slamdata/slamengine — pull request #269 by sellout (2014-09-02 21:39:07+00:00)
Title: Minor fixes

* refactoring of JsExprPhase that should handle bad arity, etc.
* eliminate DummyOp (which was just a placeholder for “unrooted” pipelines until I had all the merging stuff figured out)
* maintain PureOps, rather than immediately converting them to (Dummy-rooted) projects.