普段iOS書いてるつもりなのでgomobileを取り上げてみる

ීஈJ04ॻ͍ͯΔͭ΋ΓͳͷͰ HPNPCJMFΛऔΓ্͛ͯΈΔ "J[VHP

ࣗݾ঺հ OBNF4IPNB4BJUP MJLFTXJGU USPNCPOF UXJUUFS!UBOUBLBO@  JOHSFTTUBOUBLBO XPSLJO&ZFT +"1"/

໨࣍ ᶃ HPNPCJMFͱ͸ ᶄ HPNPCJMFCVJMEΛݟͯΈΔ ᶅ HPNPCJMFCJOEΛݟͯΈΔ ᶆ 'SBNFXPSLΛ࡞ͬͯΈΔ ᶇ
ߟ͑ͯΈΔ

HPNPCJMFͱ͸ʁ

HPNPCJMFͱ͸ʁ (PݴޠͰϞόΠϧΞϓϦ͕࡞ΕΔπʔϧ

HPNPCJMFͱ͸ʁ (PݴޠͰϞόΠϧΞϓϦ͕࡞ΕΔπʔϧ /BUJWF 4%, (PݴޠͷΈͰΞϓϦΛॻ͘ (PݴޠͰϥΠϒϥϦΛॻ͘

HPNPCJMFͱ͸ʁ ͋·Γ։ൃ͞Εͯͳ͍ʜʁ

HPNPCJMFͱ͸ʁ ͋·Γ։ൃ͞Εͯͳ͍ʜʁ ɾJ04Ҏ߱ͷهࣄ͕શ͘ग़ͯ͜ͳ͍ ɾ9DPEFҎ߱ͷهࣄ͕શ͘ग़ͯ͜ͳ͍ ɾ9DPEFपΓͷόά͕์ஔ͞Ε͍ͯΔ

HPNPCJMFͱ͸ʁ ͳΜ͔ωλʹग़དྷͦ͏

HPNPCJMFCVJMEΛݟͯΈΔ HPMBOHPSHYNPCJMFFYBNQMFCBTJD ͱΓ͋͑ͣαϯϓϧΞϓϦͷத਎ݟͯΈΑ͏

HPNPCJMFCVJMEΛݟͯΈΔ ͱΓ͋͑ͣαϯϓϧΞϓϦͷத਎ݟͯΈΑ͏ HPMBOHPSHYNPCJMFFYBNQMFCBTJD

HPNPCJMFCVJMEΛݟͯΈΔ ͱΓ͋͑ͣαϯϓϧΞϓϦͷத਎ݟͯΈΑ͏ Կͩ͜Εˠ HPMBOHPSHYNPCJMFFYBNQMFCBTJD

HPNPCJMFCVJMEΛݟͯΈΔ GVODNBJO \ BQQ.BJO GVOD BBQQ"QQ \
WBSHMDUYHM$POUFYU WBST[TJ[F&WFOU GPSFSBOHFB&WFOUT \ TXJUDIFB'JMUFS F UZQF \ DBTFMJGFDZDMF&WFOU TXJUDIF$SPTTFT MJGFDZDMF4UBHF7JTJCMF \ DBTFMJGFDZDMF$SPTT0O HMDUY @F%SBX$POUFYU HM$POUFYU PO4UBSU HMDUY B4FOE QBJOU&WFOU\^ DBTFMJGFDZDMF$SPTT0GG PO4UPQ HMDUY HMDUYOJM ^

HPNPCJMFCVJMEΛݟͯΈΔ GVODNBJO \ BQQ.BJO GVOD BBQQ"QQ \
WBSHMDUYHM$POUFYU WBST[TJ[F&WFOU GPSFSBOHFB&WFOUT \ TXJUDIFB'JMUFS F UZQF \ DBTFMJGFDZDMF&WFOU TXJUDIF$SPTTFT MJGFDZDMF4UBHF7JTJCMF \ DBTFMJGFDZDMF$SPTT0O HMDUY @F%SBX$POUFYU HM$POUFYU PO4UBSU HMDUY B4FOE QBJOU&WFOU\^ DBTFMJGFDZDMF$SPTT0GG PO4UPQ HMDUY HMDUYOJM ^ Ϛδ͔ʜˠ

