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## Functional## Breaking the Complexity Barrier of Pure Functional Programs with Impure Data StructuresBreaking the Complexity Barrier of Pure Functional Programs with Impure Data Structures by Pieter Wuille and Tom Schrijvers:
This paper is along the same lines a question I asked a couple of years ago. The idea here is to allow programming using immutable interfaces, and then automatically transform it into a more efficient mutable equivalent. ## Apple Introduces SwiftApple today announced a new programming language for their next version of Mac OS X and iOS called Swift. The Language Guide has more details about the potpourri of language features. By bashyal at 2014-06-02 19:53 | Functional | General | OOP | 112 comments | other blogs | 60063 reads
## Functional Geometry and the Traite Ì de LutherieFunctional Geometry and the Traite Ì de Lutherie by Harry Mairson, Brandeis University.
## The Size-Change Termination Principle for Constructor Based LanguagesThe Size-Change Termination Principle for Constructor Based Languages, by Pierre Hyvernat:
Looks like a relatively straightforward and complete description of a termination checker based on a notion of 'sized types' limited to first-order programs. LtU has covered this topic before, although this new paper doesn't seem to reference that particular Abel work. By naasking at 2013-09-19 01:59 | Functional | Theory | login or register to post comments | other blogs | 12491 reads
## Dependently-Typed Metaprogramming (in Agda)Conor McBride gave an 8-lecture summer course on Dependently typed metaprogramming (in Agda) at the Cambridge University Computer Laboratory:
The lecture notes, code, and video captures are available online. As with his previous course, the notes contain many(!) mind expanding exploratory exercises, some of which quite challenging. By Ohad Kammar at 2013-08-30 07:34 | Category Theory | Functional | Lambda Calculus | Meta-Programming | Paradigms | Semantics | Teaching & Learning | Theory | Type Theory | 5 comments | other blogs | 14267 reads
## Extensible Effects -- An Alternative to Monad TransformersExtensible Effects -- An Alternative to Monad Transformers, by Oleg Kiselyov, Amr Sabry and Cameron Swords:
A follow-up to Oleg's delimited continuation adaptation of Cartwright and Felleisen's work on Extensible Denotational Language Specifications, which is a promising alternative means of composing effects to the standard monad transformers. This work embeds a user-extensible effect EDSL in Haskell by encoding all effects into a single effect monad using a novel open union type and the continuation monad. The encoding is very similar to recent work on Algebraic Effects and Handlers, and closely resembles a typed client-server interaction ala coroutines. This seems like a nice convergence of the topics covered in the algebraic effects thread and other recent work on effects, and it's more efficient than monad transformers to boot. By naasking at 2013-07-29 14:53 | Functional | Logic/Declarative | Theory | Type Theory | 22 comments | other blogs | 30929 reads
## How OCaml type checker works -- or what polymorphism and garbage collection have in commonHow OCaml type checker works -- or what polymorphism and garbage collection have in common
As usual with Oleg, there's a By Paul Snively at 2013-03-10 16:25 | Functional | Implementation | Type Theory | 1 comment | other blogs | 15608 reads
## Visi.ioVisi.io comes from David Pollak and aims at revolutionizing building tablet apps, but the main attraction now seems to be in exploring the way data flow and cloud computing can be integrated. The screencast is somewhat underwhelming but at least convinces me that there is a working prototype (I haven't looked further than the website as yet). The vision document has some nice ideas. Visi.io came up recently in the discussion of the future of spreadsheets. By Ehud Lamm at 2012-10-27 09:36 | Functional | Logic/Declarative | Parallel/Distributed | 2 comments | other blogs | 12201 reads
## Milner Symposium 2012The Milner Symposium 2012 was held in Edinburgh this April in memory of the late Robin Milner.
The programme consisted of academic talks by colleagues and past students. The talks and slides are available online. I particularly liked the interleaving of the personal and human narrative underlying the scientific journey. A particularly good example is Joachim Parrow's talk on the origins of the pi calculus. Of particular interest to LtU members is the panel on the future of functional programming languages, consisting of Phil Wadler, Xavier Leroy, David MacQueen, Martin Odersky, Simon Peyton-Jones, and Don Syme. By Ohad Kammar at 2012-10-16 17:31 | Functional | General | History | Parallel/Distributed | Semantics | Theory | 3 comments | other blogs | 13492 reads
## CUFP 2012 TutorialsIf you are in Denmark in September you should attend. If not, raise a glass to salute what is now abundantly clear: FPLs are conquering the ("real") world. |
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