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131 lines
3.6 KiB
C
131 lines
3.6 KiB
C
/* GObject introspection: Virtual Function implementation
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*
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* Copyright (C) 2005 Matthias Clasen
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* Copyright (C) 2008,2009 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include <string.h>
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#include <glib.h>
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#include <girepository.h>
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#include "girepository-private.h"
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#include "gitypelib-internal.h"
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GIVFuncInfo *
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_g_base_info_find_vfunc (GIRealInfo *rinfo,
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guint32 offset,
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gint n_vfuncs,
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const gchar *name)
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{
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/* FIXME hash */
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Header *header = (Header *)rinfo->typelib->data;
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gint i;
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for (i = 0; i < n_vfuncs; i++)
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{
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VFuncBlob *fblob = (VFuncBlob *)&rinfo->typelib->data[offset];
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const gchar *fname = (const gchar *)&rinfo->typelib->data[fblob->name];
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if (strcmp (name, fname) == 0)
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return (GIVFuncInfo *) g_info_new (GI_INFO_TYPE_VFUNC, (GIBaseInfo*) rinfo,
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rinfo->typelib, offset);
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offset += header->vfunc_blob_size;
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}
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return NULL;
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}
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GIVFuncInfoFlags
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g_vfunc_info_get_flags (GIVFuncInfo *info)
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{
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GIVFuncInfoFlags flags;
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GIRealInfo *rinfo = (GIRealInfo *)info;
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VFuncBlob *blob = (VFuncBlob *)&rinfo->typelib->data[rinfo->offset];
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flags = 0;
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if (blob->must_chain_up)
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flags = flags | GI_VFUNC_MUST_CHAIN_UP;
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if (blob->must_be_implemented)
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flags = flags | GI_VFUNC_MUST_OVERRIDE;
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if (blob->must_not_be_implemented)
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flags = flags | GI_VFUNC_MUST_NOT_OVERRIDE;
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return flags;
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}
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gint
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g_vfunc_info_get_offset (GIVFuncInfo *info)
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{
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GIRealInfo *rinfo = (GIRealInfo *)info;
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VFuncBlob *blob = (VFuncBlob *)&rinfo->typelib->data[rinfo->offset];
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return blob->struct_offset;
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}
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GISignalInfo *
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g_vfunc_info_get_signal (GIVFuncInfo *info)
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{
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GIRealInfo *rinfo = (GIRealInfo *)info;
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VFuncBlob *blob = (VFuncBlob *)&rinfo->typelib->data[rinfo->offset];
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if (blob->class_closure)
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return g_interface_info_get_signal ((GIInterfaceInfo *)rinfo->container, blob->signal);
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return NULL;
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}
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/**
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* g_vfunc_info_get_invoker:
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* @info: a #GIVFuncInfo
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*
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* If this virtual function has an associated invoker method, this
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* method will return it. An invoker method is a C entry point.
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*
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* Not all virtuals will have invokers.
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*
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* Returns: (transfer full): the #GIVFuncInfo or %NULL. Free it with
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* g_base_info_unref() when done.
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*/
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GIFunctionInfo *
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g_vfunc_info_get_invoker (GIVFuncInfo *info)
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{
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GIRealInfo *rinfo = (GIRealInfo *)info;
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VFuncBlob *blob = (VFuncBlob *)&rinfo->typelib->data[rinfo->offset];
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GIBaseInfo *container = rinfo->container;
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GIInfoType parent_type;
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/* 1023 = 0x3ff is the maximum of the 10 bits for invoker index */
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if (blob->invoker == 1023)
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return NULL;
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parent_type = g_base_info_get_type (container);
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if (parent_type == GI_INFO_TYPE_OBJECT)
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return g_object_info_get_method ((GIObjectInfo*)container, blob->invoker);
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else if (parent_type == GI_INFO_TYPE_INTERFACE)
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return g_interface_info_get_method ((GIInterfaceInfo*)container, blob->invoker);
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else
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g_assert_not_reached ();
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}
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