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gst-hotdoc-plugins-scanner: don't instantiate base classes

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Mathieu Duponchelle 2020-06-22 23:41:06 +02:00 committed by Thibault Saunier
parent ef86d00ba9
commit 8c753a30e5
1 changed files with 42 additions and 34 deletions
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76
docs/gst-hotdoc-plugins-scanner.c
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@ -12,7 +12,8 @@
static GRegex *cleanup_caps_field = NULL; static GRegex *cleanup_caps_field = NULL;
static void _add_object_details (GString * json, GString * other_types, static void _add_object_details (GString * json, GString * other_types,
GHashTable * seen_other_types, GObject * object); GHashTable * seen_other_types, GObject * object, GType gtype,
GType inst_type);
static gchar * static gchar *
json_strescape (const gchar * str) json_strescape (const gchar * str)
@ -199,8 +200,14 @@ _serialize_enum (GString * json, GType gtype, GstPluginAPIFlags api_flags)
} }
} }
/* @inst_type is used when serializing base classes in the hierarchy:
* we don't instantiate the base class, which may very well be abstract,
* but instantiate the final type (@inst_type), and use @type to determine
* what properties / signals / etc.. we are actually interested in.
*/
static void static void
_serialize_object (GString * json, GHashTable * seen_other_types, GType gtype) _serialize_object (GString * json, GHashTable * seen_other_types, GType gtype,
GType inst_type)
{ {
GObject *tmpobj; GObject *tmpobj;
GString *other_types = NULL; GString *other_types = NULL;
@ -208,16 +215,12 @@ _serialize_object (GString * json, GHashTable * seen_other_types, GType gtype)
g_string_append_printf (json, "%s\"%s\": { " g_string_append_printf (json, "%s\"%s\": { "
"\"kind\": \"object\"", json->len ? "," : "", g_type_name (gtype)); "\"kind\": \"object\"", json->len ? "," : "", g_type_name (gtype));
if (!G_TYPE_IS_ABSTRACT (gtype) && !G_TYPE_IS_INTERFACE (gtype) other_types = g_string_new ("");
&& G_TYPE_IS_INSTANTIATABLE (gtype) g_string_append_c (json, ',');
&& !g_type_is_a (gtype, G_TYPE_INITABLE) tmpobj = g_object_new (inst_type, NULL);
&& !g_type_is_a (gtype, G_TYPE_ASYNC_INITABLE)) { _add_object_details (json, other_types, seen_other_types, tmpobj, gtype,
other_types = g_string_new (""); inst_type);
g_string_append_c (json, ','); gst_object_unref (tmpobj);
tmpobj = g_object_new (gtype, NULL);
_add_object_details (json, other_types, seen_other_types, tmpobj);
gst_object_unref (tmpobj);
}
g_string_append_c (json, '}'); g_string_append_c (json, '}');
@ -229,7 +232,7 @@ _serialize_object (GString * json, GHashTable * seen_other_types, GType gtype)
static void static void
_add_signals (GString * json, GString * other_types, _add_signals (GString * json, GString * other_types,
GHashTable * seen_other_types, GObject * object) GHashTable * seen_other_types, GObject * object, GType type)
{ {
gboolean opened = FALSE; gboolean opened = FALSE;
guint *signals = NULL; guint *signals = NULL;
@ -237,7 +240,7 @@ _add_signals (GString * json, GString * other_types,
gint i = 0, j; gint i = 0, j;
GstPluginAPIFlags api_flags; GstPluginAPIFlags api_flags;
signals = g_signal_list_ids (G_OBJECT_TYPE (object), &nsignals); signals = g_signal_list_ids (type, &nsignals);
for (i = 0; i < nsignals; i++) { for (i = 0; i < nsignals; i++) {
GSignalQuery query = { 0, }; GSignalQuery query = { 0, };
@ -269,7 +272,7 @@ _add_signals (GString * json, GString * other_types,
_serialize_flags (other_types, query.param_types[j]); _serialize_flags (other_types, query.param_types[j]);
} else if (g_type_is_a (query.param_types[j], G_TYPE_OBJECT)) { } else if (g_type_is_a (query.param_types[j], G_TYPE_OBJECT)) {
_serialize_object (other_types, seen_other_types, _serialize_object (other_types, seen_other_types,
query.param_types[j]); query.param_types[j], query.param_types[j]);
} }
} }
} }
@ -286,7 +289,8 @@ _add_signals (GString * json, GString * other_types,
} else if (g_type_is_a (query.return_type, G_TYPE_FLAGS)) { } else if (g_type_is_a (query.return_type, G_TYPE_FLAGS)) {
_serialize_flags (other_types, query.return_type); _serialize_flags (other_types, query.return_type);
} else if (g_type_is_a (query.return_type, G_TYPE_OBJECT)) { } else if (g_type_is_a (query.return_type, G_TYPE_OBJECT)) {
_serialize_object (other_types, seen_other_types, query.return_type); _serialize_object (other_types, seen_other_types, query.return_type,
query.return_type);
} }
} }
@ -324,7 +328,8 @@ _add_signals (GString * json, GString * other_types,
static void static void
