public void Visit(PutsExpression puts)
{
if (puts.Value is ILiteralExpression)
{
var value = ((ILiteralExpression)puts.Value).GetValue();
Console.Write(value);
}
else if (puts.Value is IdentifierExpression)
{
string varName = ((IdentifierExpression)puts.Value).Value;
var variable = _variables.FirstOrDefault(var => var.Name == varName);
if (variable != null)
{
if (variable.Value == null)
{
Console.Write("null");
}
else
{
Console.Write(variable.Value);
}
}
}
else if (puts.Value is FunctionCallExpression)
{
Visit(puts.Value);
var value = _returnValues.Pop();
Console.Write(value.Value);
}
else if (puts.Value is MathsExpression)
{
Visit(puts.Value);
var value = _mathsResults.Pop().Value;
Console.Write(value);
}
else
{
Console.Write(puts.Value.Print());
}
}
protected virtual Expression VisitPuts(PutsExpression node)
{
Visit(node.Value);
return(node);
}
