#269: Calling a method on a pointer passed to a KVC validation method fails --------------------------------+------------------------------------------- Reporter: mikael@… | Owner: lsansonetti@… Type: defect | Status: new Priority: major | Milestone: Component: MacRuby | Keywords: kvc pointer crash --------------------------------+------------------------------------------- If I define a -validate<Key>:error: method in the class used as an NSArrayController's class, any method call on any parameter causes a crash. == Steps to reproduce: == Create a new MacRuby project. Place a table view and a button in the main window. Instantiate a new NSArrayController. Set the class of the array controller to SomeModel, with the key someKey. Bind the table view's single column's value to the array controller's arrangedObject.someKey key path, and check Validates Immediately. Set the button's target to be the array controller, action add:. Create a new Ruby file in the project. Here's the code: {{{ #encoding: utf-8 class SomeModel attr_accessor :someKey def validateSomeKey someKeyPointer, error: errorPointer NSLog "Validating someKey." someKeyPointer.nil? # This is where the program crashes. return true end end }}} Launch the application, add a new row, try to change its someKey. When you press enter, it crashes. Attached is the backtrace I get from GDB. -- Ticket URL: <http://www.macruby.org/trac/ticket/269> MacRuby <http://macruby.org/>