[MacRuby-devel] MacRuby 0.9 - crash using Proc.new with NSArray.enumerateObjectsUsingBlock

Robert Payne robertpayne at me.com
Sun Feb 13 09:31:39 PST 2011


Hi Jonathan,

The syntax looks good and it works on my end. Are you using a nightly of MacRuby or the 0.8 trunk?

a = [0,1,2,3,4]
puts "#{a}"
a.enumerateObjectsUsingBlock(Proc.new{|object, index, stop|
	puts "object: #{object}"
})

On 14/02/2011, at 5:55 AM, Jonathan Waddilove wrote:

> Hi, another MacRuby 0.9 question...
> 
> I've been trying to use lambda and/or Proc.new to provide callback blocks (as suggested in Matt's excellent draft book). Again I have seen discussions about problems in this area and for me all the suggested variants of code fail.
> 
> Here's a snip of failing code:
> 
> #!/usr/local/bin/macruby
> puts "Ruby Version: #{RUBY_VERSION}, MacRuby Version: #{MACRUBY_VERSION}"
> 
> a = [1, 2, 3, 4, 5,]
> 
> a.enumerateObjectsUsingBlock(Proc.new {|obj, index, stop|
> 	  puts "I'll bet this never displays"
> 	  })
> 	
> and here's the resulting crash...
> 
> Any suggestions?  many thanks,  Jonathan
> 
> 
> Process:         macruby [23078]
> Path:            /Library/Frameworks/MacRuby.framework/Versions/0.8/usr/bin/macruby
> Identifier:      macruby
> Version:         ??? (???)
> Code Type:       X86-64 (Native)
> Parent Process:  ruby [23074]
> 
> Date/Time:       2011-02-13 16:50:33.806 +0000
> OS Version:      Mac OS X 10.6.6 (10J567)
> Report Version:  6
> 
> Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
> Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000000
> Crashed Thread:  0  Dispatch queue: com.apple.main-thread
> 
> Application Specific Information:
> objc[23078]: garbage collection is ON
> 
> Thread 0 Crashed:  Dispatch queue: com.apple.main-thread
> 0   ???                           	000000000000000000 0 + 0
> 1   ???                           	0x0000000102d63ac6 0 + 4342561478
> 2   libmacruby.dylib              	0x000000010014a0b3 rb_vm_dispatch + 1331
> 3   ???                           	0x0000000102d5a536 0 + 4342523190
> 4   ???                           	0x0000000102d63806 0 + 4342560774
> 5   libmacruby.dylib              	0x0000000100162d53 rb_vm_run + 531
> 6   libmacruby.dylib              	0x00000001000408f0 ruby_run_node + 80
> 7   macruby                       	0x0000000100000d28 main + 152
> 8   macruby                       	0x0000000100000c88 start + 52
> 
> Thread 1:
> 0   libSystem.B.dylib             	0x00007fff88fe5f8a __workq_kernreturn + 10
> 1   libSystem.B.dylib             	0x00007fff88fe639c _pthread_wqthread + 917
> 2   libSystem.B.dylib             	0x00007fff88fe6005 start_wqthread + 13
> 
> Thread 0 crashed with X86 Thread State (64-bit):
>  rax: 0x00007fff5fbfddc0  rbx: 0x0000000000000000  rcx: 0x00007fff5fbfdf0f  rdx: 0x0000000000000000
>  rdi: 0x00000002000bed00  rsi: 0x00000002000bec00  rbp: 0x00007fff5fbfdf40  rsp: 0x00007fff5fbfdcf8
