Revision: 3074 http://trac.macosforge.org/projects/ruby/changeset/3074 Author: emoy@apple.com Date: 2009-12-03 18:40:54 -0800 (Thu, 03 Dec 2009) Log Message: ----------- Fix crash: macruby -e 'NSArray.arrayWithObject("a").addObject("b")' due to backtrace failing, and returning Qnil, which was previous passed to RSTRING_PTR. Modified Paths: -------------- MacRuby/trunk/vm.cpp Modified: MacRuby/trunk/vm.cpp =================================================================== --- MacRuby/trunk/vm.cpp 2009-12-03 11:07:07 UTC (rev 3073) +++ MacRuby/trunk/vm.cpp 2009-12-04 02:40:54 UTC (rev 3074) @@ -3573,7 +3573,7 @@ VALUE bt = rb_vm_call(exc, sel_registerName("backtrace"), 0, NULL, false); - const long count = RARRAY_LEN(bt); + const long count = (bt != Qnil ? RARRAY_LEN(bt) : 0); if (count > 0) { for (long i = 0; i < count; i++) { const char *bte = RSTRING_PTR(RARRAY_AT(bt, i));