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/* Test looking up fields in superclasses in the context of write-barriers

   (where component references get rewritten).  */

/* Contributed by Ziemowit Laski <zlaski@apple.com>  */

/* { dg-do compile { target *-*-darwin* } } */

/* { dg-options "-fobjc-gc" } */

#include <objc/Object.h>

@class MyWindow;

@interface MyDocument : Object {

    MyWindow *_window;

}

@end

@interface MyFileDocument : MyDocument {

     struct {

        unsigned int autoClose:1;

        unsigned int openForUI:1;

        unsigned int isClosing:1;

        unsigned int needsDiskCheck:1;

        unsigned int isWritable:1;

        unsigned int representsFileOnDisk:1;

        unsigned int RESERVED:26;

    } _fdFlags;

}

@end

@interface MyTextFileDocument : MyFileDocument {

    Object *_textStorage;

    struct __tfdFlags {

        unsigned int immutable:1;

        unsigned int lineEnding:2;

        unsigned int isClosing:1;

        unsigned int settingsAreSet:1;

        unsigned int usesTabs:1;

        unsigned int isUTF8WithBOM:1;

        unsigned int wrapsLines:1;

        unsigned int usingDefaultLanguage:1;

        unsigned int RESERVED:23;

    } _tfdFlags;

    int _tabWidth;

    int _indentWidth;

}

@end

@interface MyRTFFileDocument : MyTextFileDocument

- (BOOL)readFromFile:(const char *)fileName ofType:(const char *)type;

@end

@implementation MyRTFFileDocument

- (BOOL)readFromFile:(const char *)fileName ofType:(const char *)type {

        if (_textStorage && fileName) {

            [_textStorage free];

            return YES;

        } else if (type) {

            _textStorage = [MyRTFFileDocument new];

            return NO;

        }

   return (fileName && type);

}

@end