June 2009 - MacRuby-devel - lists.macosforge.org

Setting Breakpoints/Debugger
by Giampiero De Ciantis 22 Jun '09

22 Jun '09

Am I doing something wrong or is there no way to set breakpoints in MacRuby using Xcode?

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experimental branch: status update
by Laurent Sansonetti 21 Jun '09

21 Jun '09

Yet another status update on the experimental branch work! Highlights are: - More Ruby & Cocoa compatibility work. All samples should now run on experimental on both 10.5 and 10.6. Rake and HotCocoa are now somewhat usable (but not at 100% yet). - Floating-point arithmetic optimization (see below for more info). Detailed changes: - Fixed #method_missing to omit the trailing ':' in case the method only accepts one argument. - Fixed a bug in the dispatcher, where #method_missing was sometimes called instead of raising a ArgumentError exception. - Fixed misc bugs in the following methods: ObjectSpace#_id2ref, ObjectSpace#define_finalizer, ObjectSpace#each_object, Float.induced_from, IO#close_on_exec, IO#reopen, IO#readpartial, IO.copy_stream, IO#lineno, IO#lineno=, IO#print, IO#tty?, File.expand_path, File.join, Proc#binding - Added support for overwriting an Objective-C method that accepts a C pointer. - Added support in the dispatcher for objects using -[NSObject forwardInvocation:]. - Fixed a bug in the allocation of pure Ruby objects, that weren't marked as objects by the GC. - Fixed lots of IO bugs. More importantly, IO finalizers are now called by the GC. - Added a very basic implementation for #define_method. - Fixed a silly bug in #class_eval or #module_eval when the VM wasn't properly handling the current class. - Fixed a constant lookup bug in the way we mark metaclass outers. - Fixed a critical memory crasher when trying to re-allocate out-of- scope block locals. - Fixed the creation of Binding objects to that they include block locals. - Fixed a bug when promoting ivars used inside an eval string for slot- based optimization. - Added support for automatic Boxed/Array conversion to a C pointer. - Added the following methods to the Boxed class: #to_a, #[], #[]= - Fixed a bug in #undef_method which wasn't working on >0 arity selectors. - Optimized the call to #default in Hash#[]. - Fixed a performance problem when preparing blocks: the same block LLVM function was sometimes optimized and JIT'ed more than once. - Merged with RubySpec upstream twice. More importantly, FFI specs are now available. - Merged stdlib from trunk. - Added a macruby_select(1) tool, that allows you to run a given expression on a given MacRuby version. - Optimized a few code paths in HotCocoa::Graphics to use Boxed types instead of Array objects. - Added a live demo for HotCocoa::Graphics. You can run it by doing the following: $ cd sample-macruby/HotCocoa/graphics $ macruby demo.rb Note that performance work is still under work. - Implemented Symbol#to_proc. - Fixed a bug when re-entrantly calling a block. - Added an optimization regarding floating point types. Firstly, floats are now immediate objects (like Fixnums) and not true objects anymore, which means we don't need to allocate extra memory in order to create a float. This is great for us because our memory allocator is slow, so we are able to do efficient floating point handling. The downside is that we lose 2 bits of precision, but some early tests revealed that this is a minor issue and we can still box edge cases as before. Secondly, the compiler is now generating optimized code when dealing with floating point arithmetic expressions, exactly like we currently optimize Fixnum arithmetic. This is a very important change for MacRuby, because floats are used thoroughly in Cocoa. As instance, in drawing methods, or when dealing with NSPoint/Size/Rect structures, etc. A simple benchmark looping on a float. $ time macruby_select 0.4 -e "i=0.0; while i<10000000; i+=1; end" real 0m8.239s user 0m12.182s sys 0m0.537s $ time macruby_select 0.5 -e "i=0.0; while i<10000000; i+=1; end" real 0m0.340s user 0m0.264s sys 0m0.072s A second one, using an NSPoint structure. $ time macruby_select 0.4 -e 'framework "Foundation"; p=NSPoint.new(1,2); i=0; while i<5000000; p.x=i; i+=1; end' real 0m9.636s user 0m13.762s sys 0m0.612s $ time macruby_select 0.5 -e 'framework "Foundation"; p=NSPoint.new(1,2); i=0; while i<5000000; p.x=i; i+=1; end' real 0m0.897s user 0m0.820s sys 0m0.081s Also, I profited of this change to optimize a little bit more Fixnum arithmetic. Here are numbers for the old miniruby vs the new one regarding fib(40). $ time ./miniruby_old fib.rb 40 102334155 real 0m3.978s user 0m3.840s sys 0m0.064s $ time ./miniruby fib.rb 40 102334155 real 0m3.282s user 0m3.179s sys 0m0.057s Our next goal is to be able to fully run Rake and HotCocoa, to ultimately start planning the merge of the experimental branch into trunk. Laurent

