[MacRuby-devel] [MacRuby] #227: Using a block's binding causes segfault

[MacRuby]

#227: Using a block's binding causes segfault
------------------------------------+---------------------------------------
 Reporter:  charles.nutter@…        |       Owner:  lsansonetti@…        
     Type:  defect                  |      Status:  new                  
 Priority:  blocker                 |   Milestone:  MacRuby 0.4          
Component:  MacRuby                 |    Keywords:                       
------------------------------------+---------------------------------------
 Under all version of Ruby, you can use the binding associated with a block
 for further evals. This appears to segfault MacRuby 0.4:

 {{{
 ~/projects/jruby ➔ macruby -e "def foo(&b); eval 'a = 2', b.binding; end;
 a = 1; foo {}; puts a"
 -e:1: [BUG] Bus Error
 MacRuby version 0.4 (ruby 1.9.1) [universal-darwin9.5, i386]

 -- stack frame ------------
 0000 (0x30030): 00000004
 0001 (0x30034): 00000000
 0002 (0x30038): 00000004
 0003 (0x3003c): 00000000
 0004 (0x30040): 00000003
 0005 (0x30044): 00000004
 0006 (0x30048): 01018a80
 0007 (0x3004c): 00000004
 0008 (0x30050): 010183a0
 0009 (0x30054): 00000004
 0010 (0x30058): 01018370
 0011 (0x3005c): 00000004
 0012 (0x30060): 01048730
 0013 (0x30064): 010183a0
 0014 (0x30068): 00000004
 0015 (0x3006c): 00000000 <- lfp <- dfp
 -- control frame ----------
 c:0005 p:---- s:0016 b:0016 l:000015 d:000015 CFUNC  :binding
 c:0004 p:0011 s:0013 b:0011 l:000010 d:000010 METHOD -e:1
 c:0003 p:0016 s:0007 b:0007 l:000fe8 d:000fe8 TOP    -e:1
 c:0002 p:---- s:0004 b:0004 l:000003 d:000003 FINISH :inherited:
 c:0001 p:0000 s:0002 b:0002 l:000001 d:000001 TOP
 ---------------------------
 DBG> : "-e:1:in `binding'"
 DBG> : "-e:1:in `foo'"
 DBG> : "-e:1:in `<main>'"
 -- backtrace of native function call (Use addr2line) --
 0x2f1f66
 0x2069dc
 0x206a1b
 0x2a27db
 0x9715f2bb
 0xffffffff
 0x2ed63f
 0x2ddbaf
 0x2e822b
 0x2e84be
 0x209ec9
 0x20d050
 0x1e8f
 0x1df6
 -------------------------------------------------------
 Abort trap

 }}}

-- 
Ticket URL: <http://www.macruby.org/trac/ticket/227>
MacRuby <http://macruby.org/>