clangのtoolを直接叩いてiOSアプリ開発をパワーアップ！

clang-formatとかclang-checkをiOSアプリ開発（Objective-C）でも使ってみようという話。

Transcript

1. clangͷtoolΛ௚઀ୟ͍ͯ
   iOSΞϓϦ։ൃΛύϫʔΞοϓʂ
   ॴ ༑ଠ @tokorom
   iOS App Programer
   These are “not” confidential sessions—please diffuse by your blogging and twitter
   potatotips #5
   

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2. clangͱ͸ʁ
   • γʔϥϯά͡Όͳͯ͘ Ϋϥϯ (ˈklæŋ)
   •ϓϩάϥϛϯάݴޠ CɺC++ɺObjective-Cɺ
   Objective-C++ ޲͚ͷίϯύΠϥϑϩϯτΤϯυ
   ྆ํͱ΋WikipediaΑΓ
   

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3. ࠓ೔঺հ͢Δͷ͸
   • ίʔυϑΥʔϚολʔʢclang-formatʣ
   • γϯλοΫενΣοΫʢclang-checkͱ͔ʣ
   • ͕࣌ؒ͋Ε͹ ιʔείʔυิ׬ʢclang -code-
   completion-atʣ΋΍Γ͔͚ͨͬͨͲ·ͨࠓ౓
   

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4. ίʔυϑΥʔϚολʔʢclang-format)
   

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5. clang-format
   

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6. Uncrustifyͱͷൺֱ
   clang-format Uncrustify
   Πϯετʔϧ × େม ˕ ௒؆୯
   ઃఆ߲໨ ˚ ͬ͘͟Γ ○ ࡉ͔͍
   ߦࢦఆ ˕ Ͱ͖Δ × Ͱ͖ͳ͍ʢͨͿΜʣ
   ެࣜ౓ ˕ clangͦͷ·· -
   

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7. ΫοΫύουͰ͸clang-formatΛ࠾༻
   • ͲͪΒ΋ࡉ͔͘ઃఆͨ͠ͱ͜ΖͰ100%ࢥ͍௨Γ
   ʹ͸ͳΒͳ͍ʢͲΜ͙Γͷഎൺ΂ʣ
   • clangͷtoolͰ͋Δͱ͍͏҆৺ײ
   • ಛఆͷߦ͚ͩͷϑΥʔϚοτ͕Ͱ͖Δ
   

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8. Πϯετʔϧ
   •http://blog.hardcodes.de/articles/63/building-
   clang-format-and-friends-on-osx-mountain-lion
   •ͱʹ͔͘makeʹ͕͔͔࣌ؒΓ·͢
   

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9. Xcodeͳਓ͸
   • ClangFormat-Xcode ͱ͍͏plugin͕࢖͑·͢
   https://github.com/travisjeffery/ClangFormat-Xcode
   

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10. Vimͳਓ͸
    • vim-clang-format ͱ͍͏plugin͕࢖͑·͢
    https://github.com/rhysd/vim-clang-format
    •prefixΩʔΛࣗ༝ʹઃఆͰ͖ΔͷͰVimͷඪ४ͷ
    ϑΥʔϚοτ༻Ωʔʮ=ʯͰϑΥʔϚοτ΋Մೳ
    •ʮ==ʯͰݱࡏߦ͚ͩϑΥʔϚοτͱ͔ɺϏϡ
    δϡΞϧϞʔυͰબ୒ͨ͠ߦ͚ͩʮ=ʯͰϑΥʔ
    Ϛοτͱ͔
    

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11. γϯλοΫενΣοΫ
    

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12. clang-check
    $ clang-check hello.m --
    !
    hello.m:12:5: error: unknown type name 'MSString'; did you mean
    'NSString'?
    MSString *string1 = nil;
    ^~~~~~~~
    NSString
    /System/Library/Frameworks/Foundation.framework/Headers/
    NSXPCConnection.h:13:29: note: 'NSString' declared here
    @class NSMutableDictionary, NSString, NSOperationQueue, NSSet, …;
    ^
    1 error generated.
    Error while processing /Users/ytokoro/develop/objc/hello.m.
    

