qapi machine: Elide redundant has_FOO in generated C

The has_FOO for pointer-valued FOO are redundant, except for arrays.
They are also a nuisance to work with.  Recent commit "qapi: Start to
elide redundant has_FOO in generated C" provided the means to elide
them step by step.  This is the step for qapi/machine*.json.

Said commit explains the transformation in more detail.  The invariant
violations mentioned there do not occur here.

Cc: Eduardo Habkost <eduardo@habkost.net>
Cc: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Cc: Philippe Mathieu-Daudé <f4bug@amsat.org>
Cc: Yanan Wang <wangyanan55@huawei.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20221104160712.3005652-16-armbru@redhat.com>

4 files changed, 11 insertions, 18 deletions

diff --git a/hw/core/machine-hmp-cmds.c b/hw/core/machine-hmp-cmds.c
index 5cb5eecbfc..a1a51e9778 100644
--- a/hw/core/machine-hmp-cmds.c
+++ b/hw/core/machine-hmp-cmds.c
@@ -62,7 +62,7 @@ void hmp_hotpluggable_cpus(Monitor *mon, const QDict *qdict)
         monitor_printf(mon, "  type: \"%s\"\n", l->value->type);
         monitor_printf(mon, "  vcpus_count: \"%" PRIu64 "\"\n",
                        l->value->vcpus_count);
-        if (l->value->has_qom_path) {
+        if (l->value->qom_path) {
             monitor_printf(mon, "  qom_path: \"%s\"\n", l->value->qom_path);
         }
 
diff --git a/hw/core/machine-qmp-cmds.c b/hw/core/machine-qmp-cmds.c
index 4f4ab30f8c..80d5e59651 100644
--- a/hw/core/machine-qmp-cmds.c
+++ b/hw/core/machine-qmp-cmds.c
@@ -55,8 +55,7 @@ CpuInfoFastList *qmp_query_cpus_fast(Error **errp)
         value->qom_path = object_get_canonical_path(OBJECT(cpu));
         value->thread_id = cpu->thread_id;
 
-        value->has_props = !!mc->cpu_index_to_instance_props;
-        if (value->has_props) {
+        if (mc->cpu_index_to_instance_props) {
             CpuInstanceProperties *props;
             props = g_malloc0(sizeof(*props));
             *props = mc->cpu_index_to_instance_props(ms, cpu->cpu_index);
@@ -90,7 +89,6 @@ MachineInfoList *qmp_query_machines(Error **errp)
         }
 
         if (mc->alias) {
-            info->has_alias = true;
             info->alias = g_strdup(mc->alias);
         }
 
@@ -101,11 +99,9 @@ MachineInfoList *qmp_query_machines(Error **errp)
         info->deprecated = !!mc->deprecation_reason;
         if (mc->default_cpu_type) {
             info->default_cpu_type = g_strdup(mc->default_cpu_type);
-            info->has_default_cpu_type = true;
         }
         if (mc->default_ram_id) {
             info->default_ram_id = g_strdup(mc->default_ram_id);
-            info->has_default_ram_id = true;
         }
 
         QAPI_LIST_PREPEND(mach_list, info);
@@ -168,7 +164,6 @@ static int query_memdev(Object *obj, void *opaque)
         m = g_malloc0(sizeof(*m));
 
         m->id = g_strdup(object_get_canonical_path_component(obj));
-        m->has_id = !!m->id;
 
         m->size = object_property_get_uint(obj, "size", &error_abort);
         m->merge = object_property_get_bool(obj, "merge", &error_abort);
@@ -227,7 +222,7 @@ HumanReadableText *qmp_x_query_numa(Error **errp)
     for (i = 0; i < nb_numa_nodes; i++) {
         g_string_append_printf(buf, "node %d cpus:", i);
         for (cpu = cpu_list; cpu; cpu = cpu->next) {
-            if (cpu->value->has_props && cpu->value->props->has_node_id &&
+            if (cpu->value->props && cpu->value->props->has_node_id &&
                 cpu->value->props->node_id == i) {
                 g_string_append_printf(buf, " %" PRIi64, cpu->value->cpu_index);
             }
diff --git a/hw/core/machine.c b/hw/core/machine.c
index 8d34caa31d..c76e402bbf 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -684,7 +684,6 @@ HotpluggableCPUList *machine_query_hotpluggable_cpus(MachineState *machine)
 
         cpu = machine->possible_cpus->cpus[i].cpu;
         if (cpu) {
-            cpu_item->has_qom_path = true;
             cpu_item->qom_path = object_get_canonical_path(cpu);
         }
         QAPI_LIST_PREPEND(head, cpu_item);
@@ -873,8 +872,7 @@ static void machine_copy_boot_config(MachineState *ms, BootConfiguration *config
 
     machine_free_boot_config(ms);
     ms->boot_config = *config;
-    if (!config->has_order) {
-        ms->boot_config.has_order = true;
+    if (!config->order) {
         ms->boot_config.order = g_strdup(machine_class->default_boot_order);
     }
 }
@@ -889,13 +887,13 @@ static void machine_set_boot(Object *obj, Visitor *v, const char *name,
     if (!visit_type_BootConfiguration(v, name, &config, errp)) {
         return;
     }
-    if (config->has_order) {
+    if (config->order) {
         validate_bootdevices(config->order, errp);
         if (*errp) {
             goto out_free;
         }
     }
-    if (config->has_once) {
+    if (config->once) {
         validate_bootdevices(config->once, errp);
         if (*errp) {
             goto out_free;
@@ -1424,7 +1422,7 @@ void qdev_machine_creation_done(void)
 {
     cpu_synchronize_all_post_init();
 
-    if (current_machine->boot_config.has_once) {
+    if (current_machine->boot_config.once) {
         qemu_boot_set(current_machine->boot_config.once, &error_fatal);
         qemu_register_reset(restore_boot_order, g_strdup(current_machine->boot_config.order));
     }
diff --git a/hw/core/numa.c b/hw/core/numa.c
index ea24a5fa8c..d8d36b16d8 100644
--- a/hw/core/numa.c
+++ b/hw/core/numa.c
@@ -130,9 +130,9 @@ static void parse_numa_node(MachineState *ms, NumaNodeOptions *node,
         }
     }
 
-    have_memdevs = have_memdevs ? : node->has_memdev;
-    have_mem = have_mem ? : node->has_mem;
-    if ((node->has_mem && have_memdevs) || (node->has_memdev && have_mem)) {
+    have_memdevs = have_memdevs || node->memdev;
+    have_mem = have_mem || node->has_mem;
+    if ((node->has_mem && have_memdevs) || (node->memdev && have_mem)) {
         error_setg(errp, "numa configuration should use either mem= or memdev=,"
                    "mixing both is not allowed");
         return;
@@ -152,7 +152,7 @@ static void parse_numa_node(MachineState *ms, NumaNodeOptions *node,
                         " use -numa node,memdev instead");
         }
     }
-    if (node->has_memdev) {
+    if (node->memdev) {
         Object *o;
         o = object_resolve_path_type(node->memdev, TYPE_MEMORY_BACKEND, NULL);
         if (!o) {