public void VisitNode(AssignmentExpr node)
{
String RHS_Type;
Utilities.TypeVisitAllChildren(node);
Attributes a = new Attributes("Assignment");
AssignmentTypeDescriptor ATD = new AssignmentTypeDescriptor();
// Get Qualified Name
List <QualifiedName> matchingChildren = Utilities.GetChildren(node, typeof(QualifiedName)).Cast <QualifiedName>().ToList();
ATD.LHS_Type = Utilities.attrToType(matchingChildren[0].attrRef);
RHS_Type = ATD.LHS_Type;
a.typeInfo = ATD;
node.attrRef = a;
// Error type if problem with assignment
if (IsAssignable(ATD.LHS_Type, node, ref RHS_Type) == false)
{
Error(String.Format("Warning! Cannot assign {0} to {1}", RHS_Type, ATD.LHS_Type));
node.attrRef.typeInfo = new ErrorTypeDescriptor();
}
ATD.RHS_Type = RHS_Type;
}
public override String AttrPrint()
{
String retVal;
if (Utilities.attrToType(this.attrRef) == "ErrorTypeDescriptor")
{
retVal = String.Format("{0} (assignment impossible)", Utilities.attrToType(this.attrRef));
}
else
{
AssignmentTypeDescriptor ATD = this.attrRef.typeInfo;
retVal = String.Format("{0} \n {1} assigned to {2}", Utilities.attrToType(this.attrRef), ATD.LHS_Type, ATD.RHS_Type);
}
return(retVal);
}
