in SocketRocket/SRWebSocket.m [1616:1627]
static inline int32_t validate_dispatch_data_partial_string(NSData *data) {
static const int maxCodepointSize = 3;
for (int i = 0; i < maxCodepointSize; i++) {
NSString *str = [[NSString alloc] initWithBytesNoCopy:(char *)data.bytes length:data.length - i encoding:NSUTF8StringEncoding freeWhenDone:NO];
if (str) {
return (int32_t)data.length - i;
}
}
return -1;
}