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13. XcodeͷϓϩδΣΫτ಺ͷϑΝΠϧͷ৔߹…
    $ clang -x objective-c -arch i386 -fmessage-length=0 -fdiagnostics-
    show-note-include-stack -fmacro-backtrace-limit=0 -std=gnu99 -fobjc-arc
    -fmodules -fmodules-cache-path=/Users/ytokoro/Library/Developer/Xcode/
    DerivedData/ModuleCache -Wno-trigraphs -fpascal-strings -O0 -Wno-
    missing-field-initializers -Wno-missing-prototypes -Werror=return-type
    -Wno-implicit-atomic-properties -Werror=deprecated-objc-isa-usage -
    Werror=objc-root-class -Wno-receiver-is-weak -Wno-arc-repeated-use-of-
    weak -Wduplicate-method-match -Wno-missing-braces -Wparentheses -
    Wswitch -Wunused-function -Wno-unused-label -Wno-unused-parameter -
    Wunused-variable -Wunused-value -Wempty-body -Wuninitialized -Wno-
    unknown-pragmas -Wno-shadow -Wno-four-char-constants -Wno-conversion -
    Wconstant-conversion -Wint-conversion -Wbool-conversion -Wenum-
    conversion -Wno-shorten-64-to-32 -Wpointer-sign -Wno-newline-eof -Wno-
    selector -Wno-strict-selector-match -Wundeclared-selector -Wno-
    deprecated-implementations -DDEBUG=1 -isysroot /Applications/Xcode.app/
    Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/
    iPhoneSimulator7.0.sdk -fexceptions -fasm-blocks -fstrict-aliasing -
    Wprotocol -Wdeprecated-declarations -g -Wno-sign-conversion -fobjc-abi-
    version=2 -fobjc-legacy-dispatch -mios-simulator-version-min=7.0 -
    iquote /Users/ytokoro/Library/Developer/Xcode/DerivedData/
    

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14. XcodeͷϓϩδΣΫτ಺ͷϑΝΠϧͷ৔߹…
    •ݱ࣮తͳܗͰclang-checkʹ౉͢ΦϓγϣϯΛಋ
    ग़͢Δज़͕·ͩΘ͔͍ͬͯͳ͍
    •clang-check࢖͍͍ͨͷʹͩΕ͔ϔϧϓʂ
    

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15. clang-check͕͏·͘࢖͑ΔΑ͏ʹͳͬͨΒ
    •Vim΍EmacsͰ΋XcodeόϦͷγϯλοΫε
    νΣοΫ/੩తղੳ͕؆୯ʹͰ͖ΔΑ͏ʹͳΔ
    •ίʔυΛॻ͍͍ͯΔ࠷தʹඇಉظʹγϯλοΫ
    ενΣοΫͯ͠هड़ϛεΛഁઢͰ໌ࣔͱ͔
    • Vimͳਓ͸ vim-watchdogs ͱ͍͏plugin͔Βݺͼ
    ग़͢ͱ͍͍͔Μ͡ʹͳΓͦ͏
    https://github.com/osyo-manga/vim-watchdogs
    

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16. ࠓ͸ xcodebuild Ͱ୅༻͍ͯ͠·͢
    

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17. ݱࡏͷ΅͘ͷνΣοΫ؀ڥ
    •vim-watchdogs ܦ༝Ͱ xcodebuild Λఆظతʹୟ
    ͍ͯɺίϯύΠϧΤϥʔ͕͋Ε͹Τϥʔ಺༰Λ
    QuickFixͰදࣔ
    • .vimrc ͷઃఆ͸͜ͷ͋ͨΓ
    https://github.com/tokorom/dotfiles/blob/
    master/.vimrc#L592-L604
    

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18. More Information
    Yuta ToKoRo!
    iOS App Programer!
    @tokorom!
    !
    http://www.tokoro.me/
    

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