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150
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1 // RUN: %clang_cc1 -verify -o - %s
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2
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3 __attribute__((objc_root_class))
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4 @interface Root @end
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5
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6 // Test reference binding.
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7
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8 typedef struct {
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9 int f0;
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10 int f1;
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11 } T;
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12
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13 @interface A : Root
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14 @property (assign) T p0;
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15 @property (assign) T& p1;
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16 @end
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17
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18 int f0(const T& t) {
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19 return t.f0;
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20 }
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21
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22 int f1(A *a) {
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23 return f0(a.p0);
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24 }
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25
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26 int f2(A *a) {
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27 return f0(a.p1);
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28 }
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29
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30 // PR7740
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31 @class NSString;
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32
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33 void f3(id);
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34 void f4(NSString &tmpstr) {
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35 f3(&tmpstr);
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36 }
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37
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38 // PR7741
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39 @protocol P1 @end
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40 @protocol P2 @end
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41 @protocol P3 @end
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42 @interface foo<P1> {} @end
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43 @interface bar : foo <P1, P2, P3> {} @end
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44 typedef bar baz;
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45
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46 struct ToBar {
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47 operator bar&() const;
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48 };
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49
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50 void f5(foo&);
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51 void f5b(foo<P1>&);
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52 void f5c(foo<P2>&);
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53 void f5d(foo<P3>&);
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54 void f6(baz* x) {
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55 f5(*x);
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56 f5b(*x);
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57 f5c(*x);
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58 f5d(*x);
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59 (void)((foo&)*x);
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60 f5(ToBar());
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61 f5b(ToBar());
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62 f5c(ToBar());
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63 f5d(ToBar());
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64 (void)((foo&)ToBar());
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65 }
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66
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67 // rdar://13794269
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68 @interface B : Root @end
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69 @implementation B {
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70 unsigned bf : 4; // expected-note {{declared here}}
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71 }
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72
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73 - (void) foo {
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74 unsigned &i = bf; // expected-error {{non-const reference cannot bind to bit-field 'bf'}}
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75 }
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76 @end
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