casts.m revision f7afe4abd29062b1761e06ec22d2e4216c22519e 
1// RUN: %clang_cc1 -analyze -analyzer-checker=core,experimental.core -analyzer-store=region -verify %s
2
3// Test function pointer casts.  Currently we track function addresses using
4// loc::FunctionVal.  Because casts can be arbitrary, do we need to model
5// functions with regions?
6typedef void* (*MyFuncTest1)(void);
7
8MyFuncTest1 test1_aux(void);
9void test1(void) {
10  void *x;
11  void* (*p)(void);
12  p = ((void*) test1_aux());
13  if (p != ((void*) 0)) x = (*p)();
14}
15
16// Test casts from void* to function pointers.  Same issue as above:
17// should we eventually model function pointers using regions?
18void* test2(void *p) {
19  MyFuncTest1 fp = (MyFuncTest1) p;
20  return (*fp)();
21}
22
23// <radar://10087620>
24// A cast from int onjective C property reference to int.
25typedef signed char BOOL;
26@protocol NSObject  - (BOOL)isEqual:(id)object; @end
27@interface NSObject <NSObject> {} - (id)init; @end
28typedef enum {
29  AIMediaTypeAudio,
30  AIMediaTypeVideo
31} AIMediaType;
32@interface AIMedia : NSObject {
33  AIMediaType   mediaType;
34}
35@property (readwrite, nonatomic) AIMediaType mediaType;
36static void
37adium_media_ready_cb(AIMedia *adiumMedia, const char *sid)
38{
39  adiumMedia.mediaType |= AIMediaTypeVideo;
40}
41@end