blob: b5c1c6680937c39757d11a7d129f8f498ce1c31a (
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
|
/* -*- mode: objc; coding: utf-8 -*- */
/* Copyright 2008, Matthias Benkard. */
#import "MLKLinkedList.h"
#import "MLKCons.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
|
