130 lines
2.9 KiB
Objective-C
130 lines
2.9 KiB
Objective-C
// RUN: %clang_cc1 -x objective-c -fsyntax-only -verify -Wno-objc-root-class %s
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// RUN: %clang_cc1 -x objective-c++ -fsyntax-only -verify -Wno-objc-root-class %s
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// rdar://8843851
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@interface StopAccessingIvarsDirectlyExample
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@property(strong) id name, rank, serialNumber;
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@end
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@implementation StopAccessingIvarsDirectlyExample
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- (void)identifyYourSelf {
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if (self.name && self.rank && self.serialNumber)
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self.name = 0;
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}
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// @synthesize name, rank, serialNumber;
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// default synthesis allows direct access to property ivars.
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- (id)init {
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_name = _rank = _serialNumber = 0;
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return self;
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}
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- (void)dealloc {
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}
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@end
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// Test2
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@interface Test2
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@property(strong, nonatomic) id object;
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@end
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// object has user declared setter/getter so it won't be
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// default synthesized; thus causing user error.
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@implementation Test2
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- (id) bar { return object; } // expected-error {{use of undeclared identifier 'object'}}
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- (void)setObject:(id)newObject {}
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- (id)object { return 0; }
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@end
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// Test3
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@interface Test3
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{
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id uid; // expected-note {{instance variable is declared here}}
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}
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@property (readwrite, assign) id uid; // expected-note {{property declared here}}
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@end
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// rdar://11671080
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@implementation Test3 // expected-warning {{autosynthesized property 'uid' will use synthesized instance variable '_uid', not existing instance variable 'uid'}}
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// Oops, forgot to write @synthesize! will be default synthesized
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- (void) myMethod {
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self.uid = 0; // Use of the “setter”
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uid = 0; // Use of the wrong instance variable
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_uid = 0; // Use of the property instance variable
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}
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@end
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@interface Test4 {
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id _var;
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}
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@property (readwrite, assign) id var;
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@end
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// default synthesize property named 'var'
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@implementation Test4
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- (id) myMethod {
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return self->_var; // compiles because 'var' is synthesized by default
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}
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@end
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@interface Test5
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{
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id _var;
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}
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@property (readwrite, assign) id var;
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@end
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// default synthesis of property 'var'
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@implementation Test5
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- (id) myMethod {
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Test5 *foo = 0;
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return foo->_var; // OK
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}
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@end
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@interface Test6
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{
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id _var; // expected-note {{'_var' declared here}}
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}
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@property (readwrite, assign) id var;
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@end
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// no default synthesis. So error is expected.
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@implementation Test6
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- (id) myMethod
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{
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return var; // expected-error {{use of undeclared identifier 'var'}}
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}
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@synthesize var = _var;
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@end
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int* _object;
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@interface Test7
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@property (readwrite, assign) id object;
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@end
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// With default synthesis, '_object' is be the synthesized ivar not the global
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// 'int*' object. So no error.
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@implementation Test7
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- (id) myMethod {
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return _object;
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}
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@end
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// rdar://11671080
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@interface Test8
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{
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id _y;
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id y; // expected-note {{instance variable is declared here}}
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}
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@property(copy) id y; // expected-note {{property declared here}}
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@end
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@implementation Test8 @end // expected-warning {{autosynthesized property 'y' will use instance variable '_y', not existing instance variable 'y'}}
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