tryReadMapHeader method
Implementation
int? tryReadMapHeader() {
int? code = _reader.tryReadUint8();
if (code == null) {
return null;
}
switch (code) {
case MessagePackCode.map16:
return _reader.tryReadUint16();
case MessagePackCode.map32:
return _reader.tryReadInt32();
default:
if (code >= MessagePackCode.minFixMap &&
code <= MessagePackCode.maxFixMap) {
return code & 0xF;
}
throw _throwInvalidCode(code);
}
}