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3556c864ed
This adds gi_type_tag_argument_from_hash_pointer() and gi_type_tag_hash_pointer_from_argument(). They do the same thing as the corresponding g_type_info_... functions, which are used to pack and unpack the correct field of a GIArgument into/from a data pointer in GHashTable or GList, regardless of machine architecture or endianness. These functions take a GITypeTag obtained from g_type_info_get_storage_type(), instead of a GITypeInfo pointer. (The storage type is the only piece of data that is actually used from the GITypeInfo structure.) It's intended for bindings using an argument cache, such as GJS and PyGObject, so that they don't have to store a whole 64-bit GITypeInfo pointer in their cache in many common cases, and can just store the 5-bit type tag instead. The original g_type_info_... functions are reimplemented in terms of the new g_type_tag... functions.
163 lines
4.8 KiB
C
163 lines
4.8 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
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* GObject introspection: Type
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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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#ifndef __GITYPEINFO_H__
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#define __GITYPEINFO_H__
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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 <gitypes.h>
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G_BEGIN_DECLS
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/**
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* GI_IS_TYPE_INFO
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* @info: an info structure
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*
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* Checks if @info is a #GITypeInfo.
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*/
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#define GI_IS_TYPE_INFO(info) \
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(g_base_info_get_type((GIBaseInfo*)info) == GI_INFO_TYPE_TYPE)
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/**
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* G_TYPE_TAG_IS_BASIC
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* @tag: a type tag
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*
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* Checks if @tag is a basic type.
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*
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* Deprecated: 1.72: Use GI_TYPE_TAG_IS_BASIC() instead
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*/
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#define G_TYPE_TAG_IS_BASIC(tag) GI_TYPE_TAG_IS_BASIC(tag)
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/**
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* GI_TYPE_TAG_IS_BASIC
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* @tag: a type tag
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*
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* Checks if @tag is a basic type.
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*
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* Since: 1.72
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*/
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#define GI_TYPE_TAG_IS_BASIC(tag) ((tag) < GI_TYPE_TAG_ARRAY || (tag) == GI_TYPE_TAG_UNICHAR)
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/**
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* GI_TYPE_TAG_IS_NUMERIC:
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* @tag: a type tag
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*
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* Checks if @tag is a numeric type. That is, integer or floating point.
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*
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* Since: 1.72
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*/
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#define GI_TYPE_TAG_IS_NUMERIC(tag) ((tag) >= GI_TYPE_TAG_INT8 && (tag) <= GI_TYPE_TAG_DOUBLE)
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/**
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* GI_TYPE_TAG_IS_NUMERIC:
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* @tag: a type tag
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*
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* Checks if @tag is a numeric type. That is, integer or floating point.
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*
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* Since: 1.72
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*/
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#define GI_TYPE_TAG_IS_NUMERIC(tag) ((tag) >= GI_TYPE_TAG_INT8 && (tag) <= GI_TYPE_TAG_DOUBLE)
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/**
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* GI_TYPE_TAG_IS_NUMERIC:
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* @tag: a type tag
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*
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* Checks if @tag is a numeric type. That is, integer or floating point.
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*
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* Since: 1.72
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*/
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#define GI_TYPE_TAG_IS_NUMERIC(tag) ((tag) >= GI_TYPE_TAG_INT8 && (tag) <= GI_TYPE_TAG_DOUBLE)
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/**
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* GI_TYPE_TAG_IS_CONTAINER:
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* @tag: a type tag
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*
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* Checks if @tag is a container type. That is, a type which may have a nonnull
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* return from g_type_info_get_param_type().
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*
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* Since: 1.72
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*/
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#define GI_TYPE_TAG_IS_CONTAINER(tag) ((tag) == GI_TYPE_TAG_ARRAY || \
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((tag) >= GI_TYPE_TAG_GLIST && (tag) <= GI_TYPE_TAG_GHASH))
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GI_AVAILABLE_IN_ALL
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const gchar* g_type_tag_to_string (GITypeTag type);
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GI_AVAILABLE_IN_ALL
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const gchar* g_info_type_to_string (GIInfoType type);
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GI_AVAILABLE_IN_ALL
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gboolean g_type_info_is_pointer (GITypeInfo *info);
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GI_AVAILABLE_IN_ALL
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GITypeTag g_type_info_get_tag (GITypeInfo *info);
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GI_AVAILABLE_IN_ALL
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GITypeInfo * g_type_info_get_param_type (GITypeInfo *info,
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gint n);
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GI_AVAILABLE_IN_ALL
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GIBaseInfo * g_type_info_get_interface (GITypeInfo *info);
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GI_AVAILABLE_IN_ALL
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gint g_type_info_get_array_length (GITypeInfo *info);
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GI_AVAILABLE_IN_ALL
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gint g_type_info_get_array_fixed_size(GITypeInfo *info);
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GI_AVAILABLE_IN_ALL
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gboolean g_type_info_is_zero_terminated (GITypeInfo *info);
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GI_AVAILABLE_IN_ALL
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GIArrayType g_type_info_get_array_type (GITypeInfo *info);
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GI_AVAILABLE_IN_1_66
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GITypeTag g_type_info_get_storage_type (GITypeInfo *info);
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GI_AVAILABLE_IN_1_66
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void g_type_info_argument_from_hash_pointer (GITypeInfo *info,
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gpointer hash_pointer,
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GIArgument *arg);
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GI_AVAILABLE_IN_1_66
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gpointer g_type_info_hash_pointer_from_argument (GITypeInfo *info,
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GIArgument *arg);
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GI_AVAILABLE_IN_1_72
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void gi_type_tag_argument_from_hash_pointer (GITypeTag storage_type,
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gpointer hash_pointer,
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GIArgument *arg);
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GI_AVAILABLE_IN_1_72
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gpointer gi_type_tag_hash_pointer_from_argument (GITypeTag storage_type,
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GIArgument *arg);
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G_END_DECLS
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#endif /* __GITYPEINFO_H__ */
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