/// <summary>
/// Creates a codec for a wrapper type of a struct - which must be Int32, Int64, UInt32, UInt64,
/// Bool, Single or Double.
/// </summary>
public static FieldCodec <T?> ForStructWrapper <T>(uint tag) where T : struct
{
var nestedCodec = WrapperCodecs.GetCodec <T>();
return(new FieldCodec <T?>(
input => WrapperCodecs.Read <T>(input, nestedCodec),
(output, value) => WrapperCodecs.Write <T>(output, value.Value, nestedCodec),
(CodedInputStream i, ref T? v) => v = WrapperCodecs.Read <T>(i, nestedCodec),
(ref T? v, T? v2) => { if (v2.HasValue)
{
v = v2;
}
return v.HasValue; },
value => value == null ? 0 : WrapperCodecs.CalculateSize <T>(value.Value, nestedCodec),
tag, 0,
null)); // Default value for the wrapper
}
/// <summary>
/// Creates a codec for a wrapper type of a struct - which must be Int32, Int64, UInt32, UInt64,
/// Bool, Single or Double.
/// </summary>
public static FieldCodec <T?> ForStructWrapper <T>(uint tag) where T : struct
{
var nestedCodec = WrapperCodecs.GetCodec <T>();
return(new FieldCodec <T?>(
WrapperCodecs.GetReader <T>(),
(ref WriteContext output, T? value) => WrapperCodecs.Write <T>(ref output, value.Value, nestedCodec),
(ref ParseContext ctx, ref T? v) => v = WrapperCodecs.Read <T>(ref ctx, nestedCodec),
(ref T? v, T? v2) => { if (v2.HasValue)
{
v = v2;
}
return v.HasValue; },
value => value == null ? 0 : WrapperCodecs.CalculateSize <T>(value.Value, nestedCodec),
tag, 0,
null)); // Default value for the wrapper
}