e$B%o%J%Y$H?=$7$^$9!#e(B
1.9 e$B$Ge(B DelegateClass e$BM3Mh$N%/%i%9$N%$%s%9%?%s%9$+$i!"e(B
e$B0Q>y@h$N$G$O$J$/<+J,<+?H$N%/%i%9$rF@$kJ}K!$rMQ0U$9$k$3$H$rDs0F$7$^$9!#e(B
1.8 e$B$G$OC1=c$Ke(B class e$B%a%=%C%I$,;H$($^$7$?!#e(B
require ‘delegate’
class Foo < DelegateClass(Integer);end
p Foo.new(1).class # => 1.8e$B$G$Oe(BFooe$B!"e(B1.9 e$B$G$Oe(B Fixnum
e$B<XB-$+$b$7$l$^$;$s$,!"Ds0F$N$=$b$=$b$NF05!$K$D$$$F$G$9!#e(B
1.9 e$B$Ge(B rails-2.1.0 e$B$rF0:n$5$;$?$H$3$m!"e(BDelegateClass
e$B$J%/%i%9Cf$Ne(B
self.class.new e$B$H$$$&ItJ,$G%(%i!<$K$J$C$F$$$^$7$?!#e(B
e$B$^$?!"e(Bclass e$B%a%=%C%I$r>e=q$-$7$J$$$h$&$Ke(B delegate.rb
e$B$r=q$-49$($k$3$H$G!"e(B
–disable-gems e$B$5$(K:$l$J$1$l$PC1=c$Je(B scaffold
e$B$J$iF0$/$3$H$r3NG’$7$^$7$?!#e(B
e$B$H$$$&$o$1$G!"$=$l$J$j$K0U5A$O$"$k$h$&$K;W$&$N$G$9$,$I$&$G$7$g$&$+!#e(B