public override void InAFunctionFunctionDeclaration(AFunctionFunctionDeclaration node)
{
// Save current symbol table.
_previousSymbolTables.AddFirst(_currentSymbolTable);
// Build definitions for allowed types according to grammar. CS426 only allows int and string and float
BasicTypeDefinition intType;
intType = new BasicTypeDefinition();
intType.name = "int";
StringTypeDefinition stringType = new StringTypeDefinition();
stringType.name = "string";
BasicTypeDefinition floatType;
floatType = new BasicTypeDefinition();
floatType.name = "float";
// Create and seed the symbol table.
if (!_functionSymbolTable.ContainsKey("int"))
{
_functionSymbolTable.Add("int", intType);
_functionSymbolTable.Add("string", stringType);
_functionSymbolTable.Add("float", floatType);
}
}
public override void OutAFunctionFunctionDeclaration(AFunctionFunctionDeclaration node)
{
Definition def;
String methodName = node.GetId().Text;
// Ensure submethod name isn't used
if (_functionSymbolTable.TryGetValue(methodName, out def))
{
Console.WriteLine("[" + node.GetOpenpar().Line + "] : " + methodName + " is already declared.");
// Build function definition and add to symbol table
}
else
{
def = new MethodDefinition();
def.name = node.GetId().Text;
_functionSymbolTable.Add(methodName, def);
}
}
