The Parrot VM
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Its goals and challenges for dynamic languages.
![The Parrot VM (40’) Its goals and challenges for dynamic languages François Perrad [email_address]](https://image.slidesharecdn.com/parrot-091005034334-phpapp01/85/the-parrot-vm-1-320.jpg)
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The Parrot VM
- 1. The Parrot VM (40’) Its goals and challenges for dynamic languages François Perrad [email_address]
- 6. A stack of commodities My Web App
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- 8. A stack of commodities Hardware : x86 Operating System My Web App
- 9. A stack of commodities Hardware : i386 Operating System : Linux Web Framework My Web App
- 10. A stack of commodities Hardware : i386 – multi core Operating System : Linux Virtual Machine (Interpreter) Web Framework My Web App
- 12. C/C+ implementation Lua 5.1, LuaJIT 5.1 Lua Ruby 1.8, Ruby 1.9 (YARV), Rubinius Ruby SpiderMonkey, V8, … JavaScript CPython 2.6, CPython 3.1, Stackless, Psyco V2 (JIT), Unladen Swallow 2.6 (llvm) Python Perl 5.8, Perl 5.10 Perl - VisualBasic PHP 4.x, PHP 5.x PHP
- 13. JVM implementation Groovy 1.6 Groovy Scala 2.7 Scala Kahlua (J2ME) Lua JRuby 1.8 Ruby Rhino JavaScript JPython 2.5 Python - Perl - PHP
- 14. .NET/mono implementation ? Scala - Lua IronRuby Ruby JScript.NET JavaScript IronPython Python - Perl VB.NET VisualBasic Phalanger PHP
- 22. "one bytecode to rule them all " Credit : http://img-fan.theonering.net/rolozo/images/verger/PICT1619.JPG
Notas del editor
- Hobby : compiler writer Not in core, but in languages ie user side Check the goal of Parrot : not only a VM for Perl6
- CLR : Common Language Runtime DLR : Dynamic Language Runtime JSR : Java Specification Request JSR 292 : Supporting Dynamically Typed Languages on the Java Platform
- Now, do some Marketing Not the best product, just enougt until the next technological breakthrough.
- Industrial & FOSS objectives
- In 1985, IBM commodotizes the Personal Computer Open Spec => compatible Harware : under control with Intel 8086 Software : forget with Microsoft DOS Apple survives in niche
- With Moore Law, x86 becomes server Unix guys dislike i386 The winner is Linux, distributed FOSS development. MS Windows (proprietary) is on Desktop.
- Only FOSS actors, but 2 flavors : OW2 & Apache Fondation : consortium (R&D mutualisation), Java Dynamic languages (geek) : Catalyst (Perl), Rails (Ruby),
- .NET CLR/DLR & mono JVM Parrot frequency grow is ended, Moore Law deals now with Multi core processor
- Not yet majority But dynamic/static ratio moves from 30-70% to 40-60% In the following slides, I sort languages by their rank on TIOBE (Sept 2009) 3. PHP 5. VB.NET 6. Perl 8. Python 9. JavaScript 10. Ruby 19. Lua
- Excludes all bridge
- No VB.NET & never Groovy new entrant, and a special case : targets only JVM
- Jython example : - targets last CPython - targets CPython modules - targets JVM, just a script language with access to Java objet/classe/framework Groovy has not this kind of dilemme.
- FFI : Foreign function interface
- PGE is a recursive descent parser + operator precedence NQP is a subset of Perl6 As example, the core of Lua on Parrot is only 4 KLOC
- Development based on monthly release
- Plumage : - metadata search - handles dependencies - install modules
- Credit : http://img-fan.theonering.net/rolozo/images/verger/PICT1619.JPG