public Void Visit_ThisExpr(ThisExpr expr)
{
if (_currentClass == ClassType.None)
{
_errors.Add(new Error(expr.keyword, ErrorType.InvalidThisUsage));
return(null);
}
ResolveLocal(expr, expr.keyword);
return(null);
}
public object VisitThisExpr(ThisExpr expr)
{
if (_currentClassType == ClassType.NONE)
{
Lox.Error(expr.Keyword, "Cannot use 'this' outside of a class.");
return(null);
}
ResolveLocal(expr, expr.Keyword);
return(null);
}
public object VisitThisExpr(ThisExpr expr)
{
return(LookUpVariable(expr.Keyword, expr));
}
public Object Visit_ThisExpr(ThisExpr expr)
{
return(LookUpVariable(expr.keyword, expr));
}
public string Visit_ThisExpr(ThisExpr expr)
{
return("(Expr this)");
}
