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/*
* Copyright (C) 2019 Igalia S.L.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#
include
"
config.h
"
#
include
"
JSCOptions.h
"
#
include
"
Options.h
"
#
include
<
glib/gi18n-lib.h
>
#
include
<
wtf/Vector.h
>
#
include
<
wtf/glib/GSpanExtras.h
>
#
include
<
wtf/glib/GUniquePtr.h
>
/*
*
* SECTION: JSCOptions
* @short_description: JavaScript options
* @title: JSCOptions
*
* JavaScript options allow changing the behavior of the JavaScript engine.
* They affect the way the engine works, so the options must be set
* at the very beginning of the program execution, before any other JavaScript
* API call. Most of the options are only useful for testing and debugging.
* Only a few of them are documented; you can use the undocumented options at
* your own risk. (You can find the list of options in the WebKit source code).
*
* The API allows to set and get any option using the types defined in #JSCOptionType.
* You can also iterate all the available options using jsc_options_foreach() and
* passing a #JSCOptionsFunc callback. If your application uses #GOptionContext to handle
* command line arguments, you can easily integrate the JSCOptions by adding the
* #GOptionGroup returned by jsc_options_get_option_group().
*
* Since: 2.24
*/
using
namespace
JSC
;
using
int32 =
int32_t
;
using
size =
size_t
;
static
bool
valueFromGValue
(
const
GValue*
gValue
,
bool
& value)
{
value =
g_value_get_boolean
(
gValue
);
return
true
;
}
static
void
valueToGValue
(
bool
value, GValue*
gValue
)
{
g_value_set_boolean
(
gValue
, value);
}
static
bool
valueFromGValue
(
const
GValue*
gValue
,
int32_t
& value)
{
value =
g_value_get_int
(
gValue
);
return
true
;
}
static
void
valueToGValue
(
int32_t
value, GValue*
gValue
)
{
g_value_set_int
(
gValue
, value);
}
#
if
CPU(ADDRESS64)
static
bool
valueFromGValue
(
const
GValue*
gValue
,
unsigned
& value)
{
value =
g_value_get_uint
(
gValue
);
return
true
;
}
static
void
valueToGValue
(
unsigned
value, GValue*
gValue
)
{
g_value_set_uint
(
gValue
, value);
}
#
endif
static
bool
valueFromGValue
(
const
GValue*
gValue
,
size_t
& value)
{
value =
GPOINTER_TO_SIZE
(
g_value_get_pointer
(
gValue
));
return
true
;
}
static
void
valueToGValue
(
size_t
value, GValue*
gValue
)
{
g_value_set_pointer
(
gValue
,
GSIZE_TO_POINTER
(value));
}
static
bool
valueFromGValue
(
const
GValue*
gValue
,
const
char
*& value)
{
value =
g_value_dup_string
(
gValue
);
return
true
;
}
static
void
valueToGValue
(
const
char
* value, GValue*
gValue
)
{
g_value_set_string
(
gValue
, value);
}
static
bool
valueFromGValue
(
const
GValue*
gValue
,
double
& value)
{
value =
g_value_get_double
(
gValue
);
return
true
;
}
static
void
valueToGValue
(
double
value, GValue*
gValue
)
{
g_value_set_double
(
gValue
, value);
}
static
bool
valueFromGValue
(
const
GValue*
gValue
, OptionRange& value)
{
return
value.
init
(
g_value_get_string
(
gValue
) ?
g_value_get_string
(
gValue
) :
"
<null>
"
);
}
static
void
valueToGValue
(
const
OptionRange& value, GValue*
gValue
)
{
const
char
* rangeString = value.
rangeString
();
g_value_set_string
(
gValue
, !
g_strcmp0
(rangeString,
"
<null>
"
) ?
