public virtual void Define <T>(string variation, Expression <Func <T> > definition, Action <T> afterCreation = null) where T : class
{
if (_costructors.ContainsKey <T>(variation))
{
throw new DuplicateBlueprintException(typeof(T), variation);
}
switch (definition.Body.NodeType)
{
case ExpressionType.MemberInit:
{
var memberInitExpression = ((MemberInitExpression)definition.Body);
_costructors.Add <T>(variation, memberInitExpression.NewExpression);
_properties.Add <T>(variation, memberInitExpression.Bindings);
}
break;
case ExpressionType.New:
{
_costructors.Add <T>(variation, (NewExpression)definition.Body);
}
break;
default:
throw new ExpressionTypeNotSupportedException();
}
if (afterCreation != null)
{
_postCreationActions.Add(variation, afterCreation);
}
}