Goのソースコードから読み解くオブジェクト指向プログラミング@Object-Oriented Conference 2020

Dd54ef589676aa4bf9e09d72c61bb80e?s=47 arakawa
February 11, 2020
Programming
4
510

Goのソースコードから読み解くオブジェクト指向プログラミング@Object-Oriented Conference 2020

Dd54ef589676aa4bf9e09d72c61bb80e?s=128

arakawa

February 11, 2020
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Transcript

  1. 1.

    0CKFDU0SJFOUFE$POGFSFODF !͓஡ͷਫঁࢠେֶڞ (Pͷιʔείʔυ͔ΒಡΈղ͘ ΦϒδΣΫτࢦ޲ϓϩάϥϛϯά BETIPMPLP BETIPMPLP

  2. 2.

    ࣗݾ঺հ 4IPHP"SBLBXB J04&OHJOFFS !4BOTBO BETIPMPLP BETIPMPLP

  3. 3.

    ࠓ೔࿩͢͜ͱ w (Pͷιʔείʔυͷઃܭ͔ΒΦϒδΣΫτࢦ޲ͷΤοηϯεΛֶ΅͏ w ΦϒδΣΫτࢦ޲ͷҰ୺Ͱ͋ΔσβΠϯύλʔϯʹ͍ͭͯ࿩͠·͢ ϘτϜΞοϓͰΦϒδΣΫτࢦ޲ͷਅ਷ΛֶͿ

  4. 4.

    (Pʹ͍ͭͯ w (PPHMF͕։ൃͨ͠ݴޠ w ೥݄ʹॳϦϦʔε w 3PC1JLFɺ,FO5PNQTPOʢݩ6/*9 ։ൃऀʣΒ͕ॳظઃܭͨ͠੩తܕ෇͚ݴޠ w ͭ·Γ6/*9ͷΤοηϯε͕٧·͍ͬͯΔ

  5. 5.

    ͦ΋ͦ΋ʜ (P͸ΦϒδΣΫτࢦ޲ݴޠ͔ʁ

  6. 6.

    (P͸ΦϒδΣΫτࢦ޲ݴޠʁ https://golang.org/doc/faq

  7. 7.

    (P͸ΦϒδΣΫτࢦ޲ݴޠʁ https://golang.org/doc/faq

  8. 8.

    l:FTBOEOP"MUIPVHI(PIBTUZQFTBOENFUIPETBOE BMMPXTBOPCKFDUPSJFOUFETUZMFPGQSPHSBNNJOH UIFSF JTOPUZQFIJFSBSDIZ5IFDPODFQUPGlJOUFSGBDFzJO(P QSPWJEFTBEJGGFSFOUBQQSPBDIUIBUXFCFMJFWFJTFBTZ UPVTFBOEJOTPNFXBZTNPSFHFOFSBM5IFSFBSFBMTP XBZTUPFNCFEUZQFTJOPUIFSUZQFTUPQSPWJEF TPNFUIJOHBOBMPHPVTŠCVUOPUJEFOUJDBMŠUP TVCDMBTTJOH.PSFPWFS NFUIPETJO(PBSFNPSF

    HFOFSBMUIBOJO$ PS+BWBz *T(PBOPCKFDUPSJFOUFEMBOHVBHF
  9. 9.

    l:FTBOEOP"MUIPVHI(PIBTUZQFTBOENFUIPETBOE BMMPXTBOPCKFDUPSJFOUFETUZMFPGQSPHSBNNJOH UIFSF JTOPUZQFIJFSBSDIZ5IFDPODFQUPGlJOUFSGBDFzJO(P QSPWJEFTBEJGGFSFOUBQQSPBDIUIBUXFCFMJFWFJTFBTZ UPVTFBOEJOTPNFXBZTNPSFHFOFSBM5IFSFBSFBMTP XBZTUPFNCFEUZQFTJOPUIFSUZQFTUPQSPWJEF TPNFUIJOHBOBMPHPVTŠCVUOPUJEFOUJDBMŠUP TVCDMBTTJOH.PSFPWFS NFUIPETJO(PBSFNPSF

    HFOFSBMUIBOJO$ PS+BWBz *T(PBOPCKFDUPSJFOUFEMBOHVBHF
  10. 10.

    w ಡΈࠐΈॲཧΛಁաతʹѻ͏ͨΊͷ3FBEFSʢඪ४ϥΠϒϥϦΑΓʣ w ໦૸ࠪΛݡ͘ಁաతʹѻ͏ͨΊͷ7JTJUPSʢݴޠॲཧܥΑΓʣ ࠓճ঺հ͢Δύλʔϯ

  11. 11.

    w ಡΈࠐΈॲཧΛಁաతʹѻ͏ͨΊͷ3FBEFSʢඪ४ϥΠϒϥϦΑΓʣ w ໦૸ࠪΛݡ͘ಁաతʹѻ͏ͨΊͷ7JTJUPSʢݴޠॲཧܥΑΓʣ ࠓճ঺հ͢Δύλʔϯ

  12. 12.