nullptr
: rangeString);
}
static
bool
valueFromGValue
(
const
GValue*
gValue
, GCLogging::Level& value)
{
switch
(
g_value_get_uint
(
gValue
)) {
case
0
:
value = GCLogging::Level::None;
return
true
;
case
1
:
value = GCLogging::Level::Basic;
return
true
;
case
2
:
value = GCLogging::Level::Verbose;
return
true
;
default
:
break
;
}
return
false
;
}
static
void
valueToGValue
(GCLogging::Level value, GValue*
gValue
)
{
switch
(value) {
case
GCLogging::Level::None:
g_value_set_uint
(
gValue
,
0
);
break
;
case
GCLogging::Level::Basic:
g_value_set_uint
(
gValue
,
1
);
break
;
case
GCLogging::Level::Verbose:
g_value_set_uint
(
gValue
,
2
);
break
;
}
}
static
bool
valueFromGValue
(
const
GValue*
gValue
, OSLogType& value)
{
unsigned
optionValue =
g_value_get_uint
(
gValue
);
if
(optionValue >
static_cast
<
unsigned
>(OSLogType::Fault))
return
false
;
value =
static_cast
<OSLogType>(optionValue);
return
true
;
}
static
void
valueToGValue
(OSLogType value, GValue*
gValue
)
{
g_value_set_uint
(
gValue
,
static_cast
<
unsigned
>(value));
}
static
gboolean
jscOptionsSetValue
(
const
char
* option,
const
GValue* value)
{
Options::AllowUnfinalizedAccessScope scope;
#
define
SET_OPTION_VALUE
(
type_, name_, defaultValue_, availability_, description_
) \
if
(!
g_strcmp0
(#name_, option)) { \
OptionsStorage::type_ valueToSet; \
if
(!
valueFromGValue
(value, valueToSet)) \
return
FALSE
; \
Options::name_
() = valueToSet; \
return
TRUE
; \
}
Options::initialize
([] { });
FOR_EACH_JSC_OPTION
(
SET_OPTION_VALUE
)
#
undef
SET_OPTION_VALUE
return
FALSE
;
}
static
gboolean
jscOptionsGetValue
(
const
char
* option, GValue* value)
{
Options::AllowUnfinalizedAccessScope scope;
#
define
GET_OPTION_VALUE
(
type_, name_, defaultValue_, availability_, description_
) \
if
(!
g_strcmp0
(#name_, option)) { \
OptionsStorage::type_ valueToGet =
Options::name_
(); \
valueToGValue
(valueToGet, value); \
return
TRUE
; \
}
Options::initialize
([] { });
FOR_EACH_JSC_OPTION
(
GET_OPTION_VALUE
)
#
undef
GET_OPTION_VALUE
return
FALSE
;
}
/*
*
* jsc_options_set_boolean:
* @option: the option identifier
* @value: the value to set
*
* Set @option as a #gboolean value.
*
* Returns: %TRUE if option was correctly set or %FALSE otherwise.
*
* Since: 2.24
*/
gboolean
jsc_options_set_boolean
(
const
char
* option, gboolean value)
{
g_return_val_if_fail
(option,
FALSE
);
GValue
gValue
=
G_VALUE_INIT
;
g_value_init
(&
gValue
,
G_TYPE_BOOLEAN
);
g_value_set_boolean
(&
gValue
, value);
return
jscOptionsSetValue
(option, &
gValue
);
}
/*
*
* jsc_options_get_boolean:
* @option: the option identifier
* @value: (out): return location for the option value
*
* Get @option as a #gboolean value.
*
* Returns: %TRUE if @value has been set or %FALSE if the option doesn't exist
*
* Since: 2.24
*/
gboolean
jsc_options_get_boolean
(
const
char
* option, gboolean* value)
{
g_return_val_if_fail
(option,
FALSE
);
g_return_val_if_fail
(value,
FALSE
);
GValue
gValue
=
G_VALUE_INIT
;
g_value_init
(&
gValue
,
G_TYPE_BOOLEAN
);
if
(!
jscOptionsGetValue
(option, &
gValue
))
return
FALSE
;
*value =
g_value_get_boolean
(&
gValue
);
return
TRUE
;
}
/*
*
* jsc_options_set_int:
* @option: the option identifier
* @value: the value to set
*
* Set @option as a #gint value.
