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João Maia
April 13, 2013
Programming
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Ruby: MRI, Rubinius, JRuby e outros
Palestra realizada no primeiro encontro do Pocando On Rails (Grupo de usuários Ruby do ES)
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April 13, 2013
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Transcript
Ruby: MRI, Rubinius, JRuby e outros João Víctor Rocon Maia
@jvrmaia #PocandoOnRails Saturday, April 13, 13
Supostamente falarei sobre mim nesse slide! Saturday, April 13, 13
Agenda - Teoria introdutória - A linguagem Ruby - MRI
- Rubinius - JRuby - Bônus Saturday, April 13, 13
O que é um compilador!? Saturday, April 13, 13
O que é um compilador!? Compilador Saturday, April 13, 13
Onde são usados? Analisadores léxicos Editores de texto Recuperação de
texto Reconhecimento de padrões Analisadores sintáticos Processamento de SQL Saturday, April 13, 13
Fases ANÁLISE SÍNTESE Saturday, April 13, 13
Fases ANÁLISE SÍNTESE Analisador léxico Analisador sintático Analisador semântico Gerador
de código intermediário Otimizador de código Gerador de código final Saturday, April 13, 13
Exemplo salario_liquido = salario_bruto - impostos ** 2 Saturday, April
13, 13
Exemplo salario_liquido = salario_bruto - impostos ** 2 identificador identificador
identificador atribuição operador subtração operador exponenciação inteiro meu nome é Token Saturday, April 13, 13
Exemplo salario_liquido = salario_bruto - impostos ** 2 = **
salario_liquido salario_bruto impostos 2 - Saturday, April 13, 13
Análise semântica Qual o tipo da variável “X”? A variável
“X” foi declarada? A expressão “x * y + z” é consistente no tipo? A função “puts” tem parâmetros? Saturday, April 13, 13
Resumindo Saturday, April 13, 13
C!? Cadê Ruby? Saturday, April 13, 13
ࢲ͜͜ʹ͍Δ Saturday, April 13, 13
Ruby Influências: Perl, Smalltalk, Eiffel e Lisp Paradigmas: funcional, orientado
a objetos e imperativo Saturday, April 13, 13
Ruby Características: - tipagem dinâmica - gerenciamento de memória (GC)
- GIL Saturday, April 13, 13
Ruby Implementações: - MRI: oficial em C - Rubinius: bytecode
C++(LLVM) escrita em Ruby - JRuby: Java - MacRuby: Objective-C - IronRuby: .NET - MagLev: Smalltalk - Cardinal: Parrot VM - Topaz: Python (PyPy) Saturday, April 13, 13
RubySpec NÃO É “OFICIAL”! http://rubyspec.org/ Ruby Conf 12 Toward a
Design for Ruby by Brian Ford http://youtu.be/BagNfTbXn3w Saturday, April 13, 13
MRI Matz Ruby Interpreter Saturday, April 13, 13
MRI • Mirror: https://github.com/ruby/ruby • parser.y: 11422 LOC (http://goo.gl/kxH6C) •
YARV • C http://www.ruby-lang.org/en/ Saturday, April 13, 13
MRI Código Ruby Tokenize Parse Compile Instruções YARV não usa
Flex feito em C no parse.y Bison (LALR) parse.y e parser.c Saturday, April 13, 13
MRI Saturday, April 13, 13
MRI Saturday, April 13, 13
MRI Saturday, April 13, 13
MRI Saturday, April 13, 13
MRI trace putself putobject 2 putobject 2 opt_plus opt_send_simple (puts)
leave PC SP Saturday, April 13, 13
MRI trace putself putobject 2 putobject 2 opt_plus opt_send_simple (puts)
leave PC SP Saturday, April 13, 13
MRI trace putself putobject 2 putobject 2 opt_plus opt_send_simple (puts)
leave PC self SP Saturday, April 13, 13
MRI trace putself putobject 2 putobject 2 opt_plus opt_send_simple (puts)
leave PC self SP 2 Saturday, April 13, 13
MRI trace putself putobject 2 putobject 2 opt_plus opt_send_simple (puts)
leave PC self SP 2 2 Saturday, April 13, 13
MRI trace putself putobject 2 putobject 2 opt_plus opt_send_simple (puts)
leave PC self SP 4 Saturday, April 13, 13
MRI trace putself putobject 2 putobject 2 opt_plus opt_send_simple (puts)
leave PC nil SP Saturday, April 13, 13
Rubinius http://rubini.us/ + = “An environment for the Ruby programming
language providing performance, accessibility, and improved programmer productivity” 93% dos testes passando no RubySpec compatível com MRI 1.8, e 1.9 e 2.0 em progresso concorrência? Threads, Fibers e agora Actors (sem GIL) Saturday, April 13, 13
Rubinius Saturday, April 13, 13
Rubinius Saturday, April 13, 13
Rubinius Código Ruby Tokenize Parse Compile Instruções Rubinius(.rbc) parser.y generate
parser (bison) parser.c Saturday, April 13, 13
Rubinius (rbx-2.0.0-rc1) Saturday, April 13, 13
JRuby http://jruby.org/ “ The Ruby Programming Language on the JVM
” Why JRuby? http://youtu.be/etCJKDCbCj4 High Performance Ruby http://vimeo.com/61255646 Saturday, April 13, 13
JRuby Código Ruby Tokenize Parse Compile JVM bytecode parser.y generate
parser (jay) parser.java Saturday, April 13, 13
JRuby Saturday, April 13, 13
JRuby Saturday, April 13, 13
JRuby Saturday, April 13, 13
JRuby Saturday, April 13, 13
JRuby Saturday, April 13, 13
JRuby Saturday, April 13, 13
Bônus https://github.com/topazproject Saturday, April 13, 13
Topaz? Por quê? Saturday, April 13, 13
Topaz? Por quê? Rápido! PyPy é muito poderoso! Saturday, April
13, 13
Topaz? Por quê? Rápido! PyPy é muito poderoso! Prove! Saturday,
April 13, 13
Topaz? Por quê? Rápido! PyPy é muito poderoso! Prove! toma
ae! http://goo.gl/UpA7s Saturday, April 13, 13
Why Python, Ruby and Javascript are Slow? Vídeo: http://vimeo.com/61044810 Why
PyPy? Vídeo: http://youtu.be/P5ad6NpjR3M Vídeo: http://youtu.be/Q9wf63flICs PyPy without the GIL Saturday, April 13, 13
Referências Bison http://goo.gl/Pmbns Ruby Under Microscope http://goo.gl/siEiv Compilers: Principles, Techniques,
and Tools http://goo.gl/Y4Dtg So you want to write an interpreter? http://goo.gl/UfbxC Saturday, April 13, 13
ײँ ࣭͋Γ·͔͢ʁ Saturday, April 13, 13