praveenmatanam
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09:28:56 am on March 2, 2010 |
Two of the best features of Objective-C, proxies and categories, also come from the runtime binding. Objective-C also does not allow stack based objects. Each object must be a pointer to a block of memory. Memory allocations on the Macintosh are expensive. Under NeXTSTEP, virtual memory and a decent memory manager means little heap fragmentation, and therefore, memory allocations are much cheaper, so embedded objects are not as important.
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