*
* Returns: %TRUE if option was correctly set or %FALSE otherwise.
*
* Since: 2.24
*/
gboolean
jsc_options_set_int
(
const
char
* option, gint value)
{
g_return_val_if_fail
(option,
FALSE
);
GValue
gValue
=
G_VALUE_INIT
;
g_value_init
(&
gValue
,
G_TYPE_INT
);
g_value_set_int
(&
gValue
, value);
return
jscOptionsSetValue
(option, &
gValue
);
}
/*
*
* jsc_options_get_int:
* @option: the option identifier
* @value: (out): return location for the option value
*
* Get @option as a #gint value.
*
* Returns: %TRUE if @value has been set or %FALSE if the option doesn't exist
*
* Since: 2.24
*/
gboolean
jsc_options_get_int
(
const
char
* option, gint* value)
{
g_return_val_if_fail
(option,
FALSE
);
g_return_val_if_fail
(value,
FALSE
);
GValue
gValue
=
G_VALUE_INIT
;
g_value_init
(&
gValue
,
G_TYPE_INT
);
if
(!
jscOptionsGetValue
(option, &
gValue
))
return
FALSE
;
*value =
g_value_get_int
(&
gValue
);
return
TRUE
;
}
/*
*
* jsc_options_set_uint:
* @option: the option identifier
* @value: the value to set
*
* Set @option as a #guint value.
*
* Returns: %TRUE if option was correctly set or %FALSE otherwise.
*
* Since: 2.24
*/
gboolean
jsc_options_set_uint
(
const
char
* option, guint value)
{
g_return_val_if_fail
(option,
FALSE
);
GValue
gValue
=
G_VALUE_INIT
;
g_value_init
(&
gValue
,
G_TYPE_UINT
);
g_value_set_uint
(&
gValue
, value);
return
jscOptionsSetValue
(option, &
gValue
);
}
/*
*
* jsc_options_get_uint:
* @option: the option identifier
* @value: (out): return location for the option value
*
* Get @option as a #guint value.
*
* Returns: %TRUE if @value has been set or %FALSE if the option doesn't exist
*
* Since: 2.24
*/
gboolean
jsc_options_get_uint
(
const
char
* option, guint* value)
{
g_return_val_if_fail
(option,
FALSE
);
g_return_val_if_fail
(value,
FALSE
);
GValue
gValue
=
G_VALUE_INIT
;
g_value_init
(&
gValue
,
G_TYPE_UINT
);
if
(!
jscOptionsGetValue
(option, &
gValue
))
return
FALSE
;
*value =
g_value_get_uint
(&
gValue
);
return
TRUE
;
}
/*
*
* jsc_options_set_size:
* @option: the option identifier
* @value: the value to set
*
* Set @option as a #gsize value.
*
* Returns: %TRUE if option was correctly set or %FALSE otherwise.
*
* Since: 2.24
*/
gboolean
jsc_options_set_size
(
const
char
* option, gsize value)
{
g_return_val_if_fail
(option,
FALSE
);
GValue
gValue
=
G_VALUE_INIT
;
g_value_init
(&
gValue
,
G_TYPE_POINTER
);
g_value_set_pointer
(&
gValue
,
GSIZE_TO_POINTER
(value));
return
jscOptionsSetValue
(option, &
gValue
);
}
/*
*
* jsc_options_get_size:
* @option: the option identifier
* @value: (out): return location for the option value
*
* Get @option as a #gsize value.
*
* Returns: %TRUE if @value has been set or %FALSE if the option doesn't exist
*
* Since: 2.24
*/
gboolean
jsc_options_get_size
(
const
char
* option, gsize* value)
{
g_return_val_if_fail
(option,
FALSE
);
g_return_val_if_fail
(value,
FALSE
);
GValue
gValue
=
G_VALUE_INIT
;
g_value_init
(&
gValue
,
G_TYPE_POINTER
);
if
(!
jscOptionsGetValue
(option, &
gValue
))
return
FALSE
;
*value =
GPOINTER_TO_SIZE
(
g_value_get_pointer
(&
gValue
));
return
TRUE
;
}
/*
*
* jsc_options_set_double:
* @option: the option identifier
* @value: the value to set
*
* Set @option as a #gdouble value.