    JP3FBEFSΠϯλʔϑΣʔε

  13. 13.

    JP3FBEFSΠϯλʔϑΣʔε Ҿ਺ ໭Γ஋

  14. 14.

    ྫϑΝΠϧಡΈࠐΈͷྫ

  15. 15.

    3FBEFSΠϯλʔϑΣʔε ଞʹ΋ͨ͘͞Μ͋ΔΑʂ JOUFSGBDF JP3FBEFS 3FBE Q<>CZUF  OJOU FSSFSSPS CVpP3FBEFS

    3FBE Q<>CZUF  OJOU FSSFSSPS PT'JMF 3FBE Q<>CZUF  OJOU FSSFSSPS OFU*1$POO 3FBE Q<>CZUF  OJOU FSSFSSPS
  16. 16.

    ϑΝΠϧ͔ΒಡΈࠐΈΛ࣮ݱ͢Δ3FBEFS 3FBEFSΠϯλʔϑΣʔε JOUFSGBDF JP3FBEFS 3FBE Q<>CZUF  OJOU FSSFSSPS CVpP3FBEFS

    3FBE Q<>CZUF  OJOU FSSFSSPS PT'JMF 3FBE Q<>CZUF  OJOU FSSFSSPS OFU*1$POO 3FBE Q<>CZUF  OJOU FSSFSSPS
  17. 17.

    3FBEFSΠϯλʔϑΣʔε JOUFSGBDF JP3FBEFS 3FBE Q<>CZUF  OJOU FSSFSSPS CVpP3FBEFS 3FBE

    Q<>CZUF  OJOU FSSFSSPS PT'JMF 3FBE Q<>CZUF  OJOU FSSFSSPS OFU*1$POO 3FBE Q<>CZUF  OJOU FSSFSSPS όοϑΝ͔ΒಡΈࠐΈΛ࣮ݱ͢Δ3FBEFS
  18. 18.

    3FBEFSΠϯλʔϑΣʔε *1ίωΫγϣϯ͔ΒಡΈࠐΈΛ࣮ݱ͢Δ3FBEFS JOUFSGBDF JP3FBEFS 3FBE Q<>CZUF  OJOU FSSFSSPS CVpP3FBEFS

    3FBE Q<>CZUF  OJOU FSSFSSPS PT'JMF 3FBE Q<>CZUF  OJOU FSSFSSPS OFU*1$POO 3FBE Q<>CZUF  OJOU FSSFSSPS
  19. 19.

    3FBEFSΠϯλʔϑΣʔε JOUFSGBDF JP3FBEFS 3FBE Q<>CZUF  OJOU FSSFSSPS CVpP3FBEFS 3FBE

    Q<>CZUF  OJOU FSSFSSPS PT'JMF 3FBE Q<>CZUF  OJOU FSSFSSPS OFU*1$POO 3FBE Q<>CZUF  OJOU FSSFSSPS ʮYYY͔ΒಡΈࠐΉʯ͜ͱ͕ڞ௨͍ͯ͠Δ
  20. 20.

    ྫόοϑΝϦϯά͋ΓϑΝΠϧಡΈࠐΈ ˞্ه͸JPVUJM3FBE'JMFͱ͍͏ศརϝιουͰ΋୅ସՄೳ ʢόοϑΝ֬อͷαΠζ͸ҟͳΔʣ

  21. 21.

    3FBEFSΛ૊Έ߹ΘͤΔ CVpP3FBEFS JOUFSGBDF JP3FBEFS JOUFSGBDF JP3FBEFS PT'JMF

  22. 22.

    ୯७Խ͢Δͱʜ JOUFSGBDF JP3FBEFS CVpP3FBEFS PT'JMF CVpP3FBEFS͕JP3FBEFSΛϥοϓͰ͖Δߏ଄

  23. 23.

    w JP3FBEFSΛϑΟʔϧυʹ࣋ͭ w ϑΟʔϧυʹ୅ೖ͞Ε͍ͯΔ۩৅Ϋ ϥεʹ͸Ұ੾ؔ༩͠ͳ͍ CVpPHP CVpP3FBEFS

  24. 24.

