str(data->ov, NULL, &string, &err);
     g_assert(!err);
 
     str = string_output_get_string(data->sov);
@@ -197,7 +197,7 @@ static void test_visitor_out_enum(TestOutputVisitorData *data,
     for (i = 0; i < ENUM_ONE__MAX; i++) {
         char *str_human;
 
-        visit_type_EnumOne(data->ov, &i, "unused", &err);
+        visit_type_EnumOne(data->ov, "unused", &i, &err);
         g_assert(!err);
 
         str_human = g_strdup_printf("\"%s\"", EnumOne_lookup[i]);
@@ -222,7 +222,7 @@ static void test_visitor_out_enum_errors(TestOutputVisitorData *data,
 
     for (i = 0; i < ARRAY_SIZE(bad_values) ; i++) {
         err = NULL;
-        visit_type_EnumOne(data->ov, &bad_values[i], "unused", &err);
+        visit_type_EnumOne(data->ov, "unused", &bad_values[i], &err);
         g_assert(err);
         error_free(err);
     }
diff --git a/tests/test-visitor-serialization.c b/tests/test-visitor-serialization.c
index 9f67f9e003..f74a6df97b 100644
--- a/tests/test-visitor-serialization.c
+++ b/tests/test-visitor-serialization.c
@@ -101,40 +101,40 @@ static void visit_primitive_type(Visitor *v, void **native, Error **errp)
     PrimitiveType *pt = *native;
     switch(pt->type) {
     case PTYPE_STRING:
-        visit_type_str(v, (char **)&pt->value.string, NULL, errp);
+        visit_type_str(v, NULL, (char **)&pt->value.string, errp);
         break;
     case PTYPE_BOOLEAN:
-        visit_type_bool(v, &pt->value.boolean, NULL, errp);
+        visit_type_bool(v, NULL, &pt->value.boolean, errp);
         break;
     case PTYPE_NUMBER:
-        visit_type_number(v, &pt->value.number, NULL, errp);
+        visit_type_number(v, NULL, &pt->value.number, errp);
         break;
     case PTYPE_INTEGER:
-        visit_type_int(v, &pt->value.integer, NULL, errp);
+        visit_type_int(v, NULL, &pt->value.integer, errp);
         break;
     case PTYPE_U8:
-        visit_type_uint8(v, &pt->value.u8, NULL, errp);
+        visit_type_uint8(v, NULL, &pt->value.u8, errp);
         break;
     case PTYPE_U16:
-        visit_type_uint16(v, &pt->value.u16, NULL, errp);
+        visit_type_uint16(v, NULL, &pt->value.u16, errp);
         break;
     case PTYPE_U32:
-        visit_type_uint32(v, &pt->value.u32, NULL, errp);
+        visit_type_uint32(v, NULL, &pt->value.u32, errp);
         break;
     case PTYPE_U64:
-        visit_type_uint64(v, &pt->value.u64, NULL, errp);
+        visit_type_uint64(v, NULL, &pt->value.u64, errp);
         break;
     case PTYPE_S8:
-        visit_type_int8(v, &pt->value.s8, NULL, errp);
+        visit_type_int8(v, NULL, &pt->value.s8, errp);
         break;
     case PTYPE_S16:
-        visit_type_int16(v, &pt->value.s16, NULL, errp);
+        visit_type_int16(v, NULL, &pt->value.s16, errp);
         break;
     case PTYPE_S32:
-        visit_type_int32(v, &pt->value.s32, NULL, errp);
+        visit_type_int32(v, NULL, &pt->value.s32, errp);
         break;
     case PTYPE_S64:
-        visit_type_int64(v, &pt->value.s64, NULL, errp);
+        visit_type_int64(v, NULL, &pt->value.s64, errp);
         break;
     case PTYPE_EOL:
         g_assert_not_reached();
@@ -146,40 +146,40 @@ static void visit_primitive_list(Visitor *v, void **native, Error **errp)
     PrimitiveList *pl = *native;
     switch (pl->type) {
     case PTYPE_STRING:
-        visit_type_strList(v, &pl->value.strings, NULL, errp);
+        visit_type_strList(v, NULL, &pl->value.strings, errp);
         break;
     case PTYPE_BOOLEAN:
-        visit_type_boolList(v, &pl->value.booleans, NULL, errp);
+        visit_type_boolList(v, NULL, &pl->value.booleans, errp);
         break;
     case PTYPE_NUMBER:
-        visit_type_numberList(v, &pl->value.numbers, NULL, errp);
+        visit_type_numberList(v, NULL, &pl->value.numbers, errp);
         break;
     case PTYPE_INTEGER:
-        visit_type_intList(v, &pl->value.integers, NULL, errp);
+        visit_type_intList(v, NULL, &pl->value.integers, errp);
         break;
     case PTYPE_S8:
-        visit_type_int8List(v, &pl->value.s8_integers, NULL, errp);
+        visit_type_int8List(v, NULL, &pl->value.s8_integers, errp);
         break;
     case PTYPE_S16:
-        visit_type_int16List(v, &pl->value.s16_integers, NULL, errp);
+        visit_type_int16List(v, NULL, &pl->value.s16_integers, errp);
         break;
     case PTYPE_S32:
-        visit_type_int32List(v, &pl->value.s32_integers, NULL, errp);
+        visit_type_int32List(v, NULL, &pl->value.s32_integers, errp);
         break;
     case PTYPE_S64:
-        visit_type_int64List(v, &pl->value.s64_integers, NULL, errp);
+        visit_type_int64List(v, NULL, &pl->value.s64_integers, errp);
         break;
     case PTYPE_U8:
-        visit_type_uint8List(v, &pl->value.u8_integers, NULL, errp);
+        visit_type_uint8List(v, NULL, &pl->value.u8_integers, errp);
         break;
     case PTYPE_U16:
-        visit_type_uint16List(v, &pl->value.u16_integers, NULL, errp);
+        visit_type_uint16List(v, NULL, &pl->value.u16_integers, errp);
         break;
     case PTYPE_U32:
-        visit_type_uint32List(v, &pl->value.u32_integers, NULL, errp);
+        visit_type_uint32List(v, NULL, &pl->value.u32_integers, errp);
         break;
     case PTYPE_U64:
-        visit_type_uint64List(v, &pl->value.u64_integers, NULL, errp);
+        visit_type_uint64List(v, NULL, &pl->value.u64_integers, errp);
         break;
     default:
         g_assert_not_reached();
@@ -213,7 +213,7 @@ static void struct_cleanup(TestStruct *ts)
 
 static void visit_struct(Visitor *v, void **native, Error **errp)
 {
-    visit_type_TestStruct(v, (TestStruct **)native, NULL, errp);
+    visit_type_TestStruct(v, NULL, (TestStruct **)native, errp);
 }
 
 static UserDefTwo *nested_struct_create(void)
@@ -264,12 +264,12 @@ static void nested_struct_cleanup(UserDefTwo *udnp)
 
 static void visit_nested_struct(Visitor *v, void **native, Error **errp)
 {
-    visit_type_UserDefTwo(v, (UserDefTwo **)native, NULL, errp);
+    visit_type_UserDefTwo(v, NULL, (UserDefTwo **)native, errp);
 }
 
 static void visit_nested_struct_list(Visitor *v, void **native, Error **errp)
 {
-    visit_type_UserDefTwoList(v, (UserDefTwoList **)native, NULL, errp);
+    visit_type_UserDefTwoList(v, NULL, (UserDefTwoList **)native, errp);
 }
 
 /* test cases */