_add_properties (GString * json, GString * other_types, _add_properties (GString * json, GString * other_types,
GHashTable * seen_other_types, GObject * object, GObjectClass * klass) GHashTable * seen_other_types, GObject * object, GObjectClass * klass,
GType type)
{ {
gchar *tmpstr; gchar *tmpstr;
guint i, n_props; guint i, n_props;
@ -339,7 +344,7 @@ _add_properties (GString * json, GString * other_types,
const gchar *mutable_str = NULL; const gchar *mutable_str = NULL;
spec = specs[i]; spec = specs[i];
if (spec->owner_type != G_OBJECT_TYPE (object)) if (spec->owner_type != type)
continue; continue;
g_value_init (&value, spec->value_type); g_value_init (&value, spec->value_type);
@ -400,7 +405,8 @@ _add_properties (GString * json, GString * other_types,
} else if (G_IS_PARAM_SPEC_FLAGS (spec)) { } else if (G_IS_PARAM_SPEC_FLAGS (spec)) {
_serialize_flags (other_types, spec->value_type); _serialize_flags (other_types, spec->value_type);
} else if (G_IS_PARAM_SPEC_OBJECT (spec)) { } else if (G_IS_PARAM_SPEC_OBJECT (spec)) {
_serialize_object (other_types, seen_other_types, spec->value_type); _serialize_object (other_types, seen_other_types, spec->value_type,
spec->value_type);
} }
} }
@ -695,7 +701,7 @@ _add_element_pad_templates (GString * json, GString * other_types,
&& gst_type_is_plugin_api (pad_type, &api_flags)) { && gst_type_is_plugin_api (pad_type, &api_flags)) {
g_hash_table_insert (seen_other_types, g_hash_table_insert (seen_other_types,
(gpointer) g_type_name (pad_type), NULL); (gpointer) g_type_name (pad_type), NULL);
_serialize_object (other_types, seen_other_types, pad_type); _serialize_object (other_types, seen_other_types, pad_type, pad_type);
} }
} }
g_string_append_c (json, '}'); g_string_append_c (json, '}');
@ -757,31 +763,32 @@ _add_factory_details (GString * json, GstElementFactory * factory)
static void static void
_add_object_details (GString * json, GString * other_types, _add_object_details (GString * json, GString * other_types,
GHashTable * seen_other_types, GObject * object) GHashTable * seen_other_types, GObject * object, GType type,
GType inst_type)
{ {
GType type;
GType *interfaces; GType *interfaces;
guint n_interfaces; guint n_interfaces;
GType ptype = type;
g_string_append (json, "\"hierarchy\": ["); g_string_append (json, "\"hierarchy\": [");
for (type = G_OBJECT_TYPE (object);; type = g_type_parent (type)) { for (;; ptype = g_type_parent (ptype)) {
g_string_append_printf (json, "\"%s\"%c", g_type_name (type), g_string_append_printf (json, "\"%s\"%c", g_type_name (ptype),
type == G_TYPE_OBJECT ? ' ' : ','); ptype == G_TYPE_OBJECT ? ' ' : ',');
if (!g_hash_table_contains (seen_other_types, g_type_name (type)) if (!g_hash_table_contains (seen_other_types, g_type_name (ptype))
&& gst_type_is_plugin_api (type, NULL)) { && gst_type_is_plugin_api (ptype, NULL)) {
g_hash_table_insert (seen_other_types, (gpointer) g_type_name (type), g_hash_table_insert (seen_other_types, (gpointer) g_type_name (ptype),
NULL); NULL);
_serialize_object (other_types, seen_other_types, type); _serialize_object (other_types, seen_other_types, ptype, inst_type);
} }
if (type == G_TYPE_OBJECT) if (ptype == G_TYPE_OBJECT)
break; break;
} }
g_string_append (json, "]"); g_string_append (json, "]");
interfaces = g_type_interfaces (G_OBJECT_TYPE (object), &n_interfaces); interfaces = g_type_interfaces (type, &n_interfaces);
if (n_interfaces) { if (n_interfaces) {
GType *iface; GType *iface;
@ -796,8 +803,8 @@ _add_object_details (GString * json, GString * other_types,
} }
_add_properties (json, other_types, seen_other_types, object, _add_properties (json, other_types, seen_other_types, object,
G_OBJECT_GET_CLASS (object)); G_OBJECT_GET_CLASS (object), type);
_add_signals (json, other_types, seen_other_types, object); _add_signals (json, other_types, seen_other_types, object, type);
} }
static void static void
@ -817,7 +824,8 @@ _add_element_details (GString * json, GString * other_types,
get_rank_name (s, gst_plugin_feature_get_rank (feature))); get_rank_name (s, gst_plugin_feature_get_rank (feature)));
_add_factory_details (json, GST_ELEMENT_FACTORY (feature)); _add_factory_details (json, GST_ELEMENT_FACTORY (feature));
_add_object_details (json, other_types, seen_other_types, G_OBJECT (element)); _add_object_details (json, other_types, seen_other_types, G_OBJECT (element),
G_OBJECT_TYPE (element), G_OBJECT_TYPE (element));
_add_element_pad_templates (json, other_types, seen_other_types, element, _add_element_pad_templates (json, other_types, seen_other_types, element,
GST_ELEMENT_FACTORY (feature)); GST_ELEMENT_FACTORY (feature));