# \[Bug #2402\] super in instance\_eval

**URL:** <https://www.ruby-forum.com/t/bug-2402-super-in-instance-eval/179452>\
**Category:** Development\
**Created:** [November 25, 2009, 9:56am UTC](https://www.ruby-forum.com/t/bug-2402-super-in-instance-eval/179452 "2009-11-25T09:56:15Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![Shugo\_M](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/7ea924/32.png) [@Shugo\_M](https://www.ruby-forum.com/u/Shugo_M)\
**Post date:** [November 25, 2009, 9:56am UTC](https://www.ruby-forum.com/t/bug-2402-super-in-instance-eval/179452/1 "2009-11-25T09:56:15Z")

</div>

Bug #2402: super in instance\_eval  
[http://redmine.ruby-lang.org/issues/show/2402](http://redmine.ruby-lang.org/issues/show/2402)

e$B5/I\<\<Te(B: Shugo M.  
e$B%9%F!\<%?%9e(B: Open, e$BM%@hEYe(B: Normal  
ruby -v: ruby 1.9.2dev (2009-11-24 trunk 25909) [i686-linux]

instance\_evale$B$N%V%m%C%/Fb$Ge(Bsupere$B$r8F$V$H!"e(Binstance\_evale$B$GJQ99$5$l$?e(B  
selfe$B$KBP$7$Fe(Bsupere$B$N8F$S=P$7$r9T$C$F$7$^$&$h$&$G$9!#e(B

defiant:build$ cat t.rb  
class Foo  
def foo  
p self  
end  
end

class Bar \< Foo  
def foo  
x = Object.new  
x.instance\_eval do  
super  
end  
end  
end

Bar.new.foo  
defiant:build$ ./ruby-trunk.1124 -v t.rb  
ruby 1.9.2dev (2009-11-24 trunk 25909) [i686-linux]  
#Object:0x8590f6c

Foo#fooe$B$,8F$P$l$k$N$Ke(Bselfe$B$,e(BObjecte$B$H$$$&!“$A$g$C$H$\*$+$7$J$3$H$K$J$C$F$$$^$9!#e(B  
e$B$A$g$C$H\<+?.$,$”$j$^$;$s$,!"0l1~%Q%C%A$rE:IU$7$^$9!#e(B

---

<div class="post-metadata">

**Author:** ![Shugo\_M](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/7ea924/32.png) [@Shugo\_M](https://www.ruby-forum.com/u/Shugo_M)\
**Post date:** [November 27, 2009, 11:31am UTC](https://www.ruby-forum.com/t/bug-2402-super-in-instance-eval/179452/2 "2009-11-27T11:31:08Z")

</div>

e$B%A%1%C%He(B #2402 e$B$,99?7$5$l$^$7$?!#e(B (by Shugo M.)

e$BFC0[%/%i%9Dj5A$Ge(Bsupere$B$7$?;~$Oe(BNoMethodErrore$B$K$J$k$h$&$G$9!#e(B

defiant:build$ cat t2.rb  
class Foo  
def foo  
p self  
end  
end

class Bar \< Foo  
def foo  
x = Object.new  
class \<\< x  
super  
end  
end  
end

Bar.new.foo  
defiant:build$ ./ruby-trunk.1124 -v t2.rb  
ruby 1.9.2dev (2009-11-24 trunk 25909) [i686-linux]  
t2.rb:11:in `singletonclass': super called outside of method (NoMethodError) from t2.rb:10:in `foo’  
from t2.rb:16:in `’

1.8e$B$G$Oe(BFoo#fooe$B$,8F$P$l$^$9!#e(B

defiant:build$ ruby-1\_8 -v t2.rb  
ruby 1.8.8dev (2009-10-22 revision 25430) [i686-linux]  
#Bar:0xb7ea443c

e$B;29M$^$G$KB\>$N=hM}7O$G$O0J2\<$N$h$&$J5sF0$G$7$?!#e(B

defiant:build$ ir -v t2.rb  
IronRuby 0.9.1.0 on .NET 2.0.0.0  
#Bar:0x0000056  
defiant:build$ jruby -v t2.rb  
jruby 1.5.0.dev (ruby 1.8.7 patchlevel 174) (2009-11-12 421150b) (Java  
HotSpot™ Client VM 1.6.0\_16) [i386-java]  
#\<Class:#Object:0x180cf2a\>  
defiant:build$ rbx -v t2.rb  
rubinius 0.13.0-dev (1.8.7 e614007b 2009-11-06) [i686-pc-linux-gnu]  
An exception occurred running t2.rb  
No method ‘bytecode’ on an instance of NilClass. (NoMethodError)

e$B$=$l$\>$l8D@-$,$"$C$FLLGr$$$G$9$M!#e(B

## e$B8D?ME\*$K$ONc30$G$b$$$$$s$8$c$J$$$+$J$H;W$$$^$9$,!"e(B1.9e$B$Ne(Binstance\_evale$B$G$Ne(B supere$B$d!"e(BJRubye$B$NFC0[%/%i%9Dj5A$G$Ne(Bsupere$B$N$h$&$K!"JQ$J%l%7!\<%P$Ge(Bsupere$B$,e(B e$B8F$P$l$F$7$^$&$N$O$^$:$$$s$8$c$J$$$+$H;W$$$^$9!#e(B

