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150
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1 // RUN: %clang_cc1 -fsyntax-only -verify %s
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2
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3 #define NULL (void*)0
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4
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5 #define ATTR __attribute__ ((__sentinel__))
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6
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7 @interface INTF
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8 - (void) foo1 : (int)x, ... ATTR; // expected-note {{method has been explicitly marked sentinel here}}
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9 - (void) foo3 : (int)x __attribute__ ((__sentinel__)) ; // expected-warning {{'sentinel' attribute only supported for variadic functions}}
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10 - (void) foo5 : (int)x, ... __attribute__ ((__sentinel__(1))); // expected-note {{method has been explicitly marked sentinel here}}
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11 - (void) foo6 : (int)x, ... __attribute__ ((__sentinel__(5))); // expected-note {{method has been explicitly marked sentinel here}}
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12 - (void) foo7 : (int)x, ... __attribute__ ((__sentinel__(0))); // expected-note {{method has been explicitly marked sentinel here}}
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13 - (void) foo8 : (int)x, ... __attribute__ ((__sentinel__("a"))); // expected-error {{'__sentinel__' attribute requires parameter 1 to be an integer constant}}
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14 - (void) foo9 : (int)x, ... __attribute__ ((__sentinel__(-1))); // expected-error {{'sentinel' parameter 1 less than zero}}
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15 - (void) foo10 : (int)x, ... __attribute__ ((__sentinel__(1,1)));
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16 - (void) foo11 : (int)x, ... __attribute__ ((__sentinel__(1,1,3))); // expected-error {{'__sentinel__' attribute takes no more than 2 arguments}}
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17 - (void) foo12 : (int)x, ... ATTR; // expected-note {{method has been explicitly marked sentinel here}}
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18
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19 // rdar://7975788
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20 - (id) foo13 : (id)firstObj, ... __attribute__((sentinel(0,1)));
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21 - (id) foo14 : (id)firstObj : (Class)secondObj, ... __attribute__((sentinel(0,1)));
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22 - (id) foo15 : (id*)firstObj, ... __attribute__((sentinel(0,1)));
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23 - (id) foo16 : (id**)firstObj, ... __attribute__((sentinel(0,1)));
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24 @end
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25
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26 int main ()
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27 {
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28 INTF *p;
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29
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30 [p foo1:1, NULL]; // OK
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31 [p foo1:1, 0]; // expected-warning {{missing sentinel in method dispatch}}
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32 [p foo5:1, NULL, 2]; // OK
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33 [p foo5:1, 2, NULL, 1]; // OK
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34 [p foo5:1, NULL, 2, 1]; // expected-warning {{missing sentinel in method dispatch}}
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35
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36 [p foo6:1,2,3,4,5,6,7]; // expected-warning {{missing sentinel in method dispatch}}
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37 [p foo6:1,NULL,3,4,5,6,7]; // OK
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38 [p foo7:1]; // expected-warning {{not enough variable arguments in 'foo7:' declaration to fit a sentinel}}
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39 [p foo7:1, NULL]; // ok
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40
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41 [p foo12:1]; // expected-warning {{not enough variable arguments in 'foo12:' declaration to fit a sentinel}}
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42
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43 // rdar://7975788
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44 [ p foo13 : NULL];
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45 [ p foo14 : 0 : NULL];
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46 [ p foo16 : NULL];
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47 [ p foo15 : NULL];
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48 }
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49
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