本文介绍了我可以将参数作为数组传递吗?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
例如,代替
assert_eq!(add(2,3), 5);有什么方法可以调用类似的东西
is there some way to call something like
let params: [u32; 2] = [2 ,3]; assert_eq!(call!(&add, params), 5);我会发现此功能对于测试非常有用.例如,如果我想为需要大量参数的函数编写多个测试,则希望能够重用这样的虚拟参数对象:
I would find this functionality very useful for testing. E.g., if I want to write multiple tests for a function that takes a large number of params, I want to be able to reuse a dummy param object like this:
#[cfg(test)] mod tests { const dummy: [u32; 5] = [0, 0, 0, 0, 0]; #[test] fn test_first_param() { let mut params = dummy; params[0] = 1; assert_eq!(call!(&add, params)), 1); } #[test] fn test_second_param() { let mut params = dummy; params[1] = 1; assert_eq!(call!(&add, params)), 1); } }
如果不存在此功能,那么有人会对我制作和发布宏感兴趣吗?
If this functionality does not exist, would anyone be interested in me making and publishing a macro?
推荐答案该语言中没有任何功能可以枚举数组并将每个元素作为参数传递.您确实需要一个宏.
There's no feature in the language that enumerates over an array and passes each element as an argument. You're correct that you'd need a macro.
更多推荐
我可以将参数作为数组传递吗?
发布评论