59 Binary Binary::fromBase64(const String& base64, bool* success) {  in fromBase64()  argument
60   if (base64.isEmpty()) {  in fromBase64()
67   if (base64.length() % 4 != 0 || base64.length() + 4 < base64.length()) {  in fromBase64()
72   result.reserve(3 * base64.length() / 4);  in fromBase64()
75   for (size_t i = 0; i < base64.length(); i += 4) {  in fromBase64()
77     if (!DecodeByte(base64[i + 0]).To(&a)) return Binary::fromSpan(nullptr, 0);  in fromBase64()
78     if (!DecodeByte(base64[i + 1]).To(&b)) return Binary::fromSpan(nullptr, 0);  in fromBase64()
79     if (!DecodeByte(base64[i + 2]).To(&c)) {  in fromBase64()
81       if (i + 4 < base64.length() || base64[i + 2] != pad ||  in fromBase64()
82           base64[i + 3] != pad) {  in fromBase64()
86     if (!DecodeByte(base64[i + 3]).To(&d)) {  in fromBase64()
88       if (i + 4 < base64.length() || base64[i + 3] != pad) {  in fromBase64()
94     if (base64[i + 2] != '=') result.push_back((0xFF & (b << 4)) | (c >> 2));  in fromBase64()
95     if (base64[i + 3] != '=') result.push_back((0xFF & (c << 6)) | d);  in fromBase64()