Here is the latest OCaml Weekly News, for the week of September 02 to 09, 2014.
Archive: https://sympa.inria.fr/sympa/arc/caml-list/2014-09/msg00021.htmlPaul Pelzl announced:
I'm pleased to announce the release of capnp-ocaml 2.0.1. It is available in OPAM as package "capnp", or from the project website: https://github.com/pelzlpj/capnp-ocaml capnp-ocaml is a code generator plugin for the Cap'n Proto serialization framework. Cap'n Proto's distinguishing feature is that there is no explicit parsing/serialization step: the on-the-wire message format is also designed to serve as an efficient in-memory data structure representation. http://kentonv.github.io/capnproto/ Aside from important bugfixes, this release brings a larger and better-designed I/O support library for moving messages across various types of channels. Performance has also been significantly improved; I've written a blog post about the benchmarking and optimization experience. http://pelzlpj.github.io/capnp-ocaml/2014/09/02/capnp-ocaml-2.0/ An excerpt from the change log follows. Enjoy, Paul === Backwards-incompatible changes * Module `Codecs`: change API to accept the more natural `BytesMessage.Message.t` instead of `Bytes.t list`. * Module `Codecs`: change API to accept a `compression` specifier, instead of using separate functions and separate types for compressed and uncompressed streams. * Module `Message`: `to_storage` now returns a list of (storage, length) pairs. === Other changes * Module `Codecs`: fix incorrect encoding of framing headers (for example, as generated by `serialize`). * Module `Codecs`: fix infinite loop in `PackedStream` decoding. * Module `Codecs`: reduce serialized message sizes, by omitting unused allocation regions from the serialized messages. * Instantiate `BytesMessage = Message.Make(BytesStorage)`, so the user doesn't always need to. (Implementation is furthermore defunctorized for improved performance.) * New module `IO`: functions for moving message data through various types of I/O channels. * Compiler now says something about files it created. * Corrected compilation errors when using 4.02 `-safe-string`. * Significant performance improvements across the board.
Archive: https://sympa.inria.fr/sympa/arc/caml-list/2014-09/msg00029.htmlJacques Garrigue replied to this request from Goswin von Brederlow:
> Note: an example using oasis would be the best. :) I just gave a presentation at the ML workshop about that. There is no oasis code, but the slides explain well how to call the compiler, and the impact on dependencies. http://www.math.nagoya-u.ac.jp/~garrigue/papers/index.html
Archive: https://sympa.inria.fr/sympa/arc/caml-list/2014-09/msg00047.htmlPeter Zotov announced:
I'm glad to announce the 0.3 release of ppx_deriving, which is available for installation via OPAM. 0.3 --- * Show, Eq, Ord, Iter, Fold: handle ref. * Show: include break hints in format strings. * Show: pull fprintf into local environment. * Show: add [@polyprinter] and [@opaque]. : https://github.com/whitequark/ppx_deriving
Archive: https://sympa.inria.fr/sympa/arc/caml-list/2014-09/msg00069.htmlPeter Zotov announced:
I'd like to announce the initial release of ppx_deriving_yojson, a ppx_deriving plugin that generates Yojson serializers and deserializers from type definitions. It is available for installation via OPAM. : https://github.com/whitequark/ppx_deriving_yojson : https://github.com/whitequark/ppx_deriving
Thanks to Alp Mestan, we now include in the OCaml Weekly News the links to the recent posts from the ocamlcore planet blog at http://planet.ocaml.org/. Concatenation of a list of strings: http://shayne-fletcher.blogspot.com/2014/09/concatenation-of-list-of-strings.html OCaml 4.02.0 available: http://wodi.forge.ocamlcore.org/2014/09/04/ocaml-4.02.0.html Terms With Variables (C++): http://shayne-fletcher.blogspot.com/2014/08/terms-with-variables-c.html
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