>   r8: 0x0000000200000000   r9: 0x0000000000000005  r10: 0x0000000000000001  r11: 0x0000000100af9000
>  r12: 0x00000002000bec00  r13: 0x0000000000000000  r14: 0x0000000000000005  r15: 0x0000000000000000
>  rip: 0x0000000000000000  rfl: 0x0000000000010246  cr2: 0x0000000000000000
> 
> Binary Images:
>       0x100000000 -        0x100000ff7 +macruby ??? (???) <4408616F-9F77-025F-C278-91F945728AB0> /usr/local/bin/macruby
>       0x100003000 -        0x100a29fd7 +libmacruby.dylib 0.8.0 (compatibility 0.8.0) <8910242D-90F3-32AC-A4CA-99D5C316AEB8> /Library/Frameworks/MacRuby.framework/Versions/0.8/usr/lib/libmacruby.dylib
>    0x7fff5fc00000 -     0x7fff5fc3bdef  dyld 132.1 (???) <486E6C61-1197-CC7C-2197-82CE505102D7> /usr/lib/dyld
>    0x7fff801f1000 -     0x7fff802aafff  libsqlite3.dylib 9.6.0 (compatibility 9.0.0) <2C5ED312-E646-9ADE-73A9-6199A2A43150> /usr/lib/libsqlite3.dylib
>    0x7fff802ba000 -     0x7fff80478fff  libicucore.A.dylib 40.0.0 (compatibility 1.0.0) <781E7B63-2AD0-E9BA-927C-4521DB616D02> /usr/lib/libicucore.A.dylib
>    0x7fff809d0000 -     0x7fff80a8dff7  com.apple.CoreServices.OSServices 357 (357) <7B22626F-D544-1955-CC53-240F4CACEB4A> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/OSServices.framework/Versions/A/OSServices
>    0x7fff815d5000 -     0x7fff815ebfef  libbsm.0.dylib ??? (???) <42D3023A-A1F7-4121-6417-FCC6B51B3E90> /usr/lib/libbsm.0.dylib
>    0x7fff817b9000 -     0x7fff817bdff7  libmathCommon.A.dylib 315.0.0 (compatibility 1.0.0) <95718673-FEEE-B6ED-B127-BCDBDB60D4E5> /usr/lib/system/libmathCommon.A.dylib
>    0x7fff81cbb000 -     0x7fff81d05ff7  com.apple.Metadata 10.6.3 (507.15) <5170FCE0-ED6C-2E3E-AB28-1DDE3F628FC5> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/Metadata.framework/Versions/A/Metadata
>    0x7fff8208d000 -     0x7fff82310ff7  com.apple.Foundation 6.6.4 (751.42) <AF1E3050-3503-8714-8274-EA6BD6BE8A22> /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation
>    0x7fff82318000 -     0x7fff82340fff  com.apple.DictionaryServices 1.1.2 (1.1.2) <E9269069-93FA-2B71-F9BA-FDDD23C4A65E> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/DictionaryServices.framework/Versions/A/DictionaryServices
>    0x7fff8234d000 -     0x7fff8234dff7  com.apple.CoreServices 44 (44) <DC7400FB-851E-7B8A-5BF6-6F50094302FB> /System/Library/Frameworks/CoreServices.framework/Versions/A/CoreServices
>    0x7fff8353c000 -     0x7fff83588fff  libauto.dylib ??? (???) <F7221B46-DC4F-3153-CE61-7F52C8C293CF> /usr/lib/libauto.dylib
>    0x7fff83ecb000 -     0x7fff83ed9ff7  libkxld.dylib ??? (???) <27713C39-0E51-8F5A-877B-C5539C96A520> /usr/lib/system/libkxld.dylib
>    0x7fff8400d000 -     0x7fff84184fe7  com.apple.CoreFoundation 6.6.4 (550.42) <770C572A-CF70-168F-F43C-242B9114FCB5> /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation
>    0x7fff85109000 -     0x7fff85144fff  com.apple.AE 496.4 (496.4) <55AAD5CA-7160-7899-1C68-562ED8160DF7> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/AE.framework/Versions/A/AE
