public static Expression IsAllowedExpression(Expression entity, TypeAllowedBasic requested, bool inUserInterface)
{
Type type = entity.Type;
TypeAllowedAndConditions tac = GetAllowed(type);
Expression baseValue = Expression.Constant(tac.FallbackOrNone.Get(inUserInterface) >= requested);
var expression = tac.Conditions.Aggregate(baseValue, (acum, tacRule) =>
{
var lambda = TypeConditionLogic.GetCondition(type, tacRule.TypeCondition);
var exp = (Expression)Expression.Invoke(lambda, entity);
if (tacRule.Allowed.Get(inUserInterface) >= requested)
{
return(Expression.Or(exp, acum));
}
else
{
return(Expression.And(Expression.Not(exp), acum));
}
});
var cleaned = DbQueryProvider.Clean(expression, false, null) !;
var orsSimplified = AndOrSimplifierVisitor.SimplifyOrs(cleaned);
return(orsSimplified);
}
internal static Expression IsAllowedExpressionDebug(Expression entity, TypeAllowedBasic requested, bool inUserInterface)
{
Type type = entity.Type;
TypeAllowedAndConditions tac = GetAllowed(type);
Expression baseValue = Expression.Constant(tac.FallbackOrNone.Get(inUserInterface) >= requested);
var list = (from line in tac.Conditions
select Expression.New(ciGroupDebugData, Expression.Constant(line.TypeCondition, typeof(TypeConditionSymbol)),
Expression.Invoke(TypeConditionLogic.GetCondition(type, line.TypeCondition), entity),
Expression.Constant(line.Allowed))).ToArray();
Expression newList = Expression.ListInit(Expression.New(typeof(List <ConditionDebugData>)), list);
Expression liteEntity = Expression.Call(null, miToLite.MakeGenericMethod(entity.Type), entity);
return(Expression.New(ciDebugData, liteEntity,
Expression.Constant(requested),
Expression.Constant(inUserInterface),
Expression.Constant(tac.Fallback),
newList));
}