Go Language Server 使うべし

Go(Un)Conference（Goあんこ）LT大会 5kg

Transcript

1. (P
   -BOHVBHF
   4FSWFS
   ࢖͏΂͠
   (P 6O
   $POGFSFODFʢ(P͋Μ͜ʣ-5େձLH
   !MJHIUUJHFS
   

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2. -BOHVBHF4FSWFS 1SPUPDPM
   
   ͳʹʁͳͥ
   
   

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3. -BOHVBHF4FSWFS
   ݴޠ։ൃπʔϧΛ౷߹ͨ͠αʔό
   w ࣗಈิ׬
   w ఆٛδϟϯϓ
   w ࢀরݕࡧFUD
   -BOHVBHF4FSWFS1SPUPDPM -41
   
   -BOHVBHF4FSWFSͱΫϥΠΞϯτؒͰ࢖༻͢Δϓϩτίϧ
   w .JDSPTPGU͕࢓༷ࡦఆ 74$PEFͷͨΊʁ
   
   w +40/31$ϕʔε
   -BOHVBHF4FSWFSͱ͸ͳʹ͔
   

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4. ͜Ε·Ͱ͸ΤσΟλຖʹݴޠπʔϧΛར༻͢ΔϓϥάΠϯ͕ඞཁͩͬͨ
   w 74$PEFͷ1ZUIPOϓϥάΠϯ
   w "UPNͷ1ZUIPOϓϥάΠϯ
   w 7JNͷ1ZUIPOϓϥάΠϯ
   w 4VCMJNF5FYU &NBDT 4PVSDFHSBQIFUD
   ݴޠίϛϡχςΟͷ։ൃϦιʔεΛ-BOHVBHF
   4FSWFSʹूதͯ͠ߴ඼࣭ͳݴޠ։ൃπʔϧΛ࡞Δ
   Ϣʔβ͸-41ΛαϙʔτΫϥΠΞϯτΛಋೖͯ͠
   ͙͢ʹߴ඼࣭ͳݴޠͷαϙʔτΛڗडͰ͖Δ
   ͋ͱͰৄ͘͠࿩͠·͢
   -BOHVBHF4FSWFS͸ͳͥඞཁ͔
   

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5. (Pͷ-BOHVBHF4FSWFS
   
   

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6. ݱঢ়ɺൃల͕ظ଴͞Ε͍ͯΔ(Pͷ-BOHVBHF4FSWFS͸ҎԼͷͭ
   HPQMT
   w (Pެࣜͷ-BOVHBHF4FSWFS
   CJOHP
   w TPVSDFHSBQIHPMBOHTFSWFSΠϯεύΠϠͷ
   αʔυύʔςΟ-BOHVBHF4FSWFS
   

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7. .FUIPE ػೳ (P5PPMT
   textDocument/completion ࣗಈิ׬ gocode*
   textDocument/definition ఆٛδϟϯϓ godef*
   textDocument/formatting ϑΥʔϚοτ gofmt
   textDocument/hover ώϯτදࣔ gogetdoc*
   textDocument/implementation ܧঝؔ܎ impl
   textDocument/rename ໊લมߋ gorename*
   textDocument/references γϯϘϧࢀরݕࡧ guru
   textDocument/documentSymbol υΩϡϝϯτγϯϘϧݕࡧ guru
   workspace/symbol ϫʔΫεϖʔεγϯϘϧݕࡧ guru
   -41ͱ(Pݴޠ։ൃπʔϧ
   * αʔυύʔςΟ੡πʔϧ
   

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8. .FUIPE HPQMT CJOHP
   textDocument/completion ○ ○
   textDocument/definition ○ ○
   textDocument/formatting ○ ○
   textDocument/hover ○ ○
   textDocument/implementation - ○
   textDocument/rename - ○
   textDocument/references - ○
   textDocument/documentSymbol - ○
   workspace/symbol - ○
   HPQMTͱCJOHPͷൺֱ
   2019/01/28࣌఺Ͱ֤ServerͷCapabilitiesΛऔಘͨ݁͠Ռ
   