HPNPCJMFCVJMEΛݟͯΈΔ package main import ( "encoding/binary" "log" "golang.org/x/mobile/app" "golang.org/x/mobile/event/lifecycle" "golang.org/x/mobile/event/paint"
"golang.org/x/mobile/event/size" "golang.org/x/mobile/event/touch" "golang.org/x/mobile/exp/app/debug" "golang.org/x/mobile/exp/f32" "golang.org/x/mobile/exp/gl/glutil" "golang.org/x/mobile/gl" ) ˡTIJOZͰ͸ͳ͍ͬΆ͍ ˡϥΠϑαΠΫϧΛ࢘ͬͯΔ ˡλοϓΠϕϯτΛ࢘ͬͯΔ

HPNPCJMFCVJMEΛݟͯΈΔ 6* 0QFO(-Ͱ4IBEFSͳͲΰϦΰϦ͢Δ εϓϥΠτΤϯδϯͳΔ΋ͷΛ࢖͏ HPMBOHPSHYNPCJMFFYBNQMFCBTJD HPMBOHPSHYNPCJMFFYBNQMFqBQQZ

HPNPCJMFCVJMEΛݟͯΈΔ 6* 0QFO(-Ͱ4IBEFSͳͲΰϦΰϦ͢Δ εϓϥΠτΤϯδϯͳΔ΋ͷΛ࢖͏ HPMBOHPSHYNPCJMFFYBNQMFCBTJD HPMBOHPSHYNPCJMFFYBNQMFqBQQZ ਏͦ͏ʜ࢖͍ͨ͘ͳ͍ʜ

HPNPCJMFCVJMEΛݟͯΈΔ λοϓΠϕϯτ func main() { app.Main(func(a app.App) { for e
:= range a.Events() { switch e := a.Filter(e).(type) { case touch.Event: // ͜͜ʹॲཧॻͬ͘Ά͍ } } }) }

HPNPCJMFCVJMEΛݟͯΈΔ λοϓΠϕϯτ func main() { app.Main(func(a app.App) { for e
:= range a.Events() { switch e := a.Filter(e).(type) { case touch.Event: // ͜͜ʹॲཧॻͬ͘Ά͍ } } }) } ਏͦ͏ʜ࢖͍ͨ͘ͳ͍ʜ

HPNPCJMFCVJMEΛݟͯΈΔ ·ͱΊΔͱʜ ͳΜ͔ϞόΠϧॻ͍ͯΔؾ෼ʹ΋ɺ(PMBOHॻ͍ͯΔؾ෼ʹ΋ͳΒͳ͍ʜ  ͜Εຊ౰ʹ࢖ͬͯΔਓ͍ΔΜ͔ͳʜʁ

HPNPCJMFCVJMEΛݟͯΈΔ ଞͷ͸Ͳ͏ͳΜͩΖ͏ʁ

HPNPCJMFCJOEΛݟͯΈΔ ͱΓ͋͑ͣαϯϓϧΞϓϦͷத਎ݟͯΈΑ͏ HPMBOHPSHYNPCJMFFYBNQMFCJOE

HPNPCJMFCJOEΛݟͯΈΔ ͱΓ͋͑ͣαϯϓϧΞϓϦͷத਎ݟͯΈΑ͏ HPMBOHPSHYNPCJMFFYBNQMFCJOE package hello import "fmt" func Greetings(name string)
string { return fmt.Sprintf("Hello, %s!", name) }

