public static TimeSpan DeserializeStatic(ref JsonReader reader, JsonSerializerOptions options)
{
var str = reader.ReadNotNullStringSegmentRaw();
var i = 0;
var to = str.Length;
// check day exists
var hasDay = false;
{
var foundDot = false;
var foundColon = false;
for (var j = i; j < str.Length; j++)
{
if (str[j] == '.')
{
if (foundColon)
{
break;
}
foundDot = true;
}
else if (str[j] == ':')
{
if (foundDot)
{
hasDay = true;
}
foundColon = true;
}
}
}
// check sign
var minus = false;
if (str[i] == '-')
{
minus = true;
i++;
}
var day = 0;
if (hasDay)
{
var poolArray = ArrayPool <byte> .Shared.Rent(256);
try
{
for (; str[i] != '.'; i++)
{
poolArray[day++] = str[i];
}
var jsonReader = new JsonReader(poolArray);
day = jsonReader.ReadInt32();
i++; // skip '.'
}
finally
{
ArrayPool <byte> .Shared.Return(poolArray);
}
}
var hour = (str[i++] - (byte)'0') * 10 + (str[i++] - (byte)'0');
if (str[i++] != (byte)':')
{
goto ERROR;
}
var minute = (str[i++] - (byte)'0') * 10 + (str[i++] - (byte)'0');
if (str[i++] != (byte)':')
{
goto ERROR;
}
var second = (str[i++] - (byte)'0') * 10 + (str[i++] - (byte)'0');
var ticks = 0;
if (i < to && str[i] == '.')
{
i++;
// *7.
if (!(i < to) || !IntegerConverter.IsNumber(str[i]))
{
goto END_TICKS;
}
ticks += (str[i] - (byte)'0') * 1000000;
i++;
if (!(i < to) || !IntegerConverter.IsNumber(str[i]))
{
goto END_TICKS;
}
ticks += (str[i] - (byte)'0') * 100000;
i++;
if (!(i < to) || !IntegerConverter.IsNumber(str[i]))
{
goto END_TICKS;
}
ticks += (str[i] - (byte)'0') * 10000;
i++;
if (!(i < to) || !IntegerConverter.IsNumber(str[i]))
{
goto END_TICKS;
}
ticks += (str[i] - (byte)'0') * 1000;
i++;
if (!(i < to) || !IntegerConverter.IsNumber(str[i]))
{
goto END_TICKS;
}
ticks += (str[i] - (byte)'0') * 100;
i++;
if (!(i < to) || !IntegerConverter.IsNumber(str[i]))
{
goto END_TICKS;
}
ticks += (str[i] - (byte)'0') * 10;
i++;
if (!(i < to) || !IntegerConverter.IsNumber(str[i]))
{
goto END_TICKS;
}
ticks += (str[i] - (byte)'0') * 1;
i++;
// others, lack of precision
while (i < to && IntegerConverter.IsNumber(str[i]))
{
i++;
}
}
END_TICKS:
// be careful to overflow
var ts = new TimeSpan(day, hour, minute, second);
var tk = TimeSpan.FromTicks(ticks);
return((minus)
? ts.Negate().Subtract(tk)
: ts.Add(tk));
ERROR:
#if SPAN_BUILTIN
throw new InvalidOperationException("invalid datetime format. value:" + StringEncoding.Utf8.GetString(str));
#else
throw new InvalidOperationException("invalid datetime format.");
#endif
}
public static DateTimeOffset DeserializeStatic(ref JsonReader reader, JsonSerializerOptions options)
{
var str = reader.ReadNotNullStringSegmentRaw();
var i = 0;
switch (str.Length)
{
// YYYY
case 4:
{
var y = (str[i++] - (byte)'0') * 1000 + (str[i++] - (byte)'0') * 100 + (str[i++] - (byte)'0') * 10 + (str[i] - (byte)'0');
return(new DateTimeOffset(y, 1, 1, 0, 0, 0, TimeSpan.Zero));
}
// YYYY-MM
case 7:
{
var y = (str[i++] - (byte)'0') * 1000 + (str[i++] - (byte)'0') * 100 + (str[i++] - (byte)'0') * 10 + (str[i++] - (byte)'0');
if (str[i++] != (byte)'-')
{
goto ERROR;
}
var m = (str[i++] - (byte)'0') * 10 + (str[i] - (byte)'0');
return(new DateTimeOffset(y, m, 1, 0, 0, 0, TimeSpan.Zero));
}
// YYYY-MM-DD
case 10:
{
var y = (str[i++] - (byte)'0') * 1000 + (str[i++] - (byte)'0') * 100 + (str[i++] - (byte)'0') * 10 + (str[i++] - (byte)'0');
if (str[i++] != (byte)'-')
{
goto ERROR;
}
var m = (str[i++] - (byte)'0') * 10 + (str[i++] - (byte)'0');
if (str[i++] != (byte)'-')
{
goto ERROR;
}
var d = (str[i++] - (byte)'0') * 10 + (str[i] - (byte)'0');
return(new DateTimeOffset(y, m, d, 0, 0, 0, TimeSpan.Zero));
}
}
// range-first section requires 19
if (str.Length < 19)
{
goto ERROR;
}
var year = (str[i++] - (byte)'0') * 1000 + (str[i++] - (byte)'0') * 100 + (str[i++] - (byte)'0') * 10 + (str[i++] - (byte)'0');
if (str[i++] != (byte)'-')
{
goto ERROR;
}
var month = (str[i++] - (byte)'0') * 10 + (str[i++] - (byte)'0');
if (str[i++] != (byte)'-')
{
goto ERROR;
}
var day = (str[i++] - (byte)'0') * 10 + (str[i++] - (byte)'0');
if (str[i++] != (byte)'T')
{
goto ERROR;
}
var hour = (str[i++] - (byte)'0') * 10 + (str[i++] - (byte)'0');
if (str[i++] != (byte)':')
{
goto ERROR;
}
var minute = (str[i++] - (byte)'0') * 10 + (str[i++] - (byte)'0');
if (str[i++] != (byte)':')
{
goto ERROR;
}
var second = (str[i++] - (byte)'0') * 10 + (str[i++] - (byte)'0');
var ticks = 0;
if (i < str.Length && str[i] == '.')
{
i++;
// *7.
if (!(i < str.Length) || !IntegerConverter.IsNumber(str[i]))
{
goto END_TICKS;
}
ticks += (str[i] - (byte)'0') * 1000000;
i++;
if (!(i < str.Length) || !IntegerConverter.IsNumber(str[i]))
{
goto END_TICKS;
}
ticks += (str[i] - (byte)'0') * 100000;
i++;
if (!(i < str.Length) || !IntegerConverter.IsNumber(str[i]))
{
goto END_TICKS;
}
ticks += (str[i] - (byte)'0') * 10000;
i++;
if (!(i < str.Length) || !IntegerConverter.IsNumber(str[i]))
{
goto END_TICKS;
}
ticks += (str[i] - (byte)'0') * 1000;
i++;
if (!(i < str.Length) || !IntegerConverter.IsNumber(str[i]))
{
goto END_TICKS;
}
ticks += (str[i] - (byte)'0') * 100;
i++;
if (!(i < str.Length) || !IntegerConverter.IsNumber(str[i]))
{
goto END_TICKS;
}
ticks += (str[i] - (byte)'0') * 10;
i++;
if (!(i < str.Length) || !IntegerConverter.IsNumber(str[i]))
{
goto END_TICKS;
}
ticks += (str[i] - (byte)'0') * 1;
i++;
// others, lack of precision
while (i < +str.Length && IntegerConverter.IsNumber(str[i]))
{
i++;
}
}
END_TICKS:
if ((i >= str.Length || str[i] != '-') && str[i] != '+')
{
return(new DateTimeOffset(year, month, day, hour, minute, second, TimeSpan.Zero).AddTicks(ticks));
}
{
if (!(i + 5 < str.Length))
{
goto ERROR;
}
var minus = str[i++] == '-';
var h = (str[i++] - (byte)'0') * 10 + (str[i++] - (byte)'0');
i++;
var m = (str[i++] - (byte)'0') * 10 + (str[i] - (byte)'0');
var offset = new TimeSpan(h, m, 0);
if (minus)
{
offset = offset.Negate();
}
return(new DateTimeOffset(year, month, day, hour, minute, second, offset).AddTicks(ticks));
}
ERROR:
#if SPAN_BUILTIN
throw new InvalidOperationException("invalid datetime format. value:" + StringEncoding.Utf8.GetString(str));
#else
unsafe
{
fixed(byte *ptr = &str[0])
{
throw new InvalidOperationException("invalid datetime format. value:" + StringEncoding.Utf8.GetString(ptr, str.Length));
}
}
#endif
}
public static DateTime DeserializeStatic(ref JsonReader reader, JsonSerializerOptions options)
{
var str = reader.ReadNotNullStringSegmentRaw();
var i = 0;
switch (str.Length)
{
// YYYY
case 4:
{
var y = (str[i++] - (byte)'0') * 1000 + (str[i++] - (byte)'0') * 100 + (str[i++] - (byte)'0') * 10 + (str[i] - (byte)'0');
return(new DateTime(y, 1, 1));
}
// YYYY-MM
case 7:
{
var y = (str[i++] - (byte)'0') * 1000 + (str[i++] - (byte)'0') * 100 + (str[i++] - (byte)'0') * 10 + (str[i++] - (byte)'0');
if (str[i++] != (byte)'-')
{
goto ERROR;
}
var m = (str[i++] - (byte)'0') * 10 + (str[i] - (byte)'0');
return(new DateTime(y, m, 1));
}
// YYYY-MM-DD
case 10:
{
var y = (str[i++] - (byte)'0') * 1000 + (str[i++] - (byte)'0') * 100 + (str[i++] - (byte)'0') * 10 + (str[i++] - (byte)'0');
if (str[i++] != (byte)'-')
{
goto ERROR;
}
var m = (str[i++] - (byte)'0') * 10 + (str[i++] - (byte)'0');
if (str[i++] != (byte)'-')
{
goto ERROR;
}
var d = (str[i++] - (byte)'0') * 10 + (str[i] - (byte)'0');
return(new DateTime(y, m, d));
}
}
// range-first section requires 19
if (str.Length < 19)
{
goto ERROR;
}
var year = (str[i++] - (byte)'0') * 1000 + (str[i++] - (byte)'0') * 100 + (str[i++] - (byte)'0') * 10 + (str[i++] - (byte)'0');
if (str[i++] != (byte)'-')
{
goto ERROR;
}
var month = (str[i++] - (byte)'0') * 10 + (str[i++] - (byte)'0');
if (str[i++] != (byte)'-')
{
goto ERROR;
}
var day = (str[i++] - (byte)'0') * 10 + (str[i++] - (byte)'0');
if (str[i++] != (byte)'T')
{
goto ERROR;
}
var hour = (str[i++] - (byte)'0') * 10 + (str[i++] - (byte)'0');
if (str[i++] != (byte)':')
{
goto ERROR;
}
var minute = (str[i++] - (byte)'0') * 10 + (str[i++] - (byte)'0');
if (str[i++] != (byte)':')
{
goto ERROR;
}
var second = (str[i++] - (byte)'0') * 10 + (str[i++] - (byte)'0');
var ticks = 0;
if (i < str.Length && str[i] == '.')
{
i++;
// *7.
if (!(i < str.Length) || !IntegerConverter.IsNumber(str[i]))
{
goto END_TICKS;
}
ticks += (str[i] - (byte)'0') * 1000000;
i++;
if (!(i < str.Length) || !IntegerConverter.IsNumber(str[i]))
{
goto END_TICKS;
}
ticks += (str[i] - (byte)'0') * 100000;
i++;
if (!(i < str.Length) || !IntegerConverter.IsNumber(str[i]))
{
goto END_TICKS;
}
ticks += (str[i] - (byte)'0') * 10000;
i++;
if (!(i < str.Length) || !IntegerConverter.IsNumber(str[i]))
{
goto END_TICKS;
}
ticks += (str[i] - (byte)'0') * 1000;
i++;
if (!(i < str.Length) || !IntegerConverter.IsNumber(str[i]))
{
goto END_TICKS;
}
ticks += (str[i] - (byte)'0') * 100;
i++;
if (!(i < str.Length) || !IntegerConverter.IsNumber(str[i]))
{
goto END_TICKS;
}
ticks += (str[i] - (byte)'0') * 10;
i++;
if (!(i < str.Length) || !IntegerConverter.IsNumber(str[i]))
{
goto END_TICKS;
}
ticks += (str[i] - (byte)'0') * 1;
i++;
// others, lack of precision
while (i < str.Length && IntegerConverter.IsNumber(str[i]))
{
i++;
}
}
END_TICKS:
var kind = DateTimeKind.Unspecified;
if (i < str.Length && str[i] == 'Z')
{
kind = DateTimeKind.Utc;
}
else if (i < str.Length && str[i] == '-' || str[i] == '+')
{
if (!(i + 5 < str.Length))
{
goto ERROR;
}
var minus = str[i++] == '-';
var h = (str[i++] - (byte)'0') * 10 + (str[i++] - (byte)'0');
i++;
var m = (str[i++] - (byte)'0') * 10 + (str[i] - (byte)'0');
var offset = new TimeSpan(h, m, 0);
if (minus)
{
offset = offset.Negate();
}
return(new DateTime(year, month, day, hour, minute, second, DateTimeKind.Utc).AddTicks(ticks).Subtract(offset).ToLocalTime());
}
return(new DateTime(year, month, day, hour, minute, second, kind).AddTicks(ticks));
ERROR:
#if SPAN_BUILTIN
throw new InvalidOperationException("invalid datetime format. value:" + StringEncoding.Utf8.GetString(str));
#else
throw new InvalidOperationException("invalid datetime format.");
#endif
}