kimura wataru
kimur****@i*****
Sat Dec 9 19:54:39 JST 2006
Hi,
RubyCocoa automatically converts Array->NSArray and Hash->NSDictionary.
But treatment of nil value is different between Ruby and Cocoa.
Ruby:
Array, Hash key, Hash value - allows nil
Cocoa:
Array, Hash key - not allows nil
Hash value - allows nil as NSNull
I wrote a patch to add assertions at conversion and tests.
* raise ArgumentError for a nil value at Array->NSArray conversion
* raise ArgumentError for a nil key at Hash->NSDictionary conversion
* use NSNull for a nil value of Hash at Hash->NSDictionary conversion
I think this feature is useful on debugging RubyCocoa applications.
ex)
% ruby -rosx/cocoa -e 'OSX::NSArray.arrayWithObject([1, nil, 3])'
/Library/Frameworks/RubyCocoa.framework/Versions/A/Resources/ruby/osx/objc/oc_wrapper.rb:17:in `ocm_send': cannot covert to NSArray, item 1 is nil: [1, nil, 3] (ArgumentError)
from /Library/Frameworks/RubyCocoa.framework/Versions/A/Resources/ruby/osx/objc/oc_wrapper.rb:17:in `method_missing'
--
kimura wataru
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