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On Oct 17, 2011, at 2:26 PM, Igor Evsukov <igor.evsu...@gmail.com> wrote: > Hi Henry, > >> This doesn't explain why MacRuby can't be implemented with ARC rather than >> relying on the OBJ-C 2 garbage collector. > Do You know what the difference between Garbage Collection and Reference > Counting? > Igor, I forgot to point out that ARC and GC are not the same thing. They have very different functions. Again, ARC happens at compile time and GC happens at runtime. Thus, I would highly recommend taking a look at the WWDC 2011 videos which go into further depth on this subject. Finally, ARC is supported in Xcode 4.2. Good luck, -Conrad > Current MacRuby VM implementation heavily depends on presence of GC. > Potentially You could modify it to use ARC instead. The question is how much > time do you need to spent on it and how you plan to support C extensions? > > Again, please, watch the end of Joshua Ballanco talk at BostonRB ( > http://bostonrb.org/presentations/macruby-what-is-it-and-why-should-i-care-part-1 > ) when he talk about issues of porting MacRuby to iOS. It isn't an issue to > move MacRuby to it's own GC, there even was some efforts to do it > https://github.com/takuma104/iphone-macruby > > On 17 окт. 2011, at 23:28, Henry Maddocks wrote: > >> >> On 17/10/2011, at 7:11 PM, Igor Evsukov wrote: >> >>> Hi Henry, >>> >>>>> And it's impossible to make Ruby to use ARC. >>>> >>>> Why? >>> For memory management Objective-C uses a paradigm called "reference >>> counting". >> >> ... >> >>> In Ruby we have garbage collector which is acts in whole different way >> >> I understand all this. But I'm not asking about _Ruby_, I'm asking about the >> MacRuby OBJ-C implementation of the Ruby language. >> >>> So, basically, ARC and GC are two conceptually different things which are >>> even not replaceable by each other(circular references). >> >> This doesn't explain why MacRuby can't be implemented with ARC rather than >> relying on the OBJ-C 2 garbage collector. >> >> Henry >> >> _______________________________________________ >> MacRuby-devel mailing list >> MacRuby-devel@lists.macosforge.org >> http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel > > _______________________________________________ > MacRuby-devel mailing list > MacRuby-devel@lists.macosforge.org > http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
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