1 // RUN: %clang_cc1 -triple x86_64-apple-darwin11 -fobjc-runtime-has-weak -fsyntax-only -fobjc-arc -verify %s
6 id __unsafe_unretained x;
8 id __autoreleasing z; // expected-error {{instance variables cannot have __autoreleasing ownership}}
10 @property(strong) id x;
11 @property(strong) id y;
12 @property(strong) id z;
17 id __unsafe_unretained x;
19 id __autoreleasing z; // expected-error {{instance variables cannot have __autoreleasing ownership}}
21 @property(retain) id x;
22 @property(retain) id y;
23 @property(retain) id z;
28 id __unsafe_unretained x;
30 id __autoreleasing z; // expected-error {{instance variables cannot have __autoreleasing ownership}}
37 // Errors should start about here :-)
40 @property(strong) __unsafe_unretained id x; // expected-error {{strong property 'x' may not also be declared __unsafe_unretained}}
41 @property(strong) __weak id y; // expected-error {{strong property 'y' may not also be declared __weak}}
42 @property(strong) __autoreleasing id z; // expected-error {{strong property 'z' may not also be declared __autoreleasing}}
46 @property(retain) __unsafe_unretained id x; // expected-error {{strong property 'x' may not also be declared __unsafe_unretained}}
47 @property(retain) __weak id y; // expected-error {{strong property 'y' may not also be declared __weak}}
48 @property(retain) __autoreleasing id z; // expected-error {{strong property 'z' may not also be declared __autoreleasing}}
52 @property(copy) __unsafe_unretained id x; // expected-error {{strong property 'x' may not also be declared __unsafe_unretained}}
53 @property(copy) __weak id y; // expected-error {{strong property 'y' may not also be declared __weak}}
54 @property(copy) __autoreleasing id z; // expected-error {{strong property 'z' may not also be declared __autoreleasing}}
58 @property(assign) __unsafe_unretained id x;
59 @property(assign) __weak id y; // expected-error {{unsafe_unretained property 'y' may not also be declared __weak}}
60 @property(assign) __autoreleasing id z; // expected-error {{unsafe_unretained property 'z' may not also be declared __autoreleasing}}
64 @property(unsafe_unretained) __unsafe_unretained id x;
65 @property(unsafe_unretained) __weak id y; // expected-error {{unsafe_unretained property 'y' may not also be declared __weak}}
66 @property(unsafe_unretained) __autoreleasing id z; // expected-error {{unsafe_unretained property 'z' may not also be declared __autoreleasing}}
71 @property (readonly, retain) id foo;
72 @property (readonly, weak) id fee;
73 @property (readonly, strong) id frr;
76 @interface Bugg : Super
77 @property (readwrite) id foo;
78 @property (readwrite) id fee;
79 @property (readwrite) id frr;
85 @interface NSObject @end
87 #pragma clang assume_nonnull begin
88 @interface I: NSObject
89 @property(nonatomic, weak) id delegate; // Do not warn, nullable is inferred.
90 @property(nonatomic, weak, readonly) id ROdelegate; // Do not warn, nullable is inferred.
91 @property(nonatomic, weak, nonnull) id NonNulldelete; // expected-error {{property attributes 'nonnull' and 'weak' are mutually exclusive}}
92 @property(nonatomic, weak, nullable) id Nullabledelete; // do not warn
95 @property(nonatomic, strong) id stdelegate; // Do not warn
96 @property(nonatomic, readonly) id stROdelegate; // Do not warn
97 @property(nonatomic, strong, nonnull) id stNonNulldelete; // Do not warn
98 @property(nonatomic, nullable) id stNullabledelete; // do not warn
100 #pragma clang assume_nonnull end
102 @interface J: NSObject
103 @property(nonatomic, weak) id ddd; // Do not warn, nullable is inferred.
104 @property(nonatomic, weak, nonnull) id delegate; // expected-error {{property attributes 'nonnull' and 'weak' are mutually exclusive}}
105 @property(nonatomic, weak, nonnull, readonly) id ROdelegate; // expected-error {{property attributes 'nonnull' and 'weak' are mutually exclusive}}
108 // rdar://problem/23931441
110 @property(readonly, retain) id prop;
113 __attribute__((objc_root_class))
118 @property (readwrite) id prop;
126 // Verify that the all of the property declarations in inherited protocols are
127 // compatible when synthesing a property from a protocol.
