public object VisitThisExpr(Expr.This expr)
{
if (currentClass == ClassType.NONE)
{
Lox.Error(expr.Keyword, "Cannot use 'this' outside of a class");
return(null);
}
ResolveLocal(expr, expr.Keyword);
return(null);
}
public Void Visit(Expr.This expr)
{
if (currentClass == ClassType.None)
{
Lox.Error(expr.Keyword, "Cannot use 'this' outside of a class.");
}
else
{
ResolveLocal(expr, expr.Keyword);
}
return(Void.Instance);
}
public object VisitThisExpr(Expr.This expr)
{
return(LookUpVariable(expr.Keyword, expr));
}
object Expr.IVisitor <object> .VisitThisExpr(Expr.This expr)
{
return(LookUpVariable(expr.keyword, expr));
}
public string VisitThisExpr(Expr.This expr)
{
throw new NotImplementedException();
}
object Expr.IVisitor <object> .VisitThisExpr(Expr.This expr)
{
ResolveLocal(expr, expr.keyword);
return(null);
}