public void Visit(FuncDefinition funcDef)
{
Environment.NewScope();
// Return statements can now be applied
inFunction = true;
// Add arguments to new scope (reverse order because of stack)
for (int currParam = funcDef.Parameters.Count - 1; currParam >= 0; currParam--)
{
dynamic arg = Environment.PopFromTheStack();
if (arg is double && funcDef.Parameters[currParam].Type == "NumToken")
{
Environment.AddItem(new NumItem(funcDef.Parameters[currParam].Name, arg));
}
else if (arg is string && funcDef.Parameters[currParam].Type == "StrToken")
{
Environment.AddItem(new StrItem(funcDef.Parameters[currParam].Name, arg));
}
else if (arg is TurtleItem && funcDef.Parameters[currParam].Type == "TurtleToken")
{
Environment.AddReferenceToTurtle(funcDef.Parameters[currParam].Name, Environment.GetItem(arg.Name));
}
}
// Run body of function
funcDef.Body.Accept(this);
// Exit function mode
inFunction = false;
Environment.DeleteScope();
}
public void Visit(FuncDefinition funcDef)
{
Console.Write("func ");
Console.Write(funcDef.Name);
Console.Write("(");
int argsCntr = funcDef.Parameters.Count;
foreach (VarDeclaration arg in funcDef.Parameters)
{
arg.Accept(this);
if (argsCntr != 1)
{
Console.Write(",");
argsCntr--;
}
}
Console.Write(")");
funcDef.Body.Accept(this);
}