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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 #include <stddef.h>
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4
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5 typedef struct objc_object *id;
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6 id objc_getClass(const char *s);
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7
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8 @interface Object
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9 - (id) initWithInt: (int) i;
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10 @end
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11
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12 @protocol Func
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13 + (int) class_func0;
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14 - (int) instance_func0;
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15 @end
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16
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17 @interface Derived: Object // expected-note {{receiver is instance of class declared here}}
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18 + (int) class_func1;
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19 + (int) class_func2;
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20 + (int) class_func3;
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21 + (int) class_func4;
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22 + (int) class_func5;
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23 + (int) class_func6;
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24 + (int) class_func7;
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25 - (int) instance_func1;
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26 - (int) instance_func2;
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27 - (int) instance_func3;
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28 - (int) instance_func4;
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29 - (int) instance_func5;
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30 - (int) instance_func6;
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31 - (int) instance_func7;
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32 - (id) initWithInt: (int) i;
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33 @end
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34
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35 @implementation Derived
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36 + (int) class_func1
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37 {
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38 int i = (size_t)[self class_func0]; // expected-warning {{class method '+class_func0' not found (return type defaults to 'id'); did you mean '+class_func}}
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39 return i + (size_t)[super class_func0]; // expected-warning {{class method '+class_func0' not found (return type defaults to 'id')}}
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40 }
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41 + (int) class_func2
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42 {
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43 int i = [(id <Func>)self class_func0];
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44 i += [(id <Func>)super class_func0]; // expected-error {{cannot cast 'super' (it isn't an expression)}}
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45 i += [(Class <Func>)self class_func0]; //
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46 return i + [(Class <Func>)super class_func0]; // // expected-error {{cannot cast 'super' (it isn't an expression)}}
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47 }
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48 + (int) class_func3
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49 {
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50 return [(Object <Func> *)super class_func0]; // expected-error {{cannot cast 'super' (it isn't an expression)}}
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51 }
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52 + (int) class_func4
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53 {
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54 return [(Derived <Func> *)super class_func0]; // expected-error {{cannot cast 'super' (it isn't an expression)}}
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55 }
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56 + (int) class_func5
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57 {
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58 int i = (size_t)[Derived class_func0]; // expected-warning {{class method '+class_func0' not found (return type defaults to 'id')}}
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59 return i + (size_t)[Object class_func0]; // expected-warning {{class method '+class_func0' not found (return type defaults to 'id')}}
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60 }
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61 + (int) class_func6
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62 {
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63 return (size_t)[objc_getClass("Object") class_func1]; // GCC warns about this
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64 }
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65 + (int) class_func7
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66 {
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67 return [objc_getClass("Derived") class_func1];
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68 }
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69 - (int) instance_func1
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70 {
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71 int i = (size_t)[self instance_func0]; // expected-warning {{instance method '-instance_func0' not found (return type defaults to 'id'); did you mean}}
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72 return i + (size_t)[super instance_func0]; // expected-warning {{'Object' may not respond to 'instance_func0'}}
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73 }
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74 - (int) instance_func2
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75 {
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76 return [(id <Func>)super instance_func0]; // expected-error {{cannot cast 'super' (it isn't an expression)}}
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77 }
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78 - (int) instance_func3
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79 {
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80 return [(Object <Func> *)super instance_func0]; // expected-error {{cannot cast 'super' (it isn't an expression)}}
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81 }
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82 - (int) instance_func4
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83 {
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84 return [(Derived <Func> *)super instance_func0]; // expected-error {{cannot cast 'super' (it isn't an expression)}}
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85 }
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86 - (int) instance_func5
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87 {
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88 int i = (size_t)[Derived instance_func1]; // expected-warning {{class method '+instance_func1' not found (return type defaults to 'id')}}
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89 return i + (size_t)[Object instance_func1]; // expected-warning {{class method '+instance_func1' not found (return type defaults to 'id')}}
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90 }
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91 - (int) instance_func6
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92 {
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93 return (size_t)[objc_getClass("Object") class_func1];
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94 }
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95 - (int) instance_func7
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96 {
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97 return [objc_getClass("Derived") class_func1];
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98 }
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99 - (id) initWithInt: (int) i
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100 {
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101 // Don't warn about parentheses here.
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102 if (self = [super initWithInt: i]) {
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103 [self instance_func1];
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104 }
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105 return self;
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106 }
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107 @end
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108
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109 @class C;
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110 @interface A // expected-note {{receiver is instance of class declared here}}
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111 - (instancetype)initWithCoder:(A *)coder;
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112 @end
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113
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114 @interface B : A
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115 @end
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116
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117 @implementation B
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118 - (instancetype)initWithCoder:(C *)coder {
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119 if (0 != (self = [super initWithCode:code])) // expected-error {{use of undeclared identifier 'code'}} expected-warning {{instance method '-initWithCode:' not found}}
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120 return (void *)0;
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121 return (void *)0;
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122 }
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123 @end
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