    ϑΝΠϧʹͯ͠΋ 3FBEFS͑͞ܧঝ͍ͯ͠Ε͹ ԿͰ΋ࠩ͠ସ͑ΒΕΔ CVpP3FBEFS JOUFSGBDF JP3FBEFS JOUFSGBDF JP3FBEFS PT'JMF

  25. 25.

    ίωΫγϣϯʹͯ͠΋ 3FBEFS͑͞ܧঝ͍ͯ͠Ε͹ ԿͰ΋ࠩ͠ସ͑ΒΕΔ CVpP3FBEFS JOUFSGBDF JP3FBEFS JOUFSGBDF JP3FBEFS OFU*1$POO

  26. 26.

    ࣗ࡞3FBEFSʹͯ͠΋ 3FBEFS͑͞ܧঝ͍ͯ͠Ε͹ ԿͰ΋ࠩ͠ସ͑ΒΕΔ CVpP3FBEFS JOUFSGBDF JP3FBEFS JOUFSGBDF JP3FBEFS ࣗ࡞3FBEFS

  27. 27.

    "UPVSPG(P305

  28. 28.

    JP3FBEFSͷԿ͕خ͍͔͠ʁ w ݺͼग़͠ݩ͔Β͢Ε͹ಡΈग़͠ݩͷιʔεΛҰ੾ҙࣝͤͣʹ͢Ή w JP3FBEFSʹ४ڌ͢Δͱಁաతʹ༷ʑͳػೳΛ֦ு͢Δ͜ͱ͕ग़དྷΔ w FH όοϑΝ͋Γ ϑΝΠϧιέοτ૊Έ߹Θͤ͸ແݶେʂ ˞(P'ͷσβΠϯύλʔϯͰݴ͑͹$PNQPTJUF4UBSBUFHZύλʔϯʹ͍͔ۙ΋

  29. 29.

    w ಡΈࠐΈॲཧΛಁաతʹѻ͏ͨΊͷ3FBEFSʢඪ४ϥΠϒϥϦΑΓʣ w ໦૸ࠪΛݡ͘ಁաతʹѻ͏ͨΊͷ7JTJUPSʢݴޠॲཧܥΑΓʣ ࠓճ঺հ͢Δύλʔϯ

  30. 30.

    ίϯύΠϥͷಈ͖ ιʔείʔυ ࣈ۟ղੳ ߏจղੳ ҙຯղੳ ࠷దԽ ࣮ߦϑΝΠϧग़ྗ ˞࣮ࡍ͸΋͏গ͠ෳࡶͰ͢

  31. 31.

    ίϯύΠϥͷಈ͖ ̑    ιʔείʔυ ࣈ۟ղੳ ߏจղੳ ҙຯղੳ ࠷దԽ

    ࣮ߦϑΝΠϧग़ྗ <̑      >
  32. 32.

    ίϯύΠϥͷಈ͖ ιʔείʔυ ࣈ۟ղੳ ߏจղੳ ҙຯղੳ ࠷దԽ ࣮ߦϑΝΠϧग़ྗ <̑  

        >    ˎ
  33. 33.

    ίϯύΠϥͷಈ͖ ιʔείʔυ ࣈ۟ղੳ ߏจղੳ ҙຯղੳ ࠷దԽ ࣮ߦϑΝΠϧग़ྗ   

    ˎ ׂѪ
  34. 34.

    ໦ߏ଄Λ८ճ͍ͨ͠    ˎ ໦Λ͍͍ײ͡ʹ८ճͭͭ͠ɺͦͷϊʔυʹैͬͨॲཧΛ͍ͨ͠

  35. 35.

    ໦ߏ଄Λ८ճ͍ͨ͠ w 7JTJUPS͸໦Λ८ճ͢Δ w /PEF͸֤અ఺Λදݱ͢Δ w &YQS͸/PEFΛ֦ுͨ͠Πϯ λʔϑΣʔε BTUXBMLHP BTUBTUHP

  36. 36.

    /PEFͷछྨͨͪ   ˎ  /PEF

  37. 37.

    /PEFͷछྨͨͪ   ˎ  &YQS

  38. 38.

    /PEFͷछྨͨͪ JOUFSGBDF /PEF JOUFSGBDF &YQS JOUFSGBDF %FDM #BTJD-JU FH ੔਺Ϧςϥϧ

    #JOBSZ&YQS FH ೋ߲ԋࢉࢠ *EFOU FH ม਺ ʜ JOUFSGBDF 4UNU
  39. 39.

