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bf4cf2d464
Most of the code for handling stack-allocated infos was correct, it was just missing code to initialise the `GTypeInstance` member. Since `GTypeInstance` isn’t really designed for stack allocation, this is a little hacky — it requires setting up the member within `GTypeInstance` manually. It works, though. The externally visible consequence of this, though, is that stack-allocated `GIBaseInfo`s now need to be cleared when they’re finished being used. This allows the `GTypeClass` ref to be dropped. All users of the stack-allocated APIs in libgirepository will need to adapt to this change. Signed-off-by: Philip Withnall <pwithnall@gnome.org> Fixes: #3218
139 lines
4.4 KiB
C
139 lines
4.4 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
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* GObject introspection: GIBaseInfo
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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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* SPDX-License-Identifier: LGPL-2.1-or-later
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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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#pragma once
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#if !defined (__GIREPOSITORY_H_INSIDE__) && !defined (GI_COMPILATION)
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#error "Only <girepository.h> can be included directly."
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#endif
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#include <glib-object.h>
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#include <girepository/gitypelib.h>
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#include <girepository/gitypes.h>
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G_BEGIN_DECLS
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/**
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* GIAttributeIter:
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*
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* An opaque structure used to iterate over attributes
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* in a [class@GIRepository.BaseInfo] struct.
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*
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* Since: 2.80
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*/
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typedef struct {
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/*< private >*/
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void *data;
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void *_dummy[4];
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} GIAttributeIter;
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/**
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* GI_ATTRIBUTE_ITER_INIT:
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*
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* Initialise a stack-allocated [type@GIRepository.AttributeIter] to a value
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* suitable for passing to the first call to an ‘iterate’ function.
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*
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* Since: 2.80
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*/
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#define GI_ATTRIBUTE_ITER_INIT { NULL, { NULL, } }
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#define GI_TYPE_BASE_INFO (gi_base_info_get_type ())
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/**
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* GI_BASE_INFO:
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* @info: Info object which is subject to casting.
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*
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* Casts a [type@GIRepository.BaseInfo] or derived pointer into a
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* `(GIBaseInfo*)` pointer.
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*
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* Depending on the current debugging level, this function may invoke
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* certain runtime checks to identify invalid casts.
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*
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* Since: 2.80
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*/
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#define GI_BASE_INFO(info) (G_TYPE_CHECK_INSTANCE_CAST ((info), GI_TYPE_BASE_INFO, GIBaseInfo))
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/**
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* GI_IS_BASE_INFO:
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* @info: Instance to check for being a `GI_TYPE_BASE_INFO`.
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*
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* Checks whether a valid [type@GObject.TypeInstance] pointer is of type
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* `GI_TYPE_BASE_INFO` (or a derived type).
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*
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* Since: 2.80
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*/
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#define GI_IS_BASE_INFO(info) (G_TYPE_CHECK_INSTANCE_TYPE ((info), GI_TYPE_BASE_INFO))
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GI_AVAILABLE_IN_ALL
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GType gi_base_info_get_type (void) G_GNUC_CONST;
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GI_AVAILABLE_IN_ALL
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GIBaseInfo * gi_base_info_ref (void *info);
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GI_AVAILABLE_IN_ALL
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void gi_base_info_unref (void *info);
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GI_AVAILABLE_IN_ALL
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void gi_base_info_clear (void *info);
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GI_AVAILABLE_IN_ALL
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GIInfoType gi_base_info_get_info_type (GIBaseInfo *info);
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GI_AVAILABLE_IN_ALL
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const char * gi_base_info_get_name (GIBaseInfo *info);
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GI_AVAILABLE_IN_ALL
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const char * gi_base_info_get_namespace (GIBaseInfo *info);
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GI_AVAILABLE_IN_ALL
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gboolean gi_base_info_is_deprecated (GIBaseInfo *info);
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GI_AVAILABLE_IN_ALL
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const char * gi_base_info_get_attribute (GIBaseInfo *info,
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const char *name);
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GI_AVAILABLE_IN_ALL
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gboolean gi_base_info_iterate_attributes (GIBaseInfo *info,
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GIAttributeIter *iterator,
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const char **name,
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const char **value);
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GI_AVAILABLE_IN_ALL
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GIBaseInfo * gi_base_info_get_container (GIBaseInfo *info);
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GI_AVAILABLE_IN_ALL
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GITypelib * gi_base_info_get_typelib (GIBaseInfo *info);
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GI_AVAILABLE_IN_ALL
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gboolean gi_base_info_equal (GIBaseInfo *info1,
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GIBaseInfo *info2);
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GI_AVAILABLE_IN_ALL
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GIBaseInfo * gi_info_new (GIInfoType type,
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GIBaseInfo *container,
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GITypelib *typelib,
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size_t offset);
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G_END_DECLS
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