public InputVar GetVar(string name, bool originator = true)
{
if (originator)
{
name = name.ToLower();
}
if (!Vars.TryGetValue(name, out InputVar var))
{
if (ParentScope != null)
{
InputVar pvar = ParentScope.GetVar(name, false);
if (pvar != null)
{
return(pvar);
}
}
if (originator) // not found, return an undefined var (the reason we do this is so that
{
return(DefineAndReturnVar(name, null)); // new var will work properly, otherwise it finds no name)
}
// ^ I will probably regret this design decision when people have errors from undefined
// variables and can't figure out what's going on
return(null);
}
return(var);
}
private static InputVar GetVarAtRuntime(InputContext context, object o, string errtype)
{
InputVar var = null;
if (o is InputVar)
{
var = o as InputVar;
}
else if (o is AccessorResult)
{
AccessorResult a = o as AccessorResult;
if (!a.IsVar)
{
throw new Exception(errtype + " not supported for non-var types.");
}
var = a.Var;
}
else if (o is string)
{
var = context.GetVar(o as string);
if (var == null)
{
throw new Exception("Var " + o.ToString() + " not found at runtime.");
}
}
if (var == null)
{
throw new Exception("Could not parse '" + o.ToString() + "' as var for " + errtype + ".");
}
return(var);
}
public static InputVar LookupVar(string varname, InputContext context)
{
InputVar var = context.GetVar(varname);
//if (var == null)
// context.DefineVar(varname, "UNDEFINED");
return(var);
}
