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February 5, 2018 11:28
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like clojure.core sequence but without chunking
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| (defn unchunked-sequence [xform coll] | |
| (->> coll | |
| (clojure.lang.RT/iter) | |
| (clojure.lang.TransformerIterator/create xform) | |
| (clojure.lang.IteratorSeq/create))) | |
| ;; realizes 10 values | |
| (first | |
| (unchunked-sequence (comp (map #(do (prn %) %)) | |
| (partition-all 10)) | |
| (range 100))) | |
| ;; realizes all values | |
| (first | |
| (sequence (comp (map #(do (prn %) %)) | |
| (partition-all 10)) | |
| (range 100))) |
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since apparently sequence chunks by output it can end up causing the realisation of a lot of data from its inputs