Source/JavaScriptCore/runtime/IntlSegmentDataObject.h

/*
 * Copyright (C) 2026 Anthropic PBC.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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#pragma once

#include "IntlSegmenter.h"
#include "JSGlobalObject.h"
#include "ObjectConstructor.h"

namespace JSC {

static constexpr PropertyOffset segmentDataObjectSegmentPropertyOffset = 0;
static constexpr PropertyOffset segmentDataObjectIndexPropertyOffset = 1;
static constexpr PropertyOffset segmentDataObjectInputPropertyOffset = 2;
static constexpr PropertyOffset segmentDataObjectIsWordLikePropertyOffset = 3;

Structure* createSegmentDataObjectStructure(VM&, JSGlobalObject&);
Structure* createSegmentDataObjectWithIsWordLikeStructure(VM&, JSGlobalObject&);

ALWAYS_INLINE JSObject* createSegmentDataObject(JSGlobalObject* globalObject, JSString* string, int32_t startIndex, int32_t endIndex, UBreakIterator& segmenter, IntlSegmenter::Granularity granularity)
{
    VM& vm = globalObject->vm();
    auto scope = DECLARE_THROW_SCOPE(vm);

    JSString* segment = jsSubstring(globalObject, string, startIndex, endIndex - startIndex);
    RETURN_IF_EXCEPTION(scope, nullptr);

    Structure* structure = (granularity == IntlSegmenter::Granularity::Word)
        ? globalObject->segmentDataObjectWithIsWordLikeStructure()
        : globalObject->segmentDataObjectStructure();

    JSObject* result = constructEmptyObject(vm, structure);
    result->putDirectOffset(vm, segmentDataObjectSegmentPropertyOffset, segment);
    result->putDirectOffset(vm, segmentDataObjectIndexPropertyOffset, jsNumber(startIndex));
    result->putDirectOffset(vm, segmentDataObjectInputPropertyOffset, string);

    if (granularity == IntlSegmenter::Granularity::Word) {
        int32_t ruleStatus = ubrk_getRuleStatus(&segmenter);
        result->putDirectOffset(vm, segmentDataObjectIsWordLikePropertyOffset,
            jsBoolean(!(ruleStatus >= UBRK_WORD_NONE && ruleStatus <= UBRK_WORD_NONE_LIMIT)));
    }

    return result;
}

} // namespace JSC