TypeError: unrecognized runtime type when using NSThread.alloc.initWithTarget

[mattaimonetti@…]

>> framework 'Foundation'
=> true
>> thread = NSThread.alloc.initWithTarget(self, selector:'sleep:', object:'5')
TypeError: unrecognized runtime type `'

Doing:

framework 'Foundation'

class ExpensiveCalculation
  def start(to_process)
    puts "processing on a separate thread"
    exit
  end
end

calculation = ExpensiveCalculation.new
thread = NSThread.alloc.initWithTarget(calculation, selector:'start:', object:'dummy_obj')
thread.start

Works fine tho.

[lsansonetti@…]

The problem was when re-typing the method. The problem should be fixed in r3955.

$ cat t2.rb 
framework 'Foundation'

class Foo
  def test(obj)
    p "inside test..."
    sleep 2
  end
end

o = Foo.new
t = NSThread.alloc.initWithTarget(o, selector: :"test:", object: nil)
t.start

p "wait..."
while !t.isFinished; end
p "finished"

$ ./miniruby t2.rb 
"wait...""inside test..."

"finished"
$