private SymbolTable handleRoutineBody(AstNode node, SymbolTable table)
{
List <AstNode> childes = node.getChilds();
foreach (var j in childes)
{
if (j.GetNodeType().Equals(AstNode.NodeType.Constant))
{
List <AstNode> consts = j.getChilds();
foreach (var constant in consts)
{
AstNode id = constant.getChilds()[0];
SymbolTableEntry entry = new SymbolTableEntry(id);
entry.type = "int";
entry.isConst = true;
entry.isInitialized = true;
table.Add(((Token)id.getValue()).GetValue(), entry);
return(table);
}
}
else if (j.GetNodeType().Equals(AstNode.NodeType.Variable))
{
var childs = j.getChilds();
var type = ((Token)childs[0].getValue()).GetValue();
for (var i = 1; i < childs.Count; i++)
{
var id = childs[i].getChilds()[0];
var entry = new SymbolTableEntry(id);
entry.type = type;
if (childs.Count > 1 && childs[1].GetNodeType().Equals(AstNode.NodeType.Expression))
{
entry.isInitialized = true;
}
table.Add(((Token)id.getValue()).GetValue(), entry);
}
return(table);
}
else
{
SymbolTable newTable = handleRoutineBody(j, table);
foreach (var t in newTable.Values)
{
table.Add(t.name, t);
}
return(table);
}
}
return(new SymbolTable());
}
private string handleParameters(AstNode parameter, RoutineTableEntry entry)
{
string type = ((Token)parameter.getValue()).GetValue();
string name = ((Token)parameter.getChilds()[0].getValue()).GetValue();
checkSymbol(name);
SymbolTableEntry symbolTableEntry = new SymbolTableEntry(parameter.getChilds()[0]);
symbolTableEntry.type = type;
symbols.Add(name, symbolTableEntry);
return(type);
}
private void handleSymbol(AstNode node)
{
var entry = new SymbolTableEntry(node, maxVarId++);
symbols.Add(entry.name, entry);
}