HPNPCJMFCJOEΛݟͯΈΔ ͜ΕΛHPNPCJMFCJOEͰ J04༻ͷGSBNFXPSLͱͯ͠ॻ͖ग़ͤΔͬΆ͍ package hello import "fmt" func Greetings(name string)
string { return fmt.Sprintf("Hello, %s!", name) }

HPNPCJMFCJOEΛݟͯΈΔ ؔ਺ΛҾ਺ʹ͢Δؔ਺͸CJOEରԠͯ͠ͳ͍ ͬΆ͍

HPNPCJMFCJOEΛݟͯΈΔ 4JHOFEJOUFHFSBOEqPBUJOHQPJOUUZQFT 4USJOHBOECPPMFBOUZQFT #ZUFTMJDFUZQFT/PUFUIBUCZUFTMJDFTBSFQBTTFECZSFGFSFODF BOETVQQPSUNVUBUJPO "OZGVODUJPOUZQFBMMPGXIPTFQBSBNFUFSTBOESFTVMUTIBWF TVQQPSUFEUZQFT'VODUJPOTNVTUSFUVSOFJUIFSOPSFTVMUT POFSFTVMU
PSUXPSFTVMUTXIFSFUIFUZQFPGUIFTFDPOEJT UIFCVJMUJOFSSPSUZQF "OZJOUFSGBDFUZQF BMMPGXIPTFFYQPSUFENFUIPETIBWF TVQQPSUFEGVODUJPOUZQFT "OZTUSVDUUZQF BMMPGXIPTFFYQPSUFENFUIPETIBWF TVQQPSUFEGVODUJPOUZQFTBOEBMMPGXIPTFFYQPSUFEpFMET IBWFTVQQPSUFEUZQFT ରԠͯ͠Δ΋ͷ

HPNPCJMFCJOEΛݟͯΈΔ ରԠͯ͠Δ΋ͷ 4JHOFEJOUFHFSBOEqPBUJOHQPJOUUZQFT 4USJOHBOECPPMFBOUZQFT #ZUFTMJDFUZQFT/PUFUIBUCZUFTMJDFTBSFQBTTFECZSFGFSFODF BOETVQQPSUNVUBUJPO "OZGVODUJPOUZQFBMMPGXIPTFQBSBNFUFSTBOESFTVMUTIBWF TVQQPSUFEUZQFT'VODUJPOTNVTUSFUVSOFJUIFSOPSFTVMUT
POFSFTVMU PSUXPSFTVMUTXIFSFUIFUZQFPGUIFTFDPOEJT UIFCVJMUJOFSSPSUZQF "OZJOUFSGBDFUZQF BMMPGXIPTFFYQPSUFENFUIPETIBWF TVQQPSUFEGVODUJPOUZQFT "OZTUSVDUUZQF BMMPGXIPTFFYQPSUFENFUIPETIBWF TVQQPSUFEGVODUJPOUZQFTBOEBMMPGXIPTFFYQPSUFEpFMET IBWFTVQQPSUFEUZQFT جຊతʹ͸࢖͑ΔͬΆ͍

HPNPCJMFCJOEΛݟͯΈΔ ࣮ࡍʹ9DPEFͰ͍ͬͯ͡ΈΔ

HPNPCJMFCJOEΛݟͯΈΔ ᶃ HPNPCJMFCJOEUBSHFUJPT ᶄ 9DPEFͷϓϩδΣΫτʹ%SBHBOE%SPQ

HPNPCJMFCJOEΛݟͯΈΔ package hello import "fmt" func Greetings(name string) string {
return fmt.Sprintf("Hello, %s!", name) }

return fmt.Sprintf("Hello, %s!", name) } import Hello HelloGreetings("test")

return fmt.Sprintf("Hello, %s!", name) } import Hello HelloGreetings("test") QLH໊ GVOD໊ ͍ͬͯ͏ؔ਺͕ग़དྷΔ

