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#import <Foundation/Foundation.h>
// Observable side effect that is changed when one of our trap functions is
// called. This should always retain its initial value in a successful test run.
const char *called_function = "none";
// Below several trap functions are declared in different scopes that should
// never be called even though they share the name of some of the utility
// functions that LLDB has to call when updating the Objective-C class list
// (i.e. 'free' and 'objc_copyRealizedClassList_nolock').
// All functions just indicate that they got called by setting 'called_function'
// to their own name.
namespace N {
void free(void *) { called_function = "N::free"; }
void objc_copyRealizedClassList_nolock(unsigned int *) {
called_function = "N::objc_copyRealizedClassList_nolock";
}
}
struct Context {
void free(void *) { called_function = "Context::free"; }
void objc_copyRealizedClassList_nolock(unsigned int *) {
called_function = "Context::objc_copyRealizedClassList_nolock";
}
};
@interface ObjCContext : NSObject {
}
- (void)free:(void *)p;
- (void)objc_copyRealizedClassList_nolock:(unsigned int *)outCount;
@end
@implementation ObjCContext
- (void)free:(void *)p {
called_function = "ObjCContext::free";
}
- (void)objc_copyRealizedClassList_nolock:(unsigned int *)outCount {
called_function = "ObjCContext::objc_copyRealizedClassList_nolock";
}
@end
int main(int argc, char **argv) {
id str = @"str";
// Make sure all our conflicting functions/methods are emitted. The condition
// is never executed in the test as the process is launched without args.
if (argc == 1234) {
Context o;
o.free(nullptr);
o.objc_copyRealizedClassList_nolock(nullptr);
N::free(nullptr);
N::objc_copyRealizedClassList_nolock(nullptr);
ObjCContext *obj = [[ObjCContext alloc] init];
[obj free:nullptr];
[obj objc_copyRealizedClassList_nolock:nullptr];
}
return 0; // break here
}
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