Linked by Thom Holwerda on Mon 11th Feb 2013 22:59 UTC
General Development "I feel like writing about the Go programming language (or 'Golang') today, so instead today's topic is computer stuff. For the record, the language I've programmed the most in has been Python, so that’s the perspective I'm analyzing it from." Some good and bad things about Go.
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RE[2]: Meh
by Jondice on Tue 12th Feb 2013 13:25 UTC in reply to "RE: Meh"
Jondice
Member since:
2006-09-20

You may want to check out the ATS language, though I'm still warming up to the "look" of the syntax. No time to post my thoughts, so here's the blurb from their site. (There's also a kernel and some linux drivers written in ATS):

"ATS is a statically typed programming language that unifies implementation with formal specification. It is equipped with a highly expressive type system rooted in the framework Applied Type System, which gives the language its name. In particular, both dependent types and linear types are available in ATS. The current implementation of ATS (ATS/Anairiats) is written in ATS itself. It can be as efficient as C/C++ (see The Computer Language Benchmarks Game for concrete evidence) and supports a variety of programming paradigms that include:

Functional programming. The core of ATS is a functional language based on eager (aka. call-by-value) evaluation, which can also accommodate lazy (aka. call-by-need) evaluation. The availability of linear types in ATS often makes functional programs written in it run not only with surprisingly high efficiency (when compared to C) but also with surprisingly small (memory) footprint (when compared to C as well).

Imperative programming. The novel and unique approach to imperative programming in ATS is firmly rooted in the paradigm of programming with theorem-proving. The type system of ATS allows many features considered dangerous in other languages (e.g., explicit pointer arithmetic and explicit memory allocation/deallocation) to be safely supported in ATS, making ATS a viable programming language for low-level systems programming.

Concurrent programming. ATS, equipped with a multicore-safe implementation of garbage collection, can support multithreaded programming through the use of pthreads. The availability of linear types for tracking and safely manipulating resources provides an effective means to constructing reliable programs that can take advantage of multicore architectures.

Modular programming. The module system of ATS is largely infuenced by that of Modula-3, which is both simple and general as well as effective in supporting large scale programming.

In addition, ATS contains a subsystem ATS/LF that supports a form of (interactive) theorem-proving, where proofs are constructed as total functions. With this component, ATS advocates a programmer-centric approach to program verification that combines programming with theorem-proving in a syntactically intertwined manner. Furthermore, this component can serve as a logical framework for encoding deduction systems and their (meta-)properties.

What is ATS good for?

ATS can enforce great precision in practical programming.

ATS allows the programmer to write efficient functional programs that directly manipulate native unboxed data representation.

ATS allows the programmer to reduce the memory footprint of a program by making use of linear types.

ATS allows the programmer to enhance the safety (and efficiency) of a program by making use of theorem-proving.

ATS allows the programmer to write safe low-level code that runs in OS kernels.

ATS can help teach type theory, demonstrating concretely the power and potential of types in constructing high-quality software."

Edited 2013-02-12 13:28 UTC

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