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MacRuby Document-based Application template in XCode?
by Paul Howson 18 Jun '09

18 Jun '09

Hi, When using Objective-C, XCode provides you with a template for a "Cocoa Document-based Application". For MacRuby we so far have in XCode only "MacRuby Application" and "MacRuby Core Data Application". Would it work to take a new MacRuby Application and copy across the relevant bits from a new Cocoa Document-based Application in order to make a MacRuby Document-based Application? Is it that simple, or are there other gotchas I need to know about? Paul Howson Queensland Australia

5 6

DRb problem (MacRuby 0.4)
by Igor Anić 16 Jun '09

16 Jun '09

I have a strange problem while trying to communicate from macruby to running drb process. Only one request is passing, on second I'm getting error. I tested same simple code in ruby 1.9.1 and Ruby 1.8.6 and there all works ok. Server can be run with any version of Ruby, and everything works except when client is running with macruby. Here is the sample code for client and server to reproduce error. Sample server, returns new value for each call on increment: ------------------------ require 'drb' class Incrementer def initialize @value = 0 end def increment @value += 1 end end service = DRb.start_service("druby://localhost:4242", Incrementer.new) print "service started on port 4242\n" DRb.thread.join ------------------------ Sample client, displays server value: ------------------------ require 'drb' DRb.start_service server = DRbObject.new_with_uri('druby://localhost:4242') p server.increment #this line, works as expected p server.increment #this line raises error ------------------------ And the error is: ------------------------ /Library/Frameworks/MacRuby.framework/Versions/0.4/usr/lib/ruby/1.9.1/ drb/drb.rb:961: [BUG] destination 0x7fff5fbfbe48 isn't in the auto zone MacRuby version 0.4 (ruby 1.9.1) [universal-darwin9.0, x86_64] -- stack frame ------------ 0000 (0xc08000060): 00000004 0001 (0xc08000068): 00000000 0002 (0xc08000070): 00000004 0003 (0xc08000078): 00000000 0004 (0xc08000080): 8000c7de0 0005 (0xc08000088): 00000004 0006 (0xc08000090): 00000000 0007 (0xc08000098): 00000004 0008 (0xc080000a0): 100397ad0 0009 (0xc080000a8): 00000004 0010 (0xc080000b0): 00000000 0011 (0xc080000b8): 8000c7de0 0012 (0xc080000c0): 100397ad0 0013 (0xc080000c8): 8000d58a0 0014 (0xc080000d0): 00000004 0015 (0xc080000d8): 00000004 0016 (0xc080000e0): 00000004 0017 (0xc080000e8): 00000004 0018 (0xc080000f0): 00000004 0019 (0xc080000f8): 00000004 0020 (0xc08000100): 00000000 0021 (0xc08000108): 1003a7830 0022 (0xc08000110): 800316c80 0023 (0xc08000118): 00000004 0024 (0xc08000120): 00000004 0025 (0xc08000128): 00000004 0026 (0xc08000130): c080ffe58 0027 (0xc08000138): 00000004 0028 (0xc08000140): c08000100 (= 20) 0029 (0xc08000148): 1003ae6d0 0030 (0xc08000150): 800316c80 0031 (0xc08000158): 00000004 0032 (0xc08000160): 00000004 0033 (0xc08000168): 00000004 0034 (0xc08000170): 00000004 0035 (0xc08000178): c080ffd78 0036 (0xc08000180): 800388240 0037 (0xc08000188): 00000004 0038 (0xc08000190): c080ffd08 0039 (0xc08000198): 8000d5280 0040 (0xc080001a0): 00000004 0041 (0xc080001a8): c08000178 (= 35) 0042 (0xc080001b0): 800314c60 0043 (0xc080001b8): 00000004 0044 (0xc080001c0): c080ffc28 0045 (0xc080001c8): 8000e03c0 0046 (0xc080001d0): 00000004 0047 (0xc080001d8): c080001a8 (= 41) 0048 (0xc080001e0): 8000e03c0 0049 (0xc080001e8): 00000004 0050 (0xc080001f0): 00000000 0051 (0xc080001f8): 800311f60 