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RubyistͳΒͬͯ
͓͖͍ͨ
ܧঝͷ
2018/07/29 TokyuRubyձٞ12
@chiastolite as cͳΜͱ͔e
a.k.a ཧແ৬
a.k.a അձһূ
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ܧঝͱ?
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ܧঝ
class Parent
# Ϋϥε
end
class Child < Parent
# ࢠΫϥε
end
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͔ΒࢠʹҾ͖ܧ͕ΕΔͷʁ
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!
!
ῡ
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Ҩ࢈૬ଓ
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Ҩ࢈૬ଓͷجຊ
1. ඃ૬ଓਓͷࡒ࢈ͷࡧ
2. ඃ૬ଓਓͷࡒ࢈ͷׂΛڠٞ
3. (ඞཁͰ͋Ε) ૬ೲ੫ͷೲ
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૬ଓ੫ͷਃࠂ
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૬ଓ੫ͷਃࠂɾೲ10ϲ݄Ҏ
begin
start = Time.now
if ਃࠂ͕ඞཁ?
ਃࠂ
ೲ੫
raise 'ظݶΦʔόʔ' if Time.now > start + 10.months
end
rescue
ೲ੫ֹ + ແਃࠂՃࢉ੫ + Ԇ੫
end
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ਃࠂͷఆ?
جૅ߇আ = 30_000_000
def ਃࠂ͕ඞཁ?
૬ଓֹ > جૅ߇আ + ૬ଓਓ * 6_000_000
end
def ૬ଓֹ
amount ||= 0
amount += parent.ݱۚ
amount += parent.༬ஷۚ
amount += parent.ূ݊
amount += parent.
amount += parent.ݐ
amount += parent.ࣗಈं
amount -= parent.࠴
end
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૬ଓ੫ͷઅ੫
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૬ଓֹΛઅ੫͢Δʹ
→ ੜલଃ༩
→ ॅΒڭҭΒͷࢧԉΛͯ͠Β͏
→ ͳͲΛങ͏ͱࢿ࢈ֹ͕ 㽊
→ ඇ՝੫ͷࢿ࢈Λങ͏
→ ಛྫΛ͏
→খنͷಛྫ
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ͦΕͰӽ͑ͯ͠·ͬͨΒʁ
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͖͋ΒΊ·͠ΐ͏ɻਃࠂͩʂ
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୭ʹཔΉʁ
→ ۜߦ
→ หޢ࢜
→ ੫ཧ࢜
→ ࢘๏ॻ࢜
→ ߦॻ࢜
ͩΕʹཔΊ͍͍ͷΒ…
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!
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͜ͷࡍɺࣗͰͬͯ͠·͍͍͑ͷʁ
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ͱ͍͏Θ͚ͰͬͯΈͨ
→ ܭࢉͱ͔هೖྫ͕ͪΌΜͱ͋ΔͷͰ؆୯
→ Ձ͕໌֬ͳݱۚ࠷ߴ
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ਃࠂͷ໘ͳͱ͜Ζ
→ खॻ͖ॻྨ࠷ѱ
→هೖϛεڐ͞Εͳ͍…
→ ඃ૬ଓਓͷੜ·Ε͔ͯΒͷށ੶౽ຊूΊ
→ ਃࠂઌʮඃ૬ଓਓʯͷ࠷ऴډॅ
→ Ͳ͜ʹݴͬͯʮ͓͑Ͱ͖ͳ͍ʯ
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·͍͊Ζ͍Ζ͋Γ·͕ͨ͠
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ͳΜͱ͔ͳΔͷ
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࠷ޙʹ
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ࣄલͷใେࣄ
→ ށ੶Ͳ͜ʹ͋Γͦ͏ʁ
→ Ͳͷۚ༥ػؔͬͯΔʁ
→ ӅΕͨࢿ࢈ͳ͍ʁ
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Λฉ͔͕ͤͯΒͦΜͳΛͯ͠Έͯ?