Go Language Server 使うべし

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

-BOHVBHF4FSWFS 1SPUPDPM ͳʹʁͳͥ

-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

͜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

(Pͷ-BOHVBHF4FSWFS

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

.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

.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

ͳ͍ͥ· -BOHVBHF4FSWFSͳͷ͔

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

࢖ͬͯΘ͔ͬͨ -BOHVBHF4FSWFSͷԸܙ

͔͜͜Β൒෼ ͘Β͍7JNͷ࿩ 8BSOJOH

-BOHVBHF4FSWFSಋೖ #FGPSF"GUFS

#FGPSF"GUFS

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

HVSV HPMJOU ϦϯλʔϑΥʔϚολ ϓϥάΠϯ "-& ࣗಈิ׬ EFPQMFUF (PݴޠπʔϧϓϥάΠϯ WJNHP 1ZUIPOݴޠπʔϧϓϥάΠϯ KFEJWJN 1ZUIPOิ׬ EFPQMFUFKFEJ (Pิ׬ EFPQMFUFHP 7JN ΤσΟλ

HVSV HPMJOU 7JN ϦϯλʔϑΥʔϚολ ϓϥάΠϯ "-& ࣗಈิ׬ EFPQMFUF (PݴޠπʔϧϓϥάΠϯ WJNHP 1ZUIPOݴޠπʔϧϓϥάΠϯ KFEJWJN 1ZUIPOิ׬ EFPQMFUFKFEJ (Pิ׬ EFPQMFUFHP ΤσΟλϓϥάΠϯ

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

#FGPSF"GUFS

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

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

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

ͲΜͳਓʹͲΜͳԸܙ͕ ͋Δ͔ ໝ૝

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

ΤσΟλϓϥάΠϯ։ൃऀ

#FGPSF"GUFS

HVSV HPMJOU ϦϯλʔϑΥʔϚολ ϓϥάΠϯ "-& ࣗಈิ׬ EFPQMFUF (PݴޠπʔϧϓϥάΠϯ WJNHP 1ZUIPOݴޠπʔϧϓϥάΠϯ KFEJWJN 1ZUIPOิ׬ EFPQMFUFKFEJ (Pิ׬ EFPQMFUFHP 7JN ຊདྷ΍Γ͍ͨ͜ͱ ड͚औͬͨ݁ՌΛͲ͏දࣔ͢Ε͹ΑΓ Ϣʔβ͕ศརʹͳΔ͔

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

#FGPSF"GUFS

Client (vim-lsp) -41 ͪ͜ΒʹूதͰ͖Δ มΘͬͨ͜ͱ -41Ͱ࢓༷͕౷Ұ͞Ε͍ͯΔ͔Β -BOHVBHF4FSWFSΛม͑ͯ΋ݸผରԠඞཁφγ

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

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

ݴޠπʔϧ։ൃऀ

#FGPSF"GUFS

1ZUIPOิ׬ EFPQMFUFKFEJ (Pิ׬ EFPQMFUFHP KFEJ HPDPEF BVUPQFQ qBLF JTPSU ZBSQ CMBDL HPEFG JNQM JNQM HVSV HPMJOU ຊདྷ΍Γ͍ͨ͜ͱ ਖ਼֬Ͱߴ଎ͳϨεϙϯεͨΊʹ ΧϦΧϦͷνϡʔχϯά

1ZUIPOิ׬ EFPQMFUFKFEJ (Pิ׬ EFPQMFUFHP KFEJ HPDPEF BVUPQFQ qBLF JTPSU ZBSQ CMBDL HPEFG JNQM JNQM HVSV HPMJOU ࢓ํ͕ͳ͘΍Δ͜ͱ ΤσΟλຖͷݸผରԠ w ΤσΟλ͕ड͚औΓՄೳͳग़ྗ w ड͚औΓқ͍ܗࣜ΁ͷύʔε

#FGPSF"GUFS

QZMT HPQMTCJOHP -41 ΤσΟλຖͷࠩ෼Λؾʹ͢Δඞཁ͸ͳ͍ ͦͯ͠-41ʹ͸ੑೳʹد༩͢Δ ϢʔςΟϦςΟతͳ.FUIPE΋ଘࡏ͠ɺ ੑೳ޲্ʹΑΓྗΛׂ͚Δ มΘͬͨ͜ͱ

ΤσΟλϢʔβ

#FGPSF"GUFS

7JN ຊདྷ΍Γ͍ͨ͜ͱ ίʔυΛॻ͘͜ͱ WJNSD͸ؚ·ͳ͍ $PEF

HVSV HPMJOU ϦϯλʔϑΥʔϚολ ϓϥάΠϯ "-& ࣗಈิ׬ EFPQMFUF (PݴޠπʔϧϓϥάΠϯ WJNHP 1ZUIPOݴޠπʔϧϓϥάΠϯ KFEJWJN 1ZUIPOิ׬ EFPQMFUFKFEJ (Pิ׬ EFPQMFUFHP ࢓ํ͕ͳ͘΍Δ͜ͱ ָ͍͠ ݴޠϓϥάΠϯຖͷઃఆ w දࣔಈ࡞Φϓγϣϯ w ίϚϯυͷΩʔόΠϯυ

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

#FGPSF"GUFS

Client (vim-lsp) -41 มΘͬͨ͜ͱ ͲͷݴޠͰ΋-BOHVBHF4FSWFS$MJFOUͰର ԠͰ͖Δ w ΠϯετʔϧηοτΞοϓͷলྗԽ w ݴޠຖͷݸผઃఆͷ౷Ұ

QZMT HPQMTCJOHP -41 มΘͬͨ͜ͱ ݴޠ։ൃπʔϧͷ౷߹ w ΠϯετʔϧηοτΞοϓͷলྗԽ ݴޠίϛϡχςΟ։ൃϦιʔεूதʹΑΔ ੑೳ޲্ w ߴ඼࣭ͳݴޠ։ൃػೳͷڗड

7JN ॻ͚Δʜίʔυ͕ॻ͚Δͧ $PEF มΘͬͨ͜ͱ

એ఻

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

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

·ͱΊ

(P -BOHVBHF 4FSWFS ࢖͏΂͠

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