>    0x7fff8532d000 -     0x7fff853bdfff  com.apple.SearchKit 1.3.0 (1.3.0) <4175DC31-1506-228A-08FD-C704AC9DF642> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/SearchKit.framework/Versions/A/SearchKit
>    0x7fff85405000 -     0x7fff85416ff7  libz.1.dylib 1.2.3 (compatibility 1.0.0) <97019C74-161A-3488-41EC-A6CA8738418C> /usr/lib/libz.1.dylib
>    0x7fff8688b000 -     0x7fff869a2fef  libxml2.2.dylib 10.3.0 (compatibility 10.0.0) <B2FB9DA8-6EC9-FFBC-C919-C022B9CBEB73> /usr/lib/libxml2.2.dylib
>    0x7fff86a93000 -     0x7fff86af3fe7  com.apple.framework.IOKit 2.0 (???) <D107CB8A-5182-3AC4-35D0-07068A695C05> /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit
>    0x7fff874bc000 -     0x7fff87539fef  libstdc++.6.dylib 7.9.0 (compatibility 7.0.0) <35ECA411-2C08-FD7D-11B1-1B7A04921A5C> /usr/lib/libstdc++.6.dylib
>    0x7fff87940000 -     0x7fff87a12fe7  com.apple.CFNetwork 454.11.5 (454.11.5) <5D68598D-C138-C8B6-B6AC-B1F48B01E021> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CFNetwork.framework/Versions/A/CFNetwork
>    0x7fff8810b000 -     0x7fff881abfff  com.apple.LaunchServices 362.2 (362.2) <A8EDC37C-1D40-5ED0-49BE-90EF110A6B3A> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchServices.framework/Versions/A/LaunchServices
>    0x7fff88462000 -     0x7fff886e8fff  com.apple.security 6.1.1 (37594) <1B4E1ABD-1BB3-DA49-F574-0EEB23E73C6A> /System/Library/Frameworks/Security.framework/Versions/A/Security
>    0x7fff886ea000 -     0x7fff886f9fff  com.apple.NetFS 3.2.1 (3.2.1) <E5D33870-27D2-E50B-9B35-16AA50369733> /System/Library/Frameworks/NetFS.framework/Versions/A/NetFS
>    0x7fff88806000 -     0x7fff88b3afff  com.apple.CoreServices.CarbonCore 861.23 (861.23) <96465459-6536-3FD7-7504-B59D0390EEC5> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CarbonCore.framework/Versions/A/CarbonCore
>    0x7fff88bcb000 -     0x7fff88c81fff  libobjc.A.dylib 227.0.0 (compatibility 1.0.0) <99CB3A0F-64CF-1D16-70CD-8AED2EF06C30> /usr/lib/libobjc.A.dylib
>    0x7fff88e3d000 -     0x7fff88e7efff  com.apple.SystemConfiguration 1.10.5 (1.10.2) <FB39F09C-57BB-D8CC-348D-93E00C602F7D> /System/Library/Frameworks/SystemConfiguration.framework/Versions/A/SystemConfiguration
>    0x7fff88e7f000 -     0x7fff88e85ff7  com.apple.DiskArbitration 2.3 (2.3) <857F6E43-1EF4-7D53-351B-10DE0A8F992A> /System/Library/Frameworks/DiskArbitration.framework/Versions/A/DiskArbitration
>    0x7fff88f93000 -     0x7fff88fbeff7  libxslt.1.dylib 3.24.0 (compatibility 3.0.0) <87A0B228-B24A-C426-C3FB-B40D7258DD49> /usr/lib/libxslt.1.dylib
>    0x7fff88fcb000 -     0x7fff8918cfff  libSystem.B.dylib 125.2.1 (compatibility 1.0.0) <F00A8B2F-84A0-0868-1047-3A13F9114864> /usr/lib/libSystem.B.dylib
>    0x7fffffe00000 -     0x7fffffe01fff  libSystem.B.dylib ??? (???) <F00A8B2F-84A0-0868-1047-3A13F9114864> /usr/lib/libSystem.B.dylib
> 
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