public void SetRawExpression(string rawExpr, int len)
{
ExprsStrings = new string[len];
if (Exprs != null)
{
for (var i = 0; i < Exprs.Length; ++i)
{
Exprs[i]?.Dealloc();
}
}
Exprs = new ScalarExpression[len];
_values = new Value[len];
for (var i = 0; i < ExprsStrings.Length; ++i)
{
ExprsStrings[i] = rawExpr;
}
ExprString = ExprsStrings[0];
CachedValue.SwitchTo(new Value(_values));
Recalculate();
}
public override void Recalculate(int depth = 1)
{
if (depth > MaxRecursionDepth)
{
// we are proabaly about to encounter a stack overflow
return;
}
// remove all the DependentOn values
// e.g. remove the cross-references
foreach (var e in DependentOn)
{
e.UsedBy.Remove(this);
}
DependentOn.Clear();
try
{
var val = Evaluater.Evaluate(ExprString, VarEval, IndexInArray);
CachedValue.SwitchTo(val.IsArray ? val.AsArray[IndexInArray] : val);
}
catch
{
StepManager.ErrorOccurred = true;
}
if (!IsWeak)
{
if (UsedBy.Count > 0)
{
var copyOfUsedBy = new List <Expression>(UsedBy);
UsedBy.Clear();
foreach (var e in copyOfUsedBy)
{
e.Recalculate(depth + 1);
}
}
ParentArray?.NotifyElementChanged();
}
ValueChanged?.Invoke(this, EventArgs.Empty);
}
