On Mon Nov 10 2014 at 9:55:28 PM Roman Cheplyaka <roma@ro-che.info> wrote:

On 10/11/14 13:32, Michael Snoyman wrote:
> One other question/comment: I'm not convinced that the `String` instance is
> a good thing. It will conflict with any other list instance, unless you
> turn on OverlappingInstances (which I hope you don't).

I do. Why don't you?

Just the general aversion to OverlappingInstances. The few times in the past I've attempted to use OverlappingInstances to solve a problem, it turned out poorly, which has left a bad taste in my mouth.

In this case, I wouldn't want some orphan instance of `instance Display [Int]`, for example, changing behavior of my program. That's not a very strong reason to be sure; my primary concern is the unforeseen complications it will result in.

Michael