Three Ways To Create An Object
Enjoy!
Type type = typeof(StringBuilder); //can be any type
ConstructorInfo ci = type.GetConstructor(new Type [ 0 ]);
Stopwatch watch = new Stopwatch();
watch.Start();
for (Int32 i = 0; i < 100; ++i)
{
StringBuilder obj = Activator.CreateInstance(type) as StringBuilder;
}
Int64 time1 = watch.ElapsedTicks;
watch.Reset();
watch.Start();
for (Int32 i = 0; i < 100; ++i)
{
StringBuilder obj = ci.Invoke(null) as StringBuilder;
}
Int64 time2 = watch.ElapsedTicks;
DynamicMethod m = new DynamicMethod(String.Empty, typeof(Object), null, type, true);
ILGenerator il = m.GetILGenerator();
il.Emit(OpCodes.Newobj, ci);
il.Emit(OpCodes.Ret);
Func<Object> creator = m.CreateDelegate(typeof(Func<Object>)) as Func<Object>;
watch.Reset();
watch.Start();
for (Int32 i = 0; i < 100; ++i)
{
StringBuilder obj = creator() as StringBuilder;
}
Int64 time3 = watch.ElapsedTicks;
