XRuby Enjoy Ruby on JVM Ye Zheng http://dreamhead.blogbus.com

Agenda What is XRuby XRuby Architecture XRuby Jump Start More on XRuby

What is XRuby

XRuby Architecture

XRuby Jump Start

More on XRuby

Agenda What is XRuby XRuby Architecture XRuby Jump Start More on XRuby

What is XRuby

XRuby Architecture

XRuby Jump Start

More on XRuby

What is XRuby XRuby is the first Ruby to Java compiler which compiles Ruby source code (.rb) to Java bytecode (.class). XRuby .rb .class

XRuby is the first Ruby to Java compiler which compiles Ruby source code (.rb) to Java bytecode (.class).

XRuby current status The latest version is 0.3.0. test::unit works. XRuby debugger provided Java to Ruby binding annotation. Runs most benchmark faster than ruby 1.8.6.

The latest version is 0.3.0.

test::unit works.

XRuby debugger provided

Java to Ruby binding annotation.

Runs most benchmark faster than ruby 1.8.6.

Two Ways to JVM(I) Interpretation current C Ruby way easy to port needs interpretation engine slow Ruby Script Parser AST

Interpretation

current C Ruby way

easy to port

needs interpretation engine

slow

Two Ways to JVM(II) Compilation needs more explorations uses JVM as execution engine protects source code fast Ruby Script Compiler .class

Compilation

needs more explorations

uses JVM as execution engine

protects source code

fast

Why Compilation is Faster Compilation is faster than interpretation JVM JVM Interpretation Engine Ruby Script Ruby Script Interpretation Compilation

Compilation is faster than interpretation

Misunderstandings It erases dynamic language features. Dynamic structure written in Java is developed to support dynamic language features It maps Ruby class to Java class directly. Ruby class is a dynamic language structure, and it is different from Java class which is a static structure

It erases dynamic language features.

Dynamic structure written in Java is developed to support dynamic language features

It maps Ruby class to Java class directly.

Ruby class is a dynamic language structure, and it is different from Java class which is a static structure

Agenda What is XRuby XRuby Architecture XRuby Jump Start More on XRuby

What is XRuby

XRuby Architecture

XRuby Jump Start

More on XRuby

XRuby Architecture (overview) XRuby Compiler Runtime Parser Codegen Codedom Lang Builtin Java Support

XRuby Architecture (compiler) Parser .rb .class Tree Parser Code Gen AST Code Dom Antlr ASM XRuby Compiler

XRuby Architecture (runtime) Dynamic Language Support Builtin Java Support XRuby Runtime

Agenda What is XRuby XRuby Architecture XRuby Jump Start More on XRuby

What is XRuby

XRuby Architecture

XRuby Jump Start

More on XRuby

XRuby Jump Start (Ruby code) class MyClass def say_hello_three_times 3.times { puts "hello"} end end MyClass.new.say_hello_three_times

class MyClass

def say_hello_three_times

3.times { puts "hello"}

end

end

MyClass.new.say_hello_three_times

XRuby Jump Start (compile and run) Compile java -jar xruby-0.3.0.jar -c demo.rb Run java -jar demo.jar Output hello hello hello

Compile

java -jar xruby-0.3.0.jar -c demo.rb

Run

java -jar demo.jar

Output

hello

hello

hello

XRuby Jump Start (builtin) @RubyLevelClass(name="Array") public class RubyArray … { … @RubyLevelMethod(name="length") public RubyFixnum length() { return ObjectFactory.createFixnum(this.array_.size()); } … }

@RubyLevelClass(name="Array")

public class RubyArray … {

…

@RubyLevelMethod(name="length")

public RubyFixnum length() {

return ObjectFactory.createFixnum(this.array_.size());

}

…

}

XRuby Jump Start (reference) XRuby Hacking Guide is a good start to understand XRuby. Ruby Hacking Guide is a good reference to Ruby implementation. Builtin is a good start and reference to XRuby code.

XRuby Hacking Guide is a good start to understand XRuby.

Ruby Hacking Guide is a good reference to Ruby implementation.

Builtin is a good start and reference to XRuby code.

Agenda What is XRuby XRuby Architecture XRuby Start-up More on XRuby

What is XRuby

XRuby Architecture

XRuby Start-up

More on XRuby

XRuby’s Future XRuby 0.4.0 Pass all C Ruby tests (Milestone) Compile multiple ruby scripts into one jar Implement more builtin libraries Improve performance Long Term Make Ruby on Rails work Upgrade Antlr to 3.0

XRuby 0.4.0

Pass all C Ruby tests (Milestone)

Compile multiple ruby scripts into one jar

Implement more builtin libraries

Improve performance

Long Term

Make Ruby on Rails work

Upgrade Antlr to 3.0

Contribution to XRuby Principles Every contribution is welcome. Every attempt is encouraged. Approaches Use XRuby Report bugs Commit patches. Join mailing list to share ideas. Become a XRuby project member. …

Principles

Every contribution is welcome.

Every attempt is encouraged.

Approaches

Use XRuby

Report bugs

Commit patches.

Join mailing list to share ideas.

Become a XRuby project member.

…

Enjoy XRuby Enjoy development of a compiler. Ruby is a elegant language. Work with JVM. Understand dynamic language internals. Contribute to open source. We can grow with XRuby since it’s new.

Enjoy development of a compiler.

Ruby is a elegant language.

Work with JVM.

Understand dynamic language internals.

Contribute to open source.

We can grow with XRuby since it’s new.

For More Information Homepage http://www.xruby.com Project Homepage http://code.google.com/p/xruby/ Project Blog http://xruby.blogspot.com Project Group http://groups.google.com/group/xruby-devel

Homepage

http://www.xruby.com

Project Homepage

http://code.google.com/p/xruby/

Project Blog

http://xruby.blogspot.com

Project Group

http://groups.google.com/group/xruby-devel

Welcome to XRuby