/* Test warnings for shadowing instance variables. */
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/* Test warnings for shadowing instance variables. */
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/* Based on work by: Nicola Pero . */
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/* Based on work by: Nicola Pero . */
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/* { dg-do compile } */
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/* { dg-do compile } */
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#include
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#include
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@interface MySuperClass
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@interface MySuperClass
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{
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{
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@private
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@private
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int _private;
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int _private;
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@protected
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@protected
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int _protected;
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int _protected;
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@public
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@public
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int _public;
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int _public;
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}
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}
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- (void) test;
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- (void) test;
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@end
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@end
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@implementation MySuperClass
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@implementation MySuperClass
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- (void) test
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- (void) test
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{
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{
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/* FIXME: I wonder if the warnings shouldn't be better generated
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/* FIXME: I wonder if the warnings shouldn't be better generated
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when the variable is declared, rather than used! */
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when the variable is declared, rather than used! */
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int _private = 12;
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int _private = 12;
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int _protected = 12;
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int _protected = 12;
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int _public = 12;
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int _public = 12;
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int a;
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int a;
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a = _private; /* { dg-warning "hides instance variable" } */
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a = _private; /* { dg-warning "hides instance variable" } */
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a = _protected; /* { dg-warning "hides instance variable" } */
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a = _protected; /* { dg-warning "hides instance variable" } */
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a = _public; /* { dg-warning "hides instance variable" } */
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a = _public; /* { dg-warning "hides instance variable" } */
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}
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}
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@end
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@end
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@interface MyClass : MySuperClass
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@interface MyClass : MySuperClass
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@end
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@end
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@implementation MyClass
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@implementation MyClass
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- (void) test
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- (void) test
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{
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{
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int _private = 12;
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int _private = 12;
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int _protected = 12;
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int _protected = 12;
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int _public = 12;
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int _public = 12;
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int a;
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int a;
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/* The private variable can be shadowed without warnings, because
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/* The private variable can be shadowed without warnings, because
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* it's invisible, and not accessible, to the subclass! */
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* it's invisible, and not accessible, to the subclass! */
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a = _private; /* Ok */
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a = _private; /* Ok */
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a = _protected; /* { dg-warning "hides instance variable" } */
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a = _protected; /* { dg-warning "hides instance variable" } */
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a = _public; /* { dg-warning "hides instance variable" } */
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a = _public; /* { dg-warning "hides instance variable" } */
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}
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}
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@end
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@end
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