HPNPCJMFCJOEΛݟͯΈΔ ͜͜Ͱ'SBNFXPSL࡞ͬͯΈΑ͏ͱࢥͬͨ

'SBNFXPSLΛ࡞ͬͯΈΔ ൺֱ͢ΔͨΊʹʜ

'SBNFXPSLΛ࡞ͬͯΈΔ ൺֱ͢ΔͨΊʹʜ ϑΟϘφον਺ྻΛٻΊΔ͚ͩͷ'SBNFXPSL

'SBNFXPSLΛ࡞ͬͯΈΔ (PMBOH func Fibonacci(n int64) int64 { if n <=
2 { return 1 } return Fibonacci(n-1) + Fibonacci(n-2) }

'SBNFXPSLΛ࡞ͬͯΈΔ 4XJGU public func fibonacci(n: Int64) -> Int64 { if
n <= 2 { return 1 } return fibonacci(n: n-1) + fibonacci(n: n-2) }

'SBNFXPSLΛ࡞ͬͯΈΔ let fibnum = Int64(37) print("swift") let swiftstart = Date()
for i in 1...30 { let x = fibonacci(n: fibnum) print(i, x) } let swiftelapsed = Date().timeIntervalSince(swiftstart) print("golang") let gostart = Date() for i in 1...30 { let x = HelloFibonacci(fibnum) print(i, x) } let goelapsed = Date().timeIntervalSince(gostart) print("swift: ", swiftelapsed) print("golang:", goelapsed) ͜Μͳײ͡Ͱܭଌͯ͠Έͨ

'SBNFXPSLΛ࡞ͬͯΈΔ ݁Ռʜ TXJGU HPMBOH

ߟ͑ͯΈΔ ͦ΋ͦ΋ɺ4XJGUͷ'SBNFXPSLͷ ݺͼग़͕͠஗͍ͷͰ͸ʁ

ݺͼग़͕͠஗͍ʁ print("swift") let swiftstart = Date() for _ in 1...100000
{ emptyFunc() } let swiftelapsed = Date().timeIntervalSince(swiftstart) print("golang") let gostart = Date() for _ in 1...100000 { HelloEmptyFunc() } let goelapsed = Date().timeIntervalSince(gostart) print("swift: ", swiftelapsed) print("golang:", goelapsed) ߟ͑ͯΈΔ

TXJGU HPMBOH ݺͼग़͕͠஗͍ʁ ߟ͑ͯΈΔ ˞'SBNFXPSLͷಋೖํ๏ʹΑͬͯݺͼग़͠ͷ଎౓͕มΘΔ͜ͱ͕͋Γ·͢

TXJGU HPMBOH ݺͼग़͕͠஗͍ʁ 4XJGUΊͬͪΌ଎͍΍Μ͚ ߟ͑ͯΈΔ ˞'SBNFXPSLͷಋೖํ๏ʹΑͬͯݺͼग़͠ͷ଎౓͕มΘΔ͜ͱ͕͋Γ·͢

4XJGU͔Β(PMBOHͷؔ਺Λສճݺͼग़͢ ߟ͑ͯΈΔ

4XJGU͔Β(PMBOHͷؔ਺Λສճݺͼग़͢ ߟ͑ͯΈΔ (PMBOHͷؔ਺಺Ͱສճ܁Γฦ͢

·ͱΊ

CVJMEΑΓCJOEͷํ͕·ͩ࢖͍ͦ͏  'SBNFXPSLͷಋೖखॱͷෑډͷߴ͕͋͞Δ  (PMBOH΍ͬͺ଎͍ ·ͱΊ

·ͱΊ ͋Γ͕ͱ͏͍͟͝·ͨ͠ʂ

普段iOS書いてるつもりなのでgomobileを取り上げてみる

普段iOS書いてるつもりなのでgomobileを取り上げてみる

More Decks by Shoma Saito

Other Decks in Programming

Featured

Transcript