libs-base/Source/NSMethodSignature.m
Scott Christley 369c38280a Remove dependency upon config.h by headers files and include
directly in source files because the config.h file is system
dependent, used just for compiling the source, and should
not be installed.
Some minor bug fixes.


git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@2619 72102866-910b-0410-8b05-ffd578937521
1997-11-06 00:51:23 +00:00

111 lines
2.7 KiB
Objective-C

/* Implementation of NSMethodSignature for GNUStep
Copyright (C) 1994, 1995, 1996 Free Software Foundation, Inc.
Written by: Andrew Kachites McCallum <mccallum@gnu.ai.mit.edu>
Date: August 1994
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 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.
*/
#include <config.h>
#include <gnustep/base/preface.h>
#include <Foundation/NSMethodSignature.h>
#include <Foundation/NSException.h>
#include <Foundation/NSString.h>
static int
types_get_size_of_arguments(const char *types)
{
const char* type = objc_skip_typespec (types);
return atoi (type);
}
static int
types_get_number_of_arguments (const char *types)
{
int i = 0;
const char* type = types;
while (*type)
{
type = objc_skip_argspec (type);
i += 1;
}
return i - 1;
}
@implementation NSMethodSignature
+ (NSMethodSignature*) signatureWithObjCTypes: (const char*)t
{
int len;
NSMethodSignature *newMs = [NSMethodSignature alloc];
len = strlen(t);
OBJC_MALLOC(newMs->types, char, len);
memcpy(newMs->types, t, len);
len = strlen(t); /* xxx */
OBJC_MALLOC(newMs->returnTypes, char, len);
memcpy(newMs->returnTypes, t, len);
newMs->returnTypes[len-1] = '\0';
newMs->argFrameLength = types_get_size_of_arguments(t);
newMs->returnFrameLength = objc_sizeof_type(t);
newMs->numArgs = types_get_number_of_arguments(t);
return newMs;
}
- (NSArgumentInfo) argumentInfoAtIndex: (unsigned)index
{
if (index >= numArgs)
[NSException raise:NSInvalidArgumentException
format:@"Index too high."];
[self notImplemented:_cmd];
return (NSArgumentInfo){0,0,""};
}
- (unsigned) frameLength
{
return argFrameLength;
}
- (BOOL) isOneway
{
[self notImplemented:_cmd];
return NO;
}
- (unsigned) methodReturnLength
{
return returnFrameLength;
}
- (char*) methodReturnType
{
return returnTypes;
}
- (unsigned) numberOfArguments
{
return numArgs;
}
- (void) dealloc
{
OBJC_FREE(types);
OBJC_FREE(returnTypes);
[super dealloc];
}
@end