qapi qdev qom: 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/qdev.json and
qapi/qom.json.

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

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Daniel P. Berrangé <berrange@redhat.com>
Cc: Eduardo Habkost <eduardo@habkost.net>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20221018062849.3420573-19-armbru@redhat.com>
[stubs/qdev.c fixed]

hw/acpi/memory_hotplug.c

@@ -185,7 +185,7 @@ static void acpi_memory_hotplug_write(void *opaque, hwaddr addr, uint64_t data,
                  */
                 qapi_event_send_mem_unplug_error(dev->id ? : "",
                                                  error_get_pretty(local_err));
-                qapi_event_send_device_unplug_guest_error(!!dev->id, dev->id,
+                qapi_event_send_device_unplug_guest_error(dev->id,
                                                           dev->canonical_path);
                 error_free(local_err);
                 break;

hw/core/qdev.c

@@ -744,7 +744,7 @@ static void device_finalize(Object *obj)
     if (dev->pending_deleted_event) {
         g_assert(dev->canonical_path);
 
-        qapi_event_send_device_deleted(!!dev->id, dev->id, dev->canonical_path);
+        qapi_event_send_device_deleted(dev->id, dev->canonical_path);
         g_free(dev->canonical_path);
         dev->canonical_path = NULL;
     }

hw/ppc/spapr.c

@@ -3728,7 +3728,7 @@ void spapr_memory_unplug_rollback(SpaprMachineState *spapr, DeviceState *dev)
 
     qapi_event_send_mem_unplug_error(dev->id ? : "", qapi_error);
 
-    qapi_event_send_device_unplug_guest_error(!!dev->id, dev->id,
+    qapi_event_send_device_unplug_guest_error(dev->id,
                                               dev->canonical_path);
 }
 

hw/ppc/spapr_drc.c

@@ -175,8 +175,7 @@ static uint32_t drc_unisolate_logical(SpaprDrc *drc)
                              "for device %s", drc->dev->id);
             }
 
-            qapi_event_send_device_unplug_guest_error(!!drc->dev->id,
-                                                      drc->dev->id,
+            qapi_event_send_device_unplug_guest_error(drc->dev->id,
                                                       drc->dev->canonical_path);
         }
 

qom/qom-qmp-cmds.c

@@ -99,15 +99,13 @@ static void qom_list_types_tramp(ObjectClass *klass, void *data)
     info->name = g_strdup(object_class_get_name(klass));
     info->has_abstract = info->abstract = object_class_is_abstract(klass);
     if (parent) {
-        info->has_parent = true;
         info->parent = g_strdup(object_class_get_name(parent));
     }
 
     QAPI_LIST_PREPEND(*pret, info);
 }
 
-ObjectTypeInfoList *qmp_qom_list_types(bool has_implements,
-                                       const char *implements,
+ObjectTypeInfoList *qmp_qom_list_types(const char *implements,
                                        bool has_abstract,
                                        bool abstract,
                                        Error **errp)
@@ -168,10 +166,8 @@ ObjectPropertyInfoList *qmp_device_list_properties(const char *typename,
         info = g_new0(ObjectPropertyInfo, 1);
         info->name = g_strdup(prop->name);
         info->type = g_strdup(prop->type);
-        info->has_description = !!prop->description;
         info->description = g_strdup(prop->description);
         info->default_value = qobject_ref(prop->defval);
-        info->has_default_value = !!info->default_value;
 
         QAPI_LIST_PREPEND(prop_list, info);
     }
@@ -215,7 +211,6 @@ ObjectPropertyInfoList *qmp_qom_list_properties(const char *typename,
         info = g_malloc0(sizeof(*info));
         info->name = g_strdup(prop->name);
         info->type = g_strdup(prop->type);
-        info->has_description = !!prop->description;
         info->description = g_strdup(prop->description);
 
         QAPI_LIST_PREPEND(prop_list, info);

scripts/qapi/schema.py

@@ -759,8 +759,6 @@ def need_has(self):
         assert self.type
         # Temporary hack to support dropping the has_FOO in reviewable chunks
         opt_out = [
-            'qapi/qdev.json',
-            'qapi/qom.json',
             'qapi/replay.json',
             'qapi/rocker.json',
             'qapi/run-state.json',

stubs/qdev.c

@@ -15,15 +15,13 @@
 #include "qemu/osdep.h"
 #include "qapi/qapi-events-qdev.h"
 
-void qapi_event_send_device_deleted(bool has_device,
-                                    const char *device,
+void qapi_event_send_device_deleted(const char *device,
                                     const char *path)
 {
     /* Nothing to do. */
 }
 
-void qapi_event_send_device_unplug_guest_error(bool has_device,
-                                               const char *device,
+void qapi_event_send_device_unplug_guest_error(const char *device,
                                                const char *path)
 {
     /* Nothing to do. */

tests/qtest/fuzz/qos_fuzz.c

@@ -50,8 +50,7 @@ static void qos_set_machines_devices_available(void)
     machines_apply_to_node(mach_info);
     qapi_free_MachineInfoList(mach_info);
 
-    type_info = qmp_qom_list_types(true, "device", true, true,
-                                   &error_abort);
+    type_info = qmp_qom_list_types("device", true, true, &error_abort);
     types_apply_to_node(type_info);
     qapi_free_ObjectTypeInfoList(type_info);
 }