Implicit Parameters like Scalas


#1

Have you ever considered implicit parameters like Scala has? I saw a tweet today that summed up my feelings exactly: “Implicits are more explicit than annotations and reflection.

At first I really thought they were dangerous (because of hidden dependencies), but as I’ve worked with them more and more, they don’t seem to be. And I agree with the tweet, they feel better to me than the Spring way of DI.

Anyway, I was just curious if they had ever been discussed before, and what the feelings were about them.

Edit: I should mention I’m only talking about parameters here, not implicit conversions.


#2

Explicit parameters don’t seem dangerous but hard to understand.

The reader must well know all method signatures to recognize involved parameters.

The software reading is harder than writing.