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9. ͳ͍ͥ·
   -BOHVBHF4FSWFSͳͷ͔
   
   

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10. ಡΜͰ͍ͩ͘͞
    (P"EWFOU$BMFOEBS೔໨
    ʰHPDPEF΍Ί·͢ ͦͯ͠-BOHVBHF4FSWFS΁
    ʱ
    IUUQTNBUUOLBPSJZBOFUTPGUXBSFMBOHHPIUN
    

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11. ࢖ͬͯΘ͔ͬͨ
    -BOHVBHF4FSWFSͷԸܙ
    
    

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12. ͔͜͜Β൒෼
    ͘Β͍7JNͷ࿩
    8BSOJOH
    

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13. -BOHVBHF4FSWFSಋೖ
    #FGPSF"GUFS
    
    

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14. #FGPSF"GUFS
    

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15. KFEJ
    HPDPEF
    BVUPQFQ
    qBLF
    JTPSU
    ZBSQ
    CMBDL
    HPEFG
    JNQM
    JNQM
    HVSV
    HPMJOU
    7JN
    ϦϯλʔϑΥʔϚολ
    ϓϥάΠϯ
    "-&
    
    ࣗಈิ׬
    EFPQMFUF
    
    (PݴޠπʔϧϓϥάΠϯ
    WJNHP
    
    1ZUIPOݴޠπʔϧϓϥάΠϯ
    KFEJWJN
    
    1ZUIPOิ׬
    EFPQMFUFKFEJ
    
    (Pิ׬
    EFPQMFUFHP
    
    

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16. KFEJ
    HPDPEF
    BVUPQFQ
    qBLF
    JTPSU
    ZBSQ
    CMBDL
    HPEFG
    JNQM
    JNQM
    HVSV
    HPMJOU
    ϦϯλʔϑΥʔϚολ
    ϓϥάΠϯ
    "-&
    
    ࣗಈิ׬
    EFPQMFUF
    
    (PݴޠπʔϧϓϥάΠϯ
    WJNHP
    
    1ZUIPOݴޠπʔϧϓϥάΠϯ
    KFEJWJN
    
    1ZUIPOิ׬
    EFPQMFUFKFEJ
    
    (Pิ׬
    EFPQMFUFHP
    
    7JN
    ΤσΟλ
    

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17. KFEJ
    HPDPEF
    BVUPQFQ
    qBLF
    JTPSU
    ZBSQ
    CMBDL
    HPEFG
    JNQM
    JNQM
    HVSV
    HPMJOU
    7JN
    ϦϯλʔϑΥʔϚολ
    ϓϥάΠϯ
    "-&
    
    ࣗಈิ׬
    EFPQMFUF
    
    (PݴޠπʔϧϓϥάΠϯ
    WJNHP
    
    1ZUIPOݴޠπʔϧϓϥάΠϯ
    KFEJWJN
    
    1ZUIPOิ׬
    EFPQMFUFKFEJ
    
    (Pิ׬
    EFPQMFUFHP
    
    ΤσΟλϓϥάΠϯ
    

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18. 7JN
    ϦϯλʔϑΥʔϚολ
    ϓϥάΠϯ
    "-&
    
    ࣗಈิ׬
    EFPQMFUF
    
    (PݴޠπʔϧϓϥάΠϯ
    WJNHP
    
    1ZUIPOݴޠπʔϧϓϥάΠϯ
    KFEJWJN
    
    1ZUIPOิ׬
    EFPQMFUFKFEJ
    
    (Pิ׬
    EFPQMFUFHP
    
    KFEJ
    HPDPEF
    BVUPQFQ
    qBLF
    JTPSU
    ZBSQ
    CMBDL
    HPEFG
    JNQM
    HVSV
    HPMJOU
    ݴޠ։ൃπʔϧ
    

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19. #FGPSF"GUFS
    

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20. ࣗಈิ׬
    (deoplete)
    LSPิ׬
    (deoplete-
    vim-lsp)
    QZMT
    HPQMTCJOHP
    Language
    Server
    Client
    (vim-lsp)
    7JN
    -41
    

