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ElixirによるBEAM言語の作り方とUiroのご紹介
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Yasushi Itoh
April 19, 2016
Programming
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1.7k
ElixirによるBEAM言語の作り方とUiroのご紹介
tokyo.ex #1でのLT資料
Yasushi Itoh
April 19, 2016
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Transcript
ElixirʹΑΔBEAMݴޠ ͷ࡞ΓํͱUiro(Ծ)ͷ ͝հ
ࣗݾհ i2yͱਃ͠·͢ɻ ੈؒͰෳ߹ػϝʔΧʔͱͯ͠ೝ͞Εͯ ͍ΔձࣾͷιϑτΣΞΤϯδχΞͰ͢ɻ ࣄͰɺJavaC#ɺJavaScriptΛओ ʹ͍ͬͯ·͢ɻ ElixirɺErlangͱʹॳ৺ऀϨϕϧͰ ͢^^; ࠷ۙͷझຯΦϨΦϨݴޠ࡞ΓͰ͢ɻ PythonͰ࣮ͨ͠PythonʹࣅͨMochi
ͱ͍͏ݴޠΛGitHubͰެ։͍ͯ͠·͢ɻ
τʔΫ༰ ࠷ۙ࡞ͬͨUiro(Ծ)ΛྫʹBEAMݴޠͷ࡞ΓํΛ͓͠͠·͢ɻ Uiro(Ծ)RubyΆ͍จ๏ͷBEAMݴޠͰ͢ɻ ※ ࠷ޙʹRubyΛ৮ͬͨͷ13͘Β͍લͰɺRubyʹৄ͍͠༁Ͱ ͋Γ·ͤΜɻɻ
Uiro(Ծ)ͷ࡞εςοϓ ͬ͘͟Γɺ3εςοϓ 1.۩ମతͳจ๏ΛܾΊΔ ίϯύΠϥʢτϥϯεϨʔλʣΛ࣮͢Δ 2. ιʔείʔυΛߏจղੳͯ͠தؒܗࣜ(AST)ʹม͢Δ 3. தؒܗࣜ(AST)ΛBEAMͷόΠτίʔυʹม͢Δ
۩ମతͳจ๏ΛܾΊΔ Uiro(Ծ)ΛɺRubyʹࣅͨจ๏ͱ͠·ͨ͠ɻ • Rubyʹࣅͨߏจ • ཧ༝ɿErlangͱRubyʹࣅ͍ͯΔ͕͋ΓɺErlangͷػ ೳΛRubyʹϚοϐϯά͠қ͔͔ͬͨΒ ※ ڞʹؔͱม(ଋറʣͷ໊લۭؒΛ۠ผ͢ΔLisp-2ํࣜ ※
͞ΒʹErlangͷΞτϜΛRubyͷγϯϘϧ(:hoge)ͱಉ͡ هड़ͰදݱͰ͖ͦ͏
۩ମతͳจ๏ΛܾΊΔ • ΫϥεϕʔεͷΦϒδΣΫτࢦɺμοΫλΠϐϯά • ཧ༝ɿࣗଟ͘ͷਓʹೃછΈ͕͋Δ͔Βɻ • Πϯελϯεͷঢ়ଶෆม • ཧ༝ɿΦϒδΣΫτࢦ͔ͩΒͱ͍ͬͯɺՄม͕σϑΥϧτ Ͱͳ͍͍ͯ͘ͷͰɻ
Uiro(Ծ)ίʔυ͜Μͳײ͡ # Ϋϥεఆٛʢ1ϑΝΠϧʹ1Ϋϥε͘͠1ϞδϡʔϧͰ͢ʣ class Person def initialize(name, age) {name: name,
age: age} end def name() @name end end module Test_Person def test_name() hoge_san = new Person("hoge", 60) hoge_san.name # => "hoge" end end
Uiro(Ծ)ίʔυ͜Μͳײ͡ # Ϟδϡʔϧఆٛ module Enumerable def select(func) self.reduce([]) {|item, acc|
if func.(item) acc ++ [item] else acc end } end # ҎԼɺলུ end
Uiro(Ծ)ίʔυ͜Μͳײ͡ # ϛοΫεΠϯ module uiro_list include Enumerable def reduce(acc, func)
lists::foldl(func, acc, self) end # ҎԼɺলུ end module test_list def self.test_select() [1, 2, 2, 3].select {|item| item == 2 or item == 3) .unique # => [2, 3] end end
ߏจղੳͯ͠தؒܗࣜʹ leexͱyeccͷೖྗϑΝΠϧΛsrcσΟϨΫτϦʹஔ͍͓͚ͯɺ MixͰϏϧυ࣌ʹࣗಈతʹleexͱyecc͕࣮ߦ͞Ε·͢ɻ
தؒܗࣜΛBEAMͷόΠτίʔυʹ Erlangͷerl_syntaxϞδϡʔϧͱcompileϞδϡʔϧΛ͑ ɺBEAMͷόΠτίʔυΛੜ͔ΜͨΜͰ͢ɻ
࠷ޙʹ • BEAMݴޠ࡞ΔͷΧϯλϯ • ErlangElixirͱࣅ͍ͯΔݴޠɺHTMLςϯϓϨʔτ JSONͱ͍ͬͨΧϯλϯͳݴޠͳΒಛʹɻ • Elixir͍͍͢ʂ • Mixͱͯศར
࠷ޙʹ • Uiro(Ծ)ΑΖ͓͘͠ئ͍͠·͢ʂ • ϓϧϦΫͯ͠Β͑ͨΒخ͍͠Ͱ͢ʂUiro • ϩΰ΄͍͠Ͱ͢ɾɾ(Mochiʣ • MixͱReber3༻ͷϓϥάΠϯΛ࡞༧ఆͰ͢ʂʢ࡞ͬͯΒ ͬͯخ͍͠Ͱ͢ʂʣ
• ࠷ऴతʹηϧϑϗεςΟϯά͍ͨ͠ɻ