static int UTF16ToUTF8()

in skiko/src/jvmMain/cpp/common/interop.cc [983:1013]

• 28 lines of code
• 7 McCabe index (conditional complexity)

static int UTF16ToUTF8(char dst[], int dstCapacity, const uint16_t src[], size_t srcLength) {
    if (!dst) {
        dstCapacity = 0;
    }

    int dstLength = 0;
    const char* endDst = dst + dstCapacity;
    const uint16_t* endSrc = src + srcLength;
    while (src < endSrc) {
        SkUnichar uni = NextUTF16(&src, endSrc);
        if (uni < 0) {
            return -1;
        }

        char utf8[SkUTF::kMaxBytesInUTF8Sequence];
        size_t count = SkUTF::ToUTF8(uni, utf8);
        if (count == 0) {
            return -1;
        }
        dstLength += count;

        if (dst) {
            const char* elems = utf8;
            while (dst < endDst && count > 0) {
                *dst++ = *elems++;
                count -= 1;
            }
        }
    }
    return dstLength;
}