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Swiftは最高だよの話
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野瀬田 裕樹
May 29, 2025
Technology
2
370
Swiftは最高だよの話
Swift宣伝資料です
野瀬田 裕樹
May 29, 2025
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Transcript
4XJGU࠷ߴͩΑͷ ΞϓϦ։ൃࣨɹాɹ༟थ
Ͱ
ͳΔ͘ଟ͘
4XJGUͷ
ྑ͍ͱ͜ΖΛ
͑·͢ʂ
ྫ֎ॲཧ͕࠷ߴ
4XJGUݕࠪྫ֎Λ࠾༻
4XJGUͷྫ֎ͷجຊϧʔϧ
// ϧʔϧ1ɿΤϥʔͷൃੜՄೳੑ͕͋Δؔఆٛඞͣthrows͕ඞཁ func main() throws {
// ϧʔϧ2ɿthrowsͷؔݺͼग़͠ඞͣtry͕ඞཁ try sample()
// ϧʔϧ3ɿthrowsؔthrows͔ؔdo-catchͷΈݺग़Մ func main1() throws { try sample() } func
main2() { do { try sample() } catch {} }
͜Ε͚ͩ
Ͱੌ͘ྑ͍
3FTVMUΑΓྑ͍ͷʁ
ྑ͍Ͱ͢
ΤϥʔͱฦΓͷϖΞΑΓʁ
ྑ͍Ͱ͢
ৄࡉলུ
ܰ͘৮ΕΔͱ
ΤϥʔϋϯυϦϯά͕ڧ੍
ΤϥʔϋϯυϦϯά͕ڧ੍ ݕࠪྫ֎ͳͷͰ
ΤϥʔͷิՕॴ͕໌֬
ΤϥʔͷิՕॴ͕໌֬ USZඞਢͳͷͰ
ෳͷࣜͷ߹͕؆୯
ෳͷࣜͷ߹͕؆୯ USZB USZC USZD CͱDͷUSZলུՄ
Τϥʔͷແࢹ͕؆୯
Τϥʔͷແࢹ͕؆୯ @USZ B
ͳͲ
৭Μͳར͕͋ΔΑ
ˣͷهࣄ͕ৄ͍͠Α 4XJGUͷΤϥʔϋϯυϦϯά ͳͥ࠷ઌͳͷ͔
ܕத৺Ͱ࠷ߴ
$MBTTͬͯਏ͍ΑͶ
Մมঢ়ଶ͕؆୯ʹڞ༗͞ΕΔ
class A { var x: Int = 0 } var
a1 = A() var a2 = a1 a1.x = 1 print(a2.x) // ग़ྗɿ1(a1ͱa2ͰՄมͳঢ়ଶ͕ڞ༗)
4XJGUͳΒ͏҆৺
ޚతίϐʔʁ
ΠϛϡʔλϒϧΫϥεʁ
͍Γ·ͤΜ
struct A { var x: Int = 0 } var
a1 = A() var a2 = a1 a1.x = 1 print(a2.x) // ग़ྗɿ0(a1ͱa2Ͱڞ༗͞Εͳ͍)
ྑ͍ײ͡Ͱ͢Ͷ
ܕ
ΠϛϡʔλϒϧΫϥεͱಉ͡ ҆શੑ
ϛϡʔλϒϧΫϥεͱಉ͡ มߋ༰қੑ
4XJGUͳΒ
ίϨΫγϣϯܕ
ܕΛѻ͏๛ͳݴޠ༷
࠷ߴ
ˣͷهࣄ͕ৄ͍͠Α )FBSUPG4XJGU
ඇಉظॲཧ͕࠷ߴ
BTZODBXBJU
"TZOD4USFBN
શ෦ඪ४Ͱ͋ΔΑ
ඇಉظॲཧͷେ
σʔλڝ߹
҆৺ͯ͠
҆શ͡Όͳ͍ίʔυ
4XJGUͳΒ
ίϯύΠϧΤϥʔʹͳΔΑ
4FOEBCMF͋Δ͠
"DUPSΊͬͪΌศརͩΑ
๛ͳݴޠػೳ
UZQFEUIPSXTʁ
͋Γ·͢
ॴ༗ݖʁआ༻ʁ
͋Γ·͢
/PODPQZBCMFʁ
͋Γ·͢
ͳΜͰେମ͋ΔΑʂ
ϚϧνϓϥοτϑΥʔϜ
J04͔͠Ͱ͖ͳ͍ʁ
ͦΜͳ͜ͱ͋Γ·ͤΜ
αʔόʔ ʢ࣮গͳ͍͚Ͳʣ
8FC ʢ੩తαΠτͳΒͶʜʣ
"OESPJE ʢ4LJQͷࠓޙʹظʣ
ΈࠐΈ ʢ&NCFEEFE4XJGU͋ΔΑʣ
ͪΖΜ
7JTJPO04
.BD04
ͳΜͰͰ͖ΔΑ
·ͱΊ
4XJGUJT࠷ߴ w ྫ֎ॲཧ͕࠷ߴʢΤϥʔϋϯυϦϯάڧ੍ɺ໌֬ͳهड़ɺFUDʣ w ܕத৺͕࠷ߴʢ҆શੑͱมߋ༰қੑͷཱ྆ʣ w ඇಉظॲཧ͕࠷ߴʢσʔλڝ߹ճආɺهड़͕༰қɺFUDʣ w ๛ͳݴޠػೳ͕࠷ߴʢੑೳٻͰ͖Δ҆͠શੑ͕ߴ͍ɺFUDʣ w
ϚϧνϓϥοτϑΥʔϜʢαʔόʔ͔Β7JTJPO04·Ͱશ෦Ͱ͖Δʣ
ଞʹ͖ͳͱ͜Ζ͋Δ
ଞͷ͖ͳͱ͜Ζ w ύοέʔδཧ͕ݴޠʹඪ४Ͱ͍ͯΔʢผͷͭΛೖΕΔඞཁ͕ ͳ͍ʣ w TPNFBOZͱ͔Ωʔϫʔυબఆ͕ྑͯ͘ಡΈ͍͢ʢݸਓతݟղʣ w ຊͷ4XJGUJ04ίϛϡχςΟ͕׆ൃͰྑ͍ਓɾڧ͍ਓଟ͍ w 4XJGUࣗମΦʔϓϯιʔεͳͷͰਐԽͷ༷ࢠ͕ݟΕͯظ͕େ͖͍
͋ͳͨ໌͔Β 4XJGUΛ ͬͯΈΑ͏
͓ΘΓ