Re: [MacRuby-devel] [MacRuby] #529: Using a Proc as a ‘callback function’

30 Dec 2009

      #529: Using a Proc as a ‘callback function’
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 Reporter:  eloy.de.enige@…          |       Owner:  lsansonetti@…        
     Type:  defect                   |      Status:  new                  
 Priority:  blocker                  |   Milestone:                       
Component:  MacRuby                  |    Keywords:                       
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Comment(by eloy.de.enige@…):

 Actually, the latter examples should probably be more like:

 {{{
 describe "BridgeSupport, where a pointer to a callback function is
 required" do
   it "allows the use of a proc as callback" do
     array = [5, 3, 2, 4, 1]
     proc = Proc.new { |x, y, _| x <=> y }

     array.sortUsingFunction(proc, context: nil)
     array.should == [1, 2, 3, 4, 5]
   end

   it "passes the actual objects as arguments instead of the pointers to
 the arguments" do
     result = ''
     proc = Proc.new { |_, __, context| result = context }
     [1].sortUsingFunction(proc, context: 'foo')
     result.should == 'foo'
   end
 end
 }}}

-- 
Ticket URL: <http://www.macruby.org/trac/ticket/529#comment:1>
MacRuby <http://macruby.org/>