| 1 | #import <Foundation/Foundation.h> |
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| 2 | |
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| 3 | // Observable side effect that is changed when one of our trap functions is |
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| 4 | // called. This should always retain its initial value in a successful test run. |
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| 5 | const char *called_function = "none" ; |
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| 6 | |
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| 7 | // Below several trap functions are declared in different scopes that should |
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| 8 | // never be called even though they share the name of some of the utility |
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| 9 | // functions that LLDB has to call when updating the Objective-C class list |
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| 10 | // (i.e. 'free' and 'objc_copyRealizedClassList_nolock'). |
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| 11 | // All functions just indicate that they got called by setting 'called_function' |
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| 12 | // to their own name. |
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| 13 | |
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| 14 | namespace N { |
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| 15 | void free(void *) { called_function = "N::free" ; } |
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| 16 | void objc_copyRealizedClassList_nolock(unsigned int *) { |
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| 17 | called_function = "N::objc_copyRealizedClassList_nolock" ; |
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| 18 | } |
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| 19 | } |
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| 20 | |
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| 21 | struct Context { |
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| 22 | void free(void *) { called_function = "Context::free" ; } |
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| 23 | void objc_copyRealizedClassList_nolock(unsigned int *) { |
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| 24 | called_function = "Context::objc_copyRealizedClassList_nolock" ; |
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| 25 | } |
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| 26 | }; |
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| 27 | |
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| 28 | @interface ObjCContext : NSObject { |
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| 29 | } |
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| 30 | - (void)free:(void *)p; |
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| 31 | - (void)objc_copyRealizedClassList_nolock:(unsigned int *)outCount; |
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| 32 | @end |
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| 33 | |
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| 34 | @implementation ObjCContext |
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| 35 | - (void)free:(void *)p { |
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| 36 | called_function = "ObjCContext::free" ; |
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| 37 | } |
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| 38 | |
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| 39 | - (void)objc_copyRealizedClassList_nolock:(unsigned int *)outCount { |
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| 40 | called_function = "ObjCContext::objc_copyRealizedClassList_nolock" ; |
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| 41 | } |
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| 42 | @end |
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| 43 | |
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| 44 | int main(int argc, char **argv) { |
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| 45 | id str = @"str" ; |
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| 46 | // Make sure all our conflicting functions/methods are emitted. The condition |
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| 47 | // is never executed in the test as the process is launched without args. |
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| 48 | if (argc == 1234) { |
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| 49 | Context o; |
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| 50 | o.free(nullptr); |
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| 51 | o.objc_copyRealizedClassList_nolock(nullptr); |
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| 52 | N::free(nullptr); |
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| 53 | N::objc_copyRealizedClassList_nolock(nullptr); |
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| 54 | ObjCContext *obj = [[ObjCContext alloc] init]; |
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| 55 | [obj free:nullptr]; |
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| 56 | [obj objc_copyRealizedClassList_nolock:nullptr]; |
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| 57 | } |
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| 58 | return 0; // break here |
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| 59 | } |
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| 60 | |
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