public object visit_super(SuperExpr super_expr)
{
// Get the superclass and the 'this' object
PlutoClass superclass = (PlutoClass)local_scope.get(new Token(Token.Type.Super, "super"));
PlutoObject obj = (PlutoObject)local_scope.get(new Token(Token.Type.This, "this"));
// Get the method from the superclass
PlutoFunction method = superclass.find_method(obj, (string)super_expr.identifier.value);
if (method == null)
{
throw new RuntimeException("Undefined method of superclass '" + super_expr.identifier.value + "'");
}
return(method);
}
public object visit_super(SuperExpr super_expr)
{
// Get the superclass and the 'this' object
WavyClass superclass = (WavyClass)local_scope.get("super");
WavyObject obj = (WavyObject)local_scope.get("this");
// Get the method from the superclass
WavyFunction method = superclass.find_method(obj, (string)super_expr.identifier.value);
if (method == null)
{
throw new RuntimeException("Undefined method of superclass '" + super_expr.identifier.value + "'");
}
return(method);
}
public object visit_super(SuperExpr super_expr)
{
if (class_type == ClassType.None)
{
throw new RuntimeException("Cannot use super outside of a class");
}
else if (class_type != ClassType.SubClass)
{
throw new RuntimeException("Cannot use super in a class that doesn't extend another");
}
// Resolve the super identifier
// This may need to be changed to identifier
resolve_local_position(super_expr, "super");
return(null);
}
protected override object MatchSuperExpr(SuperExpr expr)
{
if (_currentClass == ClassType.NONE)
{
Lox.Error(expr.Keyword, "Cannot use 'super' outside of a class.");
}
else if (_currentClass != ClassType.SUBCLASS)
{
Lox.Error(expr.Keyword, "Cannot use 'super' in a class with no supeclass.");
}
ResolveLocal(expr, expr.Keyword);
return(null);
}
protected abstract object MatchSuperExpr(SuperExpr superExpr);
public virtual void Visit(SuperExpr expr)
{
}
public override void Visit(SuperExpr expr)
{
}
public override void Visit(SuperExpr expr)
{
AddStr("super." + expr.method.lexeme);
}
