// *** You will need the following if you implement classes.
//protected static ClassAttributes currentClass = null;
//protected void SetCurrentClass(ClassAttributes c)
//{
// currentClass = c;
//}
//protected ClassAttributes GetCurrentClass()
//{
// return currentClass;
//}
// Call this method to begin the semantic checking process
public void CheckSemantics(AbstractNode node)
{
if (node == null)
{
return;
}
TopDeclVisitor visitor = new TopDeclVisitor();
node.Accept(visitor);
}
public void DoSemantics()
{
Console.WriteLine("\nStarting declarations processing\n");
SymbolTable symbolTable = new SymbolTable();
TopDeclVisitor topDeclVisitor = new TopDeclVisitor(symbolTable);
topDeclVisitor.CheckSemantics(CurrentSemanticValue);
Console.WriteLine("\nErrors found:");
ErrorList.Print();
}
public virtual void VisitNode(AbstractNode node)
{
AbstractNode child = node.Child;
TopDeclVisitor visitor = new TopDeclVisitor();
while (child != null)
{
child.Accept(visitor);
node.TypeRef = child.TypeRef;
child = child.Sib;
}
;
}
//Starting Node of an AST
public void VisitNode(CompilationUnit node)
{
table.incrNestLevel();
table.BuildTree();
AbstractNode child = node.Child;
TopDeclVisitor visitor = new TopDeclVisitor();
while (child != null)
{
child.Accept(visitor);
node.TypeRef = child.TypeRef;
child = child.Sib;
}
;
}
//Starting Node of an AST
public void VisitNode(CompilationUnit node)
{
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine("< In SemanticsVisitor.VisitNode for " + node.ClassName() + " >");
Console.ResetColor();
TopDeclVisitor visitor = new TopDeclVisitor();
AbstractNode child = node.Child;
while (child != null)
{
child.Accept(visitor);
child = child.Sib;
}
;
}
public void VisitNode(Block node)
{
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine("< In TopDeclVisitor.VisitNode for " + node.ClassName() + " >");
Console.ResetColor();
TopDeclVisitor visitor = new TopDeclVisitor();
table.incrNestLevel();
AbstractNode child = node.Child;
while (child != null)
{
child.Accept(visitor);
child = child.Sib;
}
;
table.decrNestLevel();
}