Junior — Middle
What are the risks associated with using the 'po' command in LLDB?
sobes.tech AI
Answer from AI
The po command in LLDB is used to output the description of an object by calling the -description method (in Objective-C) or description (in Swift). Main risks when using po:
- Side effects: The
descriptionmethod may perform additional code that changes the program's state or causes errors. - Application crashes: If the object is in a bad state or
descriptionis implemented with errors, callingpocan lead to a crash. - Performance: Calling
descriptioncan be expensive in terms of time, especially for complex objects.
Therefore, when debugging, be cautious with po, especially if the object might be in an incorrect state.