go generate と go/ast のざっくりとした話

go generateとgo/astの話をざっくりとします。

Transcript

1. HP
   HFOFSBUF"45΀5*14 .BTBTIJ
   4BMWBEPS
   .JUTV[BXB
   !
   FVSFLB
2. BCPVU
   8IP
   *
   BN .BTBTIJ
   4BMWBEPS
   .JUTV[BXB
   UXJUUFS
   
   !.BTBTIJ4BMWBEPS
   4FSWFS
   TJEF
   FOHJOFFS
   !
   QBJST
   EJWJTJPO ܦྺ
   
   ݄%F/"
   ೖࣾ
   
   ݄
   Τ΢ϨΧೖࣾ
   1)1
   
   (P
   %BUB
   .JHSBUJPO
   
   
   
   QSPEVDU։ൃ ޷͖ͳݴޠ
   3VCZ
   (PMBOH
   +BWBTDSJQU
   )BTLFMM ݩʑͷઐ໳
   ܭࢉ࿦తਆܦՊֶʢ೴ͷۭؒهԱʹؔ͢Δ਺ཧϞσϧͷݚڀʣ
   ػցֶशʢಛʹڧԽֶशʣ झຯ
   ஡ಓ
   
   ࣗసं
   
   Ξ΢τυΞ
   
   όοΫύοΧʔ
 ΧϨʔ৯͏ͨΊʹੜ͖ͯΔ
3. (P΀ṽ͟ͼᖃ 
   4JNQMJDJUZ EPU(P
   
   
   3PC
   1JLF
   
   4JNQMJDJUZ
   JT
   $PNQMJDBUFE 5IF
   TUBUF
   PG
   (P
4. HP
   HFOFSBUF 
   HP͝ΛႳ᥍ 5IF
   HP
   DPNNBOE
   IBT
   B
   OFX
   TVCDPNNBOE
   HP
   HFOFSBUF
   
   UP
   BVUPNBUF
   UIF
   SVOOJOH
   PG
   UPPMT
   UP
   HFOFSBUF
   TPVSDF
   DPEF
   CFGPSF
   DPNQJMBUJPO
 θϸϖΩϰ᧸ͽς⑲ξθ⑲ώΤᓺᕧͫΝͱΓ΀ω⑲ϰ΀࣮ḝΤᥦხặͫΝ -FU
   UIF
   NBDIJOF
   EP
   UIF
   XPSL
   3PC
   1JLF
   (FOFSBUJOH
   DPEF
   5IF
   (P
   #MPH 
   3FMFBTF
   /PUFΚΜ (P΀ς⑲ξθ⑲ώ΀θϦϸύͽ 
   ᑿ͖ፖ Τᔉ͟
5. 4USJOHFS΀ᆚď໋ᙚϛϲεΚΜĐ 
   ᨷ਺ᨷᤅ የᥙᅾ͹ᶡᙎͩͱ͖ ͥΞΤბႷᗌ͹ᔉ͡΀΁ͶΛ͖ 
   TUSJOHFSθϣϸώ͹ᥦხᓺᕧͫΝ
6. 4USJOHFS΀ᆚď໋ᙚϛϲεΚΜĐ 
   QJMMHP QJMM@TUSJOHHP ᥦხᓺᕧͧΞͱθ⑲ώĐ 
   ᥦხᓺᕧ΁͖͖͞ 5IFSFT
   OP
   RVFTUJPO
   UIF
   HFOFSBUFE
   NFUIPE
   JT
   VHMZ
   
   5IBUT
   0,
   UIPVHI
   CFDBVTF
   IVNBOT
   EPOU
   OFFE
   UP
   XPSL
   PO
   JU
   3PC
   1JLF
   (FOFSBUJOH
   DPEF
   5IF
   (P
   #MPH  ຖỹTUSJOHFSθϣϸώΤຒ͡Ħ.BLFGJMFᄑͽ᪝ΑࠐΒĦ  ᨷ਺ᨷᤅϚΦΩϰ͞૿͚ͱΛ
7. 4USJOHFS΀ᆚď໋ᙚϛϲεΚΜĐ 
   QJMMHP
   XJUI
   HPHFOFSBUF 
   -FUT
   HP
   HFOFSBUF
8. HP
   HFOFSBUFͺᷯΡͭ͸ᑿ͚Νθ⑲ώᓺᕧω⑲ϰ 
   DMJQQFSIPVTFHFO 
   NPOPDISPNFHBOFBSHFO ཋ᪦ମͽ"DUJWF3FDPSEϮΩδͼϦςψώΤᓺᕧ 
   ODXHPUFNQMBUF ᬥᨷͩͱUFNQMBUF 4FU
   )FBQ
   ಠᥦᨷᤅ൱ĐͽᷯΡͭ͸θ⑲ώΤᓺᕧ 
   QRVFSOBGGKTPO ᴢᓝΚΜᖩ͖.BSTIBM+40/
   
   6ONBSTIBM+40/
   Τᓺᕧ
9. ͯ΀᳔Κ͔͡Νᑿᠭ᎚ 
   NPDL΀ᓺᕧ 
   WFLUSBNPDLFSZ 
   HPMBOHNPDL 
   +40/ᄑϚΨ⑲ϰώτε΀ᓺᕧ 
   GBWDMJQKXH 
   XJUI
   HPCJOEBUB
10. FVSFLB͹΀ሆᠭᆚ 
    ᧸ᘥ΀HPCJOEBUB 
    SPVUJOH΀ᕓᨷϚΦΩϰ͝Λς⑲ξθ⑲ώ΀ᓺᕧ 
    TFSWJDF
    
