public override ExpressionVariant Evaluate(ref ExpressionEvaluationContext context)
{
var cond = Condition.Evaluate(ref context);
if (cond.Type == VariantType.Boolean && cond.Boolean)
{
return(TruePart.Evaluate(ref context));
}
return(FalsePart.Evaluate(ref context));
}
protected override void Execute()
{
if (BoolExpression())
{
TruePart.ExecuteStep();
Result = TruePart.Result;
}
else
{
FalsePart.ExecuteStep();
Result = FalsePart.Result;
}
}
public override string ToString()
{
StringBuilder sb = new StringBuilder();
bool addParentheses = Condition.particles.First().Operation == Constructor.dbOpe.Qry;
string strCondition = (addParentheses ? "( " : "") + Condition.ToString() + (addParentheses ? " )" : "");
sb.AppendLine("IF " + strCondition + " BEGIN");
sb.AppendLine(TruePart.ToString());
sb.Append("END");
if (FalsePart != null)
{
sb.AppendLine();
sb.AppendLine("THEN BEGIN");
sb.AppendLine(FalsePart.ToString());
sb.Append("END");
}
return(sb.ToString());
}
public override string ToString()
{
return(Test.ToString() + " (" + TruePart.ToString() + ", " + FalsePart.ToString() + ")");
}
