Cobra (programming language)

From HandWiki
Cobra
ParadigmMulti-paradigm: object-oriented
Designed byCharles Esterbrook
DeveloperCobra Language LLC
First appeared2006; 18 years ago (2006)
Final release
0.9.6 / December 23, 2013; 10 years ago (2013-12-23)
Typing disciplinestrong, static, dynamic, inferred
OSMicrosoft .NET, Mono
LicenseMIT
Filename extensions.cobra
Websitecobra-language.com
Influenced by
Python, Eiffel, C#, Objective-C

Cobra is a discontinued general-purpose, object-oriented programming language.[1] Cobra is designed by Charles Esterbrook, and runs on the Microsoft .NET and Mono platforms.[2] It is strongly influenced by Python, C#, Eiffel, Objective-C, and other programming languages.[3] It supports both static and dynamic typing.[4][5] It has support for unit tests and contracts.[4] It has lambda expressions, closures, list comprehensions, and generators.[6]

Cobra is an open-source project; it was released under the MIT License on February 29, 2008.[7][8]

Features

Object-oriented
  • Namespaces
  • Classes, interfaces, structs, extensions, enumerations
  • Methods, properties, indexers
  • Mixins, extension methods
  • Generics, attributes
Quality control
Expressiveness
  • Static and dynamic binding
  • List, dictionary, and set literals
  • in and implies operator
  • for expressions
  • Slicing
  • Interpolated strings
  • Compile-time type inference
  • Lambdas and closures
General productivity
Scripting conveniences
  • Clean syntax
  • Dynamic binding
  • One-step run
  • Shebang line (#!)
Miscellaneous

Examples

The following examples can be run from a file using cobra <filename>.

Hello World

class Hello
    def main
        print 'HELLO WORLD'

A simple class

class Person

    var _name as String
    var _age as int

    cue init(name as String, age as int)
        _name, _age = name, age

    def toString as String is override
        return 'My name is [_name] and I am [_age] years old.'

References

  1. "The Cobra Programming Language". Cobra Language LLC. http://cobra-language.com. Retrieved 2012-09-26. 
  2. Charles Esterbrook (Jan 28, 2008). Lang.NET Symposium 2008 – The Cobra Programming Language. Microsoft. Archived from the original (wmv) on March 26, 2009. Retrieved 2010-08-31.
  3. Bridgwater, Adrian (5 March 2008). "Cobra takes a bite at open source". ZDNet UK. http://www.zdnet.co.uk/news/application-development/2008/03/05/cobra-takes-a-bite-at-open-source-39362140/. Retrieved 2010-08-31. 
  4. 4.0 4.1 Neward, Ted (June 2009). "Reaping the Benefits of Cobra". MSDN Magazine. http://msdn.microsoft.com/en-us/magazine/dd882513.aspx. 
  5. Erickson, Jonathan (April 2008). "Was George Costanza a Computer Programmer?". Dr. Dobb's Journal. http://www.ddj.com/architect/207400254. 
  6. Morris, Richard (April 2010). "Chuck Esterbrook: Geek of the Week". Simple-talk. http://www.simple-talk.com/opinion/geek-of-the-week/chuck-esterbrook-geek-of-the-week/. 
  7. Krill, Paul (Feb 7, 2008). "Cobra language slithering to open source". InfoWorld. http://www.infoworld.com/d/developer-world/cobra-language-slithering-open-source-202. Retrieved 2010-08-31. 
  8. "The Cobra Programming Language". Cobra Language LLC. http://cobra-language.com/downloads/source/. Retrieved 2008-02-29. 

External links