Hash$B$N%G%U%)%k%HCM$N%V%m%C%/$GL58B%k!<%W$9$k$H(Bcore

Ruby Development
1

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Foo = Hash.new{|h, k| bar}
def bar
Foo[‘key’]
end
bar

2

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In message “Re: [ruby-dev:38252]
Hashe$B$N%G%U%)%k%HCM$N%V%m%C%/$GL58B%k!<%W$9$k$He(Bcore”
on Thu, 2 Apr 2009 19:17:22 +0900, “KISHIMOTO, Makoto”
[email protected] writes:

|trunke$B$G0J2<$N$h$&$J!“L58B$K:F5”$9$k%9%/%j%W%H$r<B9T$9$k$H!"e(B
|SystemStackErrore$B$K$J$i$:$Ke(Bcoree$B$rEG$-$^$9!#e(B

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3

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$ cat foo.rb
def foo
foo
end
foo
$ ruby19 foo.rb
foo.rb:2:in foo': stack level too deep (SystemStackError) from foo.rb:2:infoo’
from foo.rb:2:in foo' from foo.rb:2:infoo’
from foo.rb:2:in foo' from foo.rb:2:infoo’
from foo.rb:2:in foo' from foo.rb:2:infoo’
from foo.rb:2:in foo' ... 8717 levels... from foo.rb:2:infoo’
from foo.rb:2:in foo' from foo.rb:2:infoo’
from foo.rb:5:in `’

4

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At Tue, 7 Apr 2009 20:36:00 +0900,
SASADA Koichi wrote in [ruby-dev:38288]:

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5

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KISHIMOTO, Makoto wrote::

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6

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http://www.oreilly.co.jp/editors/archives/2009/03/debug-hackshack.html
http://www.oreilly.co.jp/editors/debug_hacks_26.pdf
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http://someday-join-us.blogspot.com/
http://blog.miraclelinux.com/yume/
mailto:[email protected]
Debug Hacks–e$B%G%P%C%0$r6K$a$k%F%/%K%C%/!u%D!<%kM=Ls<uIUCfe(B

2009/4/8 Nobuyoshi N. [email protected]: