/// <inheritdoc />
public override void DataField <TTarget, TSource>(
ref TTarget value,
string name,
TTarget defaultValue,
ReadConvertFunc <TTarget, TSource> ReadConvertFunc,
WriteConvertFunc <TTarget, TSource>?WriteConvertFunc = null,
bool alwaysWrite = false)
{
if (Reading)
{
foreach (var map in ReadMaps !)
{
if (map.TryGetNode(name, out var node))
{
value = ReadConvertFunc((TSource)NodeToType(typeof(TSource), node));
return;
}
}
value = defaultValue;
}
else
{
if (WriteConvertFunc == null)
{
// TODO: More verbosity diagnostics.
Logger.WarningS(LogCategory, "Field '{0}' not written due to lack of WriteConvertFunc.", name);
return;
}
// don't write if value is null or default
if (!alwaysWrite && IsValueDefault(name, value, defaultValue, WithFormat <TTarget> .NoFormat))
{
return;
}
var key = name;
var val = value == null?TypeToNode(WriteConvertFunc(defaultValue !)) : TypeToNode(WriteConvertFunc(value !));
// write the concrete type tag
AssignTag(typeof(TTarget), value, defaultValue, val);
WriteMap !.Add(key, val);
}
}
