1// Copyright 2018 the V8 project authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef V8_INTL_SUPPORT
6#error Internationalization is expected to be enabled.
7#endif  // V8_INTL_SUPPORT
8
9#ifndef V8_OBJECTS_JS_PLURAL_RULES_H_
10#define V8_OBJECTS_JS_PLURAL_RULES_H_
11
12#include <set>
13#include <string>
14
15#include "src/base/bit-field.h"
16#include "src/execution/isolate.h"
17#include "src/heap/factory.h"
18#include "src/objects/intl-objects.h"
19#include "src/objects/managed.h"
20#include "src/objects/objects.h"
21
22// Has to be the last include (doesn't have include guards):
23#include "src/objects/object-macros.h"
24
25namespace U_ICU_NAMESPACE {
26class PluralRules;
27namespace number {
28class LocalizedNumberFormatter;
29class LocalizedNumberRangeFormatter;
30}  // namespace number
31}  // namespace U_ICU_NAMESPACE
32
33namespace v8 {
34namespace internal {
35
36#include "torque-generated/src/objects/js-plural-rules-tq.inc"
37
38class JSPluralRules
39    : public TorqueGeneratedJSPluralRules<JSPluralRules, JSObject> {
40 public:
41  V8_WARN_UNUSED_RESULT static MaybeHandle<JSPluralRules> New(
42      Isolate* isolate, Handle<Map> map, Handle<Object> locales,
43      Handle<Object> options);
44
45  static Handle<JSObject> ResolvedOptions(Isolate* isolate,
46                                          Handle<JSPluralRules> plural_rules);
47
48  V8_WARN_UNUSED_RESULT static MaybeHandle<String> ResolvePlural(
49      Isolate* isolate, Handle<JSPluralRules> plural_rules, double number);
50
51  V8_WARN_UNUSED_RESULT static MaybeHandle<String> ResolvePluralRange(
52      Isolate* isolate, Handle<JSPluralRules> plural_rules, double x, double y);
53
54  V8_EXPORT_PRIVATE static const std::set<std::string>& GetAvailableLocales();
55
56  // [[Type]] is one of the values "cardinal" or "ordinal",
57  // identifying the plural rules used.
58  enum class Type { CARDINAL, ORDINAL };
59  inline void set_type(Type type);
60  inline Type type() const;
61
62  Handle<String> TypeAsString() const;
63
64  DECL_PRINTER(JSPluralRules)
65
66  // Bit positions in |flags|.
67  DEFINE_TORQUE_GENERATED_JS_PLURAL_RULES_FLAGS()
68
69  STATIC_ASSERT(Type::CARDINAL <= TypeBit::kMax);
70  STATIC_ASSERT(Type::ORDINAL <= TypeBit::kMax);
71
72  DECL_ACCESSORS(icu_plural_rules, Managed<icu::PluralRules>)
73  DECL_ACCESSORS(icu_number_formatter,
74                 Managed<icu::number::LocalizedNumberFormatter>)
75  DECL_ACCESSORS(icu_number_range_formatter,
76                 Managed<icu::number::LocalizedNumberRangeFormatter>)
77
78  TQ_OBJECT_CONSTRUCTORS(JSPluralRules)
79};
80
81}  // namespace internal
82}  // namespace v8
83
84#include "src/objects/object-macros-undef.h"
85
86#endif  // V8_OBJECTS_JS_PLURAL_RULES_H_
87