libs-base/Source/objects/Coder.h
mccallum 571196a9e5 ([Coder +setDefaultCStreamClass:]): Declare method.
([Coder +defaultCStreamClass]): Declare method.


git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@991 72102866-910b-0410-8b05-ffd578937521
1996-02-24 16:35:58 +00:00

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/* Interface for GNU Objective-C coder object for use serializing
Copyright (C) 1994, 1995, 1996 Free Software Foundation, Inc.
Written by: R. Andrew McCallum <mccallum@gnu.ai.mit.edu>
Date: July 1994
This file is part of the GNU Objective C Class Library.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __Coder_h_OBJECTS_INCLUDE
#define __Coder_h_OBJECTS_INCLUDE
#include <objects/stdobjects.h>
#include <objects/Coding.h>
#include <objects/Streaming.h>
#include <objects/String.h>
#include <Foundation/NSHashTable.h>
#include <Foundation/NSMapTable.h>
@class CStream;
/* The root abstract class for archiving */
@interface Coder : NSObject
{
int format_version;
CStream *cstream;
NSMapTable *classname_2_classname; /* for changing class names on r/w */
int interconnect_stack_height; /* number of nested root objects */
}
+ setDebugging: (BOOL)f;
@end
/* An abstract class for writing an archive */
@interface Encoder : Coder
{
/* xxx in_progress_table should actually be an NSHashTable,
but we are working around a bug right now. */
NSMapTable *in_progress_table; /* objects begun writing, but !finished */
NSMapTable *object_2_xref; /* objects already written */
NSMapTable *object_2_fref; /* table of forward references */
NSMapTable *const_ptr_2_xref; /* const pointers already written */
}
- initForWritingToFile: (id <String>) filename;
- initForWritingToFile: (id <String>) filename
withCStreamClass: (Class) cStreamClass;
- initForWritingToFile: (id <String>) filename
withFormatVersion: (int) version
cStreamClass: (Class)scc
cStreamFormatVersion: (int) cStreamFormatVersion;
- initForWritingToStream: (id <Streaming>) s;
- initForWritingToStream: (id <Streaming>) s
withCStreamClass: (Class) cStreamClass;
- initForWritingToStream: (id <Streaming>) s
withFormatVersion: (int) version
cStreamClass: (Class) cStreamClass
cStreamFormatVersion: (int) cStreamFormatVersion;
+ (BOOL) encodeRootObject: anObject
withName: (id <String>) name
toFile: (id <String>) filename;
+ (BOOL) encodeRootObject: anObject
withName: (id <String>) name
toStream: (id <Streaming>)stream;
/* Defaults */
+ (void) setDefaultStreamClass: sc;
+ defaultStreamClass;
+ (void) setDefaultCStreamClass: sc;
+ defaultCStreamClass;
+ (void) setDefaultFormatVersion: (int)fv;
+ (int) defaultFormatVersion;
@end
@interface Encoder (Encoding) <Encoding>
@end
/* An abstract class for reading an archive. */
@interface Decoder : Coder
{
NSZone *zone; /* zone in which to create objects */
id xref_2_object; /* objects already read */
id xref_2_object_root; /* objs read since last -startDecodoingI.. */
NSMapTable *xref_2_const_ptr; /* const pointers already written */
NSMapTable *fref_2_object; /* table of forward references */
NSMapTable *address_2_fref; /* table of forward references */
}
/* These are class methods (and not instance methods) because the
header of the file or stream determines which subclass of Decoder
is created. */
+ newReadingFromFile: (id <String>) filename;
+ newReadingFromStream: (id <Streaming>)stream;
+ decodeObjectWithName: (id <String> *) name
fromFile: (id <String>) filename;
+ decodeObjectWithName: (id <String> *) name
fromStream: (id <Streaming>)stream;
@end
@interface Decoder (Decoding) <Decoding>
@end
/* Extensions to NSObject for encoding and decoding. */
@interface NSObject (OptionalNewWithCoder)
+ newWithCoder: (Coder*)aDecoder;
@end
@interface NSObject (CoderAdditions)
/* <SelfCoding> not needed because of NSCoding */
/* These methods here temporarily until ObjC runtime category bug fixed */
- classForConnectedCoder:aRmc;
+ (void) encodeObject: anObject withConnectedCoder: aRmc;
@end
extern id CoderSignatureMalformedException;
#endif /* __Coder_h_OBJECTS_INCLUDE */