chainlet Changelog

v1.3.0

New Features

  • The >> and << operators use experimental reflection precedence based on domains.
  • Added a future based concurrency module.
  • Added a threading based chain domain offering concurrent bundles.
  • Added a multiprocessing based Driver.

Major Changes

  • Due to inconsistent semantics, stopping a chain with StopTraversal no longer allows for a return value. Aligned chainlet.send to generator.send, returning None or an empty iterable instead of blocking indefinitely. See issue #8 for details.
  • Added chainlet.dispatch(iterable) to send an entire stream slice at once. This allows for internal lazy and concurrent evaluation.
  • Deprecated the use of external linkers in favour of operator+constructor.
  • Linking to chains ignores elements which are False in a boolean sense, e.g. an empty CompoundLink.

Minor Changes

  • CompoundLink objects are now considered boolean False based on elements.
  • Added a neutral element for internal use.

Bug Fixes

  • A Bundle will now properly join the stream if any of its elements does so.
  • Correctly unwrapping return value for any Chain which does not fork.
  • FunctionLink and funclet support positional arguments

v1.2.0

New Features

  • Decorator/Wrapper versions of FunctionLink and GeneratorLink are proper subclasses of their class. This allows setting attributes and inspection. Previously, they were factory functions.
  • Instances of FunctionLink can be copied and pickled.
  • Instances of GeneratorLink can be copied and pickled.
  • Subchains can be extracted from a Chain via slicing.

Major Changes

  • Renamed compound chains and simplified inheritance to better reflect their structure:

    • Chain has been renamed to CompoundLink
    • ConcurrentChain has been removed
    • MetaChain has been renamed to Chain
    • LinearChain has been renamed to FlatChain
    • ParallelChain has been renamed to Bundle

  • A Chain that never forks or definitely joins yields raw data chunks, instead of nesting each in a list

  • A Chain whose first element does a fork inherits this.

Minor Changes

  • The top-level namespace chainlet has been cleared from some specialised aliases.

Fixes

  • Chains containing any chainlet_fork elements but no Bundle are properly built

v1.1.0 2017-06-08

New Features

  • Protolinks: chainlet versions of builtins and protocols

Minor Changes

  • Removed outdated sections from documentation

v1.0.0 2017-06-03

Notes

  • Initial release

New Features

  • Finalized definition of chainlet element interface on chainlet.ChainLink
  • Wrappers for generators, coroutines and functions as chainlet.genlet and chainlet.funclet
  • Finalized dataflow definition for chains, fork and join
  • Drivers for sequential and threaded driving of chains