blob: 73b6d7de90aa3b1f2cbcdd0a108b9ca6cec397b5 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
|
/* -*- mode: objc; coding: utf-8 -*- */
/* Étoilisp/Mulklisp, a Common Lisp subset for the Étoilé runtime.
* Copyright (C) 2008 Matthias Andreas Benkard.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or (at
* your option) any later version.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#import "MLKLinkedList.h"
#import "MLKCons.h"
#import "runtime-compatibility.h"
@implementation MLKLinkedList
-(MLKLinkedList*) init
{
self = [super init];
_firstCons = nil;
return self;
}
-(MLKLinkedList*) initWithCons:(MLKCons*)cons
{
self = [super init];
ASSIGN (_firstCons, cons);
return self;
}
-(void) push: (id)object
{
ASSIGN (_firstCons, [MLKCons cons:object with:_firstCons]);
}
-(id) pop
{
id retval = [_firstCons car];
RETAIN (retval);
ASSIGN (_firstCons, [_firstCons cdr]);
AUTORELEASE (retval);
return retval;
}
-(MLKCons*) firstCons
{
return _firstCons;
}
-(BOOL) null
{
return !_firstCons;
}
#ifdef __OBJC2__
-(NSUInteger) countByEnumeratingWithState:(NSFastEnumerationState *)state objects:(id *)stackbuf count:(NSUInteger)len
{
if (state->state == 0)
{
state->mutationsPtr = &_firstCons;
state->extra[0] = (unsigned long) &_firstCons;
}
MLKCons *currentCons = (MLKCons*) state->extra[0];
if (currentCons)
{
state->itemsPtr = [currentCons car];
return 1;
}
else
return 0;
}
#endif
-(void) dealloc
{
RELEASE (_firstCons);
[super dealloc];
}
@end
|
