static CountedStopwatch TimeFor_ClassConstraint_NullCheck_HoistedCount <T>(T list)
where T : class, IList <string>
{
// just need something for the compiler to guarantee that list is not null.
if (list == null)
{
throw new ArgumentNullException();
}
var timer = new CountedStopwatch(TestName("Generic caller - for (class constraint, null check, hoisted count)", list.GetType(), typeof(T)));
for (int i = 0; i < TimedIntervals; i++)
{
timer.Start();
int count = list.Count;
for (int j = 0; j < count; j++)
{
var item = list[j];
DontElide(item);
}
timer.Stop();
}
return(timer);
}
static CountedStopwatch Time_Foreach_List(List <string> list)
{
var timer = new CountedStopwatch(TestName("foreach", list.GetType()));
for (int i = 0; i < TimedIntervals; i++)
{
timer.Start();
foreach (var item in list)
{
DontElide(item);
}
timer.Stop();
}
return(timer);
}
static CountedStopwatch TimeForeach_Dynamic(dynamic list)
{
var timer = new CountedStopwatch(TestName("foreach (dynamic)", list.GetType()));
for (int i = 0; i < TimedIntervals; i++)
{
timer.Start();
foreach (var item in list)
{
DontElide(item);
}
timer.Stop();
}
return(timer);
}
static CountedStopwatch Time_Foreach_YieldEnumerator(ReadOnlyCollectionYieldEnumerator <string> list)
{
var timer = new CountedStopwatch(TestName("foreach", list.GetType()));
for (int i = 0; i < TimedIntervals; i++)
{
timer.Start();
foreach (var item in list)
{
DontElide(item);
}
timer.Stop();
}
return(timer);
}
static CountedStopwatch Time_For_List(List <string> list)
{
var timer = new CountedStopwatch(TestName("for", list.GetType()));
for (int i = 0; i < TimedIntervals; i++)
{
timer.Start();
for (int j = 0; j < list.Count; j++)
{
var item = list[j];
DontElide(item);
}
timer.Stop();
}
return(timer);
}
static CountedStopwatch TimeForeach_ClassConstraint <T>(T list)
where T : class, IList <string>
{
var timer = new CountedStopwatch(TestName("Generic caller - foreach (class constraint)", list.GetType(), typeof(T)));
for (int i = 0; i < TimedIntervals; i++)
{
timer.Start();
foreach (var item in list)
{
DontElide(item);
}
timer.Stop();
}
return(timer);
}
static CountedStopwatch TimeFor <T>(T list)
where T : IList <string>
{
var timer = new CountedStopwatch(TestName("Generic caller - for", list.GetType(), typeof(T)));
for (int i = 0; i < TimedIntervals; i++)
{
timer.Start();
for (int j = 0; j < list.Count; j++)
{
var item = list[j];
DontElide(item);
}
timer.Stop();
}
return(timer);
}
static CountedStopwatch Time_For_IList_HoistedCount(IList <string> list)
{
var timer = new CountedStopwatch(TestName("for (Hoisted Count)", list.GetType(), typeof(IList <string>)));
for (int i = 0; i < TimedIntervals; i++)
{
timer.Start();
int count = list.Count;
for (int j = 0; j < count; j++)
{
var item = list[j];
DontElide(item);
}
timer.Stop();
}
return(timer);
}
static CountedStopwatch TimeFor_Dynamic(dynamic list)
{
var timer = new CountedStopwatch(TestName("for (dynamic)", list.GetType()));
for (int i = 0; i < TimedIntervals; i++)
{
timer.Start();
int count = list is Array ? list.Length : list.Count;
for (int j = 0; j < count; j++)
{
var item = list[j];
DontElide(item);
}
timer.Stop();
}
return(timer);
}
