public void CreateConstructor()
{
var constructor = DynamicMethodFactory.CreateConstructor(typeof(Contact));
Assert.NotNull(constructor);
var contactDelegate = constructor() as Contact;
Assert.NotNull(contactDelegate);
Assert.IsType <Contact>(contactDelegate);
}
/// <summary>
/// 返回使用反射优化后动态创建对应类型实例的结果
/// </summary>
/// <param name="instanceType">类型</param>
/// <returns>类型实例</returns>
public static object FastNew(this Type instanceType)
{
if (instanceType == null)
{
throw new ArgumentNullException("instanceType");
}
CtorDelegate ctor = (CtorDelegate)s_methodDict[instanceType];
if (ctor == null)
{
ConstructorInfo ctorInfo = instanceType.GetConstructor(Type.EmptyTypes);
ctor = DynamicMethodFactory.CreateConstructor(ctorInfo);
s_methodDict[instanceType] = ctor;
}
return(ctor());
}
/// <summary>
/// 根据指定的Type，用优化的方式快速创建实例
/// </summary>
/// <param name="instanceType"></param>
/// <returns></returns>
public static object FastNew(this Type instanceType)
{
if (instanceType == null)
{
throw new ArgumentNullException("instanceType");
}
CtorDelegate ctor = (CtorDelegate)MethodDict[instanceType];
if (ctor == null)
{
ConstructorInfo ctorInfo = instanceType.GetConstructor(Type.EmptyTypes);
if (ctorInfo == null)
{
throw new NotSupportedException(string.Format("类型\"{0}\"没有无参的构造方法。", instanceType.ToString()));
}
ctor = DynamicMethodFactory.CreateConstructor(ctorInfo);
MethodDict[instanceType] = ctor;
}
return(ctor());
}
