// 重写响应成员调用方法
public override DynamicMetaObject BindInvokeMember(InvokeMemberBinder binder, DynamicMetaObject[] args)
{
// 获得真正的对象
DynamicMetaObjectProviderImpl target = (DynamicMetaObjectProviderImpl)base.Value;
Expression self = Expression.Convert(base.Expression, typeof(DynamicMetaObjectProviderImpl));
var restrictions = BindingRestrictions.GetInstanceRestriction(self, target);
// 输出绑定方法名
Console.WriteLine(binder.Name + " 方法被调用了");
return(new DynamicMetaObject(self, restrictions));
}
/// <summary>
/// 使用IDynamicMetaObjectProvider来实现动态行为
/// </summary>
public static void demoIDynamicMetaObjectProvider()
{
dynamic dynamicobj2 = new DynamicMetaObjectProviderImpl();
dynamicobj2.CallMethod();
}
internal Metadynamic(Expression expression, DynamicMetaObjectProviderImpl value)
: base(expression, BindingRestrictions.Empty, value)
{
}