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Swift Weekly 2017-09-05
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Johnlin
September 05, 2017
Programming
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Swift Weekly 2017-09-05
Johnlin
September 05, 2017
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Transcript
Swift पใ 2017/09/04 John Lin @johnlinvc
From the core • Swift 4 : End game •
Swift 5 : Start your engine • Swift refactor ۩։ݯ
Swift 4 : End game • Swift 4 ਐೖᏅඌ֊ஈɻෆ࠶डमվత proposal
ɻ • ༬ܭ 2017 ఈલ။ਖ਼ࣜᚙɻ
Swift 5 : Start your engine • ։࢝։ᚙ Swift 5
• ओཁඪ: ᜦఆ ABI(application binary interface) • ॴ༗ ABI ༗᮫త౦धཁ၏ɼแؚɿ • ߋڧత Generic: ૾ੋ recursive protocol • ڧ݈త API: ᩋ API ࡏ ABI ෆᏓతگԼਐߦमվ • Memory Ownership model: (opt-in) Rust ෩֨తهԱᱪཧɼᩋ Ꮘೳߋߴɻ
Swift 5 : Start your engine • ࣍ཁඪ: • ߋූ߹ਓᱪላత
String: ඪੋ㐝ഊ Perl • վਐ std lib: ᩋଞߋ༻Ұᴍ • վਐ Foundation: ݱࡏؐ༗Ұථᔒಘ༻ • ৽⃧ޠ๏ɿᔒඞཁෆ။վɼՌతؐੋ။վ • ҝ৽తconcurrent model ฯ࿏ : ୠੋᔒ༗ཁ၏౸ɻ
Swift 5 : Start your engine • Swift 4
ҰᒬɼSwift 5 ՄҎબ Swift 4 ࣜɻఔࣜ ᛰશ૬༰ɻෆաෆอᨽೳࢧԉ Swift 3ɻ 2018 ॳ ။֬ೝೳෆೳࢧԉ 3. • Coming Soooon at 2018
Swift refactor ۩։ݯ • 䈕Ҋ㚎తॏߏ۩ቮៃ։ݯྃɼෆաލ䈕Ҋతؐᔒɻ • ༗ၷछॏߏࣜɼࢦඪࣜൣᅴࣜɻ • ࢦඪࣜแؚ໊ࣈɼlocalize ࣈ۲
• ൣᅴࣜแؚ நग़expression, நग़ํ๏ • ॴҎݱࡏՄҎࣗݾሜ refactor tool ྃɻ
Evolution • [SE-0185] ࣗಈ߹ Equatable ᢛ Hashable
[SE-0185] ࣗಈ߹ Equatable ᢛ Hashable • ݱࡏཁᩋࣗݾత struct/class ՄҎ༻ ==
༗ᴍຑ struct Point : Equatable { let x : Double let y : Double init(x:Double, y:Double ) { self.x = x self.y = y } static func ==(lhs: Point, rhs: Point) -> Bool { return lhs.x == rhs.x && lhs.y == rhs.y } }
[SE-0185] ࣗಈ߹ Equatable ᢛ Hashable • ݱࡏཁᩋࣗݾత struct ՄҎ༻ ==
༗ᴍຑ struct Point : Equatable { ... static func ==(lhs: Point, rhs: Point) -> Bool { return lhs.x == rhs.x && lhs.y == rhs.y } } એࠂ࠽ೳ༻ == ҃ != let a = Point(x: 0, y: 0) let b = Point(x: 1, y: 1) a == a // true a != b // true
[SE-0185] ࣗಈ߹ Equatable ᢛ Hashable • 㑌Ұݸ struct ཁ༗
static func ==(lhs: Point, rhs: Point) -> Bool { return lhs.x == rhs.x && lhs.y == rhs.y } • ୠੋ㚎༰େಉখҟɼबੋ㑌Ұݸ property compare Ұ࣍ɻ
[SE-0185] ࣗಈ߹ Equatable ᢛ Hashable • ೭ޙՄҎཁ conform Equatable ब။ࣗಈ㗞ੜ
static func ==(lhs: Point, rhs: Point) -> Bool {} • ཫ໘။㑌ݸ property ൺֱҰ࣍ɻ • ෆ။ሣݱ༗త code ༗Өڹɻ ᔒ༗ confrom తबෆ။༗Ꮘ Ռɻ • ࢧԉ struct enum , ෆࢧԉ class , tuple • Hashable Ұᒬ။ࣗಈ㗞ੜɼᩋࢧԉ dict Ꮣಘߋ؆ᄸ
Community • Chris Lattner 䋯ڈ Google ྃɻۀత࣌ީҾᚙྃ concurrency େፌɻ •
https://gist.github.com/lattner/ 31ed37682ef1576b16bca1432ea9f782