ରࡦ • ૉͳΞϓϩʔν(࠶ఆٛͰϑϥάΛཱͯΔ) • Fixnum.method_addedΛϢʔβ͕ఆٛͯ͠ ͍Δ߹ͳͲʹӨڹ͕ग़Δ class Fixnum alias eq_orig == def ==(other) eq_orig(other) end alias == eq_orig end
ରࡦ • ࠾༻ͨ͠Ξϓϩʔν(࠶ఆٛҎ֎ͰϑϥάΛཱͯΔ) • ՄࢹੑΛ໌ࣔతʹઃఆ͢Δ(Ruby 2.0ʙ2.2) • refine͢Δ(Ruby 2.0ʙ2.3dev) class Fixnum public :== end module M refine Fixnum do def ==; end end end
ଓɾରࡦ • ૉͳΞϓϩʔν • ϝιουΛ࠶ఆٛͯ͠ݩʹ͞ͳ͍ • BasicObject.method_added(ུ) • ϞϯΩʔύον͕ద༻͞Εͨঢ়ଶͰϢʔβίʔυ͕࣮ߦ͞ Εͯ͠·͏ class BasicObject alias eq_orig == def ==(other); eq_orig(other); end alias == eq_orig end
ଓɾରࡦ • ࠾༻ͨ͠Ξϓϩʔν • refine͢Δ(refine͞Ε͍ͯΔ͜ͱΛࣔ͢ಛघͳϝιου ΤϯτϦΛrb_obj_equalͷલʹૠೖ͢Δ) • ͲͪΒͷΞϓϩʔνͰRubyͷඪ४Ϋϥεʹ͍ͭͯࣄલʹ ରԠ͓ͯ͘͜͠ͱ͕Մೳ͕ͩɺC֦ுͰ࡞ͨ͠Ϣʔβఆٛ Ϋϥε·Ͱٹ͑ͳ͍ͱ͍͏՝Δ module M refine BasicObject do def ==; end end end