mirror of
https://gitlab.gnome.org/GNOME/glib.git
synced 2024-12-30 17:36:16 +01:00
00bfb3ab44
This was mostly machine generated with the following command:
```
codespell \
--builtin clear,rare,usage \
--skip './po/*' --skip './.git/*' --skip './NEWS*' \
--write-changes .
```
using the latest git version of `codespell` as per [these
instructions](https://github.com/codespell-project/codespell#user-content-updating).
Then I manually checked each change using `git add -p`, made a few
manual fixups and dropped a load of incorrect changes.
There are still some outdated or loaded terms used in GLib, mostly to do
with git branch terminology. They will need to be changed later as part
of a wider migration of git terminology.
If I’ve missed anything, please file an issue!
Signed-off-by: Philip Withnall <withnall@endlessm.com>
262 lines
9.6 KiB
C
262 lines
9.6 KiB
C
/* GObject - GLib Type, Object, Parameter and Signal Library
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* Copyright (C) 1998-1999, 2000-2001 Tim Janik and 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 2.1 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
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* Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*
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* gvaluecollector.h: GValue varargs stubs
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*/
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/**
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* SECTION:value_collection
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* @Short_description: Converting varargs to generic values
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* @Title: Varargs Value Collection
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*
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* The macros in this section provide the varargs parsing support needed
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* in variadic GObject functions such as g_object_new() or g_object_set().
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* They currently support the collection of integral types, floating point
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* types and pointers.
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*/
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#ifndef __G_VALUE_COLLECTOR_H__
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#define __G_VALUE_COLLECTOR_H__
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#include <glib-object.h>
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G_BEGIN_DECLS
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/* we may want to add aggregate types here some day, if requested
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* by users. the basic C types are covered already, everything
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* smaller than an int is promoted to an integer and floats are
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* always promoted to doubles for varargs call constructions.
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*/
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enum /*< skip >*/
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{
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G_VALUE_COLLECT_INT = 'i',
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G_VALUE_COLLECT_LONG = 'l',
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G_VALUE_COLLECT_INT64 = 'q',
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G_VALUE_COLLECT_DOUBLE = 'd',
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G_VALUE_COLLECT_POINTER = 'p'
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};
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/* vararg union holding actual values collected
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*/
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/**
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* GTypeCValue:
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* @v_int: the field for holding integer values
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* @v_long: the field for holding long integer values
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* @v_int64: the field for holding 64 bit integer values
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* @v_double: the field for holding floating point values
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* @v_pointer: the field for holding pointers
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*
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* A union holding one collected value.
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*/
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union _GTypeCValue
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{
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gint v_int;
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glong v_long;
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gint64 v_int64;
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gdouble v_double;
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gpointer v_pointer;
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};
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/**
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* G_VALUE_COLLECT_INIT:
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* @value: a #GValue return location. @value must contain only 0 bytes.
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* @_value_type: the #GType to use for @value.
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* @var_args: the va_list variable; it may be evaluated multiple times
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* @flags: flags which are passed on to the collect_value() function of
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* the #GTypeValueTable of @value.
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* @__error: a #gchar** variable that will be modified to hold a g_new()
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* allocated error messages if something fails
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*
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* Collects a variable argument value from a va_list. We have to
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* implement the varargs collection as a macro, because on some systems
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* va_list variables cannot be passed by reference.
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*
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* Since: 2.24
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*/
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#define G_VALUE_COLLECT_INIT(value, _value_type, var_args, flags, __error) \
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G_STMT_START { \
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GValue *g_vci_val = (value); \
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guint g_vci_flags = (flags); \
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GTypeValueTable *g_vci_vtab = g_type_value_table_peek (_value_type); \
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const gchar *g_vci_collect_format = g_vci_vtab->collect_format; \
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GTypeCValue g_vci_cvalues[G_VALUE_COLLECT_FORMAT_MAX_LENGTH] = { { 0, }, }; \
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guint g_vci_n_values = 0; \
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\
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g_vci_val->g_type = _value_type; /* value_meminit() from gvalue.c */ \
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while (*g_vci_collect_format) \
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{ \
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GTypeCValue *g_vci_cvalue = g_vci_cvalues + g_vci_n_values++; \
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\
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switch (*g_vci_collect_format++) \
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{ \
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case G_VALUE_COLLECT_INT: \
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g_vci_cvalue->v_int = va_arg ((var_args), gint); \
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break; \
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case G_VALUE_COLLECT_LONG: \
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g_vci_cvalue->v_long = va_arg ((var_args), glong); \
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break; \
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case G_VALUE_COLLECT_INT64: \
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g_vci_cvalue->v_int64 = va_arg ((var_args), gint64); \
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break; \
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case G_VALUE_COLLECT_DOUBLE: \
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g_vci_cvalue->v_double = va_arg ((var_args), gdouble); \
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break; \
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case G_VALUE_COLLECT_POINTER: \
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g_vci_cvalue->v_pointer = va_arg ((var_args), gpointer); \
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break; \
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default: \
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g_assert_not_reached (); \
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} \
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} \
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*(__error) = g_vci_vtab->collect_value (g_vci_val, \
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g_vci_n_values, \
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g_vci_cvalues, \
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g_vci_flags); \
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} G_STMT_END
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/**
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* G_VALUE_COLLECT:
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* @value: a #GValue return location. @value is supposed to be initialized
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* according to the value type to be collected
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* @var_args: the va_list variable; it may be evaluated multiple times
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* @flags: flags which are passed on to the collect_value() function of
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* the #GTypeValueTable of @value.
