General Development Archive

A detailed comparison of two novel approaches to developing web apps : Node.js and Opa. Both technologies are open source, allow writing "Hello world" web app in just a few lines and both focus on the Web rather than on generic programming. However, Opa seems to be much more concise, is strongly typed and by design makes most popular security threats void.

"In this blog post (and the one that will follow) we'd like to introduce a few of the broad reaching experience improvements that we've delivered in Visual Studio 11. We've worked hard on them over the last two years and believe that they will significantly improve the experience that you will have with Visual Studio."

"As an industry trend, advancement in heterogeneous hardware has progressed at a rapid pace. This in turn has fueled developer desire to target such hardware for accelerated computation, necessitating a significant step forward in programming models to enable such practices. C++ Accelerated Massive Parallelism (C++ AMP) is a new technology implemented in Visual Studio 11 that helps C++ developers use accelerators such as the GPU for parallel programming."

InfoWorld's Rick Grehan takes an in-depth look at Opa, MLstate's attempt to provide a single language for Web app development, and one of 10 cutting-edge programming languages that could shake up the future of IT. "With Opa, you write your Web application as though it were a single-tier program, and the compiler handles the knotty details of partitioning your program and deploying the resulting components to their proper domains. The compiler also builds the communication infrastructure among application components, and that infrastructure is invisibly managed by the runtime. The security weaknesses inherent in today's Web applications are virtually eliminated."

This is a call out for help on creating a consistent and native feeling on Mac OS X and Linux. As I have never owned a Mac and haven't used Linux as my main OS for over 3 years I need the community of OSNews to help me do this.

It has been 6 years since we last mentioned Shed Skin, a restricted-Python to C++ compiler (Python 2.4-2.6). In the meantime, development has continued at a rapid pace. Shed Skin has taken part in the GSOC and GHOP projects. It is now able to generate extension modules, which can be used in larger Python programs. Its type inference engine has become orders of magnitude faster. One of the Shed Skin example programs, a work-in-progress C64 emulator is now compiled in under a minute on a fast PC. In total there are 64 non-trivial example programs. As may be expected from a static compiler, performance is better than when using PyPy in many cases. Though of course we have to mention that PyPy is much less restricted, and also improving at a rapid pace.

InfoWorld's Neil McAllister takes a look at 10 cutting-edge programming languages, "each of which approaches the art of software development from a fresh perspective, tackling a specific problem or a unique shortcoming of today's more popular languages. Some are mature projects, while others are in the early stages of development. Some are likely to remain obscure, but any one of them could become the breakthrough tool that changes programming for years to come - at least, until the next batch of new languages arrives."

Orion, the Eclipse Foundation effort to build a browser based IDE, released its next milestone edition called Orion 0.4 M1, which includes improvements such as a HTML syntax validation, CodeMirror syntax highlighting, CodeMirror mixed mode syntax highlighting, CodeMirror dynamic syntax validation, a new content type service, default text editor, and lastly an HTML outliner plug-in.

Fatal Exception's Neil McAllister writes in favor of new programming languages given the difficulty of upgrading existing, popular languages. 'Whenever a new programming language is announced, a certain segment of the developer population always rolls its eyes and groans that we have quite enough to choose from already,' McAllister writes. 'But once a language reaches a certain tipping point of popularity, overhauling it to include support for new features, paradigms, and patterns is easier said than done.' PHP 6, Perl 6, Python 3, ECMAScript 4 -- 'the lesson from all of these examples is clear: Programming languages move slowly, and the more popular a language is, the slower it moves. It is far, far easier to create a new language from whole cloth than it is to convince the existing user base of a popular language to accept radical changes.'

"Ceylon is a programming language for writing large programs in a team environment. The language is elegant, highly readable, extremely typesafe, and makes it easy to get things done. And it's easy to learn for programmers who are familiar with mainstream languages used in business computing. Ceylon has a full-featured Eclipse-based development environment, allowing developers to take best advantage of the powerful static type system. Programs written in Ceylon execute on any JVM."

"The PyPy development team has released version 1.7 of its 'very compliant' Python interpreter with integrated tracing just-in-time compiler. The developers say that the focus of the new update was widening the range of code that PyPy can speed up, which the developers refer to as the 'sweet spot'. In their benchmarks, PyPy 1.7 performs approximately 30 per cent faster than 1.6 and 'up to 20 times faster on some benchmarks'."

Fatal Exception's Neil McAllister discusses why code analysis and similar metrics provide little insight into what really makes an effective software development team, in the wake of a new scorecard system employed at IBM. "Code metrics are fine if all you care about is raw code production. But what happens to all that code once it's written? Do you just ship it and move on? Hardly - in fact, many developers spend far more of their time maintaining code than adding to it. Do your metrics take into account time spent refactoring or documenting existing code? Is it even possible to devise metrics for these activities?" McAllister writes, "Are developers who take time to train and mentor other teams about the latest code changes considered less productive than ones who stay heads-down at their desks and never reach out to their peers? How about teams that take time at the beginning of a project to coordinate with other teams for code reuse, versus those who charge ahead blindly? Can any automated tool measure these kinds of best practices?"

A small company called AppMobi is enabling developers to create HTML5 apps that tap into native hardware and OS capabilities of mobile devices, such as gravity sensing, accelerometer, GPS, camera, sound and vibration, and the file system, InfoWorld reports. 'Its MobiUs browser for iOS implements HTML5's DirectCanvas API for gaming, as well as the HTML5 local storage API for saving executables and data in the browser cache so that apps can run offline. But what makes MobiUs more than just yet another browser is the set of libraries AppMobi provides app developers to access native hardware and enable push messaging from Web apps.'

The news already hit HackerNews late last night, but at that time there was no confirmation so I decided to wait until we knew for sure. Well, after Dennis Ritchie and Steve Jobs, the technology world lost another great mind yesterday. Stanford has confirmed that John McCarthy, the creator of LISP and the father of artificial intelligence, has passed away, age 84.