129 @protocol CopyVsAssign1
130 @property (copy, nonatomic, readonly) id prop; // expected-error {{property with attribute 'copy' was selected for synthesis}}
132 @protocol CopyVsAssign2
133 @property (assign, nonatomic, readonly) id prop; // expected-note {{it could also be property without attribute 'copy' declared here}}
136 @interface CopyVsAssign: Foo <CopyVsAssign1, CopyVsAssign2>
138 @implementation CopyVsAssign
139 @synthesize prop; // expected-note {{property synthesized here}}
142 @protocol RetainVsNonRetain1
143 @property (readonly) id prop; // expected-error {{property without attribute 'retain (or strong)' was selected for synthesis}}
145 @protocol RetainVsNonRetain2
146 @property (retain, readonly) id prop; // expected-note {{it could also be property with attribute 'retain (or strong)' declared here}}
149 @interface RetainVsNonRetain: Foo <RetainVsNonRetain1, RetainVsNonRetain2>
151 @implementation RetainVsNonRetain
152 @synthesize prop; // expected-note {{property synthesized here}}
155 @protocol AtomicVsNonatomic1
156 @property (copy, nonatomic, readonly) id prop; // expected-error {{property without attribute 'atomic' was selected for synthesis}}
158 @protocol AtomicVsNonatomic2
159 @property (copy, atomic, readonly) id prop; // expected-note {{it could also be property with attribute 'atomic' declared here}}
162 @interface AtomicVsNonAtomic: Foo <AtomicVsNonatomic1, AtomicVsNonatomic2>
164 @implementation AtomicVsNonAtomic
165 @synthesize prop; // expected-note {{property synthesized here}}
169 @property (copy, readonly) id prop; // expected-error {{property with getter 'prop' was selected for synthesis}}
172 @property (copy, getter=x, readonly) id prop; // expected-note {{it could also be property with getter 'x' declared here}}
175 @interface GetterVsGetter: Foo <Getter1, Getter2>
177 @implementation GetterVsGetter
178 @synthesize prop; // expected-note {{property synthesized here}}
182 @property (copy, readonly) id prop;
185 @property (copy, setter=setp:, readwrite) id prop; // expected-error {{property with setter 'setp:' was selected for synthesis}}
188 @property (copy, readwrite) id prop; // expected-note {{it could also be property with setter 'setProp:' declared here}}
191 @interface SetterVsSetter: Foo <Setter1, Setter2, Setter3>
193 @implementation SetterVsSetter
194 @synthesize prop; // expected-note {{property synthesized here}}
197 @protocol TypeVsAttribute1
198 @property (assign, atomic, readonly) int prop; // expected-error {{property of type 'int' was selected for synthesis}}
200 @protocol TypeVsAttribute2
201 @property (assign, atomic, readonly) id prop; // expected-note {{it could also be property of type 'id' declared here}}
203 @protocol TypeVsAttribute3
204 @property (copy, readonly) id prop; // expected-note {{it could also be property with attribute 'copy' declared here}}
207 @interface TypeVsAttribute: Foo <TypeVsAttribute1, TypeVsAttribute2, TypeVsAttribute3>
209 @implementation TypeVsAttribute
210 @synthesize prop; // expected-note {{property synthesized here}}
213 @protocol TypeVsSetter1
214 @property (assign, nonatomic, readonly) int prop; // expected-note {{it could also be property of type 'int' declared here}}
216 @protocol TypeVsSetter2
217 @property (assign, nonatomic, readonly) id prop; // ok
219 @protocol TypeVsSetter3
220 @property (assign, nonatomic, readwrite) id prop; // expected-error {{property of type 'id' was selected for synthesis}}
223 @interface TypeVsSetter: Foo <TypeVsSetter1, TypeVsSetter2, TypeVsSetter3>
225 @implementation TypeVsSetter
226 @synthesize prop; // expected-note {{property synthesized here}}
229 @protocol AutoStrongProp
231 @property (nonatomic, readonly) NSObject *prop;
235 @protocol AutoStrongProp_Internal <AutoStrongProp>
237 // This property gets the 'strong' attribute automatically.
238 @property (nonatomic, readwrite) NSObject *prop;
242 @interface SynthesizeWithImplicitStrongNoError : NSObject <AutoStrongProp>
245 @interface SynthesizeWithImplicitStrongNoError () <AutoStrongProp_Internal>
249 @implementation SynthesizeWithImplicitStrongNoError
251 // no error, 'strong' is implicit in the 'readwrite' property.
252 @synthesize prop = _prop;
257 // Allow strong readwrite property and a readonly one.
258 @protocol StrongCollision
260 @property(strong) NSObject *p;
261 @property(copy) NSObject *p2;
263 // expected-error@+1 {{property with attribute 'retain (or strong)' was selected for synthesis}}
264 @property(strong, readwrite) NSObject *collision;
268 @protocol ReadonlyCollision
270 @property(readonly) NSObject *p;
271 @property(readonly) NSObject *p2;
273 // expected-note@+1 {{it could also be property without attribute 'retain (or strong)' declared here}}
274 @property(readonly, weak) NSObject *collision;
278 @interface StrongReadonlyCollision : NSObject <StrongCollision, ReadonlyCollision>
281 @implementation StrongReadonlyCollision
285 @synthesize p2 = _p2;
287 @synthesize collision = _collision; // expected-note {{property synthesized here}}
291 // This used to crash because we'd temporarly store the weak attribute on the
292 // declaration specifier, then deallocate it when clearing the declarator.
293 id i1, __weak i2, i3;