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/** Implementation of ObjC runtime for GNUStep
Copyright (C) 1995 Free Software Foundation, Inc.
Written by: Andrew Kachites McCallum <mccallum@gnu.ai.mit.edu>
Date: Aug 1995
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
Library 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., 51 Franklin Street, Fifth Floor,
Boston, MA 02111 USA.
<title>NSObjCRuntime class reference</title>
$Date: 2008-06-08 11:38:33 +0100 (Sun, 08 Jun 2008) $ $Revision: 26606 $
*/
#include "config.h"
#include "GNUstepBase/preface.h"
#include "Foundation/NSException.h"
#include "Foundation/NSObjCRuntime.h"
#include "Foundation/NSString.h"
#include <mframe.h>
#include <string.h>
/**
* Returns a string object containing the name for
* aProtocol. If aProtocol is 0, returns nil.
*/
NSString *
NSStringFromProtocol(Protocol *aProtocol)
{
if (aProtocol != (Protocol*)0)
return [NSString stringWithUTF8String: (const char*)[aProtocol name]];
return nil;
}
/**
* Returns the protocol whose name is supplied in the
* aProtocolName argument, or 0 if a nil string is supplied.
*/
Protocol *
NSProtocolFromString(NSString *aProtocolName)
{
if (aProtocolName != nil)
{
int len = [aProtocolName length];
char buf[len+1];
[aProtocolName getCString: buf
maxLength: len + 1
encoding: NSASCIIStringEncoding];
return GSProtocolFromName (buf);
}
return (Protocol*)0;
}
/**
* Returns a string object containing the name for
* aSelector. If aSelector is 0, returns nil.
*/
NSString *
NSStringFromSelector(SEL aSelector)
{
if (aSelector != (SEL)0)
return [NSString stringWithUTF8String: GSNameFromSelector(aSelector)];
return nil;
}
/**
* Returns the selector whose name is supplied in the
* aSelectorName argument, or 0 if a nil string is supplied.
*/
SEL
NSSelectorFromString(NSString *aSelectorName)
{
if (aSelectorName != nil)
{
int len = [aSelectorName length];
char buf[len+1];
[aSelectorName getCString: buf
maxLength: len + 1
encoding: NSASCIIStringEncoding];
return GSSelectorFromName (buf);
}
return (SEL)0;
}
/**
* Returns the class whose name is supplied in the
* aClassName argument, or 0 if a nil string is supplied.
*/
Class
NSClassFromString(NSString *aClassName)
{
if (aClassName != nil)
{
int len = [aClassName length];
char buf[len+1];
[aClassName getCString: buf
maxLength: len + 1
encoding: NSASCIIStringEncoding];
return GSClassFromName (buf);
}
return (Class)0;
}
/**
* Returns an [NSString] object containing the class name for
* aClass. If aClass is 0, returns nil.
*/
NSString *
NSStringFromClass(Class aClass)
{
if (aClass != (Class)0)
return [NSString stringWithUTF8String: (char*)GSNameFromClass(aClass)];
return nil;
}
/**
* When provided with a C string containing encoded type information,
* this method extracts size and alignment information for the specified
* type into the buffers pointed to by sizep and alignp.<br />
* If either sizep or alignp is a nil pointer, the corresponding data is
* not extracted.<br />
* The function returns a pointer to the type information C string.
*/
const char *
NSGetSizeAndAlignment(const char *typePtr, unsigned *sizep, unsigned *alignp)
{
NSArgumentInfo info;
typePtr = mframe_next_arg(typePtr, &info, 0);
if (sizep)
*sizep = info.size;
if (alignp)
*alignp = info.align;
return typePtr;
}
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