Hi, Thanks for ticket and simplify the code. For a while I'll use class_eval to define a method which require KVC compliant.
2011/3/11 Thibault Martin-Lagardette <thibault...@gmail.com>: > Hi, > After fiddling a little bit with the code, I could not find the exact issue, > but could reduce the code a lot. > For the sake of it, I opened a Trac ticket with the reduced > code: https://www.macruby.org/trac/ticket/1188 > Cheers, > -- > Thibault Martin-Lagardette > > On Thursday, March 10, 2011 at 13:59, kyossi wrote: > > Hi, > > I'm plan to add some functionality to existing attr_accessor. > I've started with re-implement attr_accessor with same functionality, > but when I implement it by define_method, it failed with Segmentation > fault when I call valueForKey(:key). > > Am i doing wrong with class Base2??, > > The Code is > > #utility > class String > #upcase first char. "foo".upcaseFirstChar => "Foo" > def upcaseFirstChar > self[0].upcase + self[-self.size+1, self.size-1] > end > end > > #implement of my_attr_accessor with evaluate string. works fine > class Base > def self.my_attr_accessor(sym) > class_eval %{ > def #{sym} > @#{sym} > end > > def set#{sym.to_s.upcaseFirstChar}(val) > @#{sym} = val > end > }} > end > end > > class MyClass < Base > my_attr_accessor :foo > end > > > obj = MyClass.new > obj.setFoo(3) > p obj.foo #=>3 > p obj.valueForKey(:foo) #=>3 > > #another implement of my_attr_accessor > class Base2 > def self.my_attr_accessor(sym) > define_method(sym) do > instance__variable_get("@#{sym}") > end > > define_method("set#{sym.to_s.upcaseFirstChar}") do |val| > instance_variable_set("@#{sym}", val) > end > end > end > > class MyClass2 < Base2 > my_attr_accessor :foo > end > > obj2 = MyClass2.new > obj2.setFoo(7) > p obj2.foo #=>7 > p obj2.valueForKey(:foo) #=> Segmentation fault > > > ===================== > $ macruby my_attr_accessor.rb > 3 > 3 > 7 > Segmentation fault > _______________________________________________ > 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 > > _______________________________________________ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
