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150
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1 // RUN: %clang_cc1 -fobjc-runtime-has-weak -fobjc-weak -fsyntax-only -verify %s
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2
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3 __attribute__((objc_root_class))
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4 @interface A
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5 @property (weak) id wa; // expected-note {{property declared here}}
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6 @property (weak) id wb;
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7 @property (weak) id wc; // expected-note {{property declared here}}
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8 @property (weak) id wd;
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9 @property (unsafe_unretained) id ua;
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10 @property (unsafe_unretained) id ub; // expected-note {{property declared here}}
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11 @property (unsafe_unretained) id uc;
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12 @property (unsafe_unretained) id ud;
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13 @property (strong) id sa;
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14 @property (strong) id sb; // expected-note {{property declared here}}
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15 @property (strong) id sc;
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16 @property (strong) id sd;
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17 @end
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18
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19 @implementation A {
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20 id _wa; // expected-error {{existing instance variable '_wa' for __weak property 'wa' must be __weak}}
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21 __weak id _wb;
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22 __unsafe_unretained id _wc; // expected-error {{existing instance variable '_wc' for __weak property 'wc' must be __weak}}
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23 id _ua;
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24 __weak id _ub; // expected-error {{existing instance variable '_ub' for property 'ub' with unsafe_unretained attribute must be __unsafe_unretained}}
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25 __unsafe_unretained id _uc;
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26 id _sa;
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27 __weak id _sb; // expected-error {{existing instance variable '_sb' for strong property 'sb' may not be __weak}}
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28 __unsafe_unretained id _sc;
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29 }
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30 @synthesize wa = _wa; // expected-note {{property synthesized here}}
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31 @synthesize wb = _wb;
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32 @synthesize wc = _wc; // expected-note {{property synthesized here}}
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33 @synthesize wd = _wd;
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34 @synthesize ua = _ua;
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35 @synthesize ub = _ub; // expected-note {{property synthesized here}}
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36 @synthesize uc = _uc;
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37 @synthesize ud = _ud;
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38 @synthesize sa = _sa;
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39 @synthesize sb = _sb; // expected-note {{property synthesized here}}
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40 @synthesize sc = _sc;
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41 @synthesize sd = _sd;
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42 @end
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43
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44 void test_goto() {
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45 goto after; // expected-error {{cannot jump from this goto statement to its label}}
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46 __weak id x; // expected-note {{jump bypasses initialization of __weak variable}}}
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47 after:
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48 return;
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49 }
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50
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51 void test_weak_cast(id *value) {
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52 __weak id *a = (__weak id*) value;
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53 id *b = (__weak id*) value; // expected-error {{initializing 'id *' with an expression of type '__weak id *' changes retain/release properties of pointer}}
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54 __weak id *c = (id*) value; // expected-error {{initializing '__weak id *' with an expression of type 'id *' changes retain/release properties of pointer}}
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55 }
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56
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57 void test_unsafe_unretained_cast(id *value) {
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58 __unsafe_unretained id *a = (__unsafe_unretained id*) value;
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59 id *b = (__unsafe_unretained id*) value;
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60 __unsafe_unretained id *c = (id*) value;
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61 }
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62
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63 void test_cast_qualifier_inference(__weak id *value) {
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64 __weak id *a = (id*) value;
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65 __unsafe_unretained id *b = (id *)value; // expected-error {{initializing 'id *' with an expression of type '__weak id *' changes retain/release properties of pointer}}
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66 }
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67
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