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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
* GObject introspection: Registered Type implementation
*
* Copyright (C) 2005 Matthias Clasen
* Copyright (C) 2008,2009 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <string.h>
#include <glib.h>
#include <girepository.h>
#include "girepository-private.h"
#include "gitypelib-internal.h"
/**
* SECTION:giregisteredtypeinfo
* @title: GIRegisteredTypeInfo
* @short_description: Struct representing a struct with a GType
*
* GIRegisteredTypeInfo represents an entity with a GType associated. Could
* be either a #GIEnumInfo, #GIInterfaceInfo, #GIObjectInfo, #GIStructInfo or a
* #GIUnionInfo.
*
* A registered type info struct has a name and a type function.
* To get the name call g_registered_type_info_get_type_name().
* Most users want to call g_registered_type_info_get_g_type() and don't worry
* about the rest of the details.
*
* <refsect1 id="gi-giregisteredtypeinfo.struct-hierarchy" role="struct_hierarchy">
* <title role="struct_hierarchy.title">Struct hierarchy</title>
* <synopsis>
* <link linkend="gi-GIBaseInfo">GIBaseInfo</link>
* +----GIRegisteredTypeInfo
* +----<link linkend="gi-GIEnumInfo">GIEnumInfo</link>
* +----<link linkend="gi-GIInterfaceInfo">GIInterfaceInfo</link>
* +----<link linkend="gi-GIObjectInfo">GIObjectInfo</link>
* +----<link linkend="gi-GIStructInfo">GIStructInfo</link>
* +----<link linkend="gi-GIUnionInfo">GIUnionInfo</link>
* </synopsis>
* </refsect1>
*/
/**
* g_registered_type_info_get_type_name:
* @info: a #GIRegisteredTypeInfo
*
* Obtain the type name of the struct within the GObject type system.
* This type can be passed to g_type_name() to get a #GType.
*
* Returns: the type name
*/
const gchar *
g_registered_type_info_get_type_name (GIRegisteredTypeInfo *info)
{
GIRealInfo *rinfo = (GIRealInfo *)info;
RegisteredTypeBlob *blob;
g_return_val_if_fail (info != NULL, NULL);
g_return_val_if_fail (GI_IS_REGISTERED_TYPE_INFO (info), NULL);
blob = (RegisteredTypeBlob *)&rinfo->typelib->data[rinfo->offset];
if (blob->gtype_name)
return g_typelib_get_string (rinfo->typelib, blob->gtype_name);
return NULL;
}
/**
* g_registered_type_info_get_type_init:
* @info: a #GIRegisteredTypeInfo
*
* Obtain the type init function for @info. The type init function is the
* function which will register the GType within the GObject type system.
* Usually this is not called by langauge bindings or applications, use
* g_registered_type_info_get_g_type() directly instead.
*
* Returns: the symbol name of the type init function, suitable for
* passing into g_module_symbol().
*/
const gchar *
g_registered_type_info_get_type_init (GIRegisteredTypeInfo *info)
{
GIRealInfo *rinfo = (GIRealInfo *)info;
RegisteredTypeBlob *blob;
g_return_val_if_fail (info != NULL, NULL);
g_return_val_if_fail (GI_IS_REGISTERED_TYPE_INFO (info), NULL);
blob = (RegisteredTypeBlob *)&rinfo->typelib->data[rinfo->offset];
if (blob->gtype_init)
return g_typelib_get_string (rinfo->typelib, blob->gtype_init);
return NULL;
}
/**
* g_registered_type_info_get_g_type:
* @info: a #GIRegisteredTypeInfo
*
* Obtain the #GType for this registered type or G_TYPE_NONE which a special meaning.
* It means that either there is no type information associated with this @info or
* that the shared library which provides the type_init function for this
* @info cannot be called.
*
* Returns: the #GType.
*/
GType
g_registered_type_info_get_g_type (GIRegisteredTypeInfo *info)
{
const char *type_init;
GType (* get_type_func) (void);
GIRealInfo *rinfo = (GIRealInfo*)info;
g_return_val_if_fail (info != NULL, G_TYPE_INVALID);
g_return_val_if_fail (GI_IS_REGISTERED_TYPE_INFO (info), G_TYPE_INVALID);
type_init = g_registered_type_info_get_type_init (info);
if (type_init == NULL)
return G_TYPE_NONE;
else if (!strcmp (type_init, "intern"))
/* The special string "intern" is used for some types exposed by libgobject
(that therefore should be always available) */
return g_type_from_name (g_registered_type_info_get_type_name (info));
get_type_func = NULL;
if (!g_typelib_symbol (rinfo->typelib,
type_init,
(void**) &get_type_func))
return G_TYPE_NONE;
return (* get_type_func) ();
}
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