CF_PRIVATE CFArrayCallBacks *__CFArrayGetCallBacks(CFArrayRef array) {
CFArrayCallBacks *result = NULL;
switch (__CFRuntimeGetValue(array, 3, 2)) {
case __kCFArrayHasNullCallBacks:
return (CFArrayCallBacks *)&__kCFNullArrayCallBacks;
case __kCFArrayHasCFTypeCallBacks:
return (CFArrayCallBacks *)&kCFTypeArrayCallBacks;
case __kCFArrayHasCustomCallBacks:
break;
}
switch (__CFArrayGetType(array)) {
case __kCFArrayImmutable:
result = (CFArrayCallBacks *)((uint8_t *)array + sizeof(struct __CFArray));
break;
case __kCFArrayDeque:
result = (CFArrayCallBacks *)((uint8_t *)array + sizeof(struct __CFArray));
break;
}
return result;
}
CF_INLINE UInt32 __CFBinaryHeapMutableVariety(const void *cf) {
return __CFRuntimeGetValue(cf, 3, 2);
}
/* Only applies to immutable and mutable-deque-using arrays;
* Returns the bucket holding the left-most real value in the latter case. */
CF_INLINE struct __CFArrayBucket *__CFArrayGetBucketsPtr(CFArrayRef array) {
switch (__CFArrayGetType(array)) {
case __kCFArrayImmutable:
return (struct __CFArrayBucket *)((uint8_t *)array + __CFArrayGetSizeOfType(__CFRuntimeGetValue(array, 6, 0)));
case __kCFArrayDeque: {
struct __CFArrayDeque *deque = (struct __CFArrayDeque *)array->_store;
return (struct __CFArrayBucket *)((uint8_t *)deque + sizeof(struct __CFArrayDeque) + deque->_leftIdx * sizeof(struct __CFArrayBucket));
}
}
return NULL;
}
CF_INLINE CFIndex __CFArrayGetType(CFArrayRef array) {
return __CFRuntimeGetValue(array, 1, 0);
}