b84f8fb55b
Some of these are allocated upon initialization of the intrinsics, and some lazily, but in neither case the getters actually return a nullptr. This saves us a whole bunch of pointer dereferences (as NonnullGCPtr has an `operator T&()`), and also has the interesting side effect of forcing us to explicitly use the FunctionObject& overload of call(), as passing a NonnullGCPtr is ambigous - it could implicitly be turned into a Value _or_ a FunctionObject& (so we have to dereference manually).
41 lines
1.7 KiB
C++
41 lines
1.7 KiB
C++
/*
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* Copyright (c) 2022, Idan Horowitz <idan.horowitz@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibJS/Runtime/GlobalObject.h>
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#include <LibJS/Runtime/Intl/SegmentIterator.h>
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#include <LibJS/Runtime/Intl/Segments.h>
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namespace JS::Intl {
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// 18.6.1 CreateSegmentIterator ( segmenter, string ), https://tc39.es/ecma402/#sec-createsegmentsobject
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NonnullGCPtr<SegmentIterator> SegmentIterator::create(Realm& realm, Segmenter& segmenter, Utf16View const& string, Segments const& segments)
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{
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// 1. Let internalSlotsList be « [[IteratingSegmenter]], [[IteratedString]], [[IteratedStringNextSegmentCodeUnitIndex]] ».
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// 2. Let iterator be OrdinaryObjectCreate(%SegmentIteratorPrototype%, internalSlotsList).
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// 3. Set iterator.[[IteratingSegmenter]] to segmenter.
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// 4. Set iterator.[[IteratedString]] to string.
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// 5. Set iterator.[[IteratedStringNextSegmentCodeUnitIndex]] to 0.
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// 6. Return iterator.
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return realm.heap().allocate<SegmentIterator>(realm, realm, segmenter, move(string), segments).release_allocated_value_but_fixme_should_propagate_errors();
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}
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// 18.6 Segment Iterator Objects, https://tc39.es/ecma402/#sec-segment-iterator-objects
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SegmentIterator::SegmentIterator(Realm& realm, Segmenter& segmenter, Utf16View const& string, Segments const& segments)
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: Object(ConstructWithPrototypeTag::Tag, realm.intrinsics().intl_segment_iterator_prototype())
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, m_iterating_segmenter(segmenter)
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, m_iterated_string(string)
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, m_segments(segments)
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{
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}
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void SegmentIterator::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_iterating_segmenter);
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visitor.visit(m_segments);
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}
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}
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