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* @__error: a #gchar** variable that will be modified to hold a g_new()
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* allocated error messages if something fails
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*
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* Collects a variable argument value from a va_list. We have to
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* implement the varargs collection as a macro, because on some systems
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* va_list variables cannot be passed by reference.
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*
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* Note: If you are creating the @value argument just before calling this macro,
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* you should use the #G_VALUE_COLLECT_INIT variant and pass the uninitialized
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* #GValue. That variant is faster than #G_VALUE_COLLECT.
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*/
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#define G_VALUE_COLLECT(value, var_args, flags, __error) G_STMT_START { \
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GValue *g_vc_value = (value); \
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GType g_vc_value_type = G_VALUE_TYPE (g_vc_value); \
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GTypeValueTable *g_vc_vtable = g_type_value_table_peek (g_vc_value_type); \
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\
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if (g_vc_vtable->value_free) \
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g_vc_vtable->value_free (g_vc_value); \
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memset (g_vc_value->data, 0, sizeof (g_vc_value->data)); \
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\
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G_VALUE_COLLECT_INIT(value, g_vc_value_type, var_args, flags, __error); \
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} G_STMT_END
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/**
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* G_VALUE_COLLECT_SKIP:
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* @_value_type: the #GType of the value to skip
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* @var_args: the va_list variable; it may be evaluated multiple times
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*
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* Skip an argument of type @_value_type from @var_args.
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*/
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#define G_VALUE_COLLECT_SKIP(_value_type, var_args) \
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G_STMT_START { \
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GTypeValueTable *g_vcs_vtable = g_type_value_table_peek (_value_type); \
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const gchar *g_vcs_collect_format = g_vcs_vtable->collect_format; \
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\
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while (*g_vcs_collect_format) \
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{ \
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switch (*g_vcs_collect_format++) \
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{ \
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case G_VALUE_COLLECT_INT: \
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va_arg ((var_args), gint); \
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break; \
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case G_VALUE_COLLECT_LONG: \
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va_arg ((var_args), glong); \
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break; \
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case G_VALUE_COLLECT_INT64: \
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va_arg ((var_args), gint64); \
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break; \
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case G_VALUE_COLLECT_DOUBLE: \
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va_arg ((var_args), gdouble); \
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break; \
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case G_VALUE_COLLECT_POINTER: \
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va_arg ((var_args), gpointer); \
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break; \
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default: \
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g_assert_not_reached (); \
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} \
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} \
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} G_STMT_END
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/**
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* G_VALUE_LCOPY:
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* @value: a #GValue to store into the @var_args; this must be initialized
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* and set
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* @var_args: the va_list variable; it may be evaluated multiple times
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* @flags: flags which are passed on to the lcopy_value() function of
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* the #GTypeValueTable of @value.
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* @__error: a #gchar** variable that will be modified to hold a g_new()
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* allocated error message if something fails
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*
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* Stores a value’s value into one or more argument locations from a va_list.
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* This is the inverse of G_VALUE_COLLECT().
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*/
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#define G_VALUE_LCOPY(value, var_args, flags, __error) \
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G_STMT_START { \
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const GValue *g_vl_value = (value); \
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guint g_vl_flags = (flags); \
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GType g_vl_value_type = G_VALUE_TYPE (g_vl_value); \
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GTypeValueTable *g_vl_vtable = g_type_value_table_peek (g_vl_value_type); \
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const gchar *g_vl_lcopy_format = g_vl_vtable->lcopy_format; \
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GTypeCValue g_vl_cvalues[G_VALUE_COLLECT_FORMAT_MAX_LENGTH] = { { 0, }, }; \
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guint g_vl_n_values = 0; \
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\
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while (*g_vl_lcopy_format) \
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{ \
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GTypeCValue *g_vl_cvalue = g_vl_cvalues + g_vl_n_values++; \
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\
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switch (*g_vl_lcopy_format++) \
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{ \
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case G_VALUE_COLLECT_INT: \
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g_vl_cvalue->v_int = va_arg ((var_args), gint); \
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break; \
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case G_VALUE_COLLECT_LONG: \
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g_vl_cvalue->v_long = va_arg ((var_args), glong); \
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break; \
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case G_VALUE_COLLECT_INT64: \
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g_vl_cvalue->v_int64 = va_arg ((var_args), gint64); \
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break; \
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case G_VALUE_COLLECT_DOUBLE: \
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g_vl_cvalue->v_double = va_arg ((var_args), gdouble); \
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break; \
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case G_VALUE_COLLECT_POINTER: \
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g_vl_cvalue->v_pointer = va_arg ((var_args), gpointer); \
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break; \
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default: \
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g_assert_not_reached (); \
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} \
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} \
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*(__error) = g_vl_vtable->lcopy_value (g_vl_value, \
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g_vl_n_values, \
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g_vl_cvalues, \
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g_vl_flags); \
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} G_STMT_END
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/**
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* G_VALUE_COLLECT_FORMAT_MAX_LENGTH:
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*
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* The maximal number of #GTypeCValues which can be collected for a
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* single #GValue.
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*/
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#define G_VALUE_COLLECT_FORMAT_MAX_LENGTH (8)
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G_END_DECLS
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#endif /* __G_VALUE_COLLECTOR_H__ */
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