0052 (0xc08000200): 00000004 0053 (0xc08000208): 00000000 0054 (0xc08000210): 10035afe0 0055 (0xc08000218): 8000d52c0 0056 (0xc08000220): 00000004 0057 (0xc08000228): 00000004 0058 (0xc08000230): 00000001 0059 (0xc08000238): 00000004 0060 (0xc08000240): 00000000 <- lfp <- dfp -- control frame ---------- c:0016 p:---- s:0061 b:0061 l:000060 d:000060 CFUNC :select c:0015 p:0030 s:0054 b:0054 l:000053 d:000053 METHOD /Library/ Frameworks/MacRuby.framework/Versions/0.4/usr/lib/ruby/1.9.1/drb/ drb.rb:961 c:0014 p:0017 s:0051 b:0051 l:000050 d:000050 METHOD /Library/ Frameworks/MacRuby.framework/Versions/0.4/usr/lib/ruby/1.9.1/drb/ drb.rb:1212 c:0013 p:0036 s:0048 b:0048 l:000035 d:000047 BLOCK /Library/ Frameworks/MacRuby.framework/Versions/0.4/usr/lib/ruby/1.9.1/drb/ drb.rb:1168 c:0012 p:---- s:0047 b:0047 l:000046 d:000046 FINISH :method_added: c:0011 p:---- s:0045 b:0045 l:000044 d:000044 CFUNC :each c:0010 p:0013 s:0042 b:0042 l:000035 d:000041 BLOCK /Library/ Frameworks/MacRuby.framework/Versions/0.4/usr/lib/ruby/1.9.1/drb/ drb.rb:1166 c:0009 p:0011 s:0039 b:0039 l:000038 d:000038 METHOD prelude.rb:8 c:0008 p:0011 s:0036 b:0036 l:000035 d:000035 METHOD /Library/ Frameworks/MacRuby.framework/Versions/0.4/usr/lib/ruby/1.9.1/drb/ drb.rb:1163 c:0007 p:0015 s:0029 b:0029 l:000020 d:000028 BLOCK /Library/ Frameworks/MacRuby.framework/Versions/0.4/usr/lib/ruby/1.9.1/drb/ drb.rb:1092 c:0006 p:0026 s:0027 b:0027 l:000026 d:000026 METHOD /Library/ Frameworks/MacRuby.framework/Versions/0.4/usr/lib/ruby/1.9.1/drb/ drb.rb:1110 c:0005 p:0090 s:0021 b:0021 l:000020 d:000020 METHOD /Library/ Frameworks/MacRuby.framework/Versions/0.4/usr/lib/ruby/1.9.1/drb/ drb.rb:1091 c:0004 p:---- s:0011 b:0011 l:000010 d:000010 FINISH :p c:0003 p:0066 s:0009 b:0007 l:000006 d:000006 TOP test_client.rb:6 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> : "/Library/Frameworks/MacRuby.framework/Versions/0.4/usr/lib/ ruby/1.9.1/drb/drb.rb:961:in `select'" DBG> : "/Library/Frameworks/MacRuby.framework/Versions/0.4/usr/lib/ ruby/1.9.1/drb/drb.rb:961:in `alive?'" DBG> : "/Library/Frameworks/MacRuby.framework/Versions/0.4/usr/lib/ ruby/1.9.1/drb/drb.rb:1212:in `alive?'" DBG> : "/Library/Frameworks/MacRuby.framework/Versions/0.4/usr/lib/ ruby/1.9.1/drb/drb.rb:1168:in `block (2 levels) in open'" DBG> : "/Library/Frameworks/MacRuby.framework/Versions/0.4/usr/lib/ ruby/1.9.1/drb/drb.rb:1166:in `each'" DBG> : "/Library/Frameworks/MacRuby.framework/Versions/0.4/usr/lib/ ruby/1.9.1/drb/drb.rb:1166:in `block in open'" DBG> : "prelude.rb:8:in `synchronize'" DBG> : "/Library/Frameworks/MacRuby.framework/Versions/0.4/usr/lib/ ruby/1.9.1/drb/drb.rb:1163:in `open'" DBG> : "/Library/Frameworks/MacRuby.framework/Versions/0.4/usr/lib/ ruby/1.9.1/drb/drb.rb:1092:in `block in method_missing'" DBG> : "/Library/Frameworks/MacRuby.framework/Versions/0.4/usr/lib/ ruby/1.9.1/drb/drb.rb:1110:in `with_friend'" DBG> : "/Library/Frameworks/MacRuby.framework/Versions/0.4/usr/lib/ ruby/1.9.1/drb/drb.rb:1091:in `method_missing'" DBG> : "test_client.rb:6:in `<main>'" -- backtrace of native function call (Use addr2line) -- 0x10010f2c1 0x100029334 0x100029418 0x10003be45 0x10011043c 0x1000469fc 0x10010ada7 0x10010074f 0x1001056e2 0x10010d4a2 0x1000071c7 0x10010ada7 0x10010074f 0x1001056e2 0x100106c0a 0x10010719a 0x100109d2e 0x10010ac93 0x10010074f 0x1001056e2 0x10010596c 0x10002cd32 0x1000300f7 0x100000f1f 0x100000ea4 0x2 ------------------------------------------------------- Abort trap Thanks in advance for any help on this. Igor.

