您如何调试类型级别的代码? [英] How do you debug typelevel code?

问题描述

大多数时候，您得到的只是一个隐式的未找到错误.您不知道它在隐式构造链中的什么地方失败了.显然，您不能使用运行时调试或打印语句.那么，除了真正盯着您的代码之外，您如何调试类型级别的程序?

Most of the time, all you get is an implicit not found error. You don't know where in the chain of implicit construction it failed. Apparently you can't use runtime debug or print statement. So how do you debug type-level program other than staring at your code really hard?

推荐答案

我希望我能得到一个更好的答案，但是要解决这个问题:开始显式传递参数，一次传递一次，直到给您一个更有用的错误为止. (添加-prinlns-等效于隐式参数)

I wish I had a better answer, but here it goes: Start passing the parameters explicitly, one at a time until it gives you a more useful error. (adding-prinlns-equivalent for implicits params)

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