public override object Evaluate(ISoqlEvaluateContext context)
{
object val1 = par1.Evaluate(context);
object val2 = par2.Evaluate(context);
return(CalcValue(op, val1, val2));
}
public override object Evaluate(ISoqlEvaluateContext context)
{
object v1 = par1.Evaluate(context);
object v2 = par2.Evaluate(context);
return(Compare(v1, v2, op));
}
public override object Evaluate(ISoqlEvaluateContext context)
{
object val = source.Evaluate(context);
if (val == null)
{
return(null);
}
switch (type)
{
case "float":
return(Convert.ToDouble(val));
default:
throw new NotImplementedException(type);
}
}
public override object Evaluate(ISoqlEvaluateContext context)
{
object val = par.Evaluate(context);
if (val == null)
{
return(null);
}
if (val is double)
{
return(-(double)val);
}
if (val is float)
{
return(-(float)val);
}
if (val is decimal)
{
return(-(decimal)val);
}
if (val is long)
{
return(-(long)val);
}
if (val is int)
{
return(-(int)val);
}
if (val is short)
{
return(-(short)val);
}
if (val is sbyte)
{
return(-(sbyte)val);
}
throw new NotSupportedException("Unary negation is not supported on " + val.GetType().Name);
}
public override object Evaluate(ISoqlEvaluateContext context)
{
object val = haystack.Evaluate(context);
if (val == null)
{
return(null);
}
string s = (string)val;
switch (position)
{
case SoqlStringContainsPosition.Start:
return(s.StartsWith(needle));
case SoqlStringContainsPosition.End:
return(s.EndsWith(needle));
case SoqlStringContainsPosition.Any:
return(s.Contains(needle));
}
throw new NotImplementedException(position.ToString());
}
public object Evaluate(SoqlExpression expr, bool throwOnError)
{
try
{
EvaluateContext ec = new EvaluateContext(this);
return expr.Evaluate(ec);
}
catch
{
if (throwOnError)
throw;
else
return null;
}
}