public void Visit(PrintExpression print)
{
if (print.Value is ILiteralExpression)
{
var value = ((ILiteralExpression)print.Value).GetValue();
Console.WriteLine(value);
}
else if (print.Value is IdentifierExpression)
{
string varName = ((IdentifierExpression)print.Value).Value;
var variable = _variables.FirstOrDefault(var => var.Name == varName);
if (variable != null)
{
if (variable.Value == null)
{
Console.WriteLine("null");
}
else
{
Console.WriteLine(variable.Value);
}
}
}
else if (print.Value is FunctionCallExpression)
{
Visit(print.Value);
var value = _returnValues.Pop();
Console.WriteLine(value.Value);
}
else
{
Console.WriteLine(print.Value.Print());
}
}
public override void Eval(TemplateContext context, System.IO.StringWriter writer)
{
writer.Write(PrintExpression.Eval(context));
}
