Cobra (programming language)

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
ParadigmMulti-paradigm: object-oriented
Designed byCharles Esterbrook
DeveloperCobra Language LLC
First appeared2006 (2006)
Final release
0.9.6 / December 23, 2013 (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 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'
gollark: Nim has this.
gollark: Idea: asynchronous palaiologos for python named palAIOlogos.
gollark: How palaiologicalaiopalaiological.
gollark: That WORKS?
gollark: ++remind Wednesday thing (3)

References
  1. "The Cobra Programming Language". Cobra Language LLC. 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. Retrieved 2010-08-31.
  4. Neward, Ted (June 2009). "Reaping the Benefits of Cobra". MSDN Magazine.
  5. Erickson, Jonathan (April 2008). "Was George Costanza a Computer Programmer?". Dr. Dobb's Journal.
  6. Morris, Richard (April 2010). "Chuck Esterbrook: Geek of the Week". simple-talk.
  7. Krill, Paul (Feb 7, 2008). "Cobra language slithering to open source". InfoWorld. Retrieved 2010-08-31.
  8. "The Cobra Programming Language". Cobra Language LLC. Retrieved 2008-02-29.
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