Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
mixin実装の現状と課題
Search
Ryusuke SEKIYAMA
March 15, 2014
Programming
2
2.9k
mixin実装の現状と課題
第五回闇PHP勉強会のミックスインについてLTしたスライドです
Ryusuke SEKIYAMA
March 15, 2014
Tweet
Share
More Decks by Ryusuke SEKIYAMA
See All by Ryusuke SEKIYAMA
php_mecabをFFIで実装してみよう
rsky
0
640
Other Decks in Programming
See All in Programming
「個人開発マネタイズ大全」が教えてくれたこと
bani24884
1
280
複数のAWSアカウントから横断で 利用する Lambda Authorizer の作り方
tc3jp
0
120
Jakarta EE meets AI
ivargrimstad
0
560
Lambdaの監視、できてますか?Datadogを用いてLambdaを見守ろう
nealle
2
490
iOSでQRコード生成奮闘記
ktcryomm
2
110
Serverless Rust: Your Low-Risk Entry Point to Rust in Production (and the benefits are huge)
lmammino
1
160
ABEMA iOS 大規模プロジェクトにおける段階的な技術刷新 / ABEMA iOS Technology Upgrade
akkyie
1
230
CDK開発におけるコーディング規約の運用
yamanashi_ren01
2
260
AWS Step Functions は CDK で書こう!
konokenj
4
730
dbt Pythonモデルで実現するSnowflake活用術
trsnium
0
270
SwiftUI移行のためのインプレッショントラッキング基盤の構築
kokihirokawa
0
160
Drawing Heighway’s Dragon- Recursive Function Rewrite- From Imperative Style in Pascal 64 To Functional Style in Scala 3
philipschwarz
PRO
0
110
Featured
See All Featured
A Tale of Four Properties
chriscoyier
158
23k
KATA
mclloyd
29
14k
Bash Introduction
62gerente
611
210k
CoffeeScript is Beautiful & I Never Want to Write Plain JavaScript Again
sstephenson
160
15k
Side Projects
sachag
452
42k
10 Git Anti Patterns You Should be Aware of
lemiorhan
PRO
656
59k
Design and Strategy: How to Deal with People Who Don’t "Get" Design
morganepeng
129
19k
I Don’t Have Time: Getting Over the Fear to Launch Your Podcast
jcasabona
32
2.1k
Code Review Best Practice
trishagee
67
18k
RailsConf & Balkan Ruby 2019: The Past, Present, and Future of Rails at GitHub
eileencodes
134
33k
How GitHub (no longer) Works
holman
314
140k
Optimizing for Happiness
mojombo
377
70k
Transcript
mixin実装�の現状と課題 @rsky 2014-03-15 第五回闇PHP勉強会
PHP (>= 5.4) ͰͷTraits TraitͰܕʢΫϥεͷܧ ঝؔʣʹӨڹΛ༩͑ ͣʹػೳΛ࠶ར༻Ͱ͖ ΔΑ͏ʹͳͬͨɻ Ϋϥεએݴ࣌ʹ੩తʹ هड़͢Δɻ
<?php trait FooFighter { function foo() { echo “FOO\n”; } } ! class A { use FooFighter; } ! class B { use FooFighter; }
ҰํɺScalaͰ ଞͷΫϥεΛܧঝ͠ͳ͍ ͱ͖extendsͰϛο ΫεΠϯɻ ଞͷΫϥεΛܧঝ͢Δͱ ͖withͰϛοΫεΠ ϯɻ ΠϯελϯεԽ࣌ʹϛο ΫεΠϯͰ͖Δɻ trait
FooFighter { def foo = println(“FOO”) } ! class A extends FooFighter ! class B extends C with FooFighter ! val c = new C() with FooFighter
lΠϯελϯεԽ࣌ʹϛοΫεΠϯͰ͖Δz
1)1Ͱ͜ΕΓ͍ͨʂ
Ͱ͍͠ΜͰ͠ΐ͏
Ͱ͖ͨʂ http://blog.r-sky.jp/post/38388457154/qiq-reborn https://github.com/rsky/php-src/tree/scala-like-mixin
Ͱ͖ͨ͜ͱ ΠϯελϯεԽ࣌ʹ use Traitͯ͠Ϋϥε Λੜ͢Δߏจɻ Ϋϥε໊ͷΘΓʹม ར༻Մೳɻ →factoryύλʔϯ͖ <?php trait
FooFighter { function foo() { echo “FOO\n”; } } ! class A {} ! (new A use FooFighter)- >foo(); ! $x = ‘FooFighter’; (new A use $x)->foo();
Ͱ͖͍ͯͳ͍͜ͱ Precedenceʢ༏ઌॱҐ ผ໊ͷఆٛʣ <?php trait FooFighter { function foo() {
echo “FOO\n”; } } ! class A {} ! (new A use FooFighter { FooFighter::foo as bar; })->bar();
Πέͯͳ͍͜ͱ new Class use (Trait1, Trait2, …) ($arg1, $arg2, …)
ܗࣜͷͨΊɺτϨΠτͱί ϯετϥΫλҾ͕ฆΒΘ͍͠ɻ →࠷৽൛ͰτϨΠτ͕1ͭͰׅހඞਢʹͨ͠ <?php $ab = new A use B ($arg1, $arg2); $abc = new A use (A, B) ($arg1, $arg2);
͜͏͍ͨ͠ʂ useεςʔτϝϯτΛίϯετϥΫλҾͷޙʹɻ Precedenceॻ͚Δɻ PrecedenceͰมͰΫϥεղܾͰ͖Δɻ <?php $ab = new A ($arg1,
$arg2) use B; $abc = new A ($arg1, $arg2) use ($b, $c) { $b::foo insteadof $a; $c::foo as bar; };
͜Ε͋Γʁ τϨΠτͷϦετΛׅހͰׅ͍ͬͯΔͷߏจ্ ͷ༏ઌॱҐͷͨΊͳͷͰɺScalaͷΑ͏ʹෳͷ useεςʔτϝϯτΛྻڍ͢Δख͋Δɻ <?php $abc = new A ($arg1,
$arg2) use B use C;
ٕज़త՝ yaccతʹໃ६͕ͳ͍จ๏ఆٛ·Ͱ ʢखݩͷόʔδϣϯͰʣͰ͖͍ͯΔɻ ҾϦετ͕࢝·ΔΑΓલʹΠϯελϯεԽ͢Δ Ϋϥε͕֬ఆ͍ͯ͠ͳ͍ͱ͍͚ͳ੍͍ݶ͕͋Δɻ <?php $abc = new A
($arg1, $arg2) use (B, C);
ղܾҊA ຊ࣭తղܾʁ ਖ਼ɺ͍͠ Zend EngineΛ৽͍͠จ๏ͷͨΊʹΰϦΰϦॻ͖͑Δ
ղܾҊB new A($arg) use(B, C) ↓ new A use (B,
C) ($arg) ϓϦϓϩηοαΛ͔·ͯ͠ਓʹ͍͞͠ίʔυΛ! ػցʹ͍͞͠ίʔυʹܗ͔ͯ͠ΒίϯύΠϧ ݸਓతʹͬͪ͜ͷํ͕Έ PHP: Hypertext Preprocessor
ղܾҊC (ABં?) ίϯύΠϥΛ͍ͬͯ͘͡op_arrayΛฒͼସ͑Δ ίʔυ্Ͱ͜͏ new A($arg) use(B, C) ίϯύΠϧ͞ΕͨόΠτίʔυͰ͜ΕͱՁ new
A use(B, C)($arg)
୭͔͓ئ͍͠·͢ʂ