public override ExprNode Validate(ExprValidationContext validationContext)
{
if (ChildNodes.Length != 2) {
throw new ExprValidationException("BitWise node must have 2 parameters");
}
var typeOne = ChildNodes[0].Forge.EvaluationType.GetBoxedType();
var typeTwo = ChildNodes[1].Forge.EvaluationType.GetBoxedType();
CheckNumericOrBoolean(typeOne);
CheckNumericOrBoolean(typeTwo);
if (typeOne.IsFloatingPointClass() || typeTwo.IsFloatingPointClass()) {
throw new ExprValidationException(
"Invalid type for bitwise " + BitWiseOpEnum.ComputeDescription + " operator");
}
if (typeOne != typeTwo) {
throw new ExprValidationException(
"Bitwise expressions must be of the same type for bitwise " +
BitWiseOpEnum.ComputeDescription +
" operator");
}
var computer = BitWiseOpEnum.GetComputer(typeOne);
_forge = new ExprBitWiseNodeForge(this, typeOne, computer);
return null;
}
public override ExprNode Validate(ExprValidationContext validationContext)
{
if (ChildNodes.Count != 2)
{
throw new ExprValidationException("BitWise node must have 2 parameters");
}
_evaluators = ExprNodeUtility.GetEvaluators(ChildNodes);
foreach (var child in _evaluators)
{
var childType = child.ReturnType;
if ((!childType.IsBoolean()) && (!childType.IsNumeric()))
{
throw new ExprValidationException("Invalid datatype for bitwise " +
childType.Name + " is not allowed");
}
}
// Determine result type, set up compute function
var childTypeOne = _evaluators[0].ReturnType;
var childTypeTwo = _evaluators[1].ReturnType;
if ((childTypeOne.IsFloatingPointClass()) || (childTypeTwo.IsFloatingPointClass()))
{
throw new ExprValidationException("Invalid type for bitwise " + _bitWiseOpEnum.GetComputeDescription() + " operator");
}
else
{
var childBoxedTypeOne = childTypeOne.GetBoxedType();
var childBoxedTypeTwo = childTypeTwo.GetBoxedType();
if (childBoxedTypeOne == childBoxedTypeTwo)
{
_returnType = childBoxedTypeOne;
_bitWiseOpEnumComputer = _bitWiseOpEnum.GetComputer(_returnType);
}
else
{
throw new ExprValidationException("Bitwise expressions must be of the same type for bitwise " + _bitWiseOpEnum.GetComputeDescription() + " operator");
}
}
return(null);
}