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21. ࣗಈิ׬
    (deoplete)
    LSPิ׬
    (deoplete-
    vim-lsp)
    QZMT
    HPQMTCJOHP
    7JN
    Language
    Server
    Client
    (vim-lsp)
    -41
    -BOHVBHF4FSWFS$MJFOU
    

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22. ࣗಈิ׬
    (deoplete)
    LSPิ׬
    (deoplete-
    vim-lsp)
    7JN
    Language
    Server
    Client
    (vim-lsp)
    QZMT
    HPQMTCJOHP
    -41
    -BOHVBHF4FSWFS
    

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23. ͲΜͳਓʹͲΜͳԸܙ͕
    ͋Δ͔ ໝ૝
    
    
    

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24. -41͸ίϛϡχςΟͷ։ൃϦιʔεΛΑΓޮ཰తʹ
    ӡ༻͢ΔͨΊͷϑϨʔϜϫʔΫ
    ͍ΖΜͳཱ৔ͷਓʹԸܙ͕͋Δ
    w ΤσΟλϓϥάΠϯ։ൃऀ
    w ݴޠπʔϧ։ൃऀ
    w ΤσΟλϢʔβ
    

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25. ΤσΟλϓϥάΠϯ։ൃऀ
    
    

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26. #FGPSF"GUFS
    

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27. KFEJ
    HPDPEF
    BVUPQFQ
    qBLF
    JTPSU
    ZBSQ
    CMBDL
    HPEFG
    JNQM
    JNQM
    HVSV
    HPMJOU
    ϦϯλʔϑΥʔϚολ
    ϓϥάΠϯ
    "-&
    
    ࣗಈิ׬
    EFPQMFUF
    
    (PݴޠπʔϧϓϥάΠϯ
    WJNHP
    
    1ZUIPOݴޠπʔϧϓϥάΠϯ
    KFEJWJN
    
    1ZUIPOิ׬
    EFPQMFUFKFEJ
    
    (Pิ׬
    EFPQMFUFHP
    
    7JN
    ຊདྷ΍Γ͍ͨ͜ͱ
    ड͚औͬͨ݁ՌΛͲ͏දࣔ͢Ε͹ΑΓ
    Ϣʔβ͕ศརʹͳΔ͔
    

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28. KFEJ
    HPDPEF
    BVUPQFQ
    qBLF
    JTPSU
    ZBSQ
    CMBDL
    HPEFG
    JNQM
    JNQM
    HVSV
    HPMJOU
    ϦϯλʔϑΥʔϚολ
    ϓϥάΠϯ
    "-&
    
    ࣗಈิ׬
    EFPQMFUF
    
    (PݴޠπʔϧϓϥάΠϯ
    WJNHP
    
    1ZUIPOݴޠπʔϧϓϥάΠϯ
    KFEJWJN
    
    1ZUIPOิ׬
    EFPQMFUFKFEJ
    
    (Pิ׬
    EFPQMFUFHP
    
    ࢓ํ͕ͳ͘΍Δ͜ͱ
    ݴޠ։ൃπʔϧ͝ͱʹ࣮૷͕ඞཁ
    w ݺͼग़͠ํ๏ Φϓγϣϯͷҧ͍
    
    w ݁Ռͷύʔε ग़ྗϑΥʔϚοτҧ͍
    
    πʔϧ͕ҧ͑͹࢖͍ํ΋ҧ͏
    

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29. #FGPSF"GUFS
    

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30. ࣗಈิ׬
    (deoplete)
    LSPิ׬
    (deoplete-
    vim-lsp)
    QZMT
    HPQMTCJOHP
    7JN
    Language
    Server
    Client
    (vim-lsp)
    -41
    ͪ͜ΒʹूதͰ͖Δ
    มΘͬͨ͜ͱ
    -41Ͱ࢓༷͕౷Ұ͞Ε͍ͯΔ͔Β
    -BOHVBHF4FSWFSΛม͑ͯ΋ݸผରԠඞཁφγ
    

