| // Copyright 2018 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef V8_INTL_SUPPORT |
| #error Internationalization is expected to be enabled. |
| #endif // V8_INTL_SUPPORT |
| |
| #ifndef V8_OBJECTS_JS_SEGMENT_ITERATOR_H_ |
| #define V8_OBJECTS_JS_SEGMENT_ITERATOR_H_ |
| |
| #include "src/execution/isolate.h" |
| #include "src/heap/factory.h" |
| #include "src/objects/js-segmenter.h" |
| #include "src/objects/managed.h" |
| #include "src/objects/objects.h" |
| #include "unicode/uversion.h" |
| |
| // Has to be the last include (doesn't have include guards): |
| #include "src/objects/object-macros.h" |
| |
| namespace U_ICU_NAMESPACE { |
| class BreakIterator; |
| class UnicodeString; |
| } // namespace U_ICU_NAMESPACE |
| |
| namespace v8 { |
| namespace internal { |
| |
| class JSSegmentIterator : public JSObject { |
| public: |
| // ecma402 #sec-CreateSegmentIterator |
| V8_WARN_UNUSED_RESULT static MaybeHandle<JSSegmentIterator> Create( |
| Isolate* isolate, icu::BreakIterator* icu_break_iterator, |
| JSSegmenter::Granularity granularity, Handle<String> string); |
| |
| // ecma402 #sec-segment-iterator-prototype-next |
| V8_WARN_UNUSED_RESULT static MaybeHandle<JSReceiver> Next( |
| Isolate* isolate, Handle<JSSegmentIterator> segment_iterator_holder); |
| |
| // ecma402 #sec-segment-iterator-prototype-following |
| static Maybe<bool> Following( |
| Isolate* isolate, Handle<JSSegmentIterator> segment_iterator_holder, |
| Handle<Object> from); |
| |
| // ecma402 #sec-segment-iterator-prototype-preceding |
| static Maybe<bool> Preceding( |
| Isolate* isolate, Handle<JSSegmentIterator> segment_iterator_holder, |
| Handle<Object> from); |
| |
| // ecma402 #sec-segment-iterator-prototype-index |
| static Handle<Object> Index( |
| Isolate* isolate, Handle<JSSegmentIterator> segment_iterator_holder); |
| |
| Handle<String> GranularityAsString() const; |
| |
| DECL_BOOLEAN_ACCESSORS(is_break_type_set) |
| |
| // ecma402 #sec-segment-iterator-prototype-breakType |
| Handle<Object> BreakType() const; |
| |
| V8_WARN_UNUSED_RESULT MaybeHandle<String> GetSegment(Isolate* isolate, |
| int32_t start, |
| int32_t end) const; |
| |
| DECL_CAST(JSSegmentIterator) |
| |
| // SegmentIterator accessors. |
| DECL_ACCESSORS(icu_break_iterator, Managed<icu::BreakIterator>) |
| DECL_ACCESSORS(unicode_string, Managed<icu::UnicodeString>) |
| |
| DECL_PRINTER(JSSegmentIterator) |
| DECL_VERIFIER(JSSegmentIterator) |
| |
| inline void set_granularity(JSSegmenter::Granularity granularity); |
| inline JSSegmenter::Granularity granularity() const; |
| |
| // Bit positions in |flags|. |
| #define FLAGS_BIT_FIELDS(V, _) \ |
| V(GranularityBits, JSSegmenter::Granularity, 2, _) \ |
| V(BreakTypeSetBits, bool, 1, _) |
| DEFINE_BIT_FIELDS(FLAGS_BIT_FIELDS) |
| #undef FLAGS_BIT_FIELDS |
| |
| STATIC_ASSERT(JSSegmenter::Granularity::GRAPHEME <= GranularityBits::kMax); |
| STATIC_ASSERT(JSSegmenter::Granularity::WORD <= GranularityBits::kMax); |
| STATIC_ASSERT(JSSegmenter::Granularity::SENTENCE <= GranularityBits::kMax); |
| |
| // [flags] Bit field containing various flags about the function. |
| DECL_INT_ACCESSORS(flags) |
| |
| // Layout description. |
| DEFINE_FIELD_OFFSET_CONSTANTS(JSObject::kHeaderSize, |
| TORQUE_GENERATED_JSSEGMENT_ITERATOR_FIELDS) |
| |
| OBJECT_CONSTRUCTORS(JSSegmentIterator, JSObject); |
| }; |
| |
| } // namespace internal |
| } // namespace v8 |
| |
| #include "src/objects/object-macros-undef.h" |
| |
| #endif // V8_OBJECTS_JS_SEGMENT_ITERATOR_H_ |