1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
/*
* Copyright (c) 2022, Idan Horowitz <idan.horowitz@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibJS/Runtime/AbstractOperations.h>
#include <LibJS/Runtime/Array.h>
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/Intl/AbstractOperations.h>
#include <LibJS/Runtime/Intl/Segmenter.h>
#include <LibJS/Runtime/Intl/SegmenterConstructor.h>
#include <LibJS/Runtime/Temporal/AbstractOperations.h>
namespace JS::Intl {
// 18.1 The Intl.Segmenter Constructor, https://tc39.es/ecma402/#sec-intl-segmenter-constructor
SegmenterConstructor::SegmenterConstructor(Realm& realm)
: NativeFunction(vm().names.Segmenter.as_string(), *realm.global_object().function_prototype())
{
}
void SegmenterConstructor::initialize(Realm& realm)
{
NativeFunction::initialize(realm);
auto& vm = this->vm();
// 18.2.1 Intl.Segmenter.prototype, https://tc39.es/ecma402/#sec-intl.segmenter.prototype
define_direct_property(vm.names.prototype, realm.global_object().intl_segmenter_prototype(), 0);
define_direct_property(vm.names.length, Value(0), Attribute::Configurable);
u8 attr = Attribute::Writable | Attribute::Configurable;
define_native_function(vm.names.supportedLocalesOf, supported_locales_of, 1, attr);
}
// 18.1.1 Intl.Segmenter ( [ locales [ , options ] ] ), https://tc39.es/ecma402/#sec-intl.segmenter
ThrowCompletionOr<Value> SegmenterConstructor::call()
{
// 1. If NewTarget is undefined, throw a TypeError exception.
return vm().throw_completion<TypeError>(global_object(), ErrorType::ConstructorWithoutNew, "Intl.Segmenter");
}
// 18.1.1 Intl.Segmenter ( [ locales [ , options ] ] ), https://tc39.es/ecma402/#sec-intl.segmenter
ThrowCompletionOr<Object*> SegmenterConstructor::construct(FunctionObject& new_target)
{
auto& vm = this->vm();
auto& global_object = this->global_object();
auto locales = vm.argument(0);
auto options_value = vm.argument(1);
// 2. Let internalSlotsList be « [[InitializedSegmenter]], [[Locale]], [[SegmenterGranularity]] ».
// 3. Let segmenter be ? OrdinaryCreateFromConstructor(NewTarget, "%Segmenter.prototype%", internalSlotsList).
auto* segmenter = TRY(ordinary_create_from_constructor<Segmenter>(global_object, new_target, &GlobalObject::intl_segmenter_prototype));
// 4. Let requestedLocales be ? CanonicalizeLocaleList(locales).
auto requested_locales = TRY(canonicalize_locale_list(global_object, locales));
// 5. Set options to ? GetOptionsObject(options).
auto* options = TRY(Temporal::get_options_object(global_object, options_value));
// 6. Let opt be a new Record.
LocaleOptions opt {};
// 7. Let matcher be ? GetOption(options, "localeMatcher", "string", « "lookup", "best fit" », "best fit").
auto matcher = TRY(get_option(global_object, *options, vm.names.localeMatcher, OptionType::String, { "lookup"sv, "best fit"sv }, "best fit"sv));
// 8. Set opt.[[localeMatcher]] to matcher.
opt.locale_matcher = matcher;
// 9. Let localeData be %Segmenter%.[[LocaleData]].
// 10. Let r be ResolveLocale(%Segmenter%.[[AvailableLocales]], requestedLocales, opt, %Segmenter%.[[RelevantExtensionKeys]], localeData).
auto result = resolve_locale(requested_locales, opt, {});
// 11. Set segmenter.[[Locale]] to r.[[locale]].
segmenter->set_locale(move(result.locale));
// 12. Let granularity be ? GetOption(options, "granularity", "string", « "grapheme", "word", "sentence" », "grapheme").
auto granularity = TRY(get_option(global_object, *options, vm.names.granularity, OptionType::String, { "grapheme"sv, "word"sv, "sentence"sv }, "grapheme"sv));
// 13. Set segmenter.[[SegmenterGranularity]] to granularity.
segmenter->set_segmenter_granularity(granularity.as_string().string());
// 14. Return segmenter.
return segmenter;
}
// 18.2.2 Intl.Segmenter.supportedLocalesOf ( locales [ , options ] ), https://tc39.es/ecma402/#sec-intl.segmenter.supportedlocalesof
JS_DEFINE_NATIVE_FUNCTION(SegmenterConstructor::supported_locales_of)
{
auto locales = vm.argument(0);
auto options = vm.argument(1);
// 1. Let availableLocales be %Segmenter%.[[AvailableLocales]].
// 2. Let requestedLocales be ? CanonicalizeLocaleList(locales).
auto requested_locales = TRY(canonicalize_locale_list(global_object, locales));
// 3. Return ? SupportedLocales(availableLocales, requestedLocales, options).
return TRY(supported_locales(global_object, requested_locales, options));
}
}
|