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31. Ϧιʔεͷूத
    (PݴޠπʔϧϓϥάΠϯ
    WJNHP
    
    1ZUIPOݴޠπʔϧϓϥάΠϯ
    KFEJWJN
    
    Language
    Server
    Client
    (vim-lsp)
    7JNTDSJQU(P
    7JNTDSJQU1ZUIPO
    

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32. (PݴޠπʔϧϓϥάΠϯ
    WJNHP
    
    1ZUIPOݴޠπʔϧϓϥάΠϯ
    KFEJWJN
    
    Language
    Server
    Client
    (vim-lsp)
    7JNTDSJQU0OMZ
    Ϧιʔεͷूத
    

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33. ݴޠπʔϧ։ൃऀ
    
    

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34. #FGPSF"GUFS
    

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35. 7JN
    ϦϯλʔϑΥʔϚολ
    ϓϥάΠϯ
    "-&
    
    ࣗಈิ׬
    EFPQMFUF
    
    (PݴޠπʔϧϓϥάΠϯ
    WJNHP
    
    1ZUIPOݴޠπʔϧϓϥάΠϯ
    KFEJWJN
    
    1ZUIPOิ׬
    EFPQMFUFKFEJ
    
    (Pิ׬
    EFPQMFUFHP
    
    KFEJ
    HPDPEF
    BVUPQFQ
    qBLF
    JTPSU
    ZBSQ
    CMBDL
    HPEFG
    JNQM
    JNQM
    HVSV
    HPMJOU
    ຊདྷ΍Γ͍ͨ͜ͱ
    ਖ਼֬Ͱߴ଎ͳϨεϙϯεͨΊʹ
    ΧϦΧϦͷνϡʔχϯά
    

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36. 7JN
    ϦϯλʔϑΥʔϚολ
    ϓϥάΠϯ
    "-&
    
    ࣗಈิ׬
    EFPQMFUF
    
    (PݴޠπʔϧϓϥάΠϯ
    WJNHP
    
    1ZUIPOݴޠπʔϧϓϥάΠϯ
    KFEJWJN
    
    1ZUIPOิ׬
    EFPQMFUFKFEJ
    
    (Pิ׬
    EFPQMFUFHP
    
    KFEJ
    HPDPEF
    BVUPQFQ
    qBLF
    JTPSU
    ZBSQ
    CMBDL
    HPEFG
    JNQM
    JNQM
    HVSV
    HPMJOU
    ࢓ํ͕ͳ͘΍Δ͜ͱ
    ΤσΟλຖͷݸผରԠ
    w ΤσΟλ͕ड͚औΓՄೳͳग़ྗ
    w ड͚औΓқ͍ܗࣜ΁ͷύʔε
    

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37. #FGPSF"GUFS
    

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38. ࣗಈิ׬
    (deoplete)
    LSPิ׬
    (deoplete-
    vim-lsp)
    7JN
    Language
    Server
    Client
    (vim-lsp)
    QZMT
    HPQMTCJOHP
    -41
    ΤσΟλຖͷࠩ෼Λؾʹ͢Δඞཁ͸ͳ͍
    ͦͯ͠-41ʹ͸ੑೳʹد༩͢Δ
    ϢʔςΟϦςΟతͳ.FUIPE΋ଘࡏ͠ɺ
    ੑೳ޲্ʹΑΓྗΛׂ͚Δ
    มΘͬͨ͜ͱ
    

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39. ΤσΟλϢʔβ
    
    

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40. #FGPSF"GUFS
    

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41. 7JN
    ຊདྷ΍Γ͍ͨ͜ͱ
    ίʔυΛॻ͘͜ͱ
    WJNSD͸ؚ·ͳ͍
    
