Memory management when using macruby and Objective-C

Answer 1

In your code,

resultCode = AXUIElementCopyAttributeValue( element, attribute, (CFTypeRef *)&temp );

temp is never released.

You should add:

CFMakeCollectable(temp)

MacRuby apps run in GC mode by default but your CF/Obj-C memory management can be a bit tricky (outside of MacRuby), check Apple's documentation available on their dev site.