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Table Of Contents
Mastering Swift 6 - Seventh Edition
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Whenever new instances of a class is created, ARC allocates the necessary memory to store that instance. This allocation ensures there is enough memory to hold the instance's information and locks the memory to prevent it from being overwritten by other processes.
When a class instance is no longer needed, ARC releases the allocated memory so it can be used for other purposes. This process prevents memory from being tied up unnecessarily, which is essential for maintaining optimal performance. If memory is reserved for instances that are no longer needed, it results in a memory leak, which can degrade application performance and stability over time.
On the other hand, if ARC prematurely releases the memory for an instance of a class that is still in use, retrieving the class information from memory becomes impossible. Attempting to access an instance after its has been released may lead to application crashes or data corruption. To prevent this, ARC maintains a reference...