    $PEF
    

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42. KFEJ
    HPDPEF
    BVUPQFQ
    qBLF
    JTPSU
    ZBSQ
    CMBDL
    HPEFG
    JNQM
    JNQM
    HVSV
    HPMJOU
    ϦϯλʔϑΥʔϚολ
    ϓϥάΠϯ
    "-&
    
    ࣗಈิ׬
    EFPQMFUF
    
    (PݴޠπʔϧϓϥάΠϯ
    WJNHP
    
    1ZUIPOݴޠπʔϧϓϥάΠϯ
    KFEJWJN
    
    1ZUIPOิ׬
    EFPQMFUFKFEJ
    
    (Pิ׬
    EFPQMFUFHP
    
    ࢓ํ͕ͳ͘΍Δ͜ͱ ָ͍͠
    
    ݴޠϓϥάΠϯຖͷઃఆ
    w දࣔಈ࡞Φϓγϣϯ
    w ίϚϯυͷΩʔόΠϯυ
    

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43. 7JN
    ϦϯλʔϑΥʔϚολ
    ϓϥάΠϯ
    "-&
    
    ࣗಈิ׬
    EFPQMFUF
    
    (PݴޠπʔϧϓϥάΠϯ
    WJNHP
    
    1ZUIPOݴޠπʔϧϓϥάΠϯ
    KFEJWJN
    
    1ZUIPOิ׬
    EFPQMFUFKFEJ
    
    (Pิ׬
    EFPQMFUFHP
    
    KFEJ
    HPDPEF
    BVUPQFQ
    qBLF
    JTPSU
    ZBSQ
    CMBDL
    HPEFG
    JNQM
    JNQM
    HVSV
    HPMJOU
    ࢓ํ͕ͳ͘΍Δ͜ͱ ָ͍͠
    
    ݸผͷίϚϯυͷΠϯετʔϧ
    w Ϧϯλʔ
    w ϑΥʔϚολʔ
    w ࣗಈิ׬
    w ͦͷଞ੩తղੳ
    

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44. #FGPSF"GUFS
    

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45. ࣗಈิ׬
    (deoplete)
    LSPิ׬
    (deoplete-
    vim-lsp)
    QZMT
    HPQMTCJOHP
    7JN
    Language
    Server
    Client
    (vim-lsp)
    -41
    มΘͬͨ͜ͱ
    ͲͷݴޠͰ΋-BOHVBHF4FSWFS$MJFOUͰର
    ԠͰ͖Δ
    w ΠϯετʔϧηοτΞοϓͷলྗԽ
    w ݴޠຖͷݸผઃఆͷ౷Ұ
    

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46. ࣗಈิ׬
    (deoplete)
    LSPิ׬
    (deoplete-
    vim-lsp)
    7JN
    Language
    Server
    Client
    (vim-lsp)
    QZMT
    HPQMTCJOHP
    -41
    มΘͬͨ͜ͱ
    ݴޠ։ൃπʔϧͷ౷߹
    w ΠϯετʔϧηοτΞοϓͷলྗԽ
    ݴޠίϛϡχςΟ։ൃϦιʔεूதʹΑΔ
    ੑೳ޲্
    w ߴ඼࣭ͳݴޠ։ൃػೳͷڗड
    

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47. 7JN
    ॻ͚Δʜίʔυ͕ॻ͚Δͧ
    $PEF
    มΘͬͨ͜ͱ
    

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48. એ఻
    
    

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49. ࣗಈิ׬
    (deoplete)
    LSPิ׬
    (deoplete-
    vim-lsp)
    QZMT
    HPQMTCJOHP
    Language
    Server
    Client
    (vim-lsp)
    7JN
    -41
    

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50. ࣗಈิ׬
    (deoplete)
    QZMT
    HPQMTCJOHP
    Language
    Server
    Client
    (vim-lsp)
    7JN
    -41
    LSPิ׬
    (deoplete-
    vim-lsp)
    

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51. View Slide

52. ·ͱΊ
    
    

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53. (P
    -BOHVBHF
    4FSWFS
    ࢖͏΂͠
    

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