模拟C＃可变参数模板 [英] Simulate variadic templates in c#

问题描述

有用于模拟在C＃中的可变参数模板功能，一个众所周知的方法是什么？

Is there a well known way for simulating the variadic template feature in c#?

例如，我想编写需要一个拉姆达与方法任意设定的参数。这里是伪代码想什么，我有：

For instance, I'd like to write a method that takes a lambda with an arbitrary set of parameters. Here is in pseudo code what I'd like to have:

void MyMethod<T1,T2,...,TReturn>(Fun<T1,T2, ..., TReturn> f)
{

}

感谢您

推荐答案

C＃泛型是不一样的C ++模板。 C ++模板被扩展编译时，可以使用可变参数模板参数递归使用。在C ++模板扩张实际上是图灵完备，所以没有从理论上限制什么可以在模板中完成。

C# generics are not the same as C++ templates. C++ templates are expanded compiletime and can be used recursively with variadic template arguments. The C++ template expansion is actually Turing Complete, so there is no theoretically limit to what can be done in templates.

C＃泛型是直接编译，用一个空的占位对于将在运行时使用的类型。

C# generics are compiled directly, with an empty "placeholder" for the type that will be used at runtime.

要接受一个lambda采取任何数量的参数，你要么必须产生大量的过载（通过代码生成器）或接受 LambdaExpression 。

To accept a lambda taking any number of arguments you would either have to generate a lot of overloads (through a code generator) or accept a LambdaExpression.

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