typo の傾向と対策

https://www.slideshare.net/ckazu/typo-11702025

Transcript

1. typo ͷ܏޲ͱରࡦ 2012-02-22 kchinda@aiming-inc.com (a.k.a. @ckazu)
2. about me •@ckazu • •౦ژ։ൃG •Rails ʹΑΔαΠτ։ൃ •Rails + JS ʹΑΔ ϒϥ΢βήʔϜ։ൃ •Rails, Ruby Λۀ຿Ͱ࢖͍࢝Ίͯ17ϲ݄
3. Shinjuku.rb #01
4. http://www.slideshare.net/ckazu/rails5
5. Έͳ͞Μ
6. typo ͯ͠·͔͢
7. typo Λͳ͘͠·͠ΐ͏
8. ࠓ೔ͷ಺༰ •typo ͍͔ʹࠀ෰͢Δ͔
9. typo ͷ܏޲ͱରࡦ
10. ܏޲ͦͷ̍ •ೖΕସΘΓ •User.count → User.coutn
11. ղܾࡦ̍ module TypoFixer def self.included(base) base.class_eval do alias_method :method_missing_without_fix_typo, :method_missing alias_method :method_missing, :method_missing_with_fix_typo end end def method_missing_with_fix_typo(name, *args) if name && method = find_method(name) $stderr.puts "WARNING: execute `#{name}` as `#{method}` for #{self}" send(method, *args) else method_missing_without_fix_typo(name, *args) end end private def find_method name name.to_s.split(//).permutation.each do |candidate| _candidate = candidate.join return _candidate if respond_to?(_candidate, true) end nil end end https://gist.github.com/1870273 ૊Έ߹ΘͤΛશνΣοΫ
12. ղܾࡦ̍ require 'typo_fixer' class Sample include TypoFixer def some_method 'some value' end end sample = Sample.new p sample.sme_motoehd #=> 'some value' p sample.sme_motoehd.reveres #=> error! https://gist.github.com/1870273
13. ղܾࡦ̍ require 'typo_fixer' class Object include TypoFixer end p [1, 2, 3].shaflfe.joni #=> "213" https://gist.github.com/1870273 ͜Θ͍Ͱ͢Ͷɽ
14. ܏޲ͦͷ̎ •Ұจࣈ͚ͩҧ͏ •User.count → User.caunt
15. ղܾࡦ̎ module TypoFixer def self.included(base) base.class_eval do alias_method :method_missing_without_fix_typo, :method_missing alias_method :method_missing, :method_missing_with_fix_typo end end def method_missing_with_fix_typo(name, *args) if method = find_method(name) $stdout.print "WARNING: execute `#{name}` as `#{method}`? [Y/n] " return send(method, *args) if ($stdin.getc == 'Y') end method_missing_without_fix_typo(name, *args) end private def find_method name self.class.instance_methods.each do |method| next unless method.size == name.size if(method.to_s.split(//) - name.to_s.split(//)).size == 1 return method end end end end https://gist.github.com/1883331 ͱΓ͋͑ͣͦΕͬΆ͍ͷΛฦ͢ ഑ྻͷํ͕ྑ͍Ͱ͢Ͷ
16. ղܾࡦ̎ require 'typo_fixer' class Object include TypoFixer end p "some string".revarse #=> "gnirts emos" https://gist.github.com/1870273
17. ܏޲ͦͷ̏ •গͳ͍ •array.flatten → array.flaten
18. ղܾࡦ̏ •഑ྻʹͯ͠ൺֱͨ͠ͱ͖ʹ ͻͱ͚ͭͩҧ͏ͷͰɼ ղܾࡦ̎ͱ΄΅ಉ͡
19. ܏޲ͦͷ̐ •ଟ͍ •car.control → car.controll
20. ղܾࡦ̐ •഑ྻʹͯ͠ൺֱͨ͠ͱ͖ʹ ͻͱ͚ͭͩҧ͏ͷͰɼ ղܾࡦ̎ͱ΄΅ಉ͡
21. ܏޲ͦͷ̑ •ෳ߹ܕ •User.fin_dvy_id(di)
22. ղܾࡦ̑ •͜͜·Ͱؾʹ͍ͯ͠ΒΕͳ͍
23. ղܾࡦʁ •ఆٛ͞Ε͍ͯΔ method ͱ typo ͱͷ ୯ޠؒͷڑ཭ʢྨࣅ౓ʣΛࢉग़ͯ͠ ީิΛఏҊ͢Δ
24. ୭͔࡞͍ͬͯͩ͘͞
25. ൪֎ฤ
26. ൪֎ฤ •ମҭձܥղܾࡦ
27. ૉৼΓ
28. λΠϐϯά΋४උӡಈେࣄ
29. جૅ࿅େࣄ
30. ே࿅͠·͠ΐ͏
31. बۀ࣌ʹ͸ډ࢒Γಛ܇͠·͠ΐ͏
32. ແੑʹλΠϐϯά͠·͘Γͨ͘ͳΔ͜ͱ ͋Γ·ͤΜ͔ʁ
33. ϓϩάϥϚͷͨΊͷૉৼΓαΠτ http://suburi.herokuapp.com/ ௒ϓϩτλΠϓ൛ʂ όάͯΜ͜੝Γʂ
34. ऴ