1// RUN: %clang_cc1  -fsyntax-only -verify %s
2
3#define NULL (void*)0
4
5#define ATTR __attribute__ ((__sentinel__))
6
7@interface INTF
8- (void) foo1 : (int)x, ... ATTR; // expected-note {{method has been explicitly marked sentinel here}}
9- (void) foo3 : (int)x __attribute__ ((__sentinel__)) ; // expected-warning {{'sentinel' attribute only supported for variadic functions}}
10- (void) foo5 : (int)x, ... __attribute__ ((__sentinel__(1))); // expected-note {{method has been explicitly marked sentinel here}}
11- (void) foo6 : (int)x, ... __attribute__ ((__sentinel__(5))); // expected-note {{method has been explicitly marked sentinel here}}
12- (void) foo7 : (int)x, ... __attribute__ ((__sentinel__(0))); // expected-note {{method has been explicitly marked sentinel here}}
13- (void) foo8 : (int)x, ... __attribute__ ((__sentinel__("a")));  // expected-error {{'__sentinel__' attribute requires parameter 1 to be an integer constant}}
14- (void) foo9 : (int)x, ... __attribute__ ((__sentinel__(-1)));  // expected-error {{'sentinel' parameter 1 less than zero}}
15- (void) foo10 : (int)x, ... __attribute__ ((__sentinel__(1,1)));
16- (void) foo11 : (int)x, ... __attribute__ ((__sentinel__(1,1,3)));  // expected-error {{'__sentinel__' attribute takes no more than 2 arguments}}
17- (void) foo12 : (int)x, ... ATTR; // expected-note {{method has been explicitly marked sentinel here}}
18
19// rdar://7975788
20- (id) foo13 : (id)firstObj, ... __attribute__((sentinel(0,1)));
21- (id) foo14 : (id)firstObj :  (Class)secondObj, ... __attribute__((sentinel(0,1)));
22- (id) foo15 : (id*)firstObj, ... __attribute__((sentinel(0,1)));
23- (id) foo16 : (id**)firstObj, ... __attribute__((sentinel(0,1)));
24@end
25
26int main ()
27{
28  INTF *p;
29
30  [p foo1:1, NULL]; // OK
31  [p foo1:1, 0];  // expected-warning {{missing sentinel in method dispatch}}
32  [p foo5:1, NULL, 2]; // OK
33  [p foo5:1, 2, NULL, 1]; // OK
34  [p foo5:1, NULL, 2, 1];  // expected-warning {{missing sentinel in method dispatch}}
35
36  [p foo6:1,2,3,4,5,6,7];  // expected-warning {{missing sentinel in method dispatch}}
37  [p foo6:1,NULL,3,4,5,6,7]; // OK
38  [p foo7:1];	 // expected-warning {{not enough variable arguments in 'foo7:' declaration to fit a sentinel}}
39  [p foo7:1, NULL]; // ok
40
41  [p foo12:1]; // expected-warning {{not enough variable arguments in 'foo12:' declaration to fit a sentinel}}
42
43  // rdar://7975788
44  [ p foo13 : NULL];
45  [ p foo14 : 0 : NULL];
46  [ p foo16 : NULL];
47  [ p foo15 : NULL];
48}
49
50