Don't retain heads in side-effectful iterations

[jstepien]

Replace forms iterating over collections for the purpose of side-effects with alternatives which don't retain heads of collections.

[tolitius]

@jstepien: great, thank you! I missed run! as one of the Clojure 1.7 additions.

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one concern that I have: mount currently works with pre Clojure 1.7 projects as well, incorporating run! will mean that all those projects won't be able to use new versions of mount.

what do you think?

[jstepien]

Seeing 1.7.0 in project.clj I assumed that mount isn't targeting earlier versions. But in such case we can quickly replace run! with either invoking dorun on lazy seqs, or doseq. Does it sounds good?

[tolitius]

yep, dorun and/or doseq sound good. I like run! too, but just wanted to be mindful to people who, for whatever reason, did not update their projects to Clojure 1.7

[jstepien]

@tolitius Done in 3179ed2

[tolitius]

great, thanks!

[jstepien]

My pleasure!