[http://redmine.ruby-lang.org/issues/show/2402](http://redmine.ruby-lang.org/issues/show/2402)

---

<div class="post-metadata">

**Author:** ![Shugo\_M](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/7ea924/32.png) [@Shugo\_M](https://www.ruby-forum.com/u/Shugo_M)\
**Post date:** [April 17, 2010, 5:40am UTC](https://www.ruby-forum.com/t/bug-2402-super-in-instance-eval/179452/3 "2010-04-17T05:40:25Z")

</div>

e$B%A%1%C%He(B #2402 e$B$,99?7$5$l$^$7$?!#e(B (by Yusuke E.)

e$BC4Ev\<Te(B Yukihiro M.e$B$+$ie(BKoichi Sasadae$B$KJQ99e(B

e$B1sF#$G$9!#e(B

> instance\_evale$B$N%V%m%C%/Fb$Ge(Bsupere$B$r8F$V$H!"e(Binstance\_evale$B$GJQ99$5$l$?e(B  
> selfe$B$KBP$7$Fe(Bsupere$B$N8F$S=P$7$r9T$C$F$7$^$&$h$&$G$9!#e(B

e$B:F8=$7$^$7$?!#0J2\<$Ge(B SEGV e$B$9$k$3$H$b3NG’$7$^$7$?!#e(B

class MyArray \< Array  
def reverse  
“foo”.instance\_eval do  
super  
end  
end  
end  
MyArray.new([1,2,3]).reverse

e$B%Q%C%A$b8+$^$7$?!#B.EYNt2=$O5$$K$J$j$^$9$,!"@5$7$$$H;W$$$^$9!#e(B

vm\_search\_superclass e$B$rDI$C$F$_$?$H$3$m!"e(Brecv  
e$B$,I,MW$K$J$k$N$O!"e(B  
e$B8=:_$N%3%s%F%-%9%H$,e(B include e$B$5$l$?e(B module  
e$B$K=jB0$9$k%a%=%C%I$Ne(B  
e$B\>l9ge(B (ICLASS) e$B$@$1$N$h$&$G$9$N$G!"$=$N;~$^$Ge(B recv  
e$B$NF1Dj$rCY1de(B  
e$B$5$;$k$H!"B.EYNt2=$b5$$K$J$i$J$/$J$k$+$b$H;W$$$^$9!#e(B

e$B$?$@!“$=$NJU$N=$@5$Oe(B [ruby-dev:40959]  
e$B$N=$@5$N8e$K$d$C$?$[$&$,e(B  
e$B$$$$M=46$,$9$k$N$G!”:GE,2=$O8e$K$7$F!“$H$j$”$($:$3$NLdBj$OA0EDe(B  
e$B$5$s$N%Q%C%A$Ge(B close e$B$9$k$N$,$$$$$H;W$$$^$9!#e(B

## – Yusuke E. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)

[http://redmine.ruby-lang.org/issues/show/2402](http://redmine.ruby-lang.org/issues/show/2402)

---

<div class="post-metadata">

**Author:** ![Shugo\_M](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/7ea924/32.png) [@Shugo\_M](https://www.ruby-forum.com/u/Shugo_M)\
**Post date:** [May 10, 2010, 5:28pm UTC](https://www.ruby-forum.com/t/bug-2402-super-in-instance-eval/179452/4 "2010-05-10T17:28:52Z")

</div>

e$B%A%1%C%He(B #2402 e$B$,99?7$5$l$^$7$?!#e(B (by Koichi Sasada)

## e$B%Q%C%A$OA4A38+$F$J$$$N$G$9$,!$1sF#$5$s$,NI$$$H6D$C$F$k$N$GNI$$$N$G$O$J$$$+$H;W$$$^$9!%e(B

[http://redmine.ruby-lang.org/issues/show/2402](http://redmine.ruby-lang.org/issues/show/2402)

---

<div class="post-metadata">

**Author:** ![Shugo\_M](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/7ea924/32.png) [@Shugo\_M](https://www.ruby-forum.com/u/Shugo_M)\
**Post date:** [May 27, 2010, 5:50pm UTC](https://www.ruby-forum.com/t/bug-2402-super-in-instance-eval/179452/5 "2010-05-27T17:50:18Z")

</div>

e$B%A%1%C%He(B #2402 e$B$,99?7$5$l$^$7$?!#e(B (by Yusuke E.)

Target version 1.9.xe$B$K%;%C%He(B

e$B1sF#$G$9!#e(B

[Bug #2502] [Bug #3136] e$B$"$?$j$Ge(B super  
e$B$N=$@5$O8e2s$7$K$7$h$&$H$$$&$3$H$Ke(B  
e$B$J$j!“e(Br28043 e$B$G$H$j$”$($:$NBP:v$r$7$?$N$G!"e(B1.9.x  
e$B$K$7$^$9!#e(B

## – Yusuke E. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)

[http://redmine.ruby-lang.org/issues/show/2402](http://redmine.ruby-lang.org/issues/show/2402)