    GBDBEF
    
    XPSLFSᄑᥦხᓺᕧͩ͸͖ΝϯϢνύϯΔ 
    ό⑲τมỐᠭ΀ΧϜϯζ⑲μϬϸ 
    ϲνψδĤᤫ΀ᗌ͞ᶶ᠓ͼᐙᐠͲ࣮ͣ૷ͫΝ !.BTBTIJ4BMWBEPS෪ᤫͺͩ͸ 
    YP͹%#͝ΛᬿᨭϧόϰΤᓺᕧ
11. FVSFLB͹΀ሆᠭᆚ 
    ᧸ᘥ΀HPCJOEBUB 
    SPVUJOH΀ᕓᨷϚΦΩϰ͝Λς⑲ξθ⑲ώ΀ᓺᕧ 
    TFSWJDF
    
    GBDBEF
    
    XPSLFSᄑᥦხᓺᕧͩ͸͖ΝϯϢνύϯΔ 
    ό⑲τมỐᠭ΀ΧϜϯζ⑲μϬϸ 
    ϲνψδĤᤫ΀ᗌ͞ᶶ᠓ͼᐙᐠͲ࣮ͣ૷ͫΝ !.BTBTIJ4BMWBEPS෪ᤫͺͩ͸ 
    YP͹%#͝ΛᬿᨭϧόϰΤᓺᕧ
12. ͥͥ͝Λ"45΀ề
13. HFOFSBUF͹ᑿ͘උ᪽θϣϸώ͵͸ͻ͘ხ͖͸ΝΥͲĦͺ͖͘ᤃዧ 
    ᆚ͚΂+40/΀ϚΨ⑲ϰώτεᓺᕧ 
    --᧣ͼൃᓡ ͹ͺΜ͔͚ͬᩆྥᶡḿ͹៬ᦐΝ 
    ǹ 
    ͶΛ͖ 
    උ᪽θϣϸώ΀ς⑲ξΤಡΒͺ"45Τᑿ͵͸͖ΝΛ͖ͩ 
    "45 ᱢᓯཋየኴ  θϸϖΩϮ͞࿖͘ϜϲεϮϥ΀ᬊණᶡḿ  ďͼͻϜϲεϮϥ΀᣾ዳͽؔ๹΀ͼ͖ဒ߸΁ᕭᅊͧΞΝ  ϜϲεϮϥ
    ª
    TDBOOFS
    ª
    5PLFO΀ᅾ
    ª
    QBSTFS
    ª
    "45  ᶝ᫿ϮΩϛϮϯ
    HPBTU
    HPQBSTFS
    HPUPLFO᪰͞᦬ͩ͸͖Ν
14. HPBTU
    HPQBSTFS
    HPUPLFO΀ᑿ͖ፖ 
    ཋየኴ᳼ᓷᠭ΀ؔ਺  *OTQFDU 
    TXJUDIΔͩ͡΁ṞΧκ⑲μϬϸ͹኷᧣΀ϓ⑲ώΤᄌΝ  8BML  ຾͵ͱΛ1SJOUຉ΀ؔ਺͹ኴᥦମΤ฼Ν  1SJOU  'QSJOU
15. ᆚ
16. ͯ΀᳔BTUΤᑿ͵͸͹͟Νͥͺ  ੩᧣ḑᔡ  ᘊỖᏝࡶႷ΀ຌᒿ IUUQRJJUBDPNLOTIJUFNTGEGCFDDB  FYQPSUͧΞ͸͖Ν͞ዹᑿᠭ΀ม਺΀ݕᬰ  KHBVUIFSPOVTFEFYQPSUT  Ჩͺͩ͸᪞ΜጿͧΞ͸͖Ν਺ᥙΖየᥙᅾ΀ݕᲇ
17. ΐͺΓ  HP
    HFOFSBUF  ཋ᪦ମ΀ቤΓࠐΑΤᑿ͘ͺͥΟͺᫍΑᐠͣͶͶ͘ΐ͡ᑿ͘ͺŸ  ჯͪΚ͘ͼᶡဒ΀෶ᖃ΁UFNQMBUFͽᄢͺͩ͸ᥦხᓺᕧ͹͟ΝͺŸ  WT
    SFGMFDU  ϖϚή⑲ϣϸξďᖩႷĐ᧣ͽዧ᩼͞ပͥΜΖ͖ͫ  ࣮ḝᙉͽQBOJD᧣ͼͥͺͽͼΜΖ͖ͫ  JOUFSGBDF\^Ṟᙼ͖  HPBTU  ᣾៷ͺඦ୯  BOOPUBUJPOΤ᳼ͫ
    
    ϚΨ⑲ϰώτεΤḑᔡͫΝᄑ΁ᷡΜͺၛᲝ͖  ၛᲝ͖͞Θ͚ͽಡΓΝ
    
    ᔉͣΝ  SFBEBCJMJUZ
    JT
    UIF
    NPTU
    JNQPSUBOU
    GFBUVSF
    PG
    QSPHSBNNJOH
    MBOHVBHF
18. UIBOLT