*
* Returns: %TRUE if option was correctly set or %FALSE otherwise.
*
* Since: 2.24
*/
gboolean
jsc_options_set_double
(
const
char
* option, gdouble value)
{
g_return_val_if_fail
(option,
FALSE
);
GValue
gValue
=
G_VALUE_INIT
;
g_value_init
(&
gValue
,
G_TYPE_DOUBLE
);
g_value_set_double
(&
gValue
, value);
return
jscOptionsSetValue
(option, &
gValue
);
}
/*
*
* jsc_options_get_double:
* @option: the option identifier
* @value: (out): return location for the option value
*
* Get @option as a #gdouble value.
*
* Returns: %TRUE if @value has been set or %FALSE if the option doesn't exist
*
* Since: 2.24
*/
gboolean
jsc_options_get_double
(
const
char
* option, gdouble* value)
{
g_return_val_if_fail
(option,
FALSE
);
g_return_val_if_fail
(value,
FALSE
);
GValue
gValue
=
G_VALUE_INIT
;
g_value_init
(&
gValue
,
G_TYPE_DOUBLE
);
if
(!
jscOptionsGetValue
(option, &
gValue
))
return
FALSE
;
*value =
g_value_get_double
(&
gValue
);
return
TRUE
;
}
/*
*
* jsc_options_set_string:
* @option: the option identifier
* @value: the value to set
*
* Set @option as a string.
*
* Returns: %TRUE if option was correctly set or %FALSE otherwise.
*
* Since: 2.24
*/
gboolean
jsc_options_set_string
(
const
char
* option,
const
char
* value)
{
g_return_val_if_fail
(option,
FALSE
);
GValue
gValue
=
G_VALUE_INIT
;
g_value_init
(&
gValue
,
G_TYPE_STRING
);
g_value_set_string
(&
gValue
, value);
bool
success =
jscOptionsSetValue
(option, &
gValue
);
g_value_unset
(&
gValue
);
return
success;
}
/*
*
* jsc_options_get_string:
* @option: the option identifier
* @value: (out): return location for the option value
*
* Get @option as a string.
*
* Returns: %TRUE if @value has been set or %FALSE if the option doesn't exist
*
* Since: 2.24
*/
gboolean
jsc_options_get_string
(
const
char
* option,
char
** value)
{
g_return_val_if_fail
(option,
FALSE
);
g_return_val_if_fail
(value,
FALSE
);
GValue
gValue
=
G_VALUE_INIT
;
g_value_init
(&
gValue
,
G_TYPE_STRING
);
if
(!
jscOptionsGetValue
(option, &
gValue
))
return
FALSE
;
*value =
g_value_dup_string
(&
gValue
);
g_value_unset
(&
gValue
);
return
TRUE
;
}
/*
*
* jsc_options_set_range_string:
* @option: the option identifier
* @value: the value to set
*
* Set @option as a range string. The string must be in the
* format <emphasis>[!]<low>[:<high>]</emphasis> where low and high are #guint values.
* Values between low and high (both included) will be considered in
* the range, unless <emphasis>!</emphasis> is used to invert the range.
*
* Returns: %TRUE if option was correctly set or %FALSE otherwise.
*
* Since: 2.24
*/
gboolean
jsc_options_set_range_string
(
const
char
* option,
const
char
* value)
{
g_return_val_if_fail
(option,
FALSE
);
GValue
gValue
=
G_VALUE_INIT
;
g_value_init
(&
gValue
,
G_TYPE_STRING
);
g_value_set_string
(&
gValue
, value);
bool
success =
jscOptionsSetValue
(option, &
gValue
);
g_value_unset
(&
gValue
);
return
success;
}
/*
*
* jsc_options_get_range_string:
* @option: the option identifier
* @value: (out): return location for the option value
*
* Get @option as a range string. The string must be in the
* format <emphasis>[!]<low>[:<high>]</emphasis> where low and high are #guint values.
