objective c - Use Xcode debugger to determine the type of objects stored in an NSArray -


how use xcode debugger (lldb or gdb) determine type of objects that's stored in nsarray?

another way in lldb use combination of lldb's data formatters - include 1 presents nsarray objects "real" arrays - , "dynamic type" facility in expr - pulls out real, opposed declared, types of objects. instance:

(lldb) expr -t -d run-target -- *array1 (nsarray) $2 = {       (__nscfconstantstring *) [0] = 0x0000000100002590 @"array1 object1"       (__nscfconstantstring *) [1] = 0x00000001000025b0 @"array1 object2"       (__nscfconstantstring *) [2] = 0x00000001000025d0 @"array1 object3" }

the -t option turned on type printing. nsarray "synthetic child provider" presenting array indexed array of objects. works default, didn't have turn on. , dynamic type option -d decoding real type of each object. note, can make finding dynamic type default in lldb doing:

(lldb) set set target.prefer-dynamic-value run-target

this array seems full of __nscfconstantstrings, apparently backing type constant nsstrings.


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