rubycocoa-talk

[Rubycocoa-talk] [PATCH] Fix for ns_override of methods returning large values

[Jonathan P. <jp...@dc...>]

Hello,

When using ns_overrides on methods that return large values (e.g., an  
NSRect), a crash occurs since the native function implementation used  
doesn't handle the msgSend_stret hidden first argument.

The attached patch resolves this issue by choosing between one of two  
implementations for the handle_ruby_method function.

I haven't adjusted indentation in order to make the patch smaller and  
clearer, so some cleanup may be required after application.

Cheers,
Jonathan

Re: [Rubycocoa-talk] [PATCH] Fix for ns_override of methods returning large values

[kimura wataru<ki...@us...>]

Hi, 

This patch was merged to CVS with small modification. I tested 
following code does not crash.

Thanks!

-----------
require 'osx/cocoa'

class Ctrl < OSX::NSObject

  def applicationDidFinishLaunching(notification)
    win = Window.alloc.initWithContentRect([0, 0, 100, 100],
        :styleMask, OSX::NSTitledWindowMask + OSX::NSClosableWindowMask,
        :backing, OSX::NSBackingStoreBuffered,
        :defer, true)
    puts win.frame
    OSX::NSApplication.sharedApplication.terminate(self)
  end

end

class Window < OSX::NSWindow
  ns_overrides 'frame'

  def frame
    super_frame # => crash
  end

end

app = OSX::NSApplication.sharedApplication
app.setDelegate(Ctrl.alloc.init)
app.run
-----------

Fri, Dec 23, 2005 11:11:37 AM, Jonathan Paisley wrote:
>Hello,
>
>When using ns_overrides on methods that return large values (e.g., an  
>NSRect), a crash occurs since the native function implementation used  
>doesn't handle the msgSend_stret hidden first argument.
>
>The attached patch resolves this issue by choosing between one of two  
>implementations for the handle_ruby_method function.
>
>I haven't adjusted indentation in order to make the patch smaller and  
>clearer, so some cleanup may be required after application.
>
>Cheers,
>Jonathan
>

-- 
kimura wataru