From: murphy <murphy@...>
Date: 2007-12-23T06:58:29+09:00
Subject: Re: [BUG] Bus Error: block_given? (trunk)

murphy wrote:
>   def foo
>     yield if block_given?
>   end
> 
>   foo(&:bar)
and the same with

  def foo(&block)
    yield if block
  end

  foo(&:bar)

bug-block.rb:2: -- control frame ----------
c:0005 p:---- s:0011 b:0011 l:000608 d:000010 IFUNC  :proc
c:0004 p:0007 s:0009 b:0009 l:000008 d:000008 METHOD bug-block.rb:2
c:0003 p:0014 s:0005 b:0005 l:000004 d:000004 TOP    bug-block.rb:5
c:0002 p:---- s:0003 b:0003 l:000002 d:000002 FINISH :inherited
c:0001 p:---- s:0001 b:-001 l:000000 d:000000 ------
---------------------------
DBG> : "bug-block.rb:2:in `foo'"
DBG> : "bug-block.rb:5:in `<main>'"
-- backtrace of native function call (Use addr2line) --
0xda5f6
0x1b425
0x1b4cb
0x9825b
0x9178697b
0xffffffff
0xd5f13
0xd8c8c
0xd8f59
0x1e944
0x234ba
0x1fbf
0x1f26
-------------------------------------------------------
[BUG] Bus Error
ruby 1.9.0 (2007-12-23) [i686-darwin9.1.0]

maybe something is wrong with &:bar then?
[murphy]