using System;
using System.Diagnostics;

public class Exceptions
{
    const int Depth = 10000;
    const int N = 20;

    [Benchmark]
    public static void ExplicitRethrow()
    {
        for(int i=0; i<N; i++)
            try {
                explicit_(Depth);
            }
            catch(ApplicationException e) {
                Debug.Assert(e.Message == "foo");
            }
    }

    [Benchmark]
    public static void ImplicitRethrow()
    {
        for(int i=0; i<N; i++)
            try {
                implicit_(Depth);
            }
            catch(ApplicationException e) {
                Debug.Assert(e.Message == "bar");
            }
    }

    public static void explicit_(int x)
    {
        if (x <= 0)
            throw new ApplicationException("foo");
        else {
            ApplicationException ee = null;
            try {
                explicit_(x-1);
            }
            catch(ApplicationException e) {
                ee = e;
            }
            throw ee;
        }
    }

    public static void implicit_(int x)
    {
        if (x <= 0)
            throw new ApplicationException("bar");
        else
            implicit_(x-1);
    }

}