object GetDefaultValue(string selector)
{
if (_defaultValues == null)
{
_defaultValues = new Dictionary <string, object>();
}
if (!_defaultValues.ContainsKey(selector))
{
var expr = CompileAccessorExpression(_typeParam, selector);
var acc = AccumulatorFactory.Create(Utils.StripNullableType(expr.Type));
_defaultValues[selector] = acc.GetValue();
}
return(_defaultValues[selector]);
}
public override void Step(T container, string selector)
{
var value = Accessor.Read(container, selector);
if (value != null)
{
if (_accumulator == null)
{
_accumulator = AccumulatorFactory.Create(value.GetType());
}
try {
_accumulator.Add(value);
} catch (FormatException) {
} catch (InvalidCastException) {
}
}
}