1// Copyright 2020 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#ifndef V8_OBJECTS_JS_SEGMENTS_H_
5#define V8_OBJECTS_JS_SEGMENTS_H_
6
7#ifndef V8_INTL_SUPPORT
8#error Internationalization is expected to be enabled.
9#endif  // V8_INTL_SUPPORT
10
11#include "src/base/bit-field.h"
12#include "src/execution/isolate.h"
13#include "src/heap/factory.h"
14#include "src/objects/js-segmenter.h"
15#include "src/objects/managed.h"
16#include "src/objects/objects.h"
17#include "unicode/uversion.h"
18
19// Has to be the last include (doesn't have include guards):
20#include "src/objects/object-macros.h"
21
22namespace U_ICU_NAMESPACE {
23class BreakIterator;
24class UnicodeString;
25}  // namespace U_ICU_NAMESPACE
26
27namespace v8 {
28namespace internal {
29
30#include "torque-generated/src/objects/js-segments-tq.inc"
31
32class JSSegments : public TorqueGeneratedJSSegments<JSSegments, JSObject> {
33 public:
34  // ecma402 #sec-createsegmentsobject
35  V8_WARN_UNUSED_RESULT static MaybeHandle<JSSegments> Create(
36      Isolate* isolate, Handle<JSSegmenter> segmenter, Handle<String> string);
37
38  // ecma402 #sec-%segmentsprototype%.containing
39  V8_WARN_UNUSED_RESULT static MaybeHandle<Object> Containing(
40      Isolate* isolate, Handle<JSSegments> segments_holder, double n);
41
42  // ecma402 #sec-createsegmentdataobject
43  V8_WARN_UNUSED_RESULT static MaybeHandle<Object> CreateSegmentDataObject(
44      Isolate* isolate, JSSegmenter::Granularity granularity,
45      icu::BreakIterator* break_iterator, const icu::UnicodeString& string,
46      int32_t start_index, int32_t end_index);
47
48  Handle<String> GranularityAsString(Isolate* isolate) const;
49
50  // SegmentIterator accessors.
51  DECL_ACCESSORS(icu_break_iterator, Managed<icu::BreakIterator>)
52  DECL_ACCESSORS(unicode_string, Managed<icu::UnicodeString>)
53
54  DECL_PRINTER(JSSegments)
55
56  inline void set_granularity(JSSegmenter::Granularity granularity);
57  inline JSSegmenter::Granularity granularity() const;
58
59  // Bit positions in |flags|.
60  DEFINE_TORQUE_GENERATED_JS_SEGMENT_ITERATOR_FLAGS()
61
62  STATIC_ASSERT(JSSegmenter::Granularity::GRAPHEME <= GranularityBits::kMax);
63  STATIC_ASSERT(JSSegmenter::Granularity::WORD <= GranularityBits::kMax);
64  STATIC_ASSERT(JSSegmenter::Granularity::SENTENCE <= GranularityBits::kMax);
65
66  TQ_OBJECT_CONSTRUCTORS(JSSegments)
67};
68
69}  // namespace internal
70}  // namespace v8
71
72#include "src/objects/object-macros-undef.h"
73
74#endif  // V8_OBJECTS_JS_SEGMENTS_H_
75