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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@597 72102866-910b-0410-8b05-ffd578937521
107 lines
3 KiB
Objective-C
107 lines
3 KiB
Objective-C
# line 1 "NSCTemplateValue.m" /* So gdb knows which file we are in */
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/* NSCTemplateValue - Object encapsulation for C types.
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Copyright (C) 1993,1994 Free Software Foundation, Inc.
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Written by: Adam Fedor <fedor@boulder.colorado.edu>
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Date: Mar 1995
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This file is part of the GNU Objective C Class Library.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, write to the Free
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Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <Foundation/NSConcreteValue.h>
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#include <Foundation/NSString.h>
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#include <Foundation/NSException.h>
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#include <Foundation/NSCoder.h>
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#include <objects/stdobjects.h>
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/* This file should be run through a preprocessor with the macro TYPE_ORDER
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defined to a number from 0 to 4 cooresponding to each value type */
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#if TYPE_ORDER == 0
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# define NSCTemplateValue NSNonretainedObjectValue
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# define TYPE_METHOD nonretainedObjectValue
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# define TYPE_NAME id
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#elif TYPE_ORDER == 1
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# define NSCTemplateValue NSPointValue
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# define TYPE_METHOD pointValue
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# define TYPE_NAME NSPoint
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#elif TYPE_ORDER == 2
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# define NSCTemplateValue NSPointerValue
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# define TYPE_METHOD pointerValue
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# define TYPE_NAME void *
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#elif TYPE_ORDER == 3
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# define NSCTemplateValue NSRectValue
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# define TYPE_METHOD rectValue
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# define TYPE_NAME NSRect
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#elif TYPE_ORDER == 4
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# define NSCTemplateValue NSSizeValue
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# define TYPE_METHOD sizeValue
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# define TYPE_NAME NSSize
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#endif
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@implementation NSCTemplateValue
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// Allocating and Initializing
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- initValue:(const void *)value
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withObjCType:(const char *)type
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{
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typedef _dt = data;
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self = [super init];
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data = *(_dt *)value;
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return self;
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}
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// Accessing Data
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- (void)getValue:(void *)value
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{
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if (!value) {
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[NSException raise:NSInvalidArgumentException
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format:@"Cannot copy value into NULL buffer"];
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/* NOT REACHED */
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}
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memcpy( value, &data, objc_sizeof_type([self objCType]) );
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}
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- (const char *)objCType
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{
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typedef _dt = data;
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return @encode(_dt);
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}
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- (TYPE_NAME)TYPE_METHOD
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{
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return data;
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}
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// NSCoding
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- (void)encodeWithCoder:(NSCoder *)coder
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{
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const char *type;
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[super encodeWithCoder:coder];
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type = [self objCType];
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[coder encodeValueOfObjCType:@encode(char *) at:&type];
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[coder encodeValueOfObjCType:type at:&data];
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}
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- (id)initWithCoder:(NSCoder *)coder
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{
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[NSException raise:NSInconsistentArchiveException
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format:@"Cannot unarchive class - Need NSValueDecoder."];
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return self;
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}
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@end
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