Line data    Source code

       1           0 : namespace CalculatorApp {
       2             : 
       3             : /// <summary>
       4             : /// Console entry point. All parsing and calculation logic lives in
       5             : /// <see cref="CalculatorLibrary.CalculatorCli"/> so it is unit tested there; this class only wires
       6             : /// the process arguments to that logic and prints the result. It never calls
       7             : /// <c>Console.ReadLine</c> or otherwise waits on keyboard input, so it never blocks when launched
       8             : /// from a build script or CI.
       9             : /// </summary>
      10             : internal class Program {
      11           0 :   private static int Main(string[] args) {
      12             :     try {
      13             :       string output = args.Length == 0 ? CalculatorLibrary.CalculatorCli.RunDemo() : CalculatorLibrary.CalculatorCli.Run(args);
      14             :       Console.WriteLine(output);
      15             :       return 0;
      16             :     } catch (Exception ex) when (ex is ArgumentException or DivideByZeroException) {
      17             :       Console.Error.WriteLine($"Error: {ex.Message}");
      18             :       return 1;
      19             :     }
      20             :   }
      21             : }
      22             : }