/// <summary>
/// 快速调用PropertyInfo的GetValue方法
/// </summary>
/// <param name="propertyInfo"></param>
/// <param name="obj"></param>
/// <returns></returns>
public static object FastGetValue(this PropertyInfo propertyInfo, object obj)
{
if (propertyInfo == null)
{
throw new ArgumentNullException("propertyInfo");
}
return(GetterSetterFactory.GetPropertyGetterWrapper(propertyInfo).Get(obj));
}
/// <summary>
/// 快速调用PropertyInfo的SetValue方法
/// </summary>
/// <param name="propertyInfo"></param>
/// <param name="obj"></param>
/// <param name="value"></param>
public static void FastSetValue(this PropertyInfo propertyInfo, object obj, object value)
{
if (propertyInfo == null)
{
throw new ArgumentNullException("propertyInfo");
}
GetterSetterFactory.GetPropertySetterWrapper(propertyInfo).Set(obj, value);
}
public static void Test()
{
Console.WriteLine(System.Runtime.InteropServices.RuntimeEnvironment.GetSystemVersion());
int count = 1000000;
OrderInfo testObj = new OrderInfo();
PropertyInfo propInfo = typeof(OrderInfo).GetProperty("OrderID");
Console.Write("直接访问花费时间： ");
Stopwatch watch1 = Stopwatch.StartNew();
for (int i = 0; i < count; i++)
{
testObj.OrderID = 123;
}
watch1.Stop();
Console.WriteLine(watch1.Elapsed.ToString());
SetValueDelegate setter2 = DynamicMethodFactory.CreatePropertySetter(propInfo);
Console.Write("EmitSet花费时间： ");
Stopwatch watch2 = Stopwatch.StartNew();
for (int i = 0; i < count; i++)
{
setter2(testObj, 123);
}
watch2.Stop();
Console.WriteLine(watch2.Elapsed.ToString());
Console.Write("纯反射花费时间： ");
Stopwatch watch3 = Stopwatch.StartNew();
for (int i = 0; i < count; i++)
{
propInfo.SetValue(testObj, 123, null);
}
watch3.Stop();
Console.WriteLine(watch3.Elapsed.ToString());
Console.WriteLine("----------------------------------");
Console.WriteLine("{0} / {1} = {2}",
watch3.Elapsed.ToString(),
watch1.Elapsed.ToString(),
watch3.Elapsed.TotalMilliseconds / watch1.Elapsed.TotalMilliseconds);
Console.WriteLine("{0} / {1} = {2}",
watch3.Elapsed.ToString(),
watch2.Elapsed.ToString(),
watch3.Elapsed.TotalMilliseconds / watch2.Elapsed.TotalMilliseconds);
Console.WriteLine("{0} / {1} = {2}",
watch2.Elapsed.ToString(),
watch1.Elapsed.ToString(),
watch2.Elapsed.TotalMilliseconds / watch1.Elapsed.TotalMilliseconds);
Console.Write("泛型委托花费时间： ");
SetterWrapper <OrderInfo, int> setter3 = new SetterWrapper <OrderInfo, int>(propInfo);
Stopwatch watch4 = Stopwatch.StartNew();
for (int i = 0; i < count; i++)
{
setter3.SetValue(testObj, 123);
}
watch4.Stop();
Console.WriteLine(watch4.Elapsed.ToString());
Console.Write("通用接口花费时间： ");
ISetValue setter4 = GetterSetterFactory.CreatePropertySetterWrapper(propInfo);
Stopwatch watch5 = Stopwatch.StartNew();
watch5.Start();
for (int i = 0; i < count; i++)
{
setter4.Set(testObj, 123);
}
watch5.Stop();
Console.WriteLine(watch5.Elapsed.ToString());
}