Duck typing

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[ruby-dev:31515] Re: Random e$B$h$j!#e(B

Tanaka A. wrote:

duck typing e$B$NET9g>e!“F1L>$G5sF0$,0[$J$k%a%=%C%I$O$G$-$l$PHre(B
e$B$1$?$[$&$,$$$$$H;W$&$s$G$9$,!”$I$&$G$7$g$&$+!#e(B

duck
typinge$B4XO"$N%M%?!#$3$J$$$@e(Bsoap4re$B$K!Ve(Bto_xmle$B!W$H$$$&e(Bsignaturee$B$rMxMQ$7e(B
e$B$?e(Bduck typinge$B$J5!G=$rF~$l$?$i!"e(BRailse$B$Ne(BActive
Supporte$B$,e(B::Arraye$B$He(B::Hashe$B$Ke(B
e$BDj5A$7$F$$$ke(Bto_xmle$B%a%=%C%I$H>WFM$7$^$7$?!#e(B

soap4re$B$,e(Bto_xmle$B$K4|BT$7$F$$$?$N$OL50z?te(Bsignaturee$B$G!“e(BActive
Supporte$B$Oe(B1e$B0z?te(B
signaturee$B!Je(Bto_xml(option)e$B!K$r4|BT$7$F$$$?$?$ae(Bcrashe$B$7$?$s$G$9$,!”$3$&$$$&e(B
e$B$N!"e(Bduck typinge$BE*$K$O$I$&$7$?$i$$$$$G$9$+$M!#e(Barity
checke$BIU$-$Ne(B
respond_to?e$B$r:n$k$H$+!"e(Brespond_to?e$B$OL50z?te(B or
e$B%-!<%o!<%I0z?t$N$_$N>l9g$Ke(B
truee$B$rJV$9$h$&$K$9$k$H$+!#e(B

e$B$=$l$K$7$F$b!"e(BRailse$BJ}LL$H$OAj@-$,0-$$!#e(B

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