    /PEFͷछྨͨͪ   ˎ  #JOBSZ&YQS #BTJD-JU

  40. 40.

    #BTJD-JU

  41. 41.

    #JOBSZ&YQS

  42. 42.

    ८ճ 8BML ͷಈ͖    ˎ 7JTJUPS

  43. 43.

    ८ճ 8BML ͷಈ͖    ˎ 7JTJUPS

  44. 44.

    ८ճ 8BML ͷಈ͖    ˎ 7JTJUPS

  45. 45.

    ८ճ 8BML ͷಈ͖    ˎ 7JTJUPS 9 :

  46. 46.

    ८ճ 8BML ͷಈ͖    ˎ 7JTJUPS 9 :

  47. 47.

    ८ճ 8BML ͷಈ͖    ˎ 7JTJUPS

  48. 48.

    ८ճ 8BML ͷಈ͖    ˎ 7JTJUPS 9 :

  49. 49.

    ८ճ 8BML ͷಈ͖    ˎ 7JTJUPS

  50. 50.

    ८ճ 8BML ͷಈ͖    ˎ 7JTJUPS 9 :

  51. 51.

    ८ճ 8BML ͷಈ͖    ˎ 7JTJUPS

  52. 52.

    Կ͕خ͍͠ͷ͔ʁ w ८ճͱ๚໰࣌ͷϊʔυૢ࡞ͷ੹຿ͷ෼཭͕Ͱ͖Δ͜ͱ w ८ճ͸Ͳͷछྨͷϊʔυ͔ʹ͸ؔ༩ͤͣಁաతͳΞΫηε͕Ͱ͖Δ w ֤ϊʔυ͝ͱʹઐ༻ͷॲཧΛॻ͘ͷͰίʔυͷݟ௨͕͠ྑ͍ w ϊʔυૢ࡞ʢ7JTJUʣΛϢʔβ͕֦ு͢Δ͜ͱ͕Ͱ͖Δ ˞(P'ͷσβΠϯύλʔϯͰݴ͑͹7JTJUPSύλʔϯʹ͍͕ۙɺ׬શʹҰக͍ͯ͠ΔΘ͚Ͱ͸ͳ͍

  53. 53.

    ࠓճ঺հͨ͠ύλʔϯ w ಡΈࠐΈॲཧΛಁաతʹѻ͏ͨΊͷ3FBEFSʢඪ४ϥΠϒϥϦΑΓʣ w ໦૸ࠪΛݡ͘ಁաతʹѻ͏ͨΊͷ7JTJUPSʢݴޠॲཧܥΑΓʣ

  54. 54.

    Ͳ͕͜ΦϒδΣΫτࢦ޲ͩͬͨͷ͔ʁ

  55. 55.

    w ಡΈࠐΈॲཧΛಁաతʹѻ͏ͨΊͷ3FBEFSʢඪ४ϥΠϒϥϦΑΓʣ w ໦૸ࠪΛݡ͘ಁաతʹѻ͏ͨΊͷ7JTJUPSʢݴޠॲཧܥΑΓʣ Ͳ͕͜ΦϒδΣΫτࢦ޲ͩͬͨͷ͔ʁ ݺͼग़͠ݩ͔Βৄࡉͷ࣮૷Λҙࣝ͠ͳ͍ ৄࡉ͸ͦͷੑ࣭͝ͱʹಈ࡞͢Δ

  56. 56.

    Ͳ͕͜ΦϒδΣΫτࢦ޲ͩͬͨͷ͔ʁ w ಡΈࠐΈॲཧΛಁաతʹѻ͏ͨΊͷ3FBEFSʢඪ४ϥΠϒϥϦΑΓʣ w ໦૸ࠪΛݡ͘ಁաతʹѻ͏ͨΊͷ7JTJUPSʢݴޠॲཧܥΑΓʣ ΧϓηϧԽ ϙϦϞʔϑΟζϜ

  57. 57.

    ࠷ޙʹ lจ໌ͷਐา͸ɺਓ͕ҙࣝͤͣʹ਱ߦՄೳͳ ॏཁԋࢉͷ਺త֦େʹΑΓ΋ͨΒ͞ΕΔz "MGSFE/PSUI8IJUFIFBEʢ਺ֶऀʣ 

  58. 58.

    ຊࢿྉ͸TQFBLFSEFDLʹͯެ։ࡁΈͰ͢ BETIPMPLP BETIPMPLP 5IBOLZPV