bridging-example.m

#if OBJC
@interface MyThingy : NSObject {
#else
struct MyThingy {
#endif

    int field1;
    char *field2;

#if OBJC
}
@end
#else
};
typedef struct MyThingy MyThingy;
#endif


#if OBJC
@interface MyThingy ()

- (void)method1;
- (void)method2;

@end
#endif


MyThingy *CreateMyThingy(void) {
#if OBJC
    return [[MyThingy alloc] init];
#else
    return calloc(1, sizeof(MyThingy));
#endif
}

void FreeMyThingy(MyThingy *thingy) {
#if OBJC
    [thingy release]; // or just nothing for ARC
#else
    InternalThingyCleanup(thingy);
    free(thingy);
}

static void InternalThingyCleanup(MyThingy *thingy) {
    free(thingy->field2);
    // and any other field cleanup that's needed
}

#if OBJC
@implementation MyThingy

- (void)dealloc {
    InternalThingyCleanup(self);
    [super dealloc]; // or nothing for ARC
}

- (void)method1 {
    ThingyFunction1(self);
}

- (void)method2 {
    ThingyFunction2(self);
}

@end
#endif