mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2026-04-18 18:00:31 +00:00
8b8136b480
Keep the primitive string that segment() creates alongside the UTF-16 buffer used by LibUnicode. Segment data objects can then return lazy Substring instances for "segment" and reuse the original PrimitiveString for "input" instead of copying both strings. Add a rope-backed UTF-16 segmenter test that exercises both containing() and iterator results.
42 lines
1.5 KiB
C++
42 lines
1.5 KiB
C++
/*
|
|
* Copyright (c) 2022, Idan Horowitz <idan.horowitz@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <LibJS/Runtime/GlobalObject.h>
|
|
#include <LibJS/Runtime/Intl/Segments.h>
|
|
#include <LibJS/Runtime/Intl/SegmentsPrototype.h>
|
|
|
|
namespace JS::Intl {
|
|
|
|
GC_DEFINE_ALLOCATOR(Segments);
|
|
|
|
// 19.5.1 CreateSegmentsObject ( segmenter, string ), https://tc39.es/ecma402/#sec-createsegmentsobject
|
|
GC::Ref<Segments> Segments::create(Realm& realm, Unicode::Segmenter const& segmenter, GC::Ref<PrimitiveString> string)
|
|
{
|
|
// 1. Let internalSlotsList be « [[SegmentsSegmenter]], [[SegmentsString]] ».
|
|
// 2. Let segments be OrdinaryObjectCreate(%IntlSegmentsPrototype%, internalSlotsList).
|
|
// 3. Set segments.[[SegmentsSegmenter]] to segmenter.
|
|
// 4. Set segments.[[SegmentsString]] to string.
|
|
// 5. Return segments.
|
|
return realm.create<Segments>(realm, segmenter, move(string));
|
|
}
|
|
|
|
// 19.5 Segments Objects, https://tc39.es/ecma402/#sec-segments-objects
|
|
Segments::Segments(Realm& realm, Unicode::Segmenter const& segmenter, GC::Ref<PrimitiveString> string)
|
|
: Object(ConstructWithPrototypeTag::Tag, realm.intrinsics().intl_segments_prototype())
|
|
, m_segments_segmenter(segmenter.clone())
|
|
, m_segments_string_value(string)
|
|
, m_segments_string(string->utf16_string())
|
|
{
|
|
m_segments_segmenter->set_segmented_text(m_segments_string);
|
|
}
|
|
|
|
void Segments::visit_edges(Cell::Visitor& visitor)
|
|
{
|
|
Base::visit_edges(visitor);
|
|
visitor.visit(m_segments_string_value);
|
|
}
|
|
|
|
}
|