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しんどくならないモジュール分割
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Keigo Ebihara
August 25, 2019
Programming
1.8k
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しんどくならないモジュール分割
Elmアプリケーションの規模が大きくなってきたときのモジュールを分割する方法について考えてみました
Keigo Ebihara
August 25, 2019
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Transcript
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͍͖ͨͩ·ͨ͠ɻ
͜ͷΞϓϦͲ͏࡞Γ·͔͢ʁ
&MNΛॻ͍ͨ͜ͱ͕͋ΔਓͳΒ ؆୯ͳͣ
͝ͱʹNPEVMFΛׂ͢Δ ͱͨ͠ΒͲ͏࡞Γ·͔͢ʁ
IUUQTHVJEFFMNMBOHKQXFCBQQTTUSVDUVSFIUNMl"O*OUSPEVDUJPOUP&MNzΑΓ
IUUQTHVJEFFMNMBOHKQXFCBQQTTUSVDUVSFIUNMl"O*OUSPEVDUJPOUP&MNzΑΓ ཁ ॳΊ͔ΒϑΝΠϧΛࡉ͔͚ͯ͘ॻ͘ͷΦεεϝ͠·ͤΜɻ ͨͱ͑ߦʹͳͬͨͱͯ͠େৎɻ ͦ͏ɺ&MNͳΒͶɻ
ׂ͍͚ͯ͠ͳ͍ ແҋ୫ͱׂ͍͚ͯ͠ͳ͍
ͬͺΓ͍͔ͭ ׂ͠ͳ͚ΕͳΒͳ͍
ϞδϡʔϧΛׂ͢Δ࣌ͷ͜ͱΛ ߟ͑ͯΈ·͢
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ׂ͢Δ࣌ʹߟ͑Δ͜ͱ w ׂ͢Δ୯Ґ w σΟϨΫτϦߏ w ϞδϡʔϧͷΠϯλʔϑΣΠεˡ͜͜ͷΛ͠·͢ w ଞʹ৭ʑ
ׂ͠ͳ͍࣌ͱͷҧ͍ .PEVMF $IJME" $IJME# 1BSUT" 1BSUT# 1BSFOU ׂ͠ͳ͍߹ ׂ͢Δ߹ ׂΛ͢Δ߹ϞδϡʔϧͱࢠϞδϡʔϧͷ
ίϛϡχέʔγϣϯ͕ඞཁʹͳΔ
ͱࢠͷίϛϡχέʔγϣϯ w ࢠ͔ΒʹɺࢠͷλΠϛϯάͰ࡞༻͢Δ w ͔ΒࢠʹɺͷλΠϛϯάͰ࡞༻͢Δ $IJME" $IJME# 1BSFOU
಄ͷྫͰݴ͏ͱ ࢠ"ͷϘλϯΛԡͨ͜͠ͱΛʹ͑ ࢠ͔Β ͕ࢠ#ͷΧϯτΛ ͢Δ ͔Βࢠ
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ίʔϧόοΫͷΘΓʹ $NEΛ༻͢Δ w ҙͷ.THΛൃߦ͢Δ$NEΛ࡞Δؔ w ͷ.THΛൃߦ͢Δ$NEΛࢠͷVQEBUFؔʹ͢ɻ w ࢠ͕ͦͷ$NEΛฦ٫͢ΕίʔϧόοΫ͕ى͖Δɻ
w $NEOPOFΛฦͤίʔϧόοΫى͖ͳ͍ɻ w ͭ·Γɺࢠ͕ͷ.THΛൃߦ͢Δ͔બͰ͖Δɻ
$NEΛίʔϧόοΫʹ͏ VQEBUFؔ ͍ͭͷVQEBUFؔ ίʔϧόοΫΛઃఆͰ͖ΔVQEBUFؔ
ࢠ͔Βͷ.THΛୟ͘ϑϩʔ 1BSFOU $IJME &MN3VOUJNF ࢠͷVQEBUFؔʹίʔϧόοΫ༻ͷ$NEΛ͢ɻ ࢠίʔϧόοΫ༻ͷ$NEΛฦ٫͢Δɻ ͦͷ$NEΛ&MN3VOUJNFʹฦ٫͢Δɻ
&MN3VOUJNF$NEΛղऍͯ͠ͷ.THΛൃߦ͢Δɻ
͔Βࢠ w ͲΜͳࢠΛΘΕͯΔͷ͔Λ͍ͬͯΔͨΊɺࢠʹఆٛ ͞ΕͨؔΛ͏͜ͱ͕Ͱ͖Δɻ 1BSFOU $IJME
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͕ࢠͷ.THΛୟ͘ϑϩʔ 1BSFOU $IJME &MN3VOUJNF ࢠ͕ެ։͍ͯ͠Δ$NEΛ&MN3VOUJNFʹฦ٫͢Δɻ &MN3VOUJNF$NEΛղऍͯ͠ͷ.THΛൃߦ͢Δɻ .THΛղऍͯ͠ࢠͷVQEBUFؔΛݺͿɻ
·ͱΊͱҙ w ࢠ͔ΒʹɺࢠͷλΠϛϯάͰ࡞༻͢Δ ˠࢠͷVQEBUFؔʹͷίʔϧόοΫ༻$NEΛ͢ɻ w ͔ΒࢠʹɺͷλΠϛϯάͰ࡞༻͢Δ ˠࢠ͕֎෦͔Β͏ͨΊͷ$NEΛެ։͕ͦ͠ΕΛୟ͘ɻ w
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͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠ɻ ͤͳ͔ͬͨ͜ͱ͕ͨ͘͞Μ͋ΔͷͰɺଓ͖࠙ձͰʂ