public void HasValue <TValue>(Func <TEntity, TValue> converter)
{
var native = this.converter.Get <TValue>();
TreeEncoderDescriptor <TState, TNative, TEntity> .BindValue(this.definition, e => native(converter(e)));
this.definition.Callback = (reader, state, entity) => reader.WriteAsValue(state, native(converter(entity)));
}
public void HasValue()
{
var converter = this.converter.Get <TEntity>();
TreeEncoderDescriptor <TState, TNative, TEntity> .BindValue(this.definition, converter);
}