This is my presentation on Shanghai on Rails at 3.20. It introduces static code analysis for ruby, tells you a pattern to analysis ruby code and gives you some examples that how rails_best_practices analysis rails codes.

1. Static Code Analysis for Ruby Richard Huang E kohe www.ekohe.com Web Development & Graphic Design China Ruby on Rails Development - Rails Consulting - Rails Services - Merb - Offshore Web Development

2. 有没有对 Ruby 代码进行过静态分析？ www.ekohe.com Web Development & Graphic Design China Ruby on Rails Development - Rails Consulting - Rails Services - Merb - Offshore Web Development

3. 案例 www.ekohe.com Web Development & Graphic Design China Ruby on Rails Development - Rails Consulting - Rails Services - Merb - Offshore Web Development

4. 有没有看过张文钿的演讲稿 Rails Best Practices ？ http://www.slideshare.net/ihower/rails-best-practices www.ekohe.com Web Development & Graphic Design China Ruby on Rails Development - Rails Consulting - Rails Services - Merb - Offshore Web Development

5. 有没有使用过 rails_best_practices gem ？ http://github.com/flyerhzm/rails_best_practices www.ekohe.com Web Development & Graphic Design China Ruby on Rails Development - Rails Consulting - Rails Services - Merb - Offshore Web Development

7. 静态分析什么？ 源程序？ www.ekohe.com Web Development & Graphic Design China Ruby on Rails Development - Rails Consulting - Rails Services - Merb - Offshore Web Development

9. s-expression www.ekohe.com Web Development & Graphic Design China Ruby on Rails Development - Rails Consulting - Rails Services - Merb - Offshore Web Development s(:class, :Student, nil, s(:scope, s(:block, s(:call, nil, :attr_accessor, s(:arglist, s(:lit, :name)) ), s(:defn, :initialize, s(:args, :name), s(:scope, s(:block, s(:iasgn, :@name, s(:lvar, :name)) ) ) ) ))) class Student attr_accessor :name def initialize(name) @name = name end end

10. s-expression www.ekohe.com Web Development & Graphic Design China Ruby on Rails Development - Rails Consulting - Rails Services - Merb - Offshore Web Development s(:defn, :output, s(:args, :arg1, :arg2), s(:scope, s(:block, s(:if, s(:call, s(:lvar, :arg1), :==, s(:arglist, s(:str, "hello")) ), s(:call, nil, :print, s(:arglist, s(:lvar, :arg1), s(:lvar, :arg2)) ), s(:call, nil, :print, s(:arglist, s(:lvar, :arg1)) ) ) ) ) ) def output(arg1, arg2) if arg1 == 'hello' print arg1, arg2 else print arg1 end end

12. 如何生成 s-expression www.ekohe.com Web Development & Graphic Design China Ruby on Rails Development - Rails Consulting - Rails Services - Merb - Offshore Web Development ruby 源代码 s-expression ruby_parser ruby2ruby

14. rails_best_practices 是如何做静态代码分析的？ www.ekohe.com Web Development & Graphic Design China Ruby on Rails Development - Rails Consulting - Rails Services - Merb - Offshore Web Development

15. rails_best_practices www.ekohe.com Web Development & Graphic Design China Ruby on Rails Development - Rails Consulting - Rails Services - Merb - Offshore Web Development rails_best_practices 结果输出 代码检查类 代码解析器 配置 源代码 5. 代码检查 2. 生成检查类集合 3. 分析源代码 4. 生成 s-expression 1. 读取配置 6. 显示检查结果

17. 代码解析 www.ekohe.com Web Development & Graphic Design China Ruby on Rails Development - Rails Consulting - Rails Services - Merb - Offshore Web Development erb files haml files ruby files src precompiled ruby_parser s-expression

18. 代码检查 www.ekohe.com Web Development & Graphic Design China Ruby on Rails Development - Rails Consulting - Rails Services - Merb - Offshore Web Development s-expression class defn call Check UseModelAssociationCheck MoveFinderToNamedScopeCheck if UseScopeAccessCheck LawOfDemeterCheck

20. rails_best_practices 做静态代码分析的 一些 思路 www.ekohe.com Web Development & Graphic Design China Ruby on Rails Development - Rails Consulting - Rails Services - Merb - Offshore Web Development

33. 静态代码分析 代码检查 代码重构 www.ekohe.com Web Development & Graphic Design China Ruby on Rails Development - Rails Consulting - Rails Services - Merb - Offshore Web Development

34. Q&A Thank you Website: http://www.huangzhimin.com Github: http://github.com/flyerhzm www.ekohe.com Web Development & Graphic Design China Ruby on Rails Development - Rails Consulting - Rails Services - Merb - Offshore Web Development