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giobjectinfo: Add g_object_info_find_vfunc_using_interfaces

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As an analogue to g_object_info_find_method_using_interfaces, add a
new API so that we can find a vfunc using the same strategy.
This commit is contained in:
Jasper St. Pierre 2012-01-04 14:46:51 -05:00
parent a0d19ca066
commit 3aaf08b49d
2 changed files with 63 additions and 0 deletions
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60
giobjectinfo.c
View File

@ -659,6 +659,66 @@ g_object_info_find_vfunc (GIObjectInfo *info,
return _g_base_info_find_vfunc (rinfo, offset, blob->n_vfuncs, name);
}
/**
* g_object_info_find_vfunc_using_interfaces:
* @info: a #GIObjectInfo
* @name: name of method to obtain
* @implementor: (out) (transfer full): The implementor of the interface
*
* Locate a virtual function slot with name @name, searching both the object
* @info and any interfaces it implements. Note that the namespace for
* virtuals is distinct from that of methods; there may or may not be a
* concrete method associated for a virtual. If there is one, it may be
* retrieved using g_vfunc_info_get_invoker(), otherwise %NULL will be
* returned.
*
* Note that this function does *not* search parent classes; you will have
* to chain up if that's desired.
*
* Returns: (transfer full): the #GIFunctionInfo. Free the struct by calling
* g_base_info_unref() when done.
*/
GIVFuncInfo *
g_object_info_find_vfunc_using_interfaces (GIObjectInfo *info,
const gchar *name,
GIObjectInfo **implementor)
{
GIVFuncInfo *result = NULL;
GIObjectInfo *implementor_result = NULL;
result = g_object_info_find_vfunc (info, name);
if (result)
implementor_result = g_base_info_ref ((GIBaseInfo*) info);
if (result == NULL)
{
int n_interfaces;
int i;
n_interfaces = g_object_info_get_n_interfaces (info);
for (i = 0; i < n_interfaces; ++i)
{
GIInterfaceInfo *iface_info;
iface_info = g_object_info_get_interface (info, i);
result = g_interface_info_find_vfunc (iface_info, name);
if (result != NULL)
{
implementor_result = iface_info;
break;
}
g_base_info_unref ((GIBaseInfo*) iface_info);
}
}
if (implementor)
*implementor = implementor_result;
else if (implementor_result != NULL)
g_base_info_unref ((GIBaseInfo*) implementor_result);
return result;
}
/**
* g_object_info_get_n_constants:
* @info: a #GIObjectInfo

3
giobjectinfo.h
View File

@ -108,6 +108,9 @@ GIVFuncInfo * g_object_info_get_vfunc (GIObjectInfo *info,
gint n);
GIVFuncInfo * g_object_info_find_vfunc (GIObjectInfo *info,
const gchar *name);
GIVFuncInfo * g_object_info_find_vfunc_using_interfaces (GIObjectInfo *info,
const gchar *name,
GIObjectInfo **implementor);
gint g_object_info_get_n_constants (GIObjectInfo *info);
GIConstantInfo * g_object_info_get_constant (GIObjectInfo *info,
gint n);