63     // 9. Let first be the code unit value at index position in s.  in NextInternal()
64 …  uint16_t first = EcmaStringAccessor(string.GetObject<EcmaString>()).Get<false>(thread, position);  in NextInternal()  local
67 …// 10. If first < 0xD800 or first > 0xDBFF or position+1 = len, let resultString be the string con…  in NextInternal()
68     // single code unit first.  in NextInternal()
70     if (position + 1 == len || first < common::utf_helper::DECODE_LEAD_LOW ||  in NextInternal()
71         first > common::utf_helper::DECODE_LEAD_HIGH) {  in NextInternal()
72         if (EcmaStringAccessor::CanBeCompressed(&first, 1)) {  in NextInternal()
74             result.Update(singleCharTable->GetStringFromSingleCharTable(thread, first));  in NextInternal()
76             std::vector<uint16_t> resultString {first, 0x0};  in NextInternal()
83         // first.  in NextInternal()
84 …// c. Else, let resultString be the string consisting of the code unit first followed by the code …  in NextInternal()
87             std::vector<uint16_t> resultString {first, 0x0};  in NextInternal()
90             std::vector<uint16_t> resultString {first, second, 0x0};  in NextInternal()