1 0

[MacRuby] #285: File.join broken/inconsistent with MRI
by MacRuby 14 Jun '09

14 Jun '09

#285: File.join broken/inconsistent with MRI --------------------------------+------------------------------------------- Reporter: rfwatson@… | Owner: lsansonetti@… Type: defect | Status: new Priority: blocker | Milestone: Component: MacRuby | Keywords: --------------------------------+------------------------------------------- In MRI: File.join("/Users/", "/me") => "/Users/me" In macruby: File.join("/Users/", "/me") => "/Users///me" -- Ticket URL: <http://www.macruby.org/trac/ticket/285> MacRuby <http://macruby.org/>

1 1

Re: [MacRuby-devel] Low-ish level MacRuby interaction
by Scott Thompson 12 Jun '09

12 Jun '09

On Jun 10, 2009, at 6:01 PM, Laurent Sansonetti wrote: > Hi Scott! > > Here is a code snippet that hijacks stdout using an NSPipe. The idea > is to first initialize the MacRuby VM (so that the standard > descriptor objects are created), then use dup2(2), then evaluate > your Ruby expressions. > <Code snipped for brevity> I appreciate you taking the time to type that in. This is basically the solution that I came up with. The problem with this solution (if I'm understanding what is going on correctly) is that the output that goes through the pipe is buffered while the output that usually goes to the controlling terminal is not. The result is that if the ruby script does not produce "enough" output, the reading end of the pipe never sees it. If the ruby code actually flushes the stream (or someone closes the pipe, which I gather also ends the stream) then the output makes it all the way, but if both my application and code on the Ruby side keep the pipe alive, it's possible for the ruby side to leave things in the pipe. Is it possible to create or set up the ends of the pipe to be un- buffered? Scott

2 3

Re: [MacRuby-devel] SnowLeopard: Macruby 0.4 macirb crash
by Jonathan Waddilove 12 Jun '09

12 Jun '09

OK, thanks for all the comments. I'll move any new SL questions to the Dev Forums. However, for what it's worth. I have now been able to build & install the experimental branch on SL. There was only one snag... I had to remove .gem/macruby/1.9.1/bin from my path in order to get rake to run. thanks, Jonathan

