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/* Test warnings for shadowing instance variables.  */

/* Based on work by: Nicola Pero .  */

/* { dg-do compile } */

#include 

@interface MySuperClass

{

@private

  int _private;

@protected

  int _protected;

@public

  int _public;

}

- (void) test;

@end

@implementation MySuperClass

- (void) test

{

  /* FIXME: I wonder if the warnings shouldn't be better generated

     when the variable is declared, rather than used!  */

  int _private = 12;

  int _protected = 12;

  int _public = 12;

  int a;

  a = _private;    /* { dg-warning "hides instance variable" } */

  a = _protected;  /* { dg-warning "hides instance variable" } */

  a = _public;     /* { dg-warning "hides instance variable" } */

}

@end

@interface MyClass : MySuperClass

@end

@implementation MyClass

- (void) test

{

  int _private = 12;

  int _protected = 12;

  int _public = 12;

  int a;

  /* The private variable can be shadowed without warnings, because

   * it's invisible, and not accessible, to the subclass!  */

  a = _private;   /* Ok  */

  a = _protected; /* { dg-warning "hides instance variable" } */

  a = _public;    /* { dg-warning "hides instance variable" } */

}

@end