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GIVFuncInfo: allow retrieving the address of an interface vfunc

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Don't assume that the parent of a GIVFuncInfo is a GIObjectInfo,
it could be a GIInterfaceInfo, if the vfunc is part of interface
instead of a class.

https://bugzilla.gnome.org/show_bug.cgi?id=688375
This commit is contained in:
Giovanni Campagna 2013-10-13 02:02:22 +02:00
parent bb7f8d57c2
commit 67358cdaf4
1 changed files with 31 additions and 5 deletions
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36
givfuncinfo.c
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@ -216,15 +216,28 @@ g_vfunc_info_get_address (GIVFuncInfo *vfunc_info,
GType implementor_gtype,
GError **error)
{
GIBaseInfo *container_info;
GIInterfaceInfo *interface_info;
GIObjectInfo *object_info;
GIStructInfo *struct_info;
GIFieldInfo *field_info = NULL;
int length, i, offset;
gpointer implementor_vtable;
gpointer implementor_class, implementor_vtable;
gpointer func = NULL;
object_info = (GIObjectInfo *) g_base_info_get_container (vfunc_info);
struct_info = g_object_info_get_class_struct (object_info);
container_info = g_base_info_get_container (vfunc_info);
if (g_base_info_get_type (container_info) == GI_INFO_TYPE_OBJECT)
{
object_info = (GIObjectInfo*) container_info;
interface_info = NULL;
struct_info = g_object_info_get_class_struct (object_info);
}
else
{
interface_info = (GIInterfaceInfo*) container_info;
object_info = NULL;
struct_info = g_interface_info_get_iface_struct (interface_info);
}
length = g_struct_info_get_n_fields (struct_info);
for (i = 0; i < length; i++)
@ -250,10 +263,23 @@ g_vfunc_info_get_address (GIVFuncInfo *vfunc_info,
goto out;
}
implementor_vtable = g_type_class_ref (implementor_gtype);
implementor_class = g_type_class_ref (implementor_gtype);
if (object_info)
{
implementor_vtable = implementor_class;
}
else
{
GType interface_type;
interface_type = g_registered_type_info_get_g_type ((GIRegisteredTypeInfo*) interface_info);
implementor_vtable = g_type_interface_peek (implementor_class, interface_type);
}
offset = g_field_info_get_offset (field_info);
func = *(gpointer*) G_STRUCT_MEMBER_P (implementor_vtable, offset);
g_type_class_unref (implementor_vtable);
g_type_class_unref (implementor_class);
g_base_info_unref (field_info);
if (func == NULL)