3 2

Low-ish level MacRuby interaction
by Scott Thompson 11 Jun '09

11 Jun '09

Howdy folks, I'm working with MacRuby as it evolves and I've been enjoying it quite a lot. I'm trying to make use of the system in an unusual way and not having much luck. I thought I would post here and see if anyone has suggestions. What I'm trying to do is use MacRuby as an embedded scripting language. Using the framework and the Objective-C interface this is REALLY straightforward and easy. What I'd like to do, however, is divorce the MacRuby standard streams (stdout, stdio, stderr) so that I can control them myself. I was able to do this in a rather straightforward fashion from the Ruby side by, for example, reopening STDOUT on the write end of an NSPipe that I create myself. The issue I've run into is that the NSPipe doesn't appear to grab the output from Ruby in the same way that original STDOUT does. I've been reading a lot and I gather that the difference may have something to do with having STDOUT attached to a "controlling terminal" vs. going to the pipe. I've been swimming around in a world of pseudo terminals and pipes and lots of UNIX-ish stuff that, while it is teaching me a lot, is not getting me much closer to my goal. So, my question is can anyone suggest the "best" way I might be able to hijack the standard streams that are being used by the Ruby runtime so that I can forward ruby output to my own code? Scott

2 1

Re: [MacRuby-devel] SnowLeopard: Macruby 0.4 macirb crash
by Jonathan Waddilove 10 Jun '09

10 Jun '09

Rich, Thanks, I'll try 0.5 again and see how I do. regards, Jonathan

4 3

SnowLeopard: Macruby 0.4 macirb crash
by Jonathan Waddilove 10 Jun '09

10 Jun '09

Should we expect MacRuby 0.4 to work under the SnowLeopard beta? I'm seeing crashes in both macirb and magem (see below). I've also tried 0.5 branch and that has crashes as well. (hope you're all enjoying WWDC) Crashes MacIrb: /Library/Frameworks/MacRuby.framework/Versions/0.4/usr/bin/macruby: [BUG] get_dyna_var_idx: -1 MacRuby version 0.4 (ruby 1.9.1) [universal-darwin9.5, x86_64] -- stack frame ------------ 0000 (0x302000060): 00000004 0001 (0x302000068): 00000000 0002 (0x302000070): 00000004 0003 (0x302000078): 00000000 <- lfp <- dfp -- control frame ---------- c:0002 p:-1073820580 s:0004 b:0004 l:000003 d:000003 TOP c:0001 p:0000 s:0002 b:0002 l:000001 d:000001 TOP --------------------------- -- backtrace of native function call (Use addr2line) -- 0x10010f301 0x100029544 0x100029628 0x1000e3cee 0x1000e867b 0x1000ecab1 0x1000e9685 0x1000e6b66 0x1000edcfb 0x1000f1a25 0x1000f1a84 0x1000f1be5 0x100126cbb 0x1000bfadb 0x1000f83df 0x1000bf250 0x10002fa65 0x100000f17 0x100000ea4 ------------------------------------------------------- Abort trap And for MacGem List /Library/Frameworks/MacRuby.framework/Versions/0.4/usr/bin/macruby: [BUG] arg_rest: -1 MacRuby version 0.4 (ruby 1.9.1) [universal-darwin9.5, x86_64] -- stack frame ------------ 0000 (0x302000060): 00000004 0001 (0x302000068): 00000000 0002 (0x302000070): 00000004 0003 (0x302000078): 00000000 <- lfp <- dfp -- control frame ---------- c:0002 p:-1073811520 s:0004 b:0004 l:000003 d:000003 TOP c:0001 p:0000 s:0002 b:0002 l:000001 d:000001 TOP --------------------------- -- backtrace of native function call (Use addr2line) -- 0x10010f301 0x100029544 0x100029628 0x1000ee1c6 0x1000f1a25 0x1000f1a84 0x1000e7ddb 0x1000e6b66 0x1000ee01d 0x1000f1a25 0x1000f1a84 0x1000e7945 0x1000e6b66 0x1000eab42 0x1000e6b66 0x1000edcfb 0x1000f1a25 0x1000f1a84 0x1000f1be5 0x100126cbb 0x1000bfadb 0x1000f83df 0x1000bf250 0x10002fa65 0x100000f17 0x100000ea4 0x3 ------------------------------------------------------- Abort trap regards, Jonathan

2 1