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/* Test for situations in which protocol conformance information

   may be lost, leading to superfluous warnings.  */

/* Author: Ziemowit Laski <zlaski@apple.com>.  */

/* { dg-do compile } */

/* One-line substitute for objc/objc.h */

typedef struct objc_object { struct objc_class *class_pointer; } *id;

@protocol NSObject

- (int)someValue;

@end

@interface NSObject <NSObject>

@end

@protocol PlateMethods

- (void)someMethod;

@end

@interface Foo {

  NSObject <PlateMethods> *plate;

  id <PlateMethods> plate1;

  NSObject *plate2;

}

- (id <PlateMethods>) getPlate;

- (id <NSObject>) getPlate1;

- (int) getValue;

@end

@implementation Foo

- (id <PlateMethods>) getPlate {

  return plate;  /* { dg-bogus "does not implement" } */

}

- (id <NSObject>) getPlate1 {

  return (id <NSObject>)plate1; /* { dg-bogus "does not conform" } */

}

- (int) getValue {

  int i = [plate1 someValue];   /* { dg-warning ".\\-someValue. not found in protocol\\(s\\)" } */

  int j = [(id <NSObject>)plate1 someValue];  /* { dg-bogus "not found in protocol" } */

  int k = [(id)plate1 someValue]; /* { dg-bogus "not found in protocol" } */

  return i + j + k;

}

@end