* Values between low and high (both included) will be considered in
* the range, unless <emphasis>!</emphasis> is used to invert the range.
*
* Returns: %TRUE if @value has been set or %FALSE if the option doesn't exist
*
* Since: 2.24
*/
gboolean
jsc_options_get_range_string
(
const
char
* option,
char
** value)
{
g_return_val_if_fail
(option,
FALSE
);
g_return_val_if_fail
(value,
FALSE
);
GValue
gValue
=
G_VALUE_INIT
;
g_value_init
(&
gValue
,
G_TYPE_STRING
);
if
(!
jscOptionsGetValue
(option, &
gValue
))
return
FALSE
;
*value =
g_value_dup_string
(&
gValue
);
g_value_unset
(&
gValue
);
return
TRUE
;
}
static
JSCOptionType
jscOptionsType
(
bool
)
{
return
JSC_OPTION_BOOLEAN
;
}
static
JSCOptionType
jscOptionsType
(
int
)
{
return
JSC_OPTION_INT
;
}
#
if
CPU(ADDRESS64)
static
JSCOptionType
jscOptionsType
(
unsigned
)
{
return
JSC_OPTION_UINT
;
}
#
endif
static
JSCOptionType
jscOptionsType
(
size_t
)
{
return
JSC_OPTION_SIZE
;
}
static
JSCOptionType
jscOptionsType
(
double
)
{
return
JSC_OPTION_DOUBLE
;
}
static
JSCOptionType
jscOptionsType
(
const
char
*)
{
return
JSC_OPTION_STRING
;
}
static
JSCOptionType
jscOptionsType
(
const
OptionRange&)
{
return
JSC_OPTION_RANGE_STRING
;
}
static
JSCOptionType
jscOptionsType
(
const
OSLogType&)
{
return
JSC_OPTION_UINT
;
}
/*
*
* JSCOptionType:
* @JSC_OPTION_BOOLEAN: A #gboolean option type.
* @JSC_OPTION_INT: A #gint option type.
* @JSC_OPTION_UINT: A #guint option type.
* @JSC_OPTION_SIZE: A #gsize options type.
* @JSC_OPTION_DOUBLE: A #gdouble options type.
* @JSC_OPTION_STRING: A string option type.
* @JSC_OPTION_RANGE_STRING: A range string option type.
*
* Enum values for options types.
*
* Since: 2.24
*/
/*
*
* JSCOptionsFunc:
* @option: the option name
* @type: the option #JSCOptionType
* @description: (nullable): the option description, or %NULL
* @user_data: user data
*
* Function used to iterate options.
*
* Not that @description string is not localized.
*
* Returns: %TRUE to stop the iteration, or %FALSE otherwise
*
* Since: 2.24
*/
/*
*
* jsc_options_foreach:
* @function: (scope call): a #JSCOptionsFunc callback
* @user_data: callback user data
*
* Iterates all available options calling @function for each one. Iteration can
* stop early if @function returns %FALSE.
*
* Since: 2.24
*/
void
jsc_options_foreach
(JSCOptionsFunc function, gpointer userData)
{
g_return_if_fail
(function);
#
define
VISIT_OPTION
(
type_, name_, defaultValue_, availability_, description_
) \
if
(Options::Availability::availability_ == Options::Availability::Normal \
||
Options::isAvailable
(Options::name_##
ID
, Options::Availability::availability_)) { \
OptionsStorage::type_ defaultValue { }; \
auto
optionType =
jscOptionsType
(defaultValue); \
if
(
function
(#name_, optionType, description_, userData)) \
return
; \
}
Options::initialize
([] { });
FOR_EACH_JSC_OPTION
(
VISIT_OPTION
)
#
undef
VISIT_OPTION
}
WTF_ALLOW_UNSAFE_BUFFER_USAGE_BEGIN
//
GLib port
static
gboolean
setOptionEntry
(
const
char
* optionNameFull,
const
char
* value, gpointer, GError** error)
{
const
char
* optionName = optionNameFull +
6
;
//
Remove the --jsc- prefix.
GUniquePtr<
char
>
option
(
g_strdup_printf
(
"
%s=%s
"
, optionName, value));
if
(!
Options::setOption
(option.
get
())) {
g_set_error
(error,
G_OPTION_ERROR
,
G_OPTION_ERROR_BAD_VALUE
,
"
Failed parse value '%s' for %s
"
, value, optionNameFull);
return
FALSE
;
}
return
TRUE
;
}
WTF_ALLOW_UNSAFE_BUFFER_USAGE_END
/*
*
* jsc_options_get_option_group:
*
* Create a #GOptionGroup to handle JSCOptions as command line arguments.
* The options will be exposed as command line arguments with the form
* <emphasis>--jsc-<option>=<value></emphasis>.
* Each entry in the returned #GOptionGroup is configured to apply the
* corresponding option during command line parsing. Applications only need to
* pass the returned group to g_option_context_add_group(), and the rest will
* be taken care for automatically.
*
* Returns: (transfer full): a #GOptionGroup for the JSCOptions
*
* Since: 2.24
*/
GOptionGroup*
jsc_options_get_option_group
(
void
)
{
//
GOptionEntry works with const strings, so we need to keep the option names around.
auto
* names =
new
Vector<GUniquePtr<
char
>>;
GOptionGroup* group =
g_option_group_new
(
"
jsc
"
,
_
(
"
JSC Options
"
),
_
(
"
Show JSC Options
"
), names, [] (gpointer data) {
delete
static_cast
<Vector<GUniquePtr<
char
>>*>(data);
});
g_option_group_set_translation_domain
(group,
GETTEXT_PACKAGE
);
Vector<GOptionEntry> entries;
#
define
REGISTER_OPTION
(
type_, name_, defaultValue_, availability_, description_
) \
if
(Options::Availability::availability_ == Options::Availability::Normal \
||
Options::isAvailable
(Options::name_##
ID
, Options::Availability::availability_)) { \
GUniquePtr<
char
>
name
(
g_strdup_printf
(
"
jsc-%s
"
, #name_)); \
GOptionEntry entry { }; \
entry.
long_name
= name.
get
(); \
entry.
arg
=
G_OPTION_ARG_CALLBACK
; \
entry.
arg_data
=
reinterpret_cast
<gpointer>(setOptionEntry); \
entry.
description
= description_; \
entries.
append
(entry); \
names->
append
(
WTF::move
(name)); \
}
Options::initialize
([] { });
FOR_EACH_JSC_OPTION
(
REGISTER_OPTION
)
#
undef
REGISTER_OPTION
entries.
append
(GOptionEntry { });
g_option_group_add_entries
(group, entries.
span
().
data
());
return
group;
}
/*
*
* JSC_OPTIONS_USE_JIT:
*
* Allows the executable pages to be allocated for JIT and thunks if %TRUE.
* Option type: %JSC_OPTION_BOOLEAN
* Default value: %TRUE.
*
* Since: 2.24
*/
/*
*
* JSC_OPTIONS_USE_DFG:
*
* Allows the DFG JIT to be used if %TRUE.
* Option type: %JSC_OPTION_BOOLEAN
* Default value: %TRUE.
*
* Since: 2.24
*/
/*
*
* JSC_OPTIONS_USE_FTL:
*
* Allows the FTL JIT to be used if %TRUE.
* Option type: %JSC_OPTION_BOOLEAN
* Default value: %TRUE.
*
* Since: 2.24
*/
/*
*
* JSC_OPTIONS_USE_LLINT:
*
* Allows the LLINT to be used if %TRUE.
* Option type: %JSC_OPTION_BOOLEAN
* Default value: %TRUE.
*
* Since: 2.24
*/
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