由网友(丶秋雨涩)分享简介：我想指定的合同这个通用接口，使用code合同：I'd like to specify a contract for this generic interface, using Code Contracts:interface IRandomWriteAccessible{T this[uint index]...

我想指定的合同这个通用接口，使用code合同：

I'd like to specify a contract for this generic interface, using Code Contracts:

interface IRandomWriteAccessible<T>
{
    T this[uint index] { set; }
    uint Length { get; }
}

该文件说，指定合约的接口时，使用 ContractClass 属性。但是，编译器会抱怨这样的：

The documentation says to use the ContractClass attribute when specifying a contract for an interface. However, the compiler will complain about this:

[ContractClass(typeof(IRandomWriteAccessibleContract<T>))]
//             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^     <-- compiler error
interface IRandomWriteAccessible<T> { … }

[ContractClassFor(typeof(IRandomWriteAccessible<T>))]
//                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^          <-- compiler error
sealed class IRandomWriteAccessibleContract<T> : IRandomWriteAccessible<T> { … }

似乎类型参数不能用于具有属性

It seems that type parameters cannot be used with attributes.

如何的不的我写了一个合同，我的通用接口？或者，这是不可能的code合同？

How do I write a contract for my generic interface? Or is this not possible with Code Contracts?

推荐答案

正如在这个问题的其他意见，你应该从你的属性使用删除泛型类型标识符，因为它不能在编译时解析：

As mentioned by other comments in this question, you should remove the generic type identifier from your attribute usage as it can not be resolved at compile time:

[ContractClass(typeof(IRandomWriteAccessibleContract<>))]