From: Tanaka Akira <akr@...17n.org>
Date: 2002-07-24T13:48:45+09:00
Subject: [ruby-dev:17794] Re: self in block

In article <4.3.2-J.20020723180732.03de9ca8@blade.nagaokaut.ac.jp>,
  Shin-ichiro HARA <sinara@blade.nagaokaut.ac.jp> writes:

> $B;d$b(B self $B$r$9$2BX$($k$N$O%J%7$@$H;W$$$^$9$,!"(Bcall_current_block
> $B$NF3F~$O!J$3$l$OL>A0$,D9$9$.$k$H;W$&$1$I!K$$$$$s$8$c$J$$$+$H;W$$(B
> $B$^$9!#(Bself $B$9$2BX$($H0l=o$KO@$8$i$l$k$N$O$+$o$$$=$&!#(B
> 
> $B0l;~E*$J!"L>A0$r;}$?$J$$4X?t$,M_$7$+$C$?$N$K$?$@:F5"$N$?$a$@$1$KJQ(B
> $B?t$KBeF~$9$k$N$O;DG0$J5$$,$7$^$9!#$=$l$K!"JQ?t$N%9%3!<%W$K0M$i$J$$(B
> $B$N$O5$;}$A$$$$$G$9$h!#%+%C%H%"%s%I%Z!<%9%H$bMQ0U$@$7!#!J$=$l$r8@$C(B
> $B$?$iIaDL$N%a%=%C%I$K$b<+J,<+?H$rI=$9%b%N$,M_$7$/$J$k$+!#!K(B

$B$=$&$=$&!"=q$/$N$rK:$l$^$7$?$,!"%+%C%H%"%s%I%Z!<%9%H$,MF0W$J$N$O$$$$$3(B
$B$H$@$H;W$$$^$9!#$3$l$OL>A0$NJQ99$H$$$&%j%U%!%/%?%j%s%0$,MF0W$@$H$$$&$3(B
$B$H$G$^$C$?$/$b$C$F$$$$$3$H$G$9!#8@8l$H$$$&$N$O%j%U%!%/%?%j%s%0$,MF0W$J(B
$B$h$&$K$G$-$F$$$k$Y$-$G$9!#(B

$B$3$l$K8B$i$:%j%U%!%/%?%j%s%0$NMF0W@-$H$$$&4QE@$+$i8@8l;EMM$rD/$a$k$3$H(B
$B$O$$$m$$$m$H2DG=$G!"$?$H$($P(B open class ($B0l$D$N%/%i%9$N%a%=%C%I$rJ#?t(B
$B$N%b%8%e!<%k$GDj5A$G$-$k5!G=(B - CLOS $B$H$+(B Ruby $B$H$+(B)$B$,$"$k$H%a%=%C%I$r(B
$B%b%8%e!<%k4V$G0\F0$9$k$N$,MF0W$G$9$+$i!"$3$l$O$$$$$3$H$G$9!#(B

# open class $B$NMxE@$O$3$l$@$1$8$c$"$j$^$;$s$1$I$M!#(BVisitor $B%Q%?!<%s$,(B
# $BI,MW$J$/$J$k$H$+!"$$$m$$$m$"$j$^$9!#(B

$B$^$!!"(Bdynamic scope $B$J$i%a%=%C%I$N3g$j=P$7$,(B($B<+M3JQ?t$rD4$Y$"$2$J$/$F(B
$B$h$/$J$k$V$s(B)$B4JC1$K$J$k$+$i$H$$$C$F(B static scope $B$h$j$b(B dynamic scope
$B$,$$$$$+$H$$$&$H$=$l$OB>$N7gE@$H$N%H%l!<%I%*%U$NOC$K$J$k$o$1$G$9$,!#(B

$B$=$&$$$&0UL#$G(B call_current_block $B$b$$$$$b$N$G$O$"$k$s$G$7$g$&$,!"$=$l(B
$B$K$h$kMxE@$O8BDjE*$@$H$$$&5$$,$7$^$9!#(Bkeyword (Kernel $B$N%a%=%C%I(B?)$B$rA}(B
$B$d$9$3$H$K$h$j!"$=$NL>A0$NJQ?t$,;H$($J$/$J$j!"%W%m%0%i%^$,3P$($k$3$H$,(B
$BA}$($k$H$$$&:3:Y$J7gE@$HHf$Y$F$5$(MxE@$,>e2s$k$+$H$$$&$N$OHyL/$J46$8$r(B
$B<u$1$^$9!#(B

$B$b$&>/$72?$+Dc%l%Y%k$J$b$N$r85$K(B call_current_block $B$r<BAu$9$k%i%$%V%i(B
$B%j$,$"$k$H$$$&$J$i<u$1F~$l$d$9$$$+$b$7$l$^$;$s!#(B
-- 
[$BEDCf(B $BE/(B][$B$?$J$+(B $B$"$-$i(B][Tanaka Akira]
$B!V$U$($m(B! $B$o$+$a$A$c$s:n@o$G$9$(C"=$B!W(B(Little Worker, $B7KM7@84](B)