别名库隐含在包对象中

Question

Say I have:

import org.scalatest.ShouldMatchers._;

This brings a few implicit conversions into scope.

How can I alias them in a package object so that I can bring the implicits into scope with:

import code.ThePackageObject._;

Answer 1

Apparently the ShouldMatchers object extends the ShouldMatchers trait (where the actual definition of the implicits are done). This is a common idiom that allows to simply mix the trait where you need it. So you can simply mix ShouldMatchers (the trait) in your package object:

package object ThePackageObject extends ShouldMatchers