text: public static IntsRef toUTF32(char[] s, int offset, int length, IntsRefBuilder scratch) {int charIdx = offset;int intIdx = 0;final int charLimit = offset + length;while(charIdx < charLimit) {scratch.grow(intIdx+1);final int utf32 = Character.codePointAt(s, charIdx, charLimit);scratch.setIntAt(intIdx, utf32);charIdx += Character.charCount(utf32);intIdx++;}scratch.setLength(intIdx);return scratch.get();}