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/* Interface for NSInvocation concrete classes for GNUStep
Copyright (C) 1998 Free Software Foundation, Inc.
Written: Adam Fedor <fedor@gnu.org>
Date: Nov 2000
This file is part of the GNUstep Base Library.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 31 Milk Street #960789 Boston, MA 02196 USA.
*/
#ifndef __GSInvocation_h_GNUSTEP_BASE_INCLUDE
#define __GSInvocation_h_GNUSTEP_BASE_INCLUDE
#import "Foundation/NSInvocation.h"
@class NSMutableData;
@class NSPointerArray;
typedef struct {
int offset;
unsigned size;
const char *type;
const char *qtype;
unsigned align;
unsigned qual;
BOOL isReg;
} NSArgumentInfo;
@interface GSFFIInvocation : NSInvocation
{
@public
uint8_t _retbuf[32]; // Return values of up to 32 bytes here.
NSMutableData *_frame; // Frame information for invoking.
NSPointerArray *_extra; // Extra FFI data to be released.
}
@end
@interface GSFFIInvocation (FFI)
- (void) setupFrameFFI: (NSMethodSignature*)sig;
@end
@interface GSFFCallInvocation : NSInvocation
{
}
@end
@interface GSDummyInvocation : NSInvocation
{
}
@end
@interface NSInvocation (DistantCoding)
- (BOOL) encodeWithDistantCoder: (NSCoder*)coder passPointers: (BOOL)passp;
@end
@interface NSMethodSignature (GNUstep)
- (const char*) methodType;
- (NSArgumentInfo*) methodInfo;
@end
extern void
GSFFCallInvokeWithTargetAndImp(NSInvocation *inv, id anObject, IMP imp);
extern void
GSFFIInvokeWithTargetAndImp(NSInvocation *inv, id anObject, IMP imp);
#define CLEAR_RETURN_VALUE_IF_OBJECT \
do {\
if (_validReturn && *_inf[0].type == _C_ID) \
{ \
RELEASE (*(id*) _retval); \
*(id*) _retval = nil; \
_validReturn = NO; \
}\
} while (0)
#define RETAIN_RETURN_VALUE IF_NO_ARC(do { if (*_inf[0].type == _C_ID) RETAIN (*(id*) _retval);} while (0))
#define _inf ((NSArgumentInfo*)_info)
#endif
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