/// <summary>
/// Parses the current JSON token value from the source as a <see cref="DateTimeOffset"/>.
/// Returns <see langword="true"/> if the entire UTF-8 encoded token value can be successfully
/// parsed to a <see cref="DateTimeOffset"/> value.
/// Returns <see langword="false"/> otherwise.
/// </summary>
/// <exception cref="InvalidOperationException">
/// Thrown if trying to get the value of a JSON token that is not a <see cref="JsonTokenType.String"/>.
/// <seealso cref="TokenType" />
/// </exception>
public bool TryGetDateTimeOffset(out DateTimeOffset value)
{
if (TokenType != JsonTokenType.String)
{
throw ThrowHelper.GetInvalidOperationException_ExpectedString(TokenType);
}
ReadOnlySpan <byte> span = stackalloc byte[0];
if (HasValueSequence)
{
long sequenceLength = ValueSequence.Length;
if (!JsonHelpers.IsValidDateTimeOffsetParseLength(sequenceLength))
{
value = default;
return(false);
}
Debug.Assert(sequenceLength <= JsonConstants.MaximumEscapedDateTimeOffsetParseLength);
Span <byte> stackSpan = stackalloc byte[(int)sequenceLength];
ValueSequence.CopyTo(stackSpan);
span = stackSpan;
}
else
{
if (!JsonHelpers.IsValidDateTimeOffsetParseLength(ValueSpan.Length))
{
value = default;
return(false);
}
span = ValueSpan;
}
if (_stringHasEscaping)
{
return(JsonReaderHelper.TryGetEscapedDateTimeOffset(span, out value));
}
Debug.Assert(span.IndexOf(JsonConstants.BackSlash) == -1);
if (JsonHelpers.TryParseAsISO(span, out DateTimeOffset tmp))
{
value = tmp;
return(true);
}
value = default;
return(false);
}
internal bool TryGetDateTimeOffsetCore(out DateTimeOffset value)
{
ReadOnlySpan <byte> span = stackalloc byte[0];
if (HasValueSequence)
{
long sequenceLength = ValueSequence.Length;
if (!JsonHelpers.IsValidDateTimeOffsetParseLength(sequenceLength))
{
value = default;
return(false);
}
Debug.Assert(sequenceLength <= JsonConstants.MaximumEscapedDateTimeOffsetParseLength);
Span <byte> stackSpan = stackalloc byte[(int)sequenceLength];
ValueSequence.CopyTo(stackSpan);
span = stackSpan;
}
else
{
if (!JsonHelpers.IsValidDateTimeOffsetParseLength(ValueSpan.Length))
{
value = default;
return(false);
}
span = ValueSpan;
}
if (_stringHasEscaping)
{
return(JsonReaderHelper.TryGetEscapedDateTimeOffset(span, out value));
}
Debug.Assert(span.IndexOf(JsonConstants.BackSlash) == -1);
if (JsonHelpers.TryParseAsISO(span, out DateTimeOffset tmp))
{
value = tmp;
return(true);
}
value = default;
return(false);
}