Inside Transducers
summary
Defines a transducer as a function that wraps a 3‑arity reducing function (arity 0 = init, 1 = completion, 2 = step), shows concrete implementations: map (one-to-one), filter (elide input), take (state + early termination via reduced), mapcat (expansion) and partition-by (flush on completion). Adds transducible contexts: transduce, into, lazy sequence support, and channels; introduces eduction, promise-channels, nonblocking offer/poll, and three pipeline flavors (compute, blocking, async).
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chapters (13)
- 0:00Introduction
- 2:08Understanding transducers
- 6:29Implementing a transducer
- 8:38Practical transducer examples
- 20:11Advanced implementation tips
- 25:18Transducible contexts
- 28:51Transduce and internal logic
- 32:44Reducing interfaces
- 36:01Sequences and laziness
- 40:36Eductions
- 46:13Transducers in channels
- 50:20Core.async enhancements
- 57:22Pipelining and wrap-up
