protected override object EvaluationInternal(IDictionary <object, object> parameters)
{
var left = LeftOprand.Evaluation(parameters);
var right = rightOprand.Evaluation(parameters);
if (left == null || right == null)
{
return(null);
}
if (left == ExpressionConstants.Unevaluatable || right == ExpressionConstants.Unevaluatable)
{
return(ExpressionConstants.Unevaluatable);
}
var pair = ExprEvalUtils.ConvertNum2SameLevel(left, right);
return(ExprEvalUtils.Calculate(this, pair.Key, pair.Value));
}
protected override object EvaluationInternal(IDictionary <object, object> parameters)
{
var left = LeftOprand.Evaluation(parameters);
var right = rightOprand.Evaluation(parameters);
if (left == null || right == null)
{
return(null);
}
if (left == ExpressionConstants.Unevaluatable || right == ExpressionConstants.Unevaluatable)
{
return(ExpressionConstants.Unevaluatable);
}
var b1 = ExprEvalUtils.Obj2bool(left);
var b2 = ExprEvalUtils.Obj2bool(right);
return(b1 != b2 ? LiteralBoolean.True : LiteralBoolean.False);
}
protected override object EvaluationInternal(IDictionary <object, object> parameters)
{
object left = LeftOprand.Evaluation(parameters);
object right = RightOprand.Evaluation(parameters);
if (left == null || right == null)
{
return(null);
}
if (left == UnEvaluatable || right == UnEvaluatable)
{
return(UnEvaluatable);
}
bool b1 = false, b2 = false;
if (Boolean.TryParse(left.ToString(), out b1) && Boolean.TryParse(right.ToString(), out b2))
{
return(b1 != b2 ? LiteralBoolean.TRUE : LiteralBoolean.FALSE);
}
return(LiteralBoolean.FALSE);
}
public override object Evaluation(IDictionary <object, object> parameters)
{
var left = LeftOprand.Evaluation(parameters);
var right = rightOprand.Evaluation(parameters);
if (left == null || right == null)
{
return(null);
}
if (left == ExpressionConstants.Unevaluatable || right == ExpressionConstants.Unevaluatable)
{
return(ExpressionConstants.Unevaluatable);
}
if (left is Number || right is Number)
{
var pair = ExprEvalUtils.ConvertNum2SameLevel(left, right);
left = pair.Key;
right = pair.Value;
}
return(left.Equals(right) ? LiteralBoolean.True : LiteralBoolean.False);
}