class_copyMethodList requires a call to free()

[chelmerich]

On page 340, in the body of function BNRMethodsForClass(), there is call to

NSArray *BNRMethodsForClass(Class cls) { ... Method *methodList = class_copyMethodList(cls, &methodCount); ... }

Because this is a “copy” function, shouldn’t the create-rule apply here? i.e. requiring us to release the list later:

In this context of an example, it’s not critical I know, but wondering nonetheless since the Appendix makes a point about the create-rule vs. the get-rule.

[ibex10]

Yes, it must be freed:

[size=150]class_copyMethodList[/size]
Describes the instance methods implemented by a class.

[size=150]Method * class_copyMethodList (Class cls, unsigned int *outCount)[/size]
Parameters
cls
The class you want to inspect.
outCount
On return, contains the length of the returned array. If outCount is NULL, the length is not returned.
Return Value
An array of pointers of type Method describing the instance methods implemented by the class—any instance methods implemented by superclasses are not included. The array contains *outCount pointers